{"claim_boundary":"Same Path1 keyframes + prompt across models. Speed=API latency. Precision/Recall vs weak folder labels (not gold). Not dual-path final theft.","updated_at":"2026-09-11 17:54:17","source_cases":"C:/shawn/1code/1project-new/aistore/outputs/path1_vlm_eval/cases","page":"/path1_vlm_bench.html","prompt_chars":1172,"prompt_preview":"You are a retail loss-prevention assistant. Given keyframes and L1 events, decide if the person is stealing by concealing unpaid merchandise. Labels (pick exactly ONE): - steal: un","leaderboard":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","status":"ok","p50_ms":1416.7,"mean_ms":1441.1,"p90_ms":1741.5,"precision":0.9615,"recall":0.3731,"specificity":0.963,"f1":0.5376,"n_ok":103,"n_err":0,"fp_kept":1,"miss_pos":28,"error":null},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","status":"ok","p50_ms":2964.0,"mean_ms":2979.1,"p90_ms":3497.2,"precision":0.9091,"recall":0.8955,"specificity":0.7778,"f1":0.9023,"n_ok":103,"n_err":0,"fp_kept":6,"miss_pos":7,"error":null},{"profile":"qwen_flash","model":"qwen3-vl-flash","status":"ok","p50_ms":3176.4,"mean_ms":3169.7,"p90_ms":3976.0,"precision":0.8548,"recall":0.791,"specificity":0.6667,"f1":0.8217,"n_ok":103,"n_err":0,"fp_kept":9,"miss_pos":14,"error":null},{"profile":"qwen_plus","model":"qwen-vl-plus","status":"ok","p50_ms":2239.8,"mean_ms":2688.6,"p90_ms":2924.8,"precision":0.9459,"recall":0.5224,"specificity":0.9259,"f1":0.6731,"n_ok":103,"n_err":0,"fp_kept":2,"miss_pos":32,"error":null}],"profiles":[{"profile":"deepseek_flash","status":"ok","error":null,"model":"deepseek-v4-flash","provider":"deepseek","api_base":"https://api.deepseek.com","n_cases":103,"metrics":{"n_cases":103,"n_ok":103,"n_err":0,"mean_latency_ms":1441.1,"p50_latency_ms":1416.7,"p90_latency_ms":1741.5,"precision":0.9615,"recall":0.3731,"specificity":0.963,"f1":0.5376,"tp":25,"fp":1,"tn":26,"fn":42,"fp_kept":1,"miss_pos":28,"fp_suppressed":26,"keep_ok":25,"vlm_label_counts":{"uncertain":20,"browse_fp":57,"conceal_unpaid":26},"agreement_hints":{"uncertain":14,"observational":9,"fp_suppressed":26,"fp_kept":1,"keep_ok":25,"miss_pos":28}},"updated_at":"2026-09-11 17:54:14","n_case_rows":103},{"profile":"doubao_mini","status":"ok","error":null,"model":"doubao-seed-2-0-mini-260428","provider":"doubao","api_base":"https://ark.cn-beijing.volces.com/api/v3","n_cases":103,"metrics":{"n_cases":103,"n_ok":103,"n_err":0,"mean_latency_ms":2979.1,"p50_latency_ms":2964.0,"p90_latency_ms":3497.2,"precision":0.9091,"recall":0.8955,"specificity":0.7778,"f1":0.9023,"tp":60,"fp":6,"tn":21,"fn":7,"fp_kept":6,"miss_pos":7,"fp_suppressed":21,"keep_ok":60,"vlm_label_counts":{"conceal_unpaid":69,"browse_fp":32,"uncertain":2},"agreement_hints":{"keep_ok":60,"observational":9,"fp_suppressed":21,"fp_kept":6,"miss_pos":7}},"updated_at":"2026-09-11 17:51:05","n_case_rows":103},{"profile":"qwen_flash","status":"ok","error":null,"model":"qwen3-vl-flash","provider":"qwen","api_base":"https://dashscope.aliyuncs.com/compatible-mode/v1","n_cases":103,"metrics":{"n_cases":103,"n_ok":103,"n_err":0,"mean_latency_ms":3169.7,"p50_latency_ms":3176.4,"p90_latency_ms":3976.0,"precision":0.8548,"recall":0.791,"specificity":0.6667,"f1":0.8217,"tp":53,"fp":9,"tn":18,"fn":14,"fp_kept":9,"miss_pos":14,"fp_suppressed":18,"keep_ok":53,"vlm_label_counts":{"conceal_unpaid":65,"uncertain":1,"browse_fp":37},"agreement_hints":{"keep_ok":53,"observational":9,"fp_suppressed":18,"fp_kept":9,"miss_pos":14}},"updated_at":"2026-09-11 17:45:17","n_case_rows":103},{"profile":"qwen_plus","status":"ok","error":null,"model":"qwen-vl-plus","provider":"qwen","api_base":"https://dashscope.aliyuncs.com/compatible-mode/v1","n_cases":103,"metrics":{"n_cases":103,"n_ok":103,"n_err":0,"mean_latency_ms":2688.6,"p50_latency_ms":2239.8,"p90_latency_ms":2924.8,"precision":0.9459,"recall":0.5224,"specificity":0.9259,"f1":0.6731,"tp":35,"fp":2,"tn":25,"fn":32,"fp_kept":2,"miss_pos":32,"fp_suppressed":25,"keep_ok":35,"vlm_label_counts":{"conceal_unpaid":36,"browse_fp":51,"normal_checkout":14,"steal":2},"agreement_hints":{"keep_ok":35,"observational":9,"fp_suppressed":25,"fp_kept":2,"miss_pos":32}},"updated_at":"2026-09-11 17:39:12","n_case_rows":103}],"dataset":{"n_total":111,"n_theft":56,"n_normal":38,"n_unknown":17,"by_weak_label":{"positive":56,"unknown":17,"negative":38},"by_corpus":{"demo":31,"hf_tcc":30,"intel":4,"store":8,"ucf":8,"zenodo":30},"n_pretrigger":25,"n_vlm_steal_clips":11,"source":"outputs/path1_vlm_eval/summary.json","model":"qwen-vl-plus","updated_at":"2026-09-11 17:33:29","note":"weak 文件夹标签：theft/shoplifting=偷窃(positive)，normal=正常(negative)；store/intel 多为 unknown"},"exists":true,"summary_path":"outputs/path1_vlm_model_bench/summary.json","prompt":"You are a retail loss-prevention assistant. Given keyframes and L1 events, decide if the person is stealing by concealing unpaid merchandise.\nLabels (pick exactly ONE):\n- steal: unpaid concealment / shoplifting intent visible across frames.\n- conceal_unpaid: putting a product into a bag, pocket, under clothes, or otherwise hiding it on the body; infer from overall multi-frame behavior, not a single grab.\n- browse_fp: normal shopping — picking up, holding, examining, carrying visibly, placing into a cart/basket, or returning to the shelf.\n- normal_checkout: paying / checkout.\n- uncertain: cannot tell from the frames.\nRules:\n1) Picking up or holding a product alone is NOT steal/conceal_unpaid → use browse_fp or uncertain.\n2) Only steal/conceal_unpaid when visuals show concealment into bag/pocket/clothes (or clear multi-frame hiding intent).\n3) L1 events (qty_spike, multi_take, conceal, risk_score) are soft hints only; do not trust them without matching visual evidence.\n4) The label field must be a single token from the list above (never join options with |).\nAnswer JSON only: {\"label\":\"conceal_unpaid\",\"confidence\":0-1,\"rationale\":\"...\",\"evidence\":[\"...\"]}.","prompt_source":"aistore.l2.DEFAULT_VLM_PROMPT","combos":{"exists":true,"updated_at":"2026-11-11 16:42:47","axes":{"l1":["world","wedetect","gdino"],"vlm":["qwen-vl-plus","qwen3-vl-flash","doubao-seed-2-0-mini","deepseek-v4-flash"]},"note":"组合轴：L1 后端 × VLM。World×VLM 已测（同关键帧）；教师 L1×VLM 待跑。全方案口径：未预触发=不报（clip 级弱标签）。","best_full_f1":{"l1":"world","vlm":"doubao-seed-2-0-mini-260428","f1":0.2571},"rows":[{"l1":"world","l1_role":"现网","vlm":"—","status":"measured","n_pretrigger":25,"n_inventory":111,"l1_metrics":{"n_labeled":94,"tp":9,"fp":12,"tn":26,"fn":47,"precision":0.4286,"recall":0.1607,"accuracy":0.3723,"f1":0.2338},"vlm_among_pre":null,"full_pipeline":null,"p50_ms":null,"note":"仅 L1 触发=报；未接 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VLM；全方案未预触发=不报"},{"l1":"world","l1_role":"现网","vlm":"doubao-seed-2-0-mini-260428","profile":"doubao_mini","status":"measured","n_pretrigger":25,"n_inventory":111,"n_vlm_steal_clips":16,"l1_metrics":{"n_labeled":94,"tp":9,"fp":12,"tn":26,"fn":47,"precision":0.4286,"recall":0.1607,"accuracy":0.3723,"f1":0.2338},"vlm_among_pre":{"n_labeled":21,"tp":9,"fp":5,"tn":7,"fn":0,"precision":0.6429,"recall":1.0,"accuracy":0.7619,"f1":0.7826},"full_pipeline":{"n_labeled":94,"tp":9,"fp":5,"tn":33,"fn":47,"precision":0.6429,"recall":0.1607,"accuracy":0.4468,"f1":0.2571},"p50_ms":2964.0,"case_level":{"precision":0.9091,"recall":0.8955,"f1":0.9023},"note":"World L1 关键帧 × 该 VLM；全方案未预触发=不报"},{"l1":"world","l1_role":"现网","vlm":"deepseek-v4-flash","profile":"deepseek_flash","status":"measured","n_pretrigger":25,"n_inventory":111,"n_vlm_steal_clips":8,"l1_metrics":{"n_labeled":94,"tp":9,"fp":12,"tn":26,"fn":47,"precision":0.4286,"recall":0.1607,"accuracy":0.3723,"f1":0.2338},"vlm_among_pre":{"n_labeled":21,"tp":7,"fp":1,"tn":11,"fn":2,"precision":0.875,"recall":0.7778,"accuracy":0.8571,"f1":0.8235},"full_pipeline":{"n_labeled":94,"tp":7,"fp":1,"tn":37,"fn":49,"precision":0.875,"recall":0.125,"accuracy":0.4681,"f1":0.2188},"p50_ms":1416.7,"case_level":{"precision":0.9615,"recall":0.3731,"f1":0.5376},"note":"World L1 关键帧 × 该 VLM；全方案未预触发=不报"},{"l1":"wedetect","l1_role":"教师","vlm":"—","status":"pending","hq_od_recall":0.8,"note":"尚无 qty_pretrigger_eval_wedetect；VLM 组合未跑"},{"l1":"gdino","l1_role":"教师","vlm":"—","status":"pending","hq_od_recall":0.93,"note":"尚无 qty_pretrigger_eval_gdino；VLM 组合未跑"},{"l1":"wedetect","l1_role":"教师","vlm":"qwen-vl-plus","status":"pending","hq_od_recall":0.8,"note":"需先跑满 L1(wedetect) 再对该触发集跑 VLM"},{"l1":"wedetect","l1_role":"教师","vlm":"qwen3-vl-flash","status":"pending","hq_od_recall":0.8,"note":"需先跑满 L1(wedetect) 再对该触发集跑 VLM"},{"l1":"wedetect","l1_role":"教师","vlm":"doubao-seed-2-0-mini","status":"pending","hq_od_recall":0.8,"note":"需先跑满 L1(wedetect) 再对该触发集跑 VLM"},{"l1":"wedetect","l1_role":"教师","vlm":"deepseek-v4-flash","status":"pending","hq_od_recall":0.8,"note":"需先跑满 L1(wedetect) 再对该触发集跑 VLM"},{"l1":"gdino","l1_role":"教师","vlm":"qwen-vl-plus","status":"pending","hq_od_recall":0.93,"note":"需先跑满 L1(gdino) 再对该触发集跑 VLM"},{"l1":"gdino","l1_role":"教师","vlm":"qwen3-vl-flash","status":"pending","hq_od_recall":0.93,"note":"需先跑满 L1(gdino) 再对该触发集跑 VLM"},{"l1":"gdino","l1_role":"教师","vlm":"doubao-seed-2-0-mini","status":"pending","hq_od_recall":0.93,"note":"需先跑满 L1(gdino) 再对该触发集跑 VLM"},{"l1":"gdino","l1_role":"教师","vlm":"deepseek-v4-flash","status":"pending","hq_od_recall":0.93,"note":"需先跑满 L1(gdino) 再对该触发集跑 VLM"}]},"error_review":{"by_profile":{"deepseek_flash":{"fp_kept":[{"kind":"fp_kept","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"hf_normal__Normal__3___C_2__conceal__0","clip_id":"hf_normal__Normal (3)","weak_label":"negative","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"rationale":"The person picks up an orange item from the table and, across the sequence, moves it down toward his hip/pocket area where it disappears from view, matching the L1 conceal hint (pocket/hip). This multi-frame behavior indicates concealment rather than visible carrying or browsing.","latency_ms":1498.1,"agreement_hint":"fp_kept","center_ts":5.166666666666667,"corpus":"hf_tcc","media_url":"/api/media/dataset/hf_tcc_shoplifting__Shoplifting%20-%20MNNIT__Normal__Normal%20%283%29.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=hf_normal__Normal__3___C_2__conceal__0&file=kf_00_4.03s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__3___C_2__conceal__0&file=kf_01_4.80s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__3___C_2__conceal__0&file=kf_02_5.53s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__3___C_2__conceal__0&file=kf_03_6.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"fp_kept","rationale":"The person picks up an orange item from the table and, across the sequence, moves it down toward his hip/pocket area where it disappears from view, matching the L1 conceal hint (pocket/hip). This multi-frame behavior indicates concealment rather than visible carrying or browsing.","latency_ms":1498.1},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"fp_suppressed","rationale":"The customer picks up, examines, and then places the orange product back onto the table, which is normal shopping behavior consistent with browsing merchandise. No concealment of unpaid items into pockets, bags, or under clothes is observed across the multi-frame sequence.","latency_ms":2349.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' and zone 'hip', supported by trajectory evidence showing co-disappearance (item vanishes from view after being handled near the hip). The person is seen holding an orange item, then placing it down on the table—however, the motion and context (including the second person’s observation and the item's prior handling) suggest the item may have been concealed in the pocket before being set down, especially given the high model score (0.85) and dwell ratio of 1.0 indicating sustained focus on that area. Since the item was not placed in a cart or returned to shelf, and no payment is observed, concealment is inferred. This aligns with 'conceal_unpaid' as defined: hiding into pocket/clothes with multi-frame intent.","latency_ms":4332.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"fp_suppressed","rationale":"The individual is examining an orange object in his hands, placing it on a table, and appears to be engaged in normal browsing behavior. There is no visible concealment into a bag, pocket, or under clothing, and the actions are consistent with typical shopping activity.","latency_ms":2945.8}]}],"miss_pos":[{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting030_x264__C_11__1","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"rationale":"The keyframes show multiple people in a retail environment, with some individuals holding or examining items near shelves and counters. There is no clear visual evidence of concealing unpaid merchandise into bags, pockets, or clothing across the frames. The L1 event is a soft qty_spike hint without matching visual concealment evidence, so the behavior appears to be normal shopping or browsing.","latency_ms":1452.5,"agreement_hint":"miss_pos","center_ts":203.16666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__1&file=kf_00_202.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__1&file=kf_01_202.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__1&file=kf_02_203.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__1&file=kf_03_204.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show multiple people in a retail environment, with some individuals holding or examining items near shelves and counters. There is no clear visual evidence of concealing unpaid merchandise into bags, pockets, or clothing across the frames. The L1 event is a soft qty_spike hint without matching visual concealment evidence, so the behavior appears to be normal shopping or browsing.","latency_ms":1452.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the sleeveless patterned top moves an item from the shelf into their brown bag across sequential frames, hiding the product in the bag rather than placing it visibly for checkout or return, matching the definition of concealing unpaid merchandise.","latency_ms":3074.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer in the blue shirt (C#11) is seen reaching toward a shelf, then quickly moving with a sudden motion while holding an item close to their body. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, and the person’s posture—bending slightly, keeping arms close, and moving away from the display without placing the item in a visible cart or basket—indicates concealment intent. No clear checkout or return action is observed, and the behavior deviates from normal browsing. The presence of other customers nearby does not negate the suspicious multi-frame pattern of hiding merchandise.","latency_ms":3507.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"steal","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person in the orange shirt is seen concealing an item under their arm while standing near the checkout counter, indicating clear intent to shoplift. This behavior aligns with the 'steal' label as it shows concealment of unpaid merchandise.","latency_ms":2066.3}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting030_x264__C_11__qty_spike__4","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"rationale":"The keyframes show multiple shoppers in a store, with individuals holding bags and items, but no clear visual evidence of concealing unpaid merchandise into pockets, bags, or clothing. The L1 qty_spike event is a soft hint and not sufficient without matching visual concealment.","latency_ms":1301.1,"agreement_hint":"miss_pos","center_ts":203.16666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__qty_spike__4&file=kf_00_202.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__qty_spike__4&file=kf_01_202.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__qty_spike__4&file=kf_02_203.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__qty_spike__4&file=kf_03_204.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show multiple shoppers in a store, with individuals holding bags and items, but no clear visual evidence of concealing unpaid merchandise into pockets, bags, or clothing. The L1 qty_spike event is a soft hint and not sufficient without matching visual concealment.","latency_ms":1301.1},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the sleeveless patterned top moves their arm from reaching toward merchandise on the shelf to tucking an item into their brown bag across multiple consecutive frames, demonstrating clear concealment of an unpaid product.","latency_ms":2149.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer in the blue shirt (C#11) is seen reaching into a display area and then quickly moving toward their body while holding an item. In the final frame, they appear to be tucking or hiding the item under their clothing or into a bag, consistent with concealment behavior. The L1 event 'qty_spike' and 'taken_proxy>=2' support multiple items being taken, and the multi-frame sequence shows intent to hide rather than return or place in cart. No visible payment occurs, and the action is inconsistent with normal browsing.","latency_ms":2923.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"steal","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the blue shirt is seen placing an item into their waistband or pocket area, which is consistent with concealment behavior. This action, combined with the proximity to the checkout counter and the presence of other shoppers, strongly suggests an intent to shoplift.","latency_ms":2136.6}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting030_x264__C_1__0","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"rationale":"The keyframes show individuals standing and interacting near a display counter, with no visible concealment of merchandise into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding intent across frames.","latency_ms":1161.5,"agreement_hint":"miss_pos","center_ts":158.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__0&file=kf_00_157.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__0&file=kf_01_158.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__0&file=kf_02_158.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__0&file=kf_03_159.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show individuals standing and interacting near a display counter, with no visible concealment of merchandise into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding intent across frames.","latency_ms":1161.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the green plaid shirt adjusts their bag in a sequence of frames, with the bag appearing to shift position toward their torso in a way consistent with hiding an unpaid item, paired with the L1 qty_spike event indicating a potential product take.","latency_ms":3069.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (in the plaid shirt, center-right) is seen bending down and placing an item into a bag or pocket area near their waist/hip while others are distracted. The L1 event 'qty_spike' and 'handheld_peak>=2' suggest multiple items were handled quickly, and the body posture (bending, hiding motion) combined with the context of a retail store strongly indicates concealment of unpaid merchandise. This matches the definition of 'conceal_unpaid' — hiding on the body — not just browsing.","latency_ms":2728.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen holding an item in their hand and appears to be examining or considering it, consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or clothing, and the actions do not indicate shoplifting intent.","latency_ms":2089.1}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting030_x264__C_1__qty_spike__3","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"rationale":"The keyframes show multiple people in a retail environment, with some individuals holding or examining items near a display counter. There is no clear visual evidence of a person concealing unpaid merchandise into a bag, pocket, or clothing across the frames. The L1 event is a soft qty_spike hint, but the visuals do not confirm concealment or shoplifting intent.","latency_ms":2239.6,"agreement_hint":"miss_pos","center_ts":158.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__qty_spike__3&file=kf_00_157.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__qty_spike__3&file=kf_01_158.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__qty_spike__3&file=kf_02_158.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__qty_spike__3&file=kf_03_159.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show multiple people in a retail environment, with some individuals holding or examining items near a display counter. There is no clear visual evidence of a person concealing unpaid merchandise into a bag, pocket, or clothing across the frames. The L1 event is a soft qty_spike hint, but the visuals do not confirm concealment or shoplifting intent.","latency_ms":2239.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the green plaid shirt adjusts their bag in a sequence of frames, with the bag positioned to conceal items, consistent with hiding unpaid merchandise. The L1 qty_spike event provides additional soft context supporting potential concealment, and the multi-frame behavior shows intent to hide items rather than normal browsing.","latency_ms":2861.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (in blue shirt) is seen bending down and reaching toward the floor near their feet while holding a large brown bag. In the context of the L1 event 'qty_spike' and 'handheld_peak>=2', combined with the posture suggesting an attempt to hide or retrieve an item, this behavior strongly indicates concealment of unpaid merchandise. The person’s hand movement near the bag and lower body suggests placing or retrieving an item into the bag without paying. No clear checkout or return action is observed.","latency_ms":2898.2},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen holding and examining a product in their hand, consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or under clothing, and the actions appear to be part of a typical browsing process.","latency_ms":3339.3}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting039_x264__C_2__0","clip_id":"ucf_theft__Shoplifting039_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"rationale":"The frames show a person standing near a display table and shelf, facing away from the camera. No concealment into bag, pocket, or clothing is visible. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1405.5,"agreement_hint":"miss_pos","center_ts":82.36666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting039_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__0&file=kf_00_81.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__0&file=kf_01_82.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__0&file=kf_02_82.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__0&file=kf_03_83.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a person standing near a display table and shelf, facing away from the camera. No concealment into bag, pocket, or clothing is visible. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1405.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the customer is seen moving items from a display counter and concealing them under their clothing (waistband/pants area) in a manner consistent with hiding unpaid merchandise, matching multi-frame behavior indicating concealment.","latency_ms":2527.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The person is standing near a display area, facing the shelves and looking toward the entrance, with hands on hips in a relaxed posture. No visual evidence of picking up, holding, or concealing any item is present across the frames. The behavior aligns with normal browsing — possibly waiting or observing — and no concealment action (e.g., into bag/pocket/clothes) is observed. L1 event 'qty_spike' alone is insufficient without visual confirmation of theft.","latency_ms":2279.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen picking up an item, examining it briefly, and placing it into a shopping basket. There is no evidence of concealment or hiding the item on their body. The behavior aligns with normal shopping activity.","latency_ms":1742.5}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting039_x264__C_2__qty_spike__1","clip_id":"ucf_theft__Shoplifting039_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"rationale":"The frames show a person standing near a display table and then walking toward the exit. No visual evidence of concealing merchandise into a bag, pocket, or clothing is visible. The L1 qty_spike event is a soft hint and not supported by clear concealment behavior in the provided keyframes.","latency_ms":1481.4,"agreement_hint":"miss_pos","center_ts":82.36666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting039_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__qty_spike__1&file=kf_00_81.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__qty_spike__1&file=kf_01_82.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__qty_spike__1&file=kf_02_82.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__qty_spike__1&file=kf_03_83.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a person standing near a display table and then walking toward the exit. No visual evidence of concealing merchandise into a bag, pocket, or clothing is visible. The L1 qty_spike event is a soft hint and not supported by clear concealment behavior in the provided keyframes.","latency_ms":1481.4},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the customer is seen moving items from a display area and concealing them under their clothing (torso/waist area) without any visible payment action, consistent with hiding unpaid merchandise. The L1 qty_spike event aligns with the observed multi-frame behavior of handling and concealing products.","latency_ms":3204.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The person is standing near a display with hands on hips, facing the entrance/exit area, and appears to be browsing or waiting. No visual evidence of picking up, holding, or concealing any merchandise. The L1 event 'qty_spike' is likely a false positive (e.g., due to motion detection or proxy signal), but without actual visual confirmation of item handling or concealment, this behavior aligns with normal browsing. No concealment action is observed across frames.","latency_ms":3609.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is seen picking up an item, holding it briefly, and examining it while standing near the checkout counter. There is no visible concealment into a bag, pocket, or clothing, and the behavior aligns with normal shopping activity rather than shoplifting intent.","latency_ms":2523.8}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_10__1","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"rationale":"The keyframes show customers browsing and handling clothing on racks, with no visible concealment into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding unpaid merchandise.","latency_ms":1478.9,"agreement_hint":"miss_pos","center_ts":43.166666666666664,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__1&file=kf_00_42.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__1&file=kf_01_42.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__1&file=kf_02_43.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__1&file=kf_03_44.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show customers browsing and handling clothing on racks, with no visible concealment into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding unpaid merchandise.","latency_ms":1478.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer with dark hair in a white top is observed moving clothing from the rack and tucking it into the back of her jeans (under her clothing) across sequential frames, which constitutes hiding an unpaid product on her body.","latency_ms":2923.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing clothing racks, reaching for items, and appears to be examining or selecting garments in a normal shopping manner. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothes) or intent to steal. The L1 event 'qty_spike' with 'taken_proxy>=2' may reflect rapid item handling during selection, but without visible concealment, it remains consistent with browsing behavior.","latency_ms":2099.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is picking up and examining clothing items from the rack, which is consistent with normal shopping behavior. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames.","latency_ms":1515.5}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_10__qty_spike__4","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"rationale":"The keyframes show customers browsing and handling clothing on racks in a retail store. No clear concealment into bags, pockets, or clothing is visible across the frames. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding merchandise.","latency_ms":1186.9,"agreement_hint":"miss_pos","center_ts":43.166666666666664,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__qty_spike__4&file=kf_00_42.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__qty_spike__4&file=kf_01_42.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__qty_spike__4&file=kf_02_43.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__qty_spike__4&file=kf_03_44.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The keyframes show customers browsing and handling clothing on racks in a retail store. No clear concealment into bags, pockets, or clothing is visible across the frames. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding merchandise.","latency_ms":1186.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer in the white top and jeans is observed moving clothing from the rack and positioning items under her lifted top (waist area) across consecutive frames, which constitutes hiding unpaid merchandise on her body. The L1 qty_spike event aligns with the multi-frame behavior of taking items to conceal them, matching the visual evidence of hiding.","latency_ms":2776.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing clothes, reaching into a rack, picking up items, and examining them — typical shopping behavior. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothing) or hiding actions across frames. The L1 'qty_spike' event may reflect rapid item handling during browsing, not theft. No intent to steal is visible.","latency_ms":2088.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is seen picking up and examining clothing items from the rack, which is consistent with normal shopping behavior. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames.","latency_ms":2199.3}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_29__3","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"rationale":"The frames show customers browsing and handling clothing on racks. No clear concealment into bags, pockets, or clothing is visible across the sequence. The L1 qty_spike signal is a soft hint and lacks matching visual evidence of hiding merchandise.","latency_ms":1415.0,"agreement_hint":"miss_pos","center_ts":157.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__3&file=kf_00_156.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__3&file=kf_01_157.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__3&file=kf_02_157.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__3&file=kf_03_158.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks. No clear concealment into bags, pockets, or clothing is visible across the sequence. The L1 qty_spike signal is a soft hint and lacks matching visual evidence of hiding merchandise.","latency_ms":1415.0},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the white top and jeans is seen moving a clothing item from the rack and concealing it inside the back of their pants (under clothing) across sequential frames, which matches the definition of hiding unpaid merchandise. The L1 qty_spike event aligns with the observed action of taking an item to conceal, supporting the visual evidence.","latency_ms":3317.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customers are actively browsing clothing racks, picking up items, examining them, and placing them back or holding them while shopping—consistent with normal retail behavior. No visual evidence of concealment (e.g., putting items into bags/pockets/clothes without paying) is observed across the frames. The L1 event 'qty_spike' with 'handheld_peak>=2' may reflect brief handling but does not indicate theft without additional concealment cues.","latency_ms":2309.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are seen picking up, holding, and examining clothing items in a typical shopping manner. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames. The behavior aligns with normal browsing and product evaluation.","latency_ms":2214.3}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_29__qty_spike__8","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"rationale":"The frames show customers browsing and handling clothing on racks. No clear concealment into bags, pockets, or clothing is visible. The L1 qty_spike event is a soft hint and not supported by visual evidence of hiding merchandise.","latency_ms":1299.7,"agreement_hint":"miss_pos","center_ts":157.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__qty_spike__8&file=kf_00_156.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__qty_spike__8&file=kf_01_157.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__qty_spike__8&file=kf_02_157.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__qty_spike__8&file=kf_03_158.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks. No clear concealment into bags, pockets, or clothing is visible. The L1 qty_spike event is a soft hint and not supported by visual evidence of hiding merchandise.","latency_ms":1299.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"A woman in a white top and jeans is observed over multiple frames placing clothing items into her pants waistband, hiding them from view, which constitutes concealing unpaid merchandise. The L1 qty_spike event aligns with this multi-frame concealment behavior.","latency_ms":3892.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The person is actively browsing clothing racks, picking up and examining items, and holding them visibly while standing near the rack. There is no visual evidence of concealment into bags, pockets, or under clothes. The 'qty_spike' L1 event may reflect multiple items being handled quickly during normal browsing (e.g., checking several garments), but without any indication of hiding or attempting to leave without paying, this remains within normal shopping behavior.","latency_ms":2171.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are seen picking up, holding, and examining clothing items in a typical shopping manner. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames. The behavior aligns with normal browsing and product evaluation.","latency_ms":2258.6}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_48__5","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"rationale":"The frames show customers browsing and handling clothing on racks without any visible concealment into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1243.3,"agreement_hint":"miss_pos","center_ts":444.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__5&file=kf_00_443.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__5&file=kf_01_444.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__5&file=kf_02_444.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__5&file=kf_03_445.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks without any visible concealment into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1243.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The woman in the white top is seen holding a dark garment and moving it toward her body/back area across sequential frames, consistent with hiding an unpaid product, supported by the L1 qty_spike event indicating a potential take of multiple items.","latency_ms":2945.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.8,"agreement_hint":"keep_ok","rationale":"The customer (C#48) is seen browsing and then, in the final frames, appears to be placing an item into a bag or pocket while turning away from the rack—consistent with concealment behavior. The L1 event 'qty_spike' and 'taken_proxy>=2' support multiple items being handled, and the multi-frame sequence shows intent to hide merchandise without paying. No visible checkout or return action occurs.","latency_ms":2025.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen holding a garment close to their body and appears to be concealing it under their top or into their bag, consistent with shoplifting intent across multiple frames.","latency_ms":2868.3}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_48__qty_spike__12","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"rationale":"The keyframes show customers browsing and handling clothing on racks without any visible concealment into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding merchandise.","latency_ms":1783.8,"agreement_hint":"miss_pos","center_ts":444.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__qty_spike__12&file=kf_00_443.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__qty_spike__12&file=kf_01_444.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__qty_spike__12&file=kf_02_444.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__qty_spike__12&file=kf_03_445.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The keyframes show customers browsing and handling clothing on racks without any visible concealment into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding merchandise.","latency_ms":1783.8},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The woman in the white top is seen holding a dark bag and moving toward her torso/side, with multi-frame behavior showing she is concealing an item (consistent with hiding unpaid merchandise) rather than normal shopping actions like examining or placing items in a cart. The L1 qty_spike event aligns with this observed concealment behavior.","latency_ms":2825.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#48) is seen browsing and then, in the final frames, appears to be placing an item into a bag or pocket while turning away from the rack—consistent with concealment behavior. The L1 event 'qty_spike' with taken_proxy=2 and take_burst>=2/25s supports multiple items being handled quickly, and the visual sequence shows her moving toward the exit with a bag that may contain unpaid merchandise. No clear checkout or return action is observed.","latency_ms":2945.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person in the blue top is seen placing an item into her bag or under her clothing while browsing, which indicates an intent to conceal unpaid merchandise. This behavior aligns with shoplifting intent across multiple frames.","latency_ms":1846.4}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_4__0","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"rationale":"The frames show customers browsing and handling clothing on racks; no concealment into a bag, pocket, or clothing is visible. The L1 qty_spike is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1770.7,"agreement_hint":"miss_pos","center_ts":13.966666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__0&file=kf_00_12.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__0&file=kf_01_13.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__0&file=kf_02_14.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__0&file=kf_03_15.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks; no concealment into a bag, pocket, or clothing is visible. The L1 qty_spike is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1770.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer in the white top is observed moving an item toward their torso/under their clothing across sequential frames, consistent with hiding an unpaid product, matching the L1 event's handheld peak signal indicating multiple items handled with intent to conceal.","latency_ms":2844.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customers are actively browsing clothing racks, picking up items, examining them, and placing them back on the rack or holding them while shopping. There is no visual evidence of concealment (e.g., putting items into bags, pockets, or under clothes) or intent to steal. The L1 event 'qty_spike' with 'handheld_peak>=2' may reflect multiple items being held briefly for inspection, which is consistent with normal browsing behavior in a retail setting.","latency_ms":2491.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are seen browsing through clothing items on the racks, picking up and examining garments. There is no visible concealment of merchandise into bags, pockets, or under clothes. The behavior appears consistent with normal shopping activity.","latency_ms":1793.9}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_4__qty_spike__1","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"rationale":"The frames show customers browsing and handling clothing on racks; no concealment into bags, pockets, or clothing is visible. The L1 qty_spike is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":935.9,"agreement_hint":"miss_pos","center_ts":13.966666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__qty_spike__1&file=kf_00_12.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__qty_spike__1&file=kf_01_13.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__qty_spike__1&file=kf_02_14.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__qty_spike__1&file=kf_03_15.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks; no concealment into bags, pockets, or clothing is visible. The L1 qty_spike is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":935.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer in the white top is observed moving an item toward their torso/under their clothing across sequential frames, consistent with hiding an unpaid product, supported by the L1 qty_spike event indicating a quantity change associated with this activity.","latency_ms":2453.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customers are actively browsing clothing racks, picking up items, examining them, and placing them back or holding them while shopping—consistent with normal retail behavior. No visual evidence of concealment (e.g., putting items into bags/pockets/clothes) or intent to steal is observed across the frames. The L1 event 'qty_spike' is likely due to multiple items being handled in quick succession during normal browsing (e.g., trying on or comparing), not theft.","latency_ms":2496.2},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are seen examining and handling clothing items on the racks, consistent with normal shopping behavior. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames.","latency_ms":2091.4}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_5__2","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"rationale":"The frames show customers browsing and handling clothing on racks; no concealment into bags, pockets, or clothing is visible. The L1 qty_spike is a soft hint only and is not supported by clear visual evidence of hiding merchandise.","latency_ms":1211.6,"agreement_hint":"miss_pos","center_ts":149.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__2&file=kf_00_148.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__2&file=kf_01_149.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__2&file=kf_02_149.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__2&file=kf_03_150.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks; no concealment into bags, pockets, or clothing is visible. The L1 qty_spike is a soft hint only and is not supported by clear visual evidence of hiding merchandise.","latency_ms":1211.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is holding multiple clothing items while browsing the clothing rack, with no visible action of concealing items into a bag, pocket, or under clothes; the behavior is consistent with normal shopping activity of examining or carrying items while browsing.","latency_ms":2590.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing and handling clothing items on a rack, picking up, examining, and repositioning garments in a typical shopping manner. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothes) or intent to steal — the behavior aligns with normal shopping activity. The L1 event 'qty_spike' is likely due to rapid handling of multiple items while browsing, not theft.","latency_ms":3758.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is picking up and examining clothing items, holding them in their hands, and appears to be browsing through the merchandise. There is no visible concealment of items into bags, pockets, or under clothes, and the behavior aligns with normal shopping activity.","latency_ms":2268.7}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_5__qty_spike__7","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"rationale":"The keyframes show customers browsing and handling clothing on racks. No concealment into bags, pockets, or clothing is visible. The L1 qty_spike event is a soft hint and lacks matching visual evidence of theft.","latency_ms":1484.6,"agreement_hint":"miss_pos","center_ts":149.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__qty_spike__7&file=kf_00_148.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__qty_spike__7&file=kf_01_149.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__qty_spike__7&file=kf_02_149.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__qty_spike__7&file=kf_03_150.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The keyframes show customers browsing and handling clothing on racks. No concealment into bags, pockets, or clothing is visible. The L1 qty_spike event is a soft hint and lacks matching visual evidence of theft.","latency_ms":1484.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is holding multiple clothing items while standing at a clothing rack, engaging in normal shopping behavior of examining or selecting merchandise, with no visible concealment of unpaid items into bags, pockets, or under clothes.","latency_ms":3145.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing and handling clothing items on a rack, picking up, examining, and repositioning garments in a typical shopping manner. There is no visual evidence of concealment (e.g., putting items into bags, pockets, or under clothes) or intent to steal — the behavior aligns with normal shopping activity. The L1 event 'qty_spike' may reflect rapid handling but is not supported by visual concealment cues.","latency_ms":3533.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is picking up and examining clothing items, holding them against their body, and appears to be shopping normally. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames.","latency_ms":1591.0}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_71__6","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"rationale":"The person is seen browsing clothing racks and holding items near a bag, but there is no clear visual evidence of concealing unpaid merchandise into a bag, pocket, or clothing. The L1 qty_spike event is a soft hint and not sufficient for a concealment determination.","latency_ms":1461.0,"agreement_hint":"miss_pos","center_ts":665.9666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__6&file=kf_00_664.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__6&file=kf_01_665.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__6&file=kf_02_666.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__6&file=kf_03_667.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The person is seen browsing clothing racks and holding items near a bag, but there is no clear visual evidence of concealing unpaid merchandise into a bag, pocket, or clothing. The L1 qty_spike event is a soft hint and not sufficient for a concealment determination.","latency_ms":1461.0},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across the sequence of frames, the customer in the turquoise shirt is manipulating clothing from the rack while their personal bag is positioned at their side, with visual evidence of movement that suggests placing an item into the bag, consistent with hiding unpaid merchandise. The L1 qty_spike event aligns with this observed multi-frame behavior of concealing an item.","latency_ms":3151.3},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is browsing clothing racks, standing in front of a rack and appearing to examine items. There is no visual evidence of concealment (e.g., putting items into bag/pocket/clothes) or hiding behavior across frames. The L1 event 'qty_spike' with 'handheld_peak>=2' may indicate brief handling but is consistent with normal shopping (e.g., picking up multiple items to compare), not theft. No intent to steal is visible.","latency_ms":3486.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen browsing through clothing items on the rack, picking up and examining garments. There is no visible concealment of merchandise into a bag, pocket, or under clothes across the frames. The behavior aligns with normal shopping activity.","latency_ms":1982.4}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_71__qty_spike__15","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"rationale":"The frames show a shopper browsing clothing racks with a shoulder bag; no visible concealment into bag, pockets, or clothing is evident across the sequence. The L1 qty_spike is a soft hint only and lacks matching visual concealment evidence.","latency_ms":1122.2,"agreement_hint":"miss_pos","center_ts":665.9666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__qty_spike__15&file=kf_00_664.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__qty_spike__15&file=kf_01_665.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__qty_spike__15&file=kf_02_666.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__qty_spike__15&file=kf_03_667.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a shopper browsing clothing racks with a shoulder bag; no visible concealment into bag, pockets, or clothing is evident across the sequence. The L1 qty_spike is a soft hint only and lacks matching visual concealment evidence.","latency_ms":1122.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the customer uses their open hand to move clothing on the rack while their large shoulder bag is positioned at their side, with visual evidence of the hand moving toward the bag area consistent with hiding an unpaid item; the L1 qty_spike event provides supporting context for potential concealment, matching multi-frame behavior of hiding merchandise in a personal bag.","latency_ms":3954.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is browsing clothing racks, standing in front of merchandise, and appears to be examining items. There is no visual evidence of concealment (e.g., putting items into bag/pocket/clothes) or hiding behavior across the frames. The L1 event 'qty_spike' with 'handheld_peak>=2' may indicate brief handling but does not confirm theft without visible concealment. Since the person remains in the open, interacting with items normally (e.g., looking, possibly touching), this falls under normal shopping behavior.","latency_ms":3364.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is seen browsing through clothing items on the rack, picking up and examining garments. There is no visible concealment of merchandise into a bag, pocket, or under clothes. The behavior appears consistent with normal shopping activity.","latency_ms":1965.9}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_87__7","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"rationale":"The person is seen browsing and handling clothing on racks without any visible concealment into a bag, pocket, or clothing. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1384.0,"agreement_hint":"miss_pos","center_ts":810.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__7&file=kf_00_809.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__7&file=kf_01_810.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__7&file=kf_02_810.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__7&file=kf_03_811.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The person is seen browsing and handling clothing on racks without any visible concealment into a bag, pocket, or clothing. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1384.0},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across the sequence of frames, the customer is observed interacting with clothing items near the rack, moving toward her patterned bag, and positioning items in a manner consistent with hiding unpaid merchandise in her bag, which aligns with multi-frame behavior indicating concealment of products.","latency_ms":3572.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#87) is seen repeatedly interacting with clothing items in a manner suggesting concealment: she bends down near the floor, reaches into a lower rack area where items are less visible, and appears to manipulate items while partially obscured by her body and bag. Her posture and actions—especially the repeated bending and reaching into low areas without placing items in a visible cart or basket—align with typical shoplifting behavior of hiding merchandise on the person. The L1 event 'qty_spike' and 'taken_proxy>=2' support this, but the visual evidence of concealment (e.g., hiding items under clothes or in bag) is consistent across frames. No clear checkout or return to shelf is observed.","latency_ms":3232.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen picking up a red garment and placing it into her bag, which indicates an intent to conceal unpaid merchandise. This behavior aligns with the 'conceal_unpaid' label as she actively hides the item from view.","latency_ms":1893.5}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_87__qty_spike__17","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"rationale":"The person is seen browsing and handling clothing on racks without any visible concealment into a bag, pocket, or clothing. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1491.5,"agreement_hint":"miss_pos","center_ts":810.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__qty_spike__17&file=kf_00_809.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__qty_spike__17&file=kf_01_810.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__qty_spike__17&file=kf_02_810.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__qty_spike__17&file=kf_03_811.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The person is seen browsing and handling clothing on racks without any visible concealment into a bag, pocket, or clothing. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1491.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across the sequence of frames, the customer is observed taking a red garment from the clothing rack and moving it toward her large patterned bag, consistent with hiding an unpaid product in her bag. The L1 qty_spike event aligns with the multi-frame action of taking an item to conceal it, matching the visual evidence of hiding merchandise.","latency_ms":3449.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#87) is seen repeatedly interacting with merchandise in a way that suggests concealment: she bends down near the floor, reaches into a low clothing rack, and appears to retrieve items without placing them in a visible basket or cart. Her body posture and hand movements—particularly reaching under or behind racks while keeping her back partially turned—indicate an intent to hide items on her person (e.g., in her bag or clothing). The L1 event 'qty_spike' with 'taken_proxy>=2' and 'take_burst>=2/25s' supports rapid, repeated handling of items, consistent with shoplifting behavior rather than normal browsing. No payment or checkout is observed, and no items are visibly placed in a cart. This aligns with 'conceal_unpaid' as defined: hiding items on the body via multi-frame behavior.","latency_ms":5520.3},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen picking up a red garment and placing it into their bag, which indicates an intent to conceal unpaid merchandise. This behavior aligns with shoplifting intent across multiple frames.","latency_ms":1757.9}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_8__4","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.85,"rationale":"The person is seen holding and examining clothing items on hangers in a retail store, with no visible concealment into a bag, pocket, or clothing. The behavior is consistent with normal shopping and browsing.","latency_ms":1219.1,"agreement_hint":"miss_pos","center_ts":170.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__4&file=kf_00_169.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__4&file=kf_01_170.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__4&file=kf_02_170.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__4&file=kf_03_171.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.85,"agreement_hint":"miss_pos","rationale":"The person is seen holding and examining clothing items on hangers in a retail store, with no visible concealment into a bag, pocket, or clothing. The behavior is consistent with normal shopping and browsing.","latency_ms":1219.1},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is picking up, holding, and examining a red garment from a clothing rack, which is normal shopping behavior with no visible concealment of unpaid merchandise.","latency_ms":2701.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing and handling clothing items on a rack, selecting and examining them in a typical shopping manner. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothes) or intent to steal — the actions are consistent with normal shopping behavior (picking up, holding, inspecting, and likely returning or placing in cart, though cart not visible). L1 event 'qty_spike' alone is insufficient without visual confirmation of concealment; here, the person’s actions remain transparent and non-suspicious.","latency_ms":3321.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is examining a red garment by holding it up and looking at it, consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or under clothing, and the L1 event 'qty_spike' does not appear to be supported by clear visual evidence of intent to steal.","latency_ms":2522.4}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_8__qty_spike__9","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.85,"rationale":"The person is seen holding and examining clothing items on hangers in a retail setting, with no visible concealment into a bag, pocket, or clothing. The behavior is consistent with normal shopping and browsing.","latency_ms":1284.2,"agreement_hint":"miss_pos","center_ts":170.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__qty_spike__9&file=kf_00_169.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__qty_spike__9&file=kf_01_170.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__qty_spike__9&file=kf_02_170.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__qty_spike__9&file=kf_03_171.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.85,"agreement_hint":"miss_pos","rationale":"The person is seen holding and examining clothing items on hangers in a retail setting, with no visible concealment into a bag, pocket, or clothing. The behavior is consistent with normal shopping and browsing.","latency_ms":1284.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is only picking up, holding, and examining a red garment from a clothing rack across the provided frames, with no action of concealing the item into a bag, pocket, or under clothes. The L1 qty_spike event is a soft hint without matching concealment visual evidence, so normal shopping behavior is confirmed.","latency_ms":3124.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing and handling clothing items on a rack, selecting and examining them in a typical shopping manner. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothes) or intent to steal — the actions are consistent with normal retail browsing behavior. The L1 event 'qty_spike' may reflect multiple items being handled quickly but does not override the clear visual context of examination and selection without hiding.","latency_ms":2488.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is picking up and examining a red garment from the rack, which is consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or under clothing, and no multi-frame intent to hide the item is evident.","latency_ms":1820.4}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting041_x264__C_11__0","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"rationale":"The frames show customers browsing and moving through the store; no clear concealment into bag, pocket, or clothing is visible across the sequence.","latency_ms":1150.9,"agreement_hint":"miss_pos","center_ts":137.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__0&file=kf_00_136.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__0&file=kf_01_137.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__0&file=kf_02_137.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__0&file=kf_03_138.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and moving through the store; no clear concealment into bag, pocket, or clothing is visible across the sequence.","latency_ms":1150.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Multi-frame behavior shows the individual in the pink outfit moving items toward their body, with actions consistent with hiding unpaid merchandise, supported by the L1 qty_spike event indicating an unusual number of items were taken from the shelf area.","latency_ms":3187.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person in maroon (C#11) is seen moving toward the exit while holding an item close to their body, and then appears to duck or turn quickly near the doorway—consistent with concealing merchandise under clothing or into a bag. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, and the multi-frame behavior shows intent to hide rather than return or pay. No visible checkout or return occurs.","latency_ms":2428.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are at a checkout counter, with one person appearing to pay or complete a transaction while the other waits nearby. There is no visible concealment of merchandise into bags, pockets, or clothing, and their behavior aligns with typical checkout activity.","latency_ms":1699.8}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting041_x264__C_11__qty_spike__4","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"rationale":"The frames show customers browsing and moving through the store; no clear concealment into bag, pocket, or clothing is visible across the sequence. The L1 qty_spike is a soft hint only and lacks matching visual evidence of hiding merchandise.","latency_ms":1958.9,"agreement_hint":"miss_pos","center_ts":137.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__qty_spike__4&file=kf_00_136.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__qty_spike__4&file=kf_01_137.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__qty_spike__4&file=kf_02_137.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__qty_spike__4&file=kf_03_138.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and moving through the store; no clear concealment into bag, pocket, or clothing is visible across the sequence. The L1 qty_spike is a soft hint only and lacks matching visual evidence of hiding merchandise.","latency_ms":1958.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Multi-frame behavior shows the customer in the pink dress moving items toward her body, with actions consistent with hiding unpaid merchandise, supported by the L1 qty_spike event indicating a quantity change that aligns with concealment intent across the sequence of frames.","latency_ms":3784.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person in maroon (C#11) is seen moving toward the exit while holding an item close to their body, and then appears to duck or turn quickly near the doorway—consistent with concealing merchandise under clothing or into a bag. The L1 event 'qty_spike' with multiple takes and handheld peak supports this intent, and no payment or return action is observed. The behavior across frames shows clear concealment intent rather than browsing or checkout.","latency_ms":2752.3},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are at a checkout counter, with one person appearing to be in the process of paying or handing over items. There is no visible concealment of merchandise into bags, pockets, or under clothing. The behavior aligns with normal checkout activity.","latency_ms":1687.7}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting041_x264__C_13__2","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"rationale":"The frames show two individuals standing at a counter with visible merchandise; no concealment into bags, pockets, or clothing is evident. The L1 qty_spike is a soft hint only and lacks visual confirmation of hiding behavior.","latency_ms":1712.7,"agreement_hint":"miss_pos","center_ts":391.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__2&file=kf_00_390.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__2&file=kf_01_390.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__2&file=kf_02_391.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__2&file=kf_03_392.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show two individuals standing at a counter with visible merchandise; no concealment into bags, pockets, or clothing is evident. The L1 qty_spike is a soft hint only and lacks visual confirmation of hiding behavior.","latency_ms":1712.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is holding and examining a product in a normal shopping manner, with no visible concealment into bags, pockets, or under clothing across the sequence of frames. The L1 qty_spike event is a soft hint without matching visual evidence of concealment.","latency_ms":2733.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#13) is seen interacting with the counter while another person stands nearby. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, but more importantly, the customer’s posture—bending slightly, hands near the waist/counter area, and the presence of a white bag on the counter—combined with the context of the store layout and lack of visible payment, strongly indicates concealment of unpaid merchandise. No clear checkout or return action is observed; instead, the behavior aligns with shoplifting intent where items are hidden on the body or in bags without payment. The multi-frame sequence shows no item being placed into a cart or basket, nor any visible payment action.","latency_ms":3265.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is at the checkout counter, interacting with the cashier and handling products in a manner consistent with paying for items. There is no visible concealment of merchandise into bags, pockets, or under clothing.","latency_ms":1766.5}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting041_x264__C_13__qty_spike__7","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"rationale":"The frames show two individuals standing at a counter with visible merchandise; no concealment into bags, pockets, or clothing is evident. The L1 qty_spike is a soft proxy and lacks visual confirmation of hiding behavior.","latency_ms":1395.3,"agreement_hint":"miss_pos","center_ts":391.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__qty_spike__7&file=kf_00_390.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__qty_spike__7&file=kf_01_390.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__qty_spike__7&file=kf_02_391.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__qty_spike__7&file=kf_03_392.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show two individuals standing at a counter with visible merchandise; no concealment into bags, pockets, or clothing is evident. The L1 qty_spike is a soft proxy and lacks visual confirmation of hiding behavior.","latency_ms":1395.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is holding and examining a product over the counter, consistent with normal shopping behavior of inspecting merchandise, with no visual evidence of concealing unpaid items into a bag, pocket, or under clothes.","latency_ms":2677.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#13) is seen interacting with the counter while another person stands nearby. The L1 event 'qty_spike' and high 'handheld_peak' suggest multiple items were handled quickly. In the sequence, the customer’s hands are near the counter surface, and there is a white bag or item being held close to the body—consistent with concealing merchandise under clothing or into a bag. No payment is visible, and the behavior aligns with shoplifting intent: rapid handling of multiple items without placing them in a cart or basket, followed by potential concealment. The presence of multiple items on the counter and the customer’s posture indicate an attempt to hide goods rather than normal browsing.","latency_ms":3449.3},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is at the checkout counter, interacting with the cashier and handling products in a manner consistent with paying for items. There is no evidence of concealment or hiding unpaid merchandise.","latency_ms":2899.1}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting041_x264__C_7__1","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"rationale":"The frames show a person holding a white bag and standing near a counter with items, but there is no clear visual evidence of concealing unpaid merchandise into a bag, pocket, or clothing. The behavior appears consistent with normal shopping or carrying a personal bag.","latency_ms":1434.9,"agreement_hint":"miss_pos","center_ts":173.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__1&file=kf_00_172.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__1&file=kf_01_173.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__1&file=kf_02_173.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__1&file=kf_03_174.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a person holding a white bag and standing near a counter with items, but there is no clear visual evidence of concealing unpaid merchandise into a bag, pocket, or clothing. The behavior appears consistent with normal shopping or carrying a personal bag.","latency_ms":1434.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the maroon top is seen moving items toward a white bag across consecutive frames, with actions consistent with hiding unpaid merchandise in the bag, matching the definition of concealment of unpaid items.","latency_ms":2300.3},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#7) is seen holding a white bag and then appears to place an item into it while standing near the counter. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, and the behavior of placing something into the bag without proceeding to checkout indicates concealment intent. The person’s posture and movement toward the bag, combined with the context of being near the counter but not paying, support shoplifting intent. No clear payment or return action is observed.","latency_ms":2280.3},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the maroon shirt is seen placing an item into their bag, which is a clear act of concealment. This behavior aligns with shoplifting intent as the item is not visibly placed into a shopping cart or basket for checkout.","latency_ms":2273.1}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting041_x264__C_7__qty_spike__5","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"rationale":"The frames show a person holding a white bag and interacting with merchandise at a counter, but there is no clear visual evidence of concealing unpaid items into pockets, clothing, or a personal bag. The behavior appears consistent with normal shopping or browsing.","latency_ms":1362.8,"agreement_hint":"miss_pos","center_ts":173.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__qty_spike__5&file=kf_00_172.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__qty_spike__5&file=kf_01_173.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__qty_spike__5&file=kf_02_173.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__qty_spike__5&file=kf_03_174.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a person holding a white bag and interacting with merchandise at a counter, but there is no clear visual evidence of concealing unpaid items into pockets, clothing, or a personal bag. The behavior appears consistent with normal shopping or browsing.","latency_ms":1362.8},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the individual in the maroon top is seen moving items toward their white bag, with actions consistent with hiding unpaid merchandise into the bag rather than normal shopping activity. The L1 qty_spike event aligns with this observed behavior of transferring items to a bag without visible checkout activity.","latency_ms":3093.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#7) is seen holding a white bag and repeatedly reaching toward the counter area while another person stands nearby. The L1 event 'qty_spike' with 'taken_proxy>=2' suggests multiple items were taken, and the behavior of lingering near the counter without placing items in a cart or proceeding to checkout indicates intent to conceal unpaid merchandise. The white bag appears to be used for hiding items, consistent with concealment behavior across frames.","latency_ms":3008.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the maroon top is seen placing an item into their bag, which is a clear act of concealment. This behavior aligns with shoplifting intent as they attempt to hide unpaid merchandise.","latency_ms":1617.9}]}],"keep_ok":[{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting012_x264__C_14__conceal__7","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show the person in a position consistent with hiding merchandise near the waist area while browsing the display.","latency_ms":1548.7,"agreement_hint":"keep_ok","center_ts":562.7666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_14__conceal__7&file=kf_00_561.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_14__conceal__7&file=kf_01_562.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_14__conceal__7&file=kf_02_563.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_14__conceal__7&file=kf_03_563.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show the person in a position consistent with hiding merchandise near the waist area while browsing the display.","latency_ms":1548.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.85,"agreement_hint":"miss_pos","rationale":"The person in the white shirt is handling and examining fabric products on the store table, which is normal shopping behavior consistent with browsing merchandise, with no visual evidence of concealing unpaid items into a bag, pocket, or under clothes. The L1 conceal event is a soft hint that is not supported by clear visual evidence of hiding merchandise.","latency_ms":3134.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (1.0) and high dwell ratio (0.833), indicates the customer likely concealed an item in their pocket or waist area. The person’s posture—bending slightly, hand near hip/low torso—and the absence of visible payment or cart placement across multiple frames support concealment intent rather than browsing or checkout. No clear visual of the item being hidden is seen in these frames, but the multi-frame behavioral pattern and L1 metadata strongly suggest unpaid concealment.","latency_ms":3048.4},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the foreground is seen placing an item into their pocket, consistent with concealment behavior. The L1 event 'conceal' further supports this inference, as it aligns with the visual evidence of hiding unpaid merchandise.","latency_ms":1749.9}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting012_x264__C_20__conceal__4","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"rationale":"The L1 event indicates a concealment action at the hip/pocket with a model score of 0.85, and the keyframes show the person in an orange top interacting with merchandise at a display table. While the exact concealment is not perfectly clear in the low-resolution frames, the multi-frame behavior and L1 evidence suggest the person is hiding unpaid merchandise on their body.","latency_ms":1494.8,"agreement_hint":"keep_ok","center_ts":417.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_20__conceal__4&file=kf_00_416.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_20__conceal__4&file=kf_01_416.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_20__conceal__4&file=kf_02_417.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_20__conceal__4&file=kf_03_418.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a model score of 0.85, and the keyframes show the person in an orange top interacting with merchandise at a display table. While the exact concealment is not perfectly clear in the low-resolution frames, the multi-frame behavior and L1 evidence suggest the person is hiding unpaid merchandise on their body.","latency_ms":1494.8},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the yellow top interacts with merchandise across multiple frames, with L1 event indicating concealment in a hip pocket; multi-frame behavior shows handling of goods consistent with hiding unpaid items, matching the conceal_unpaid criteria.","latency_ms":3008.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after interaction) and high model score (0.85), strongly indicates the person is concealing merchandise in their pocket or clothing. The multi-frame behavior shows them handling fabric items near the counter, then moving with a posture suggesting hidden placement—consistent with shoplifting intent. No payment or visible return to shelf occurs.","latency_ms":2698.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing a large, patterned fabric item into their bag or pocket area near the checkout counter, consistent with concealment behavior. The surrounding context of other shoppers and staff does not contradict this intent.","latency_ms":2191.8}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting012_x264__C_21__conceal__6","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"rationale":"The person in the yellow and black top is seen handling merchandise at the table and then moving her hands toward her hip/pocket area, consistent with the L1 conceal event (subtype pocket, zone hip). The multi-frame sequence shows her interacting with items and then concealing them on her body rather than carrying them visibly or placing them in a cart.","latency_ms":1443.2,"agreement_hint":"keep_ok","center_ts":489.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_21__conceal__6&file=kf_00_488.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_21__conceal__6&file=kf_01_488.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_21__conceal__6&file=kf_02_489.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_21__conceal__6&file=kf_03_490.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the yellow and black top is seen handling merchandise at the table and then moving her hands toward her hip/pocket area, consistent with the L1 conceal event (subtype pocket, zone hip). The multi-frame sequence shows her interacting with items and then concealing them on her body rather than carrying them visibly or placing them in a cart.","latency_ms":1443.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment event in the hip pocket zone, with supporting trajectory evidence, and multi-frame behavior aligns with hiding an unpaid item on the person’s body, matching the conceal_unpaid label criteria.","latency_ms":3062.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappearance (item vanishes from view after interaction) and high model score (0.85), strongly suggests the person is concealing an item in their pocket or clothing. The multi-frame behavior shows the individual standing near a large fabric display, interacting closely with it, and maintaining a posture consistent with hiding something at the hip. No payment or visible placement into a cart occurs; no clear return to shelf. This aligns with 'conceal_unpaid' per rules: concealment into pocket/clothes inferred across frames, not just a single grab.","latency_ms":3355.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is examining a large piece of fabric on a table, which is consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or under clothing, and the actions across the frames suggest she is inspecting the item rather than attempting to steal it.","latency_ms":2522.6}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting012_x264__C_3__conceal__1","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"rationale":"The person in the yellow top is seen handling merchandise at the display table and then making movements consistent with tucking or hiding an item under their clothing, matching the L1 conceal event subtype 'under_clothes'.","latency_ms":1282.9,"agreement_hint":"keep_ok","center_ts":174.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_3__conceal__1&file=kf_00_173.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_3__conceal__1&file=kf_01_174.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_3__conceal__1&file=kf_02_174.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_3__conceal__1&file=kf_03_175.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the yellow top is seen handling merchandise at the display table and then making movements consistent with tucking or hiding an item under their clothing, matching the L1 conceal event subtype 'under_clothes'.","latency_ms":1282.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer is observed manipulating a large golden fabric item, tucking it under their clothing (consistent with the L1 event subtype 'under_clothes') across consecutive frames, showing clear intent to conceal an unpaid product rather than normal shopping activity.","latency_ms":3036.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 1.0) indicates the person likely concealed an item under their clothes. The person is standing near the counter with a large fabric item being handled by another person, but the keyframe sequence shows no visible payment or return to shelf; instead, the concealment pattern aligns with shoplifting intent. No clear visual of the item being hidden in this specific frame set, but the L1 context strongly supports concealment intent across frames.","latency_ms":3073.4},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is standing at a checkout counter with a large item spread out on the counter, appearing to be in the process of paying or completing a transaction. There is no evidence of concealment or hiding of merchandise.","latency_ms":2250.0}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting012_x264__C_5__conceal__0","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"rationale":"The person in the yellow top is seen seated and repeatedly interacting with an item near their lap/waist area, with the L1 event indicating concealment under clothes. Across the frames, the item is no longer visible on the table or in hand, suggesting it was hidden on the body.","latency_ms":1400.6,"agreement_hint":"keep_ok","center_ts":101.96666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_5__conceal__0&file=kf_00_100.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_5__conceal__0&file=kf_01_101.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_5__conceal__0&file=kf_02_102.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_5__conceal__0&file=kf_03_103.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the yellow top is seen seated and repeatedly interacting with an item near their lap/waist area, with the L1 event indicating concealment under clothes. Across the frames, the item is no longer visible on the table or in hand, suggesting it was hidden on the body.","latency_ms":1400.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the person in the white shirt moves a yellow product from the counter and conceals it under their clothing (pants/waist area), matching the L1 conceal event subtype of under_clothes, with multi-frame behavior showing the product being hidden rather than normal shopping or checkout.","latency_ms":3269.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'under_clothes', and the visual sequence shows the customer (C#5, P#5) sitting at the counter while the staff member is distracted; the customer's hand is near their waist/hip area where a yellow item (likely the concealed product) is later seen in the staff member's hand. The trajectory evidence indicates 'below_threshold' and 'co_disappear', consistent with hiding an item under clothes. No payment occurs, and the item is not placed in a visible cart or basket. This meets the criteria for 'conceal_unpaid' as it involves hiding merchandise on the body without intent to pay.","latency_ms":4061.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is seated at a table in what appears to be a restaurant or dining area, interacting with another person who seems to be an employee or server. There is no evidence of concealment, hiding, or shoplifting intent. The behavior is consistent with normal dining and checkout activities.","latency_ms":2111.1}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting012_x264__C_6__conceal__2","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"rationale":"The person in the yellow top is seen handling merchandise at the display table and then moving their hands toward their hip/pocket area in a manner consistent with concealing an item, matching the L1 conceal event with pocket/hip subtype.","latency_ms":1571.9,"agreement_hint":"keep_ok","center_ts":199.16666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_6__conceal__2&file=kf_00_198.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_6__conceal__2&file=kf_01_198.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_6__conceal__2&file=kf_02_199.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_6__conceal__2&file=kf_03_200.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the yellow top is seen handling merchandise at the display table and then moving their hands toward their hip/pocket area in a manner consistent with concealing an item, matching the L1 conceal event with pocket/hip subtype.","latency_ms":1571.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer (C#6) is observed over multiple frames moving an item toward their hip pocket, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior showing the item being hidden in their clothing pocket.","latency_ms":3468.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after interaction) and high model score (0.85), strongly indicates the customer is concealing an item in their pocket or clothing. The person's posture and hand movements near the hip area across frames support this, especially since they are not placing the item in a visible cart or basket. No payment is observed, and the context suggests intent to steal rather than browse.","latency_ms":3213.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is standing at a checkout counter with merchandise laid out on the table, appearing to be in the process of paying or completing a transaction. There is no visible concealment of items into bags, pockets, or under clothing, and the behavior aligns with normal checkout procedures.","latency_ms":2099.4}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting014_x264__C_1__conceal__1","clip_id":"ucf_theft__Shoplifting014_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"rationale":"The person in the orange outfit is seen moving through the store and appears to be concealing an item under her clothing or in a bag, consistent with the L1 conceal event indicating a pocket/hip concealment.","latency_ms":1336.9,"agreement_hint":"keep_ok","center_ts":754.7666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting014_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_1__conceal__1&file=kf_00_753.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_1__conceal__1&file=kf_01_754.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_1__conceal__1&file=kf_02_755.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_1__conceal__1&file=kf_03_755.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the orange outfit is seen moving through the store and appears to be concealing an item under her clothing or in a bag, consistent with the L1 conceal event indicating a pocket/hip concealment.","latency_ms":1336.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the patterned top and red pants is observed moving an item from the shelf area toward their hip pocket across consecutive frames, matching the L1 conceal event subtype of pocket concealment, with visual evidence of hiding an unpaid product on their person.","latency_ms":2729.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' and zone 'hip', and the visual sequence shows the person (in red/orange attire) turning away from the shelf, bringing their hands toward their hip area while holding a dark item, consistent with pocketing or concealing merchandise under clothing. The multi-frame behavior supports concealment intent rather than browsing or checkout. No payment is observed, and the risk score, though low, aligns with the visual evidence of hiding an item on the body.","latency_ms":2899.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their pocket or waistband area, which is consistent with concealment behavior. This action, combined with the L1 event 'conceal' and the visual evidence of the item being hidden on the body, strongly suggests intent to steal unpaid merchandise.","latency_ms":1722.4}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting014_x264__C_4__conceal__0","clip_id":"ucf_theft__Shoplifting014_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The person in red is seen handling merchandise near a rack and then turning away while adjusting her clothing, consistent with concealing an item under her clothes. The L1 event 'conceal' with subtype 'under_clothes' and high model score supports this, and the multi-frame sequence shows a clear hiding action rather than normal browsing.","latency_ms":1563.0,"agreement_hint":"keep_ok","center_ts":87.96666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting014_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_4__conceal__0&file=kf_00_86.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_4__conceal__0&file=kf_01_87.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_4__conceal__0&file=kf_02_88.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_4__conceal__0&file=kf_03_89.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The person in red is seen handling merchandise near a rack and then turning away while adjusting her clothing, consistent with concealing an item under her clothes. The L1 event 'conceal' with subtype 'under_clothes' and high model score supports this, and the multi-frame sequence shows a clear hiding action rather than normal browsing.","latency_ms":1563.0},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer interacts with clothing on a rack, and multi-frame behavior shows an action consistent with hiding an item under her clothing (matching the L1 conceal event subtype of under_clothes), with no visible payment action or return to shelf for the item, indicating concealment of unpaid merchandise.","latency_ms":3259.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 0.6667) indicates the person likely concealed an item under clothing. In the frames, the person is seen adjusting her headscarf/face area while holding a garment, which aligns with hiding an item under clothes — a classic shoplifting tactic. No payment or return to shelf is observed, and the behavior is inconsistent with normal browsing.","latency_ms":2715.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item under their clothing, which is consistent with concealment behavior. The L1 event 'conceal' further supports this inference.","latency_ms":2596.6}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting014_x264__C_77__conceal__2","clip_id":"ucf_theft__Shoplifting014_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"rationale":"The person is seen holding a dark item and moving it toward her hip/pocket area while turning away from the camera, consistent with the L1 conceal event indicating a pocket concealment at the hip. The multi-frame sequence shows the item disappearing from view near her body, suggesting unpaid concealment rather than normal browsing.","latency_ms":1657.2,"agreement_hint":"keep_ok","center_ts":1947.9666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting014_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_77__conceal__2&file=kf_00_1946.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_77__conceal__2&file=kf_01_1947.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_77__conceal__2&file=kf_02_1948.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_77__conceal__2&file=kf_03_1949.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person is seen holding a dark item and moving it toward her hip/pocket area while turning away from the camera, consistent with the L1 conceal event indicating a pocket concealment at the hip. The multi-frame sequence shows the item disappearing from view near her body, suggesting unpaid concealment rather than normal browsing.","latency_ms":1657.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Multi-frame visual evidence shows the customer moving an item toward their hip pocket (consistent with the L1 conceal event subtype of pocket), hiding the item from view as part of a shoplifting-related concealment action.","latency_ms":2608.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with the trajectory evidence showing co-disappearance (item vanishes from visible hand into hip area) and high dwell ratio (0.8), strongly indicates concealment. The person’s posture and movement—reaching toward the hip while holding an item in the other hand, then turning away without placing it in a cart or basket—supports intent to hide unpaid merchandise. No payment or checkout is observed.","latency_ms":2693.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their pocket, which is consistent with concealment behavior. The L1 event 'conceal' further supports this inference.","latency_ms":1917.0}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting030_x264__C_1__conceal__1","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show a person in the foreground with a bag and hand near the hip area, consistent with hiding merchandise. While the visual evidence is not perfectly clear, the combination of the L1 conceal event and the observed posture supports concealment of unpaid merchandise.","latency_ms":1447.7,"agreement_hint":"keep_ok","center_ts":92.76666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__conceal__1&file=kf_00_91.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__conceal__1&file=kf_01_92.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__conceal__1&file=kf_02_93.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__conceal__1&file=kf_03_93.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show a person in the foreground with a bag and hand near the hip area, consistent with hiding merchandise. While the visual evidence is not perfectly clear, the combination of the L1 conceal event and the observed posture supports concealment of unpaid merchandise.","latency_ms":1447.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#1) is observed moving an item toward their hip pocket across sequential frames, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior indicating hiding an unpaid product rather than normal shopping activity.","latency_ms":3199.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view) and high model score (0.85), strongly indicates the person is concealing an item in their pocket or clothing. The multi-frame behavior shows them standing near the counter while making a motion consistent with hiding an item, and no payment is observed. This aligns with 'conceal_unpaid' per rules: concealment into body/pocket is confirmed by both visual context and L1 metadata.","latency_ms":3152.2},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item into their pocket, which is a clear act of concealment. This behavior aligns with the 'conceal' event type and indicates an intent to steal unpaid merchandise.","latency_ms":1637.5}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting030_x264__C_20__conceal__6","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show a person in a red top and dark pants near a display counter with a hand-to-hip motion consistent with hiding merchandise. While the visual evidence is not perfectly clear, the multi-frame behavior and L1 context support concealment.","latency_ms":1353.1,"agreement_hint":"keep_ok","center_ts":313.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_20__conceal__6&file=kf_00_312.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_20__conceal__6&file=kf_01_313.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_20__conceal__6&file=kf_02_313.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_20__conceal__6&file=kf_03_314.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show a person in a red top and dark pants near a display counter with a hand-to-hip motion consistent with hiding merchandise. While the visual evidence is not perfectly clear, the multi-frame behavior and L1 context support concealment.","latency_ms":1353.1},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the red shirt performs a sequence of actions consistent with concealing an unpaid item: they bend down near the shelf area, then move their hands toward their hip pocket (matching the L1 event's subtype of pocket concealment), with multi-frame behavior showing the action of hiding an item on their person rather than normal browsing or checkout.","latency_ms":2916.7},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly labels 'conceal' with subtype 'pocket' and zone 'hip', and the trajectory evidence shows high dwell ratio (0.833) and co-disappear (1.0), indicating the item was hidden on the person's body. The multi-frame behavior shows the customer in close proximity to a display, then moving away with no visible payment or cart placement, consistent with concealment intent. No checkout or return is observed.","latency_ms":2164.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their pocket, which is a clear act of concealment. This behavior aligns with the 'conceal_unpaid' label as it indicates an intent to hide merchandise without paying.","latency_ms":1882.9}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting030_x264__C_2__conceal__0","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"rationale":"The person in the red shirt is seen bending down and interacting with merchandise in a manner consistent with concealing items under clothing or in a bag, as indicated by the L1 event subtype 'under_clothes' and the visual evidence of the person's posture and actions across multiple frames.","latency_ms":1312.8,"agreement_hint":"keep_ok","center_ts":16.766666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_2__conceal__0&file=kf_00_15.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_2__conceal__0&file=kf_01_16.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_2__conceal__0&file=kf_02_17.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_2__conceal__0&file=kf_03_17.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the red shirt is seen bending down and interacting with merchandise in a manner consistent with concealing items under clothing or in a bag, as indicated by the L1 event subtype 'under_clothes' and the visual evidence of the person's posture and actions across multiple frames.","latency_ms":1312.8},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the red shirt is holding a product against their torso under their clothing, consistent with multi-frame behavior of concealing an unpaid item, matching the L1 conceal event subtype of under_clothes.","latency_ms":2999.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person (P#2, red top) is crouched near a display counter and appears to be placing an item under their clothing or into a hidden location, consistent with the L1 event 'conceal' and meta subtype 'under_clothes'. The posture, prolonged crouch, and lack of visible payment or return to shelf indicate intent to conceal unpaid merchandise. This matches the definition of 'conceal_unpaid' as hiding items on the body across multiple frames.","latency_ms":2525.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is crouched near the checkout counter, with their hands positioned in a way that suggests they are concealing an item under their clothing or in a hidden location. This behavior aligns with the 'under_clothes' concealment pattern indicated by the L1 event and visual evidence.","latency_ms":2537.9}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_10__conceal__3","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"rationale":"The L1 event indicates a concealment action under clothes, and the multi-frame sequence shows a person in the foreground with a white top and dark hair whose body orientation and hand movements are consistent with hiding an item near the waistband or under clothing while browsing. The concealment is not fully visible due to occlusion, but the behavior aligns with the L1 conceal hint and the trajectory evidence of item disappearance.","latency_ms":1794.2,"agreement_hint":"keep_ok","center_ts":41.56666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__conceal__3&file=kf_00_40.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__conceal__3&file=kf_01_41.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__conceal__3&file=kf_02_41.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__conceal__3&file=kf_03_42.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action under clothes, and the multi-frame sequence shows a person in the foreground with a white top and dark hair whose body orientation and hand movements are consistent with hiding an item near the waistband or under clothing while browsing. The concealment is not fully visible due to occlusion, but the behavior aligns with the L1 conceal hint and the trajectory evidence of item disappearance.","latency_ms":1794.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the white long-sleeve shirt repeatedly manipulates clothing near their torso, with multi-frame behavior showing actions consistent with hiding an item under their clothing, matching the L1 conceal event subtype of under_clothes.","latency_ms":3242.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high trajectory score (0.6678) + co_disappear=1.0 across 6 frames strongly indicates concealment under clothes. The person's posture (bending, hand near waist/hip area) and the context of being in a clothing store support intent to hide merchandise without payment. No visible checkout or return actions occur.","latency_ms":2858.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen picking up and examining clothing items, which is consistent with normal shopping behavior. There is no visible concealment of merchandise into a bag, pocket, or under clothes across the frames.","latency_ms":2072.5}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_29__conceal__5","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"rationale":"The L1 event indicates a concealment action under clothes, and the multi-frame sequence shows a person in the foreground handling merchandise near their waistline, consistent with hiding unpaid items.","latency_ms":1489.6,"agreement_hint":"keep_ok","center_ts":146.76666666666668,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__conceal__5&file=kf_00_145.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__conceal__5&file=kf_01_146.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__conceal__5&file=kf_02_147.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__conceal__5&file=kf_03_147.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action under clothes, and the multi-frame sequence shows a person in the foreground handling merchandise near their waistline, consistent with hiding unpaid items.","latency_ms":1489.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual with dark hair and white top is observed moving a clothing item toward their underclothes (midsection) across sequential frames, consistent with hiding an unpaid product under clothing, matching the L1 conceal event subtype of under_clothes.","latency_ms":2778.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 1.0) indicates the person likely concealed an item under clothing. The person’s posture—bending slightly, hand near waist/hip area, and holding a bag while standing close to others—supports concealment intent. No visual of the item being placed in a bag or pocket is seen, but the multi-frame behavior (dwell, co-disappear, and lack of visible re-emergence) strongly suggests unpaid concealment. This aligns with the rule that only steal/conceal_unpaid when visuals show concealment into bag/pocket/clothes or clear multi-frame hiding intent.","latency_ms":3463.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item under their clothing, which is consistent with concealment behavior. This action aligns with the L1 event 'conceal' and indicates an intent to hide unpaid merchandise.","latency_ms":1618.3}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_3__conceal__13","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the multi-frame sequence shows the person handling merchandise in a manner consistent with hiding it on their body rather than browsing or checking out.","latency_ms":1564.4,"agreement_hint":"keep_ok","center_ts":485.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_3__conceal__13&file=kf_00_484.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_3__conceal__13&file=kf_01_484.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_3__conceal__13&file=kf_02_485.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_3__conceal__13&file=kf_03_486.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the multi-frame sequence shows the person handling merchandise in a manner consistent with hiding it on their body rather than browsing or checking out.","latency_ms":1564.4},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the white top is observed moving a purple garment from a display rack and concealing it under their outer clothing at their hip, consistent with the L1 conceal event subtype of pocket/hip concealment, with multi-frame behavior showing the garment being hidden on their body rather than normal shopping activity.","latency_ms":3162.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' at hip level, and the trajectory analysis shows co-disappearance (item vanishes from view after interaction), dwell ratio of 1.0, and high model score (0.85). The person's behavior across frames shows them interacting with merchandise near the hip area, consistent with hiding an item in a pocket or under clothing, without placing it in a visible cart or basket. This aligns with 'conceal_unpaid' as defined: hiding product on the body with clear intent to avoid payment.","latency_ms":2901.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen picking up a purple garment and placing it into their bag, which aligns with the 'conceal' L1 event indicating intent to hide unpaid merchandise. The behavior across frames shows clear concealment into the bag.","latency_ms":2400.8}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_40__conceal__10","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the multi-frame sequence shows a person in the foreground interacting with merchandise in a manner consistent with hiding an item on their body.","latency_ms":1416.7,"agreement_hint":"keep_ok","center_ts":396.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_40__conceal__10&file=kf_00_395.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_40__conceal__10&file=kf_01_396.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_40__conceal__10&file=kf_02_396.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_40__conceal__10&file=kf_03_397.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the multi-frame sequence shows a person in the foreground interacting with merchandise in a manner consistent with hiding an item on their body.","latency_ms":1416.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#40) is observed over multiple frames moving an item toward their hip pocket (consistent with the L1 conceal event subtype of pocket), with multi-frame behavior showing intent to hide the item on their body rather than browse or checkout.","latency_ms":3646.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after interaction) and high model score (0.85), strongly indicates the person concealed an item in their pocket or clothing. The multi-frame behavior shows them interacting with merchandise near the hip area, consistent with hiding an unpaid item. No visual of payment or return to shelf is observed.","latency_ms":2528.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item into a bag or pocket area near their hip, consistent with concealment behavior. This action aligns with the L1 event 'conceal' and is supported by visual evidence across multiple frames.","latency_ms":2239.8}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_48__conceal__11","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The keyframes show a woman in a white top and blue jeans moving through the store and then reaching toward her waistband/hip area in a manner consistent with concealing an item, matching the L1 conceal event (subtype: pocket, zone: hip). The multi-frame sequence captures the concealment motion rather than mere browsing.","latency_ms":1557.5,"agreement_hint":"keep_ok","center_ts":439.96666666666664,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__conceal__11&file=kf_00_438.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__conceal__11&file=kf_01_439.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__conceal__11&file=kf_02_440.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__conceal__11&file=kf_03_441.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The keyframes show a woman in a white top and blue jeans moving through the store and then reaching toward her waistband/hip area in a manner consistent with concealing an item, matching the L1 conceal event (subtype: pocket, zone: hip). The multi-frame sequence captures the concealment motion rather than mere browsing.","latency_ms":1557.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#48) is observed over multiple frames moving their hand toward their hip pocket (per L1 event subtype: pocket, zone: hip) while handling clothing, consistent with hiding an unpaid item on their person, matching the conceal_unpaid criteria of hiding merchandise in a pocket/on the body.","latency_ms":4239.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with high trajectory score (0.7429) and co-disappear signal (1.0), indicates the person likely concealed an item in their hip/pocket area. The person's body language—hand moving toward the hip area while walking away from the rack—and the context of being in a clothing store support this. No visual evidence shows the item being placed in a bag or returned to a shelf, and the risk score is low but the meta data strongly suggests concealment intent. This aligns with 'conceal_unpaid' as defined: hiding merchandise on the body without payment.","latency_ms":3013.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their front pocket, which is a clear act of concealment. This behavior aligns with the 'conceal_unpaid' label as it indicates an intent to hide merchandise without paying.","latency_ms":2743.8}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_4__conceal__0","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"rationale":"The keyframes show a person in the center of the frame with a dark shoulder bag. Across the sequence, they appear to be interacting with merchandise while their body and bag are positioned in a way that suggests concealing an item, consistent with the L1 conceal event (subtype: pocket, zone: hip). The multi-frame behavior indicates hiding intent rather than normal browsing.","latency_ms":2055.5,"agreement_hint":"keep_ok","center_ts":5.566666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__conceal__0&file=kf_00_4.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__conceal__0&file=kf_01_5.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__conceal__0&file=kf_02_5.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__conceal__0&file=kf_03_6.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The keyframes show a person in the center of the frame with a dark shoulder bag. Across the sequence, they appear to be interacting with merchandise while their body and bag are positioned in a way that suggests concealing an item, consistent with the L1 conceal event (subtype: pocket, zone: hip). The multi-frame behavior indicates hiding intent rather than normal browsing.","latency_ms":2055.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual is observed moving an item toward their hip pocket across sequential frames, consistent with hiding an unpaid item on their person, matching the L1 conceal event subtype of pocket concealment.","latency_ms":2411.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view) and high score (0.6748), indicates the person is hiding an item on their person. The multi-frame behavior shows the individual moving with a bag or item near their hip, consistent with concealment into pocket or under clothing. No payment or return to shelf is observed, supporting unpaid concealment intent.","latency_ms":2614.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their waistband/pocket area, consistent with concealing unpaid merchandise. This behavior aligns with the 'conceal' L1 event and is supported by visual evidence across multiple frames.","latency_ms":1860.6}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_5__conceal__6","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the multi-frame sequence shows a person handling merchandise in a manner consistent with hiding it on their body rather than openly carrying it.","latency_ms":1825.5,"agreement_hint":"keep_ok","center_ts":148.76666666666668,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__conceal__6&file=kf_00_147.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__conceal__6&file=kf_01_148.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__conceal__6&file=kf_02_149.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__conceal__6&file=kf_03_149.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the multi-frame sequence shows a person handling merchandise in a manner consistent with hiding it on their body rather than openly carrying it.","latency_ms":1825.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#5) is holding multiple garments and moving toward their hip pocket (per L1 event subtype 'pocket'), with multi-frame behavior showing the action of positioning items to conceal them on their person, consistent with hiding unpaid merchandise.","latency_ms":3190.3},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' at hip zone, and the trajectory analysis shows co-disappear (item vanishes from view after interaction) with high score (0.65) and 100% dwell ratio. The person's posture and hand motion toward the hip area across multiple frames suggest hiding an item in a pocket or waistband, consistent with concealment intent. No payment or return to shelf is observed.","latency_ms":2657.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is seen picking up and examining clothing items, placing them into a shopping basket, and interacting with the merchandise in a manner consistent with normal shopping behavior. There is no visible concealment of unpaid items into bags, pockets, or under clothes.","latency_ms":2064.0}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_87__conceal__16","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The person is seen moving through the store and placing an item into a bag/pocket area at the hip, consistent with concealment behavior across multiple frames.","latency_ms":1467.7,"agreement_hint":"keep_ok","center_ts":807.5666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__conceal__16&file=kf_00_806.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__conceal__16&file=kf_01_807.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__conceal__16&file=kf_02_807.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__conceal__16&file=kf_03_808.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The person is seen moving through the store and placing an item into a bag/pocket area at the hip, consistent with concealment behavior across multiple frames.","latency_ms":1467.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Multi-frame visual evidence shows the customer moving an item toward her hip pocket (consistent with the L1 conceal event subtype of pocket), with trajectory and model score supporting hiding an unpaid product on her person rather than normal shopping actions.","latency_ms":3366.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (1.0) and high model score (0.85), indicates the person likely concealed an item in their pocket or waist area. The person's posture and movement near the clothing racks, along with the absence of the item in visible hands or cart, support concealment intent rather than browsing or checkout. No payment is observed, and the risk score is low but not zero, suggesting the act may be subtle but still identifiable as concealment.","latency_ms":2807.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item into her bag, which is consistent with concealment behavior. The L1 event 'conceal' further supports this inference, as it indicates a potential attempt to hide unpaid merchandise.","latency_ms":2311.6}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_8__conceal__2","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"rationale":"The L1 event indicates a conceal action at the hip/pocket with a high model score, and the keyframes show the person in the act of handling merchandise near their body in a manner consistent with concealment. While the visual evidence is not perfectly clear, the combination of the L1 event and the observed behavior supports a concealment determination.","latency_ms":1217.7,"agreement_hint":"keep_ok","center_ts":25.966666666666665,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__conceal__2&file=kf_00_24.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__conceal__2&file=kf_01_25.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__conceal__2&file=kf_02_26.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__conceal__2&file=kf_03_27.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a conceal action at the hip/pocket with a high model score, and the keyframes show the person in the act of handling merchandise near their body in a manner consistent with concealment. While the visual evidence is not perfectly clear, the combination of the L1 event and the observed behavior supports a concealment determination.","latency_ms":1217.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#8) is observed over multiple frames moving an item toward their hip pocket, consistent with the L1 conceal event subtype of pocket concealment, showing multi-frame behavior of hiding an unpaid item on their person.","latency_ms":3069.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view) and high model score (0.85), strongly indicates the person is concealing an item in their pocket or clothing. The multi-frame behavior shows the person holding items while moving toward the hip area, consistent with hiding merchandise without payment. This aligns with the definition of 'conceal_unpaid' — hiding a product on the body — not just browsing.","latency_ms":3059.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen making a deliberate motion to conceal an item into their pocket, consistent with shoplifting behavior. The L1 event 'conceal' further supports this inference.","latency_ms":2068.8}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting041_x264__C_13__conceal__6","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"rationale":"The L1 event indicates a conceal action at the hip/pocket with a model score of 0.85, and the keyframes show a person in a maroon outfit standing near a counter with items, consistent with hiding merchandise on the body.","latency_ms":3158.5,"agreement_hint":"keep_ok","center_ts":360.76666666666665,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__conceal__6&file=kf_00_359.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__conceal__6&file=kf_01_360.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__conceal__6&file=kf_02_361.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__conceal__6&file=kf_03_361.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a conceal action at the hip/pocket with a model score of 0.85, and the keyframes show a person in a maroon outfit standing near a counter with items, consistent with hiding merchandise on the body.","latency_ms":3158.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The woman in the maroon sari is seen moving an item toward her hip pocket across sequential frames, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior showing intent to hide the unpaid item on her person.","latency_ms":2422.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after approach) and high model score (0.85), strongly suggests the person concealed an item in their pocket or clothing. The multi-frame behavior shows the person standing near the counter, then turning away while holding something near their hip area—consistent with hiding merchandise. No payment is observed, and no clear return to shelf or cart placement occurs. This meets the criteria for 'conceal_unpaid' as defined: hiding product on body without visible payment intent.","latency_ms":3111.4},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is standing at a checkout counter with items placed on the counter, indicating they are in the process of paying for their purchases. There is no evidence of concealment or hiding of merchandise.","latency_ms":1692.1}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting041_x264__C_3__conceal__1","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show a person in a pink outfit with a white bag near the hip area, consistent with hiding merchandise. While the visual evidence is not perfectly clear, the multi-frame behavior and L1 hint support concealment.","latency_ms":1554.3,"agreement_hint":"keep_ok","center_ts":24.766666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_3__conceal__1&file=kf_00_23.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_3__conceal__1&file=kf_01_24.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_3__conceal__1&file=kf_02_25.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_3__conceal__1&file=kf_03_25.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show a person in a pink outfit with a white bag near the hip area, consistent with hiding merchandise. While the visual evidence is not perfectly clear, the multi-frame behavior and L1 hint support concealment.","latency_ms":1554.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#3) is observed moving an item toward their hip pocket across sequential frames, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior indicating hiding an unpaid product rather than normal shopping actions.","latency_ms":2842.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (product vanishes from view after interaction) and high model score (0.85), strongly indicates the person concealed an item in their pocket or clothing. The multi-frame behavior shows the individual interacting with shelves, then moving away with no visible payment, supporting concealment intent. No clear checkout or return to shelf is observed.","latency_ms":2451.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen reaching up to a high shelf and appears to be placing an item into her pocket or bag, consistent with concealment behavior. This action aligns with the L1 event 'conceal' and suggests intent to shoplift.","latency_ms":2691.1}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"zenodo_theft__main220_Trim5__C_1__conceal__0","clip_id":"zenodo_theft__main220_Trim5","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"rationale":"The person is seen holding a shopping basket while reaching toward the shelf, and the L1 event indicates a concealment action into a pocket at the hip. The multi-frame sequence shows the person moving through the aisle with the basket, consistent with hiding merchandise rather than normal browsing or checkout.","latency_ms":1373.9,"agreement_hint":"keep_ok","center_ts":1.5666666666666667,"corpus":"zenodo","media_url":null,"playable":false,"keyframe_urls":["/api/path1_case_keyframe?case_id=zenodo_theft__main220_Trim5__C_1__conceal__0&file=kf_00_0.43s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main220_Trim5__C_1__conceal__0&file=kf_01_1.20s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main220_Trim5__C_1__conceal__0&file=kf_02_1.93s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main220_Trim5__C_1__conceal__0&file=kf_03_2.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person is seen holding a shopping basket while reaching toward the shelf, and the L1 event indicates a concealment action into a pocket at the hip. The multi-frame sequence shows the person moving through the aisle with the basket, consistent with hiding merchandise rather than normal browsing or checkout.","latency_ms":1373.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer is seen moving an item from the shelf toward his hip pocket (as indicated by L1 conceal event subtype pocket) across sequential frames, hiding the item from view rather than placing it into the shopping basket, consistent with concealing unpaid merchandise.","latency_ms":2790.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' and zone 'hip', supported by trajectory evidence showing co-disappearance (item vanishes from view after interaction) and high model score (0.85). Visually, the person picks up an item (frame 1), then in subsequent frames (2–4) walks away while holding the basket but also appears to have the item tucked into their pocket or waist area—consistent with concealment behavior. No visible placement into cart/basket or return to shelf occurs; no checkout is seen. This meets the criteria for 'conceal_unpaid' as defined: hiding product on body with multi-frame intent, not just a single grab.","latency_ms":3486.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is holding a shopping basket and examining products on the shelves, consistent with normal shopping behavior. There is no visible concealment of merchandise into a bag, pocket, or under clothing across the frames.","latency_ms":2492.2}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"zenodo_theft__main303_Trim1__C_1__conceal__0","clip_id":"zenodo_theft__main303_Trim1","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The sequence of frames shows the person holding a black backpack open in front of their torso while manipulating an item near the bag's opening, consistent with concealing merchandise. The L1 event subtype 'under_clothes' and model score support this, and the multi-frame behavior indicates hiding intent rather than normal browsing.","latency_ms":1689.5,"agreement_hint":"keep_ok","center_ts":1.5666666666666667,"corpus":"zenodo","media_url":null,"playable":false,"keyframe_urls":["/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__conceal__0&file=kf_00_0.43s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__conceal__0&file=kf_01_1.20s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__conceal__0&file=kf_02_1.93s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__conceal__0&file=kf_03_2.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The sequence of frames shows the person holding a black backpack open in front of their torso while manipulating an item near the bag's opening, consistent with concealing merchandise. The L1 event subtype 'under_clothes' and model score support this, and the multi-frame behavior indicates hiding intent rather than normal browsing.","latency_ms":1689.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the individual adjusts a large black bag while in the snack aisle, with L1 event data indicating concealment under clothes (consistent with hiding unpaid merchandise). The multi-frame behavior shows intentional manipulation of the bag to hide items, matching the conceal_unpaid label criteria.","latency_ms":3569.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) is supported by visual evidence: the person repeatedly reaches toward the right side of their body while holding a large black bag, then later walks forward with the bag held close to their torso—consistent with hiding an item under clothing or in the bag. The trajectory analysis shows co-disappear (1.0) and dwell ratio 1.0, indicating sustained focus on concealment behavior. No visible payment or return actions occur; no items are placed in cart or basket. This aligns with 'conceal_unpaid' per rules: multi-frame intent to hide unpaid merchandise, not just browsing.","latency_ms":3224.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen walking through the aisle while adjusting a backpack, which aligns with the L1 event 'conceal' indicating potential concealment of unpaid merchandise. The behavior suggests an intent to hide items on their person.","latency_ms":2615.3}]}],"n_fp":1,"n_miss":28,"n_keep":25},"doubao_mini":{"fp_kept":[{"kind":"fp_kept","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"hf_normal__Normal__18___C_1__conceal__1","clip_id":"hf_normal__Normal (18)","weak_label":"negative","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Across sequential frames, the individual is observed moving an item from the table into their hip pocket, which matches the L1 conceal event subtype of pocket hiding, consistent with concealing an unpaid product.","latency_ms":4032.1,"agreement_hint":"fp_kept","center_ts":9.566666666666666,"corpus":"hf_tcc","media_url":"/api/media/dataset/hf_tcc_shoplifting__Shoplifting%20-%20MNNIT__Normal__Normal%20%2818%29.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=hf_normal__Normal__18___C_1__conceal__1&file=kf_00_8.43s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__18___C_1__conceal__1&file=kf_01_9.20s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__18___C_1__conceal__1&file=kf_02_9.93s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__18___C_1__conceal__1&file=kf_03_10.63s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.6,"agreement_hint":"fp_suppressed","rationale":"The keyframes show the person standing near a table with boxes and items, but no clear concealment into a bag, pocket, or clothing is visible. The L1 conceal event is a soft hint and lacks matching visual evidence in the provided frames.","latency_ms":1679.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"Across sequential frames, the individual is observed moving an item from the table into their hip pocket, which matches the L1 conceal event subtype of pocket hiding, consistent with concealing an unpaid product.","latency_ms":4032.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with the trajectory evidence showing co-disappearance (1.0) and high dwell ratio (0.8333), indicates the person likely concealed an item in their pocket. The person’s hand is consistently near the hip area across frames, and no visible payment or return action occurs — consistent with concealment rather than browsing or checkout. Although the risk_score is 0.0, the visual behavior and meta data strongly support conceal_unpaid.","latency_ms":2676.2},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"fp_kept","rationale":"The individual is shown with his hand inside his pocket, which aligns with the L1 event 'conceal' indicating potential concealment of an item. The posture and positioning suggest an intent to hide merchandise on his person.","latency_ms":2635.7}]},{"kind":"fp_kept","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"hf_normal__Normal__20___C_1__conceal__0","clip_id":"hf_normal__Normal (20)","weak_label":"negative","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Across sequential frames, the individual is seen moving their hand toward their hip pocket (matching the L1 event's pocket concealment subtype) near items on the table, showing multi-frame behavior of hiding an item in their pants pocket consistent with concealing unpaid merchandise.","latency_ms":3309.1,"agreement_hint":"fp_kept","center_ts":2.7666666666666666,"corpus":"hf_tcc","media_url":"/api/media/dataset/hf_tcc_shoplifting__Shoplifting%20-%20MNNIT__Normal__Normal%20%2820%29.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=hf_normal__Normal__20___C_1__conceal__0&file=kf_00_1.63s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__20___C_1__conceal__0&file=kf_01_2.40s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__20___C_1__conceal__0&file=kf_02_3.13s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__20___C_1__conceal__0&file=kf_03_3.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.6,"agreement_hint":"fp_suppressed","rationale":"The keyframes show the person standing and looking at items on a table, but no concealment into a pocket, bag, or clothing is visible. The L1 conceal event is a soft hint and lacks matching visual evidence in these frames.","latency_ms":1012.4},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"Across sequential frames, the individual is seen moving their hand toward their hip pocket (matching the L1 event's pocket concealment subtype) near items on the table, showing multi-frame behavior of hiding an item in their pants pocket consistent with concealing unpaid merchandise.","latency_ms":3309.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappearance (item vanishes from view after approach) and high model score (0.85), strongly indicates the person is concealing an item in their pocket or clothing. The person's posture—bending slightly, hands near the hip area—and lack of visible payment or return action support this. No visual of the item being placed in a bag or cart; instead, the behavior aligns with hiding merchandise on the body. This matches the definition of 'conceal_unpaid' as hiding product on the body across frames.","latency_ms":3570.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"fp_suppressed","rationale":"The individual is standing in an office environment, looking at items on a desk. There is no visible concealment of merchandise into pockets, bags, or under clothing. The behavior appears consistent with normal browsing or examination of items, and there is no evidence of shoplifting intent.","latency_ms":2138.8}]},{"kind":"fp_kept","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"hf_normal__Normal__22___C_1__conceal__1","clip_id":"hf_normal__Normal (22)","weak_label":"negative","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The person is observed moving an item toward their pants pocket (under clothes) across sequential frames, matching the L1 conceal event subtype of under_clothes, indicating hiding an unpaid item on their body.","latency_ms":3104.6,"agreement_hint":"fp_kept","center_ts":9.966666666666667,"corpus":"hf_tcc","media_url":"/api/media/dataset/hf_tcc_shoplifting__Shoplifting%20-%20MNNIT__Normal__Normal%20%2822%29.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=hf_normal__Normal__22___C_1__conceal__1&file=kf_00_8.83s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__22___C_1__conceal__1&file=kf_01_9.60s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__22___C_1__conceal__1&file=kf_02_10.33s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__22___C_1__conceal__1&file=kf_03_11.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.6,"agreement_hint":"fp_suppressed","rationale":"The frames show a person standing at a table with boxes and items, handling objects near the table surface. There is no visible concealment into a bag, pocket, or under clothes across the frames. The L1 conceal hint is not supported by clear visual evidence, so the behavior cannot be confirmed as shoplifting or concealment.","latency_ms":1757.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The person is observed moving an item toward their pants pocket (under clothes) across sequential frames, matching the L1 conceal event subtype of under_clothes, indicating hiding an unpaid item on their body.","latency_ms":3104.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with the trajectory evidence (co_disappear = 1.0, dwell_ratio = 0.833) indicates the person is hiding an item under their clothes. The person’s posture—bending over a table, reaching toward the wall/box area, and then pulling back while appearing to adjust clothing or pocket—supports concealment behavior. No payment or visible checkout action occurs; no items are placed in a cart or returned to shelves. This matches 'conceal_unpaid' as defined: hiding merchandise on the body across multiple frames, not just a single grab.","latency_ms":3566.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"fp_kept","rationale":"The individual is seen placing an item into his pocket, which constitutes concealment of unpaid merchandise. This action aligns with the 'conceal_unpaid' label as it shows intent to hide the item on his person.","latency_ms":2075.4}]},{"kind":"fp_kept","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"normal__demo_normal_04__C_1__conceal__0","clip_id":"normal__demo_normal_04","weak_label":"negative","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event indicates a conceal event in the hip pocket zone, paired with multi-frame visual context showing the individual adjusting their hoodie near the hip area, consistent with hiding an unpaid item in clothing, matching the conceal_unpaid label criteria.","latency_ms":2453.8,"agreement_hint":"fp_kept","center_ts":4.76,"corpus":"demo","media_url":"/api/media/sample/demo_normal_04.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=normal__demo_normal_04__C_1__conceal__0&file=kf_00_3.64s.jpg","/api/path1_case_keyframe?case_id=normal__demo_normal_04__C_1__conceal__0&file=kf_01_4.40s.jpg","/api/path1_case_keyframe?case_id=normal__demo_normal_04__C_1__conceal__0&file=kf_02_5.12s.jpg","/api/path1_case_keyframe?case_id=normal__demo_normal_04__C_1__conceal__0&file=kf_03_5.88s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.8,"agreement_hint":"fp_suppressed","rationale":"The keyframes show the person walking through the store and holding a small item in his hand while interacting with another person. There is no visual evidence of him concealing merchandise into a pocket, bag, or under clothing. The L1 conceal event is not supported by the visuals, which show the item remaining visible in his hand.","latency_ms":1525.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The L1 event indicates a conceal event in the hip pocket zone, paired with multi-frame visual context showing the individual adjusting their hoodie near the hip area, consistent with hiding an unpaid item in clothing, matching the conceal_unpaid label criteria.","latency_ms":2453.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with high trajectory score (0.65) and co-disappear evidence (1.0), indicates the person likely concealed an item in their pocket. The person’s posture and movement—walking past the counter, turning, and interacting with another individual—suggests they are hiding something rather than simply browsing or paying. No visible payment or checkout action occurs, and no items are placed in a cart or basket. The risk score is low but the visual behavior aligns with concealment intent.","latency_ms":3224.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"fp_suppressed","rationale":"The individual is seen walking through the store, holding an item in his hand without any indication of concealment into a bag, pocket, or under clothing. There is no evidence of hiding behavior across the frames, and the actions appear consistent with normal shopping behavior such as examining or carrying an item.","latency_ms":2353.6}]},{"kind":"fp_kept","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"normal__demo_normal_04__C_2__conceal__1","clip_id":"normal__demo_normal_04","weak_label":"negative","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual (P#2) is observed moving an item toward their hip pocket (per L1 event subtype: pocket, zone: hip) across consecutive frames, with visual evidence of the item being positioned to be hidden in clothing, matching concealment of unpaid merchandise.","latency_ms":3420.1,"agreement_hint":"fp_kept","center_ts":7.64,"corpus":"demo","media_url":"/api/media/sample/demo_normal_04.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=normal__demo_normal_04__C_2__conceal__1&file=kf_00_6.52s.jpg","/api/path1_case_keyframe?case_id=normal__demo_normal_04__C_2__conceal__1&file=kf_01_7.28s.jpg","/api/path1_case_keyframe?case_id=normal__demo_normal_04__C_2__conceal__1&file=kf_02_8.00s.jpg","/api/path1_case_keyframe?case_id=normal__demo_normal_04__C_2__conceal__1&file=kf_03_8.76s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"fp_suppressed","rationale":"The frames show two individuals interacting in a shop area with visible merchandise on tables and shelves. No concealment into pockets, bags, or clothing is visible. The L1 conceal event is not supported by clear visual evidence of hiding merchandise.","latency_ms":1069.1},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The individual (P#2) is observed moving an item toward their hip pocket (per L1 event subtype: pocket, zone: hip) across consecutive frames, with visual evidence of the item being positioned to be hidden in clothing, matching concealment of unpaid merchandise.","latency_ms":3420.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"fp_suppressed","rationale":"The person is standing near the counter and table with products, but no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothes). The L1 event 'conceal' is flagged but contradicted by the visual: the person’s hands are visible and not engaged in hiding actions; they appear to be interacting socially or browsing. No product is seen being taken or hidden across frames. Per rule 1, picking up or holding alone is not steal/conceal_unpaid unless clear concealment occurs — here, no such action is observed. The risk score is 0.0 and weak_label is 'negative', supporting normal behavior.","latency_ms":3521.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"fp_suppressed","rationale":"The individual is seen holding and gesturing with an object, consistent with normal shopping behavior such as examining or discussing a product. There is no visual evidence of concealment into a bag, pocket, or under clothing across the frames.","latency_ms":3089.5}]},{"kind":"fp_kept","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"zenodo_normal__main199_Trim1__C_2__conceal__0","clip_id":"zenodo_normal__main199_Trim1","weak_label":"negative","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event indicates a conceal event under clothes, with multi-frame visual context showing the individual adjusting their waist area (consistent with hiding an item under clothing) as they move through the aisle, matching the subtype of concealment under clothes.","latency_ms":2205.4,"agreement_hint":"fp_kept","center_ts":1.5666666666666667,"corpus":"zenodo","media_url":null,"playable":false,"keyframe_urls":["/api/path1_case_keyframe?case_id=zenodo_normal__main199_Trim1__C_2__conceal__0&file=kf_00_0.43s.jpg","/api/path1_case_keyframe?case_id=zenodo_normal__main199_Trim1__C_2__conceal__0&file=kf_01_1.20s.jpg","/api/path1_case_keyframe?case_id=zenodo_normal__main199_Trim1__C_2__conceal__0&file=kf_02_1.93s.jpg","/api/path1_case_keyframe?case_id=zenodo_normal__main199_Trim1__C_2__conceal__0&file=kf_03_2.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"fp_suppressed","rationale":"The keyframes show individuals walking and browsing in a store aisle; no visible concealment of unpaid merchandise into bags, pockets, or clothing is evident. The L1 conceal event is not supported by clear visual evidence in these frames.","latency_ms":1468.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The L1 event indicates a conceal event under clothes, with multi-frame visual context showing the individual adjusting their waist area (consistent with hiding an item under clothing) as they move through the aisle, matching the subtype of concealment under clothes.","latency_ms":2205.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) is supported by the trajectory evidence showing co-disappear (1.0) and dwell ratio 1.0, indicating the person likely hid an item under clothes. Although no explicit visual of the concealment is seen in these frames, the consistent multi-frame behavior (e.g., holding an item while walking away from shelves, then disappearing into a zone where concealment is inferred) aligns with the 'conceal_unpaid' label per rule 2: only label when visuals show concealment or clear multi-frame hiding intent. The risk_score is low but the meta evidence (trajectory, co_disappear, mode=hybrid) strongly supports concealment intent.","latency_ms":3948.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"fp_suppressed","rationale":"The individual is walking through the aisle, holding a small object in his hand, and appears to be examining products on the shelves. There is no visible concealment of merchandise into a bag, pocket, or under clothing. The behavior aligns with normal shopping activity.","latency_ms":2324.9}]}],"miss_pos":[{"kind":"miss_pos","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting012_x264__C_14__conceal__7","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.85,"rationale":"The person in the white shirt is handling and examining fabric products on the store table, which is normal shopping behavior consistent with browsing merchandise, with no visual evidence of concealing unpaid items into a bag, pocket, or under clothes. The L1 conceal event is a soft hint that is not supported by clear visual evidence of hiding merchandise.","latency_ms":3134.9,"agreement_hint":"miss_pos","center_ts":562.7666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_14__conceal__7&file=kf_00_561.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_14__conceal__7&file=kf_01_562.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_14__conceal__7&file=kf_02_563.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_14__conceal__7&file=kf_03_563.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show the person in a position consistent with hiding merchandise near the waist area while browsing the display.","latency_ms":1548.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.85,"agreement_hint":"miss_pos","rationale":"The person in the white shirt is handling and examining fabric products on the store table, which is normal shopping behavior consistent with browsing merchandise, with no visual evidence of concealing unpaid items into a bag, pocket, or under clothes. The L1 conceal event is a soft hint that is not supported by clear visual evidence of hiding merchandise.","latency_ms":3134.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (1.0) and high dwell ratio (0.833), indicates the customer likely concealed an item in their pocket or waist area. The person’s posture—bending slightly, hand near hip/low torso—and the absence of visible payment or cart placement across multiple frames support concealment intent rather than browsing or checkout. No clear visual of the item being hidden is seen in these frames, but the multi-frame behavioral pattern and L1 metadata strongly suggest unpaid concealment.","latency_ms":3048.4},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the foreground is seen placing an item into their pocket, consistent with concealment behavior. The L1 event 'conceal' further supports this inference, as it aligns with the visual evidence of hiding unpaid merchandise.","latency_ms":1749.9}]},{"kind":"miss_pos","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_5__2","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The individual is holding multiple clothing items while browsing the clothing rack, with no visible action of concealing items into a bag, pocket, or under clothes; the behavior is consistent with normal shopping activity of examining or carrying items while browsing.","latency_ms":2590.5,"agreement_hint":"miss_pos","center_ts":149.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__2&file=kf_00_148.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__2&file=kf_01_149.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__2&file=kf_02_149.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__2&file=kf_03_150.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks; no concealment into bags, pockets, or clothing is visible. The L1 qty_spike is a soft hint only and is not supported by clear visual evidence of hiding merchandise.","latency_ms":1211.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is holding multiple clothing items while browsing the clothing rack, with no visible action of concealing items into a bag, pocket, or under clothes; the behavior is consistent with normal shopping activity of examining or carrying items while browsing.","latency_ms":2590.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing and handling clothing items on a rack, picking up, examining, and repositioning garments in a typical shopping manner. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothes) or intent to steal — the behavior aligns with normal shopping activity. The L1 event 'qty_spike' is likely due to rapid handling of multiple items while browsing, not theft.","latency_ms":3758.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is picking up and examining clothing items, holding them in their hands, and appears to be browsing through the merchandise. There is no visible concealment of items into bags, pockets, or under clothes, and the behavior aligns with normal shopping activity.","latency_ms":2268.7}]},{"kind":"miss_pos","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_5__qty_spike__7","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The individual is holding multiple clothing items while standing at a clothing rack, engaging in normal shopping behavior of examining or selecting merchandise, with no visible concealment of unpaid items into bags, pockets, or under clothes.","latency_ms":3145.6,"agreement_hint":"miss_pos","center_ts":149.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__qty_spike__7&file=kf_00_148.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__qty_spike__7&file=kf_01_149.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__qty_spike__7&file=kf_02_149.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__qty_spike__7&file=kf_03_150.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The keyframes show customers browsing and handling clothing on racks. No concealment into bags, pockets, or clothing is visible. The L1 qty_spike event is a soft hint and lacks matching visual evidence of theft.","latency_ms":1484.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is holding multiple clothing items while standing at a clothing rack, engaging in normal shopping behavior of examining or selecting merchandise, with no visible concealment of unpaid items into bags, pockets, or under clothes.","latency_ms":3145.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing and handling clothing items on a rack, picking up, examining, and repositioning garments in a typical shopping manner. There is no visual evidence of concealment (e.g., putting items into bags, pockets, or under clothes) or intent to steal — the behavior aligns with normal shopping activity. The L1 event 'qty_spike' may reflect rapid handling but is not supported by visual concealment cues.","latency_ms":3533.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is picking up and examining clothing items, holding them against their body, and appears to be shopping normally. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames.","latency_ms":1591.0}]},{"kind":"miss_pos","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_8__4","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"rationale":"The customer is picking up, holding, and examining a red garment from a clothing rack, which is normal shopping behavior with no visible concealment of unpaid merchandise.","latency_ms":2701.8,"agreement_hint":"miss_pos","center_ts":170.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__4&file=kf_00_169.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__4&file=kf_01_170.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__4&file=kf_02_170.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__4&file=kf_03_171.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.85,"agreement_hint":"miss_pos","rationale":"The person is seen holding and examining clothing items on hangers in a retail store, with no visible concealment into a bag, pocket, or clothing. The behavior is consistent with normal shopping and browsing.","latency_ms":1219.1},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is picking up, holding, and examining a red garment from a clothing rack, which is normal shopping behavior with no visible concealment of unpaid merchandise.","latency_ms":2701.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing and handling clothing items on a rack, selecting and examining them in a typical shopping manner. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothes) or intent to steal — the actions are consistent with normal shopping behavior (picking up, holding, inspecting, and likely returning or placing in cart, though cart not visible). L1 event 'qty_spike' alone is insufficient without visual confirmation of concealment; here, the person’s actions remain transparent and non-suspicious.","latency_ms":3321.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is examining a red garment by holding it up and looking at it, consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or under clothing, and the L1 event 'qty_spike' does not appear to be supported by clear visual evidence of intent to steal.","latency_ms":2522.4}]},{"kind":"miss_pos","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_8__qty_spike__9","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"rationale":"The customer is only picking up, holding, and examining a red garment from a clothing rack across the provided frames, with no action of concealing the item into a bag, pocket, or under clothes. The L1 qty_spike event is a soft hint without matching concealment visual evidence, so normal shopping behavior is confirmed.","latency_ms":3124.5,"agreement_hint":"miss_pos","center_ts":170.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__qty_spike__9&file=kf_00_169.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__qty_spike__9&file=kf_01_170.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__qty_spike__9&file=kf_02_170.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__qty_spike__9&file=kf_03_171.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.85,"agreement_hint":"miss_pos","rationale":"The person is seen holding and examining clothing items on hangers in a retail setting, with no visible concealment into a bag, pocket, or clothing. The behavior is consistent with normal shopping and browsing.","latency_ms":1284.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is only picking up, holding, and examining a red garment from a clothing rack across the provided frames, with no action of concealing the item into a bag, pocket, or under clothes. The L1 qty_spike event is a soft hint without matching concealment visual evidence, so normal shopping behavior is confirmed.","latency_ms":3124.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing and handling clothing items on a rack, selecting and examining them in a typical shopping manner. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothes) or intent to steal — the actions are consistent with normal retail browsing behavior. The L1 event 'qty_spike' may reflect multiple items being handled quickly but does not override the clear visual context of examination and selection without hiding.","latency_ms":2488.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is picking up and examining a red garment from the rack, which is consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or under clothing, and no multi-frame intent to hide the item is evident.","latency_ms":1820.4}]},{"kind":"miss_pos","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting041_x264__C_13__2","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The customer is holding and examining a product in a normal shopping manner, with no visible concealment into bags, pockets, or under clothing across the sequence of frames. The L1 qty_spike event is a soft hint without matching visual evidence of concealment.","latency_ms":2733.4,"agreement_hint":"miss_pos","center_ts":391.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__2&file=kf_00_390.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__2&file=kf_01_390.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__2&file=kf_02_391.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__2&file=kf_03_392.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show two individuals standing at a counter with visible merchandise; no concealment into bags, pockets, or clothing is evident. The L1 qty_spike is a soft hint only and lacks visual confirmation of hiding behavior.","latency_ms":1712.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is holding and examining a product in a normal shopping manner, with no visible concealment into bags, pockets, or under clothing across the sequence of frames. The L1 qty_spike event is a soft hint without matching visual evidence of concealment.","latency_ms":2733.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#13) is seen interacting with the counter while another person stands nearby. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, but more importantly, the customer’s posture—bending slightly, hands near the waist/counter area, and the presence of a white bag on the counter—combined with the context of the store layout and lack of visible payment, strongly indicates concealment of unpaid merchandise. No clear checkout or return action is observed; instead, the behavior aligns with shoplifting intent where items are hidden on the body or in bags without payment. The multi-frame sequence shows no item being placed into a cart or basket, nor any visible payment action.","latency_ms":3265.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is at the checkout counter, interacting with the cashier and handling products in a manner consistent with paying for items. There is no visible concealment of merchandise into bags, pockets, or under clothing.","latency_ms":1766.5}]},{"kind":"miss_pos","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting041_x264__C_13__qty_spike__7","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The customer is holding and examining a product over the counter, consistent with normal shopping behavior of inspecting merchandise, with no visual evidence of concealing unpaid items into a bag, pocket, or under clothes.","latency_ms":2677.0,"agreement_hint":"miss_pos","center_ts":391.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__qty_spike__7&file=kf_00_390.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__qty_spike__7&file=kf_01_390.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__qty_spike__7&file=kf_02_391.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__qty_spike__7&file=kf_03_392.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show two individuals standing at a counter with visible merchandise; no concealment into bags, pockets, or clothing is evident. The L1 qty_spike is a soft proxy and lacks visual confirmation of hiding behavior.","latency_ms":1395.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is holding and examining a product over the counter, consistent with normal shopping behavior of inspecting merchandise, with no visual evidence of concealing unpaid items into a bag, pocket, or under clothes.","latency_ms":2677.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#13) is seen interacting with the counter while another person stands nearby. The L1 event 'qty_spike' and high 'handheld_peak' suggest multiple items were handled quickly. In the sequence, the customer’s hands are near the counter surface, and there is a white bag or item being held close to the body—consistent with concealing merchandise under clothing or into a bag. No payment is visible, and the behavior aligns with shoplifting intent: rapid handling of multiple items without placing them in a cart or basket, followed by potential concealment. The presence of multiple items on the counter and the customer’s posture indicate an attempt to hide goods rather than normal browsing.","latency_ms":3449.3},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is at the checkout counter, interacting with the cashier and handling products in a manner consistent with paying for items. There is no evidence of concealment or hiding unpaid merchandise.","latency_ms":2899.1}]}],"keep_ok":[{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"dcsass__demo_dcsass_03__C_2__conceal__0","clip_id":"dcsass__demo_dcsass_03","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Multi-frame visual evidence shows a customer (person P#2) moving an item toward their hip pocket, consistent with the L1 conceal event subtype of pocket concealment, indicating hiding an unpaid product on their body.","latency_ms":2886.6,"agreement_hint":"keep_ok","center_ts":1.9666666666666666,"corpus":"demo","media_url":"/api/media/sample/demo_dcsass_03.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=dcsass__demo_dcsass_03__C_2__conceal__0&file=kf_00_0.83s.jpg","/api/path1_case_keyframe?case_id=dcsass__demo_dcsass_03__C_2__conceal__0&file=kf_01_1.60s.jpg","/api/path1_case_keyframe?case_id=dcsass__demo_dcsass_03__C_2__conceal__0&file=kf_02_2.33s.jpg","/api/path1_case_keyframe?case_id=dcsass__demo_dcsass_03__C_2__conceal__0&file=kf_03_2.97s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The L1 event suggests a concealment into a pocket at the hip, but the provided keyframes are too blurry and low-resolution to visually confirm any item being hidden. The person in the blue cap is seen handling something near their chest/waist, but without clear visual evidence of the item or the concealment action, a definitive label cannot be assigned.","latency_ms":1409.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Multi-frame visual evidence shows a customer (person P#2) moving an item toward their hip pocket, consistent with the L1 conceal event subtype of pocket concealment, indicating hiding an unpaid product on their body.","latency_ms":2886.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with the trajectory evidence showing co-disappearance (item vanishes from view after approach) and high dwell ratio (0.833), strongly suggests the person is concealing an item in their pocket or clothing. The person's hand movements near the hip area across multiple frames (13:09:17–13:09:19) are consistent with hiding merchandise, and the risk score, though low, aligns with this behavior. No visual of payment or return to shelf occurs, and the action is not typical browsing.","latency_ms":3145.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen making a deliberate motion consistent with concealing an item into their pocket or clothing, as indicated by the L1 event 'conceal' and supported by the visual evidence of their hand positioning near their hip area.","latency_ms":2629.2}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting012_x264__C_16__conceal__5","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event indicates a conceal event under clothes, with model score 0.85, and multi-frame behavior aligns with hiding merchandise on the person's body, matching the conceal_unpaid label criteria.","latency_ms":2964.0,"agreement_hint":"keep_ok","center_ts":441.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_16__conceal__5&file=kf_00_440.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_16__conceal__5&file=kf_01_440.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_16__conceal__5&file=kf_02_441.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_16__conceal__5&file=kf_03_442.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.4,"agreement_hint":"uncertain","rationale":"The keyframes show a person seated at a counter handling fabric and interacting with another person, but no clear concealment into a bag, pocket, or under clothes is visible across the frames. The L1 conceal hint is not corroborated by obvious visual evidence in these images.","latency_ms":1179.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a conceal event under clothes, with model score 0.85, and multi-frame behavior aligns with hiding merchandise on the person's body, matching the conceal_unpaid label criteria.","latency_ms":2964.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 0.833) indicates the person likely concealed an item under their clothes. The person is seated at a table with fabrics, and their posture and arm movement suggest hiding something—consistent with concealment intent. No payment or visible return to shelf occurs; no clear checkout action. This matches 'conceal_unpaid' per rules: multi-frame hiding behavior, not just browsing.","latency_ms":3244.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is engaged in a transaction at the checkout counter, handling items on the table and interacting with the cashier. There is no evidence of concealment or hiding of merchandise.","latency_ms":1807.7}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting012_x264__C_20__conceal__4","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual in the yellow top interacts with merchandise across multiple frames, with L1 event indicating concealment in a hip pocket; multi-frame behavior shows handling of goods consistent with hiding unpaid items, matching the conceal_unpaid criteria.","latency_ms":3008.9,"agreement_hint":"keep_ok","center_ts":417.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_20__conceal__4&file=kf_00_416.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_20__conceal__4&file=kf_01_416.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_20__conceal__4&file=kf_02_417.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_20__conceal__4&file=kf_03_418.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a model score of 0.85, and the keyframes show the person in an orange top interacting with merchandise at a display table. While the exact concealment is not perfectly clear in the low-resolution frames, the multi-frame behavior and L1 evidence suggest the person is hiding unpaid merchandise on their body.","latency_ms":1494.8},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the yellow top interacts with merchandise across multiple frames, with L1 event indicating concealment in a hip pocket; multi-frame behavior shows handling of goods consistent with hiding unpaid items, matching the conceal_unpaid criteria.","latency_ms":3008.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after interaction) and high model score (0.85), strongly indicates the person is concealing merchandise in their pocket or clothing. The multi-frame behavior shows them handling fabric items near the counter, then moving with a posture suggesting hidden placement—consistent with shoplifting intent. No payment or visible return to shelf occurs.","latency_ms":2698.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing a large, patterned fabric item into their bag or pocket area near the checkout counter, consistent with concealment behavior. The surrounding context of other shoppers and staff does not contradict this intent.","latency_ms":2191.8}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting012_x264__C_21__conceal__6","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event indicates a concealment event in the hip pocket zone, with supporting trajectory evidence, and multi-frame behavior aligns with hiding an unpaid item on the person’s body, matching the conceal_unpaid label criteria.","latency_ms":3062.4,"agreement_hint":"keep_ok","center_ts":489.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_21__conceal__6&file=kf_00_488.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_21__conceal__6&file=kf_01_488.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_21__conceal__6&file=kf_02_489.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_21__conceal__6&file=kf_03_490.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the yellow and black top is seen handling merchandise at the table and then moving her hands toward her hip/pocket area, consistent with the L1 conceal event (subtype pocket, zone hip). The multi-frame sequence shows her interacting with items and then concealing them on her body rather than carrying them visibly or placing them in a cart.","latency_ms":1443.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment event in the hip pocket zone, with supporting trajectory evidence, and multi-frame behavior aligns with hiding an unpaid item on the person’s body, matching the conceal_unpaid label criteria.","latency_ms":3062.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappearance (item vanishes from view after interaction) and high model score (0.85), strongly suggests the person is concealing an item in their pocket or clothing. The multi-frame behavior shows the individual standing near a large fabric display, interacting closely with it, and maintaining a posture consistent with hiding something at the hip. No payment or visible placement into a cart occurs; no clear return to shelf. This aligns with 'conceal_unpaid' per rules: concealment into pocket/clothes inferred across frames, not just a single grab.","latency_ms":3355.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is examining a large piece of fabric on a table, which is consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or under clothing, and the actions across the frames suggest she is inspecting the item rather than attempting to steal it.","latency_ms":2522.6}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting012_x264__C_34__conceal__8","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The male individual in the white shirt is observed moving his hand toward his hip pocket (consistent with the L1 event's subtype of pocket concealment) across sequential frames, with multi-frame behavior indicating an action to hide an unpaid item in his clothing pocket, matching the conceal_unpaid definition.","latency_ms":3128.7,"agreement_hint":"keep_ok","center_ts":659.9666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_34__conceal__8&file=kf_00_658.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_34__conceal__8&file=kf_01_659.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_34__conceal__8&file=kf_02_660.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_34__conceal__8&file=kf_03_661.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The L1 event suggests a concealment into a pocket at the hip, but the provided keyframes do not clearly show a person concealing unpaid merchandise. The frames show a shop setting with people browsing and a person seated, but no visible act of hiding an item into clothing or a bag is evident. Without clear visual confirmation of concealment, the label is uncertain.","latency_ms":1560.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The male individual in the white shirt is observed moving his hand toward his hip pocket (consistent with the L1 event's subtype of pocket concealment) across sequential frames, with multi-frame behavior indicating an action to hide an unpaid item in his clothing pocket, matching the conceal_unpaid definition.","latency_ms":3128.7},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (1.0) and dwell ratio 1.0 across 4 frames, indicates the person likely concealed an item in their pocket or waist area. The person is seated near a table with merchandise, and the timing and behavior align with hiding an item without payment. No visual of the actual concealment is seen, but the multi-frame pattern and high model score (0.85) support this inference.","latency_ms":2752.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item into their pocket (as indicated by the L1 event 'conceal' and visual evidence of hand movement toward the hip area), which constitutes hiding unpaid merchandise on their body.","latency_ms":2347.1}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting012_x264__C_3__conceal__1","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The customer is observed manipulating a large golden fabric item, tucking it under their clothing (consistent with the L1 event subtype 'under_clothes') across consecutive frames, showing clear intent to conceal an unpaid product rather than normal shopping activity.","latency_ms":3036.2,"agreement_hint":"keep_ok","center_ts":174.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_3__conceal__1&file=kf_00_173.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_3__conceal__1&file=kf_01_174.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_3__conceal__1&file=kf_02_174.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_3__conceal__1&file=kf_03_175.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the yellow top is seen handling merchandise at the display table and then making movements consistent with tucking or hiding an item under their clothing, matching the L1 conceal event subtype 'under_clothes'.","latency_ms":1282.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer is observed manipulating a large golden fabric item, tucking it under their clothing (consistent with the L1 event subtype 'under_clothes') across consecutive frames, showing clear intent to conceal an unpaid product rather than normal shopping activity.","latency_ms":3036.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 1.0) indicates the person likely concealed an item under their clothes. The person is standing near the counter with a large fabric item being handled by another person, but the keyframe sequence shows no visible payment or return to shelf; instead, the concealment pattern aligns with shoplifting intent. No clear visual of the item being hidden in this specific frame set, but the L1 context strongly supports concealment intent across frames.","latency_ms":3073.4},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is standing at a checkout counter with a large item spread out on the counter, appearing to be in the process of paying or completing a transaction. There is no evidence of concealment or hiding of merchandise.","latency_ms":2250.0}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting012_x264__C_5__conceal__0","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Across sequential frames, the person in the white shirt moves a yellow product from the counter and conceals it under their clothing (pants/waist area), matching the L1 conceal event subtype of under_clothes, with multi-frame behavior showing the product being hidden rather than normal shopping or checkout.","latency_ms":3269.6,"agreement_hint":"keep_ok","center_ts":101.96666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_5__conceal__0&file=kf_00_100.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_5__conceal__0&file=kf_01_101.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_5__conceal__0&file=kf_02_102.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_5__conceal__0&file=kf_03_103.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the yellow top is seen seated and repeatedly interacting with an item near their lap/waist area, with the L1 event indicating concealment under clothes. Across the frames, the item is no longer visible on the table or in hand, suggesting it was hidden on the body.","latency_ms":1400.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the person in the white shirt moves a yellow product from the counter and conceals it under their clothing (pants/waist area), matching the L1 conceal event subtype of under_clothes, with multi-frame behavior showing the product being hidden rather than normal shopping or checkout.","latency_ms":3269.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'under_clothes', and the visual sequence shows the customer (C#5, P#5) sitting at the counter while the staff member is distracted; the customer's hand is near their waist/hip area where a yellow item (likely the concealed product) is later seen in the staff member's hand. The trajectory evidence indicates 'below_threshold' and 'co_disappear', consistent with hiding an item under clothes. No payment occurs, and the item is not placed in a visible cart or basket. This meets the criteria for 'conceal_unpaid' as it involves hiding merchandise on the body without intent to pay.","latency_ms":4061.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is seated at a table in what appears to be a restaurant or dining area, interacting with another person who seems to be an employee or server. There is no evidence of concealment, hiding, or shoplifting intent. The behavior is consistent with normal dining and checkout activities.","latency_ms":2111.1}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting012_x264__C_6__conceal__2","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The customer (C#6) is observed over multiple frames moving an item toward their hip pocket, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior showing the item being hidden in their clothing pocket.","latency_ms":3468.0,"agreement_hint":"keep_ok","center_ts":199.16666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_6__conceal__2&file=kf_00_198.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_6__conceal__2&file=kf_01_198.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_6__conceal__2&file=kf_02_199.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_6__conceal__2&file=kf_03_200.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the yellow top is seen handling merchandise at the display table and then moving their hands toward their hip/pocket area in a manner consistent with concealing an item, matching the L1 conceal event with pocket/hip subtype.","latency_ms":1571.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer (C#6) is observed over multiple frames moving an item toward their hip pocket, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior showing the item being hidden in their clothing pocket.","latency_ms":3468.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after interaction) and high model score (0.85), strongly indicates the customer is concealing an item in their pocket or clothing. The person's posture and hand movements near the hip area across frames support this, especially since they are not placing the item in a visible cart or basket. No payment is observed, and the context suggests intent to steal rather than browse.","latency_ms":3213.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is standing at a checkout counter with merchandise laid out on the table, appearing to be in the process of paying or completing a transaction. There is no visible concealment of items into bags, pockets, or under clothing, and the behavior aligns with normal checkout procedures.","latency_ms":2099.4}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting012_x264__C_9__conceal__3","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 conceal event with subtype 'pocket' (hip zone) aligns with multi-frame visual context of the individual's actions, showing behavior consistent with hiding an unpaid item on their person, matching the conceal_unpaid label criteria.","latency_ms":2285.2,"agreement_hint":"keep_ok","center_ts":232.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_9__conceal__3&file=kf_00_231.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_9__conceal__3&file=kf_01_232.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_9__conceal__3&file=kf_02_232.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_9__conceal__3&file=kf_03_233.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The keyframes show a person in a yellow top seated at a counter with another person standing nearby, appearing to handle items on the counter. No clear concealment into a bag, pocket, or clothing is visible across the frames, and the L1 conceal event is not corroborated by obvious visual evidence.","latency_ms":1216.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 conceal event with subtype 'pocket' (hip zone) aligns with multi-frame visual context of the individual's actions, showing behavior consistent with hiding an unpaid item on their person, matching the conceal_unpaid label criteria.","latency_ms":2285.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after interaction) and high model score (0.85), strongly indicates the person is concealing an item in their pocket or clothing. The multi-frame behavior shows them leaning over the table, interacting with items, then a clear disappearance of the item from visible space—consistent with concealment rather than browsing or checkout. No payment or return to shelf is observed.","latency_ms":2880.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The individual is seated at a counter, interacting with a salesperson who appears to be processing a transaction. There are no visible signs of concealment or hiding of merchandise, and the behavior aligns with a normal checkout process.","latency_ms":2280.8}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting014_x264__C_1__conceal__1","clip_id":"ucf_theft__Shoplifting014_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual in the patterned top and red pants is observed moving an item from the shelf area toward their hip pocket across consecutive frames, matching the L1 conceal event subtype of pocket concealment, with visual evidence of hiding an unpaid product on their person.","latency_ms":2729.4,"agreement_hint":"keep_ok","center_ts":754.7666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting014_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_1__conceal__1&file=kf_00_753.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_1__conceal__1&file=kf_01_754.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_1__conceal__1&file=kf_02_755.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_1__conceal__1&file=kf_03_755.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the orange outfit is seen moving through the store and appears to be concealing an item under her clothing or in a bag, consistent with the L1 conceal event indicating a pocket/hip concealment.","latency_ms":1336.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the patterned top and red pants is observed moving an item from the shelf area toward their hip pocket across consecutive frames, matching the L1 conceal event subtype of pocket concealment, with visual evidence of hiding an unpaid product on their person.","latency_ms":2729.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' and zone 'hip', and the visual sequence shows the person (in red/orange attire) turning away from the shelf, bringing their hands toward their hip area while holding a dark item, consistent with pocketing or concealing merchandise under clothing. The multi-frame behavior supports concealment intent rather than browsing or checkout. No payment is observed, and the risk score, though low, aligns with the visual evidence of hiding an item on the body.","latency_ms":2899.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their pocket or waistband area, which is consistent with concealment behavior. This action, combined with the L1 event 'conceal' and the visual evidence of the item being hidden on the body, strongly suggests intent to steal unpaid merchandise.","latency_ms":1722.4}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting014_x264__C_4__conceal__0","clip_id":"ucf_theft__Shoplifting014_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The customer interacts with clothing on a rack, and multi-frame behavior shows an action consistent with hiding an item under her clothing (matching the L1 conceal event subtype of under_clothes), with no visible payment action or return to shelf for the item, indicating concealment of unpaid merchandise.","latency_ms":3259.8,"agreement_hint":"keep_ok","center_ts":87.96666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting014_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_4__conceal__0&file=kf_00_86.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_4__conceal__0&file=kf_01_87.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_4__conceal__0&file=kf_02_88.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_4__conceal__0&file=kf_03_89.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The person in red is seen handling merchandise near a rack and then turning away while adjusting her clothing, consistent with concealing an item under her clothes. The L1 event 'conceal' with subtype 'under_clothes' and high model score supports this, and the multi-frame sequence shows a clear hiding action rather than normal browsing.","latency_ms":1563.0},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer interacts with clothing on a rack, and multi-frame behavior shows an action consistent with hiding an item under her clothing (matching the L1 conceal event subtype of under_clothes), with no visible payment action or return to shelf for the item, indicating concealment of unpaid merchandise.","latency_ms":3259.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 0.6667) indicates the person likely concealed an item under clothing. In the frames, the person is seen adjusting her headscarf/face area while holding a garment, which aligns with hiding an item under clothes — a classic shoplifting tactic. No payment or return to shelf is observed, and the behavior is inconsistent with normal browsing.","latency_ms":2715.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item under their clothing, which is consistent with concealment behavior. The L1 event 'conceal' further supports this inference.","latency_ms":2596.6}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting014_x264__C_77__conceal__2","clip_id":"ucf_theft__Shoplifting014_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Multi-frame visual evidence shows the customer moving an item toward their hip pocket (consistent with the L1 conceal event subtype of pocket), hiding the item from view as part of a shoplifting-related concealment action.","latency_ms":2608.4,"agreement_hint":"keep_ok","center_ts":1947.9666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting014_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_77__conceal__2&file=kf_00_1946.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_77__conceal__2&file=kf_01_1947.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_77__conceal__2&file=kf_02_1948.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_77__conceal__2&file=kf_03_1949.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person is seen holding a dark item and moving it toward her hip/pocket area while turning away from the camera, consistent with the L1 conceal event indicating a pocket concealment at the hip. The multi-frame sequence shows the item disappearing from view near her body, suggesting unpaid concealment rather than normal browsing.","latency_ms":1657.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Multi-frame visual evidence shows the customer moving an item toward their hip pocket (consistent with the L1 conceal event subtype of pocket), hiding the item from view as part of a shoplifting-related concealment action.","latency_ms":2608.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with the trajectory evidence showing co-disappearance (item vanishes from visible hand into hip area) and high dwell ratio (0.8), strongly indicates concealment. The person’s posture and movement—reaching toward the hip while holding an item in the other hand, then turning away without placing it in a cart or basket—supports intent to hide unpaid merchandise. No payment or checkout is observed.","latency_ms":2693.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their pocket, which is consistent with concealment behavior. The L1 event 'conceal' further supports this inference.","latency_ms":1917.0}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting030_x264__C_10__conceal__5","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual (P#10) is observed moving an item toward their hip pocket across sequential frames, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior consistent with hiding an unpaid product.","latency_ms":2425.9,"agreement_hint":"keep_ok","center_ts":222.76666666666668,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_10__conceal__5&file=kf_00_221.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_10__conceal__5&file=kf_01_222.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_10__conceal__5&file=kf_02_223.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_10__conceal__5&file=kf_03_223.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.4,"agreement_hint":"uncertain","rationale":"The overhead frames show multiple shoppers near a display counter, but no clear concealment into a pocket, bag, or clothing is visible. The L1 conceal hint is not sufficiently supported by the visuals, so the action cannot be confirmed.","latency_ms":1275.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#10) is observed moving an item toward their hip pocket across sequential frames, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior consistent with hiding an unpaid product.","latency_ms":2425.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (1.0) and high dwell ratio (0.833), indicates the person likely concealed an item in their pocket or waist area. The person’s posture and hand movement near the hip area across multiple frames support this, and the risk score is low but the visual trajectory pattern strongly suggests concealment rather than normal browsing. No payment or return to shelf is observed.","latency_ms":3096.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their backpack, which is a clear act of concealing unpaid merchandise. This behavior aligns with the 'conceal_unpaid' label as it involves hiding an item on their person without proceeding to checkout.","latency_ms":2385.8}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting030_x264__C_11__1","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual in the sleeveless patterned top moves an item from the shelf into their brown bag across sequential frames, hiding the product in the bag rather than placing it visibly for checkout or return, matching the definition of concealing unpaid merchandise.","latency_ms":3074.1,"agreement_hint":"keep_ok","center_ts":203.16666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__1&file=kf_00_202.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__1&file=kf_01_202.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__1&file=kf_02_203.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__1&file=kf_03_204.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show multiple people in a retail environment, with some individuals holding or examining items near shelves and counters. There is no clear visual evidence of concealing unpaid merchandise into bags, pockets, or clothing across the frames. The L1 event is a soft qty_spike hint without matching visual concealment evidence, so the behavior appears to be normal shopping or browsing.","latency_ms":1452.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the sleeveless patterned top moves an item from the shelf into their brown bag across sequential frames, hiding the product in the bag rather than placing it visibly for checkout or return, matching the definition of concealing unpaid merchandise.","latency_ms":3074.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer in the blue shirt (C#11) is seen reaching toward a shelf, then quickly moving with a sudden motion while holding an item close to their body. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, and the person’s posture—bending slightly, keeping arms close, and moving away from the display without placing the item in a visible cart or basket—indicates concealment intent. No clear checkout or return action is observed, and the behavior deviates from normal browsing. The presence of other customers nearby does not negate the suspicious multi-frame pattern of hiding merchandise.","latency_ms":3507.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"steal","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person in the orange shirt is seen concealing an item under their arm while standing near the checkout counter, indicating clear intent to shoplift. This behavior aligns with the 'steal' label as it shows concealment of unpaid merchandise.","latency_ms":2066.3}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting030_x264__C_11__conceal__2","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual (P#11) is observed in multi-frame behavior consistent with concealing an unpaid item in their hip pocket, matching the L1 conceal event subtype of pocket concealment, with visual trajectory and item evidence supporting the hiding action across frames.","latency_ms":2473.6,"agreement_hint":"keep_ok","center_ts":124.76666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__conceal__2&file=kf_00_123.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__conceal__2&file=kf_01_124.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__conceal__2&file=kf_02_125.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__conceal__2&file=kf_03_125.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The L1 event suggests a concealment into a pocket at the hip, but the provided keyframes are too low-resolution and distant to visually confirm any item being hidden. No clear multi-frame concealment behavior is discernible from the images alone.","latency_ms":1375.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#11) is observed in multi-frame behavior consistent with concealing an unpaid item in their hip pocket, matching the L1 conceal event subtype of pocket concealment, with visual trajectory and item evidence supporting the hiding action across frames.","latency_ms":2473.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view) and high model score (0.85), strongly indicates the person is hiding an item in their pocket or clothing. The multi-frame behavior shows the individual leaning forward and making a motion consistent with concealing an object at the hip, which aligns with the 'conceal_unpaid' label per rules—specifically, concealment into clothing/pocket, not just holding. No payment or visible return to shelf occurs.","latency_ms":2794.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.95,"agreement_hint":"keep_ok","rationale":"The individual is seen bending over and placing an item into their waistband or pocket area, consistent with concealing unpaid merchandise. This behavior aligns with the 'conceal' L1 event and demonstrates clear intent to hide the item from view.","latency_ms":2831.2}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting030_x264__C_11__qty_spike__4","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual in the sleeveless patterned top moves their arm from reaching toward merchandise on the shelf to tucking an item into their brown bag across multiple consecutive frames, demonstrating clear concealment of an unpaid product.","latency_ms":2149.0,"agreement_hint":"keep_ok","center_ts":203.16666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__qty_spike__4&file=kf_00_202.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__qty_spike__4&file=kf_01_202.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__qty_spike__4&file=kf_02_203.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__qty_spike__4&file=kf_03_204.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show multiple shoppers in a store, with individuals holding bags and items, but no clear visual evidence of concealing unpaid merchandise into pockets, bags, or clothing. The L1 qty_spike event is a soft hint and not sufficient without matching visual concealment.","latency_ms":1301.1},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the sleeveless patterned top moves their arm from reaching toward merchandise on the shelf to tucking an item into their brown bag across multiple consecutive frames, demonstrating clear concealment of an unpaid product.","latency_ms":2149.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer in the blue shirt (C#11) is seen reaching into a display area and then quickly moving toward their body while holding an item. In the final frame, they appear to be tucking or hiding the item under their clothing or into a bag, consistent with concealment behavior. The L1 event 'qty_spike' and 'taken_proxy>=2' support multiple items being taken, and the multi-frame sequence shows intent to hide rather than return or place in cart. No visible payment occurs, and the action is inconsistent with normal browsing.","latency_ms":2923.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"steal","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the blue shirt is seen placing an item into their waistband or pocket area, which is consistent with concealment behavior. This action, combined with the proximity to the checkout counter and the presence of other shoppers, strongly suggests an intent to shoplift.","latency_ms":2136.6}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting030_x264__C_1__0","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual in the green plaid shirt adjusts their bag in a sequence of frames, with the bag appearing to shift position toward their torso in a way consistent with hiding an unpaid item, paired with the L1 qty_spike event indicating a potential product take.","latency_ms":3069.4,"agreement_hint":"keep_ok","center_ts":158.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__0&file=kf_00_157.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__0&file=kf_01_158.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__0&file=kf_02_158.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__0&file=kf_03_159.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show individuals standing and interacting near a display counter, with no visible concealment of merchandise into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding intent across frames.","latency_ms":1161.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the green plaid shirt adjusts their bag in a sequence of frames, with the bag appearing to shift position toward their torso in a way consistent with hiding an unpaid item, paired with the L1 qty_spike event indicating a potential product take.","latency_ms":3069.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (in the plaid shirt, center-right) is seen bending down and placing an item into a bag or pocket area near their waist/hip while others are distracted. The L1 event 'qty_spike' and 'handheld_peak>=2' suggest multiple items were handled quickly, and the body posture (bending, hiding motion) combined with the context of a retail store strongly indicates concealment of unpaid merchandise. This matches the definition of 'conceal_unpaid' — hiding on the body — not just browsing.","latency_ms":2728.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen holding an item in their hand and appears to be examining or considering it, consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or clothing, and the actions do not indicate shoplifting intent.","latency_ms":2089.1}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting030_x264__C_1__conceal__1","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual (P#1) is observed moving an item toward their hip pocket across sequential frames, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior indicating hiding an unpaid product rather than normal shopping activity.","latency_ms":3199.2,"agreement_hint":"keep_ok","center_ts":92.76666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__conceal__1&file=kf_00_91.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__conceal__1&file=kf_01_92.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__conceal__1&file=kf_02_93.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__conceal__1&file=kf_03_93.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show a person in the foreground with a bag and hand near the hip area, consistent with hiding merchandise. While the visual evidence is not perfectly clear, the combination of the L1 conceal event and the observed posture supports concealment of unpaid merchandise.","latency_ms":1447.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#1) is observed moving an item toward their hip pocket across sequential frames, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior indicating hiding an unpaid product rather than normal shopping activity.","latency_ms":3199.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view) and high model score (0.85), strongly indicates the person is concealing an item in their pocket or clothing. The multi-frame behavior shows them standing near the counter while making a motion consistent with hiding an item, and no payment is observed. This aligns with 'conceal_unpaid' per rules: concealment into body/pocket is confirmed by both visual context and L1 metadata.","latency_ms":3152.2},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item into their pocket, which is a clear act of concealment. This behavior aligns with the 'conceal' event type and indicates an intent to steal unpaid merchandise.","latency_ms":1637.5}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting030_x264__C_1__qty_spike__3","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual in the green plaid shirt adjusts their bag in a sequence of frames, with the bag positioned to conceal items, consistent with hiding unpaid merchandise. The L1 qty_spike event provides additional soft context supporting potential concealment, and the multi-frame behavior shows intent to hide items rather than normal browsing.","latency_ms":2861.1,"agreement_hint":"keep_ok","center_ts":158.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__qty_spike__3&file=kf_00_157.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__qty_spike__3&file=kf_01_158.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__qty_spike__3&file=kf_02_158.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__qty_spike__3&file=kf_03_159.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show multiple people in a retail environment, with some individuals holding or examining items near a display counter. There is no clear visual evidence of a person concealing unpaid merchandise into a bag, pocket, or clothing across the frames. The L1 event is a soft qty_spike hint, but the visuals do not confirm concealment or shoplifting intent.","latency_ms":2239.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the green plaid shirt adjusts their bag in a sequence of frames, with the bag positioned to conceal items, consistent with hiding unpaid merchandise. The L1 qty_spike event provides additional soft context supporting potential concealment, and the multi-frame behavior shows intent to hide items rather than normal browsing.","latency_ms":2861.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (in blue shirt) is seen bending down and reaching toward the floor near their feet while holding a large brown bag. In the context of the L1 event 'qty_spike' and 'handheld_peak>=2', combined with the posture suggesting an attempt to hide or retrieve an item, this behavior strongly indicates concealment of unpaid merchandise. The person’s hand movement near the bag and lower body suggests placing or retrieving an item into the bag without paying. No clear checkout or return action is observed.","latency_ms":2898.2},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen holding and examining a product in their hand, consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or under clothing, and the actions appear to be part of a typical browsing process.","latency_ms":3339.3}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting030_x264__C_20__conceal__6","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual in the red shirt performs a sequence of actions consistent with concealing an unpaid item: they bend down near the shelf area, then move their hands toward their hip pocket (matching the L1 event's subtype of pocket concealment), with multi-frame behavior showing the action of hiding an item on their person rather than normal browsing or checkout.","latency_ms":2916.7,"agreement_hint":"keep_ok","center_ts":313.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_20__conceal__6&file=kf_00_312.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_20__conceal__6&file=kf_01_313.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_20__conceal__6&file=kf_02_313.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_20__conceal__6&file=kf_03_314.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show a person in a red top and dark pants near a display counter with a hand-to-hip motion consistent with hiding merchandise. While the visual evidence is not perfectly clear, the multi-frame behavior and L1 context support concealment.","latency_ms":1353.1},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the red shirt performs a sequence of actions consistent with concealing an unpaid item: they bend down near the shelf area, then move their hands toward their hip pocket (matching the L1 event's subtype of pocket concealment), with multi-frame behavior showing the action of hiding an item on their person rather than normal browsing or checkout.","latency_ms":2916.7},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly labels 'conceal' with subtype 'pocket' and zone 'hip', and the trajectory evidence shows high dwell ratio (0.833) and co-disappear (1.0), indicating the item was hidden on the person's body. The multi-frame behavior shows the customer in close proximity to a display, then moving away with no visible payment or cart placement, consistent with concealment intent. No checkout or return is observed.","latency_ms":2164.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their pocket, which is a clear act of concealment. This behavior aligns with the 'conceal_unpaid' label as it indicates an intent to hide merchandise without paying.","latency_ms":1882.9}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting030_x264__C_28__conceal__7","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual in the light blue shirt performs a sequence of actions across frames: moving toward the right-side display, bending down toward their hip area (matching the L1 event's subtype of pocket concealment), consistent with hiding an unpaid item on their person. The multi-frame behavior aligns with concealment intent rather than normal shopping activity.","latency_ms":3302.3,"agreement_hint":"keep_ok","center_ts":363.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_28__conceal__7&file=kf_00_362.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_28__conceal__7&file=kf_01_362.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_28__conceal__7&file=kf_02_363.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_28__conceal__7&file=kf_03_364.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.3,"agreement_hint":"uncertain","rationale":"The keyframes show multiple people in a store, but no clear visual evidence of a person concealing unpaid merchandise into a bag, pocket, or clothing. The L1 conceal event is a soft hint and cannot be verified from the provided frames.","latency_ms":852.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the light blue shirt performs a sequence of actions across frames: moving toward the right-side display, bending down toward their hip area (matching the L1 event's subtype of pocket concealment), consistent with hiding an unpaid item on their person. The multi-frame behavior aligns with concealment intent rather than normal shopping activity.","latency_ms":3302.3},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' at the hip zone, and the trajectory analysis shows a high co-disappear score (1.0) and dwell ratio (1.0), indicating the item was hidden on the person's body rather than placed in a visible bag or cart. Although no direct visual of the item being pocketed is seen in these frames, the multi-frame behavior (approach, pause at hip, then move away without placing in cart) combined with the strong L1 evidence supports concealment intent. The risk score is low but the model and trajectory scores are high, and the weak label is 'positive' for theft.","latency_ms":2981.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the red top is seen placing an item into their pocket, consistent with concealment behavior. This action aligns with the L1 event 'conceal' and indicates intent to hide unpaid merchandise.","latency_ms":2449.6}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting030_x264__C_2__conceal__0","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual in the red shirt is holding a product against their torso under their clothing, consistent with multi-frame behavior of concealing an unpaid item, matching the L1 conceal event subtype of under_clothes.","latency_ms":2999.5,"agreement_hint":"keep_ok","center_ts":16.766666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_2__conceal__0&file=kf_00_15.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_2__conceal__0&file=kf_01_16.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_2__conceal__0&file=kf_02_17.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_2__conceal__0&file=kf_03_17.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the red shirt is seen bending down and interacting with merchandise in a manner consistent with concealing items under clothing or in a bag, as indicated by the L1 event subtype 'under_clothes' and the visual evidence of the person's posture and actions across multiple frames.","latency_ms":1312.8},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the red shirt is holding a product against their torso under their clothing, consistent with multi-frame behavior of concealing an unpaid item, matching the L1 conceal event subtype of under_clothes.","latency_ms":2999.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person (P#2, red top) is crouched near a display counter and appears to be placing an item under their clothing or into a hidden location, consistent with the L1 event 'conceal' and meta subtype 'under_clothes'. The posture, prolonged crouch, and lack of visible payment or return to shelf indicate intent to conceal unpaid merchandise. This matches the definition of 'conceal_unpaid' as hiding items on the body across multiple frames.","latency_ms":2525.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is crouched near the checkout counter, with their hands positioned in a way that suggests they are concealing an item under their clothing or in a hidden location. This behavior aligns with the 'under_clothes' concealment pattern indicated by the L1 event and visual evidence.","latency_ms":2537.9}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting039_x264__C_2__0","clip_id":"ucf_theft__Shoplifting039_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Across sequential frames, the customer is seen moving items from a display counter and concealing them under their clothing (waistband/pants area) in a manner consistent with hiding unpaid merchandise, matching multi-frame behavior indicating concealment.","latency_ms":2527.6,"agreement_hint":"keep_ok","center_ts":82.36666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting039_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__0&file=kf_00_81.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__0&file=kf_01_82.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__0&file=kf_02_82.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__0&file=kf_03_83.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a person standing near a display table and shelf, facing away from the camera. No concealment into bag, pocket, or clothing is visible. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1405.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the customer is seen moving items from a display counter and concealing them under their clothing (waistband/pants area) in a manner consistent with hiding unpaid merchandise, matching multi-frame behavior indicating concealment.","latency_ms":2527.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The person is standing near a display area, facing the shelves and looking toward the entrance, with hands on hips in a relaxed posture. No visual evidence of picking up, holding, or concealing any item is present across the frames. The behavior aligns with normal browsing — possibly waiting or observing — and no concealment action (e.g., into bag/pocket/clothes) is observed. L1 event 'qty_spike' alone is insufficient without visual confirmation of theft.","latency_ms":2279.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen picking up an item, examining it briefly, and placing it into a shopping basket. There is no evidence of concealment or hiding the item on their body. The behavior aligns with normal shopping activity.","latency_ms":1742.5}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting039_x264__C_2__conceal__0","clip_id":"ucf_theft__Shoplifting039_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual is observed moving from the center of the store to the right-side shelf area, with their hand positioned at their hip (matching the L1 conceal event subtype of pocket) across sequential frames, and exits the frame after this action, consistent with hiding an unpaid item in their clothing.","latency_ms":2033.7,"agreement_hint":"keep_ok","center_ts":10.766666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting039_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__conceal__0&file=kf_00_9.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__conceal__0&file=kf_01_10.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__conceal__0&file=kf_02_11.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__conceal__0&file=kf_03_11.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The keyframes show a person walking through the store, but no clear concealment of merchandise into a bag, pocket, or clothing is visible. The L1 event suggests a concealment at the hip, but the visual evidence does not confirm this action across the frames.","latency_ms":1074.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual is observed moving from the center of the store to the right-side shelf area, with their hand positioned at their hip (matching the L1 conceal event subtype of pocket) across sequential frames, and exits the frame after this action, consistent with hiding an unpaid item in their clothing.","latency_ms":2033.7},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappearance (item vanishes from view) and high score (0.759), strongly indicates the person concealed an item in their pocket or clothing. The person's posture and movement toward the exit without proceeding to checkout support this. No visual of the item being placed in a bag or cart, but the 'pocket' subtype and high confidence in concealment align with 'conceal_unpaid'.","latency_ms":2583.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen concealing an item into their pocket (as indicated by the L1 event 'conceal' with subtype 'pocket'), which aligns with behavior consistent with shoplifting intent. The person's actions across the frames suggest an attempt to hide merchandise without paying.","latency_ms":1958.6}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting039_x264__C_2__qty_spike__1","clip_id":"ucf_theft__Shoplifting039_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Across sequential frames, the customer is seen moving items from a display area and concealing them under their clothing (torso/waist area) without any visible payment action, consistent with hiding unpaid merchandise. The L1 qty_spike event aligns with the observed multi-frame behavior of handling and concealing products.","latency_ms":3204.9,"agreement_hint":"keep_ok","center_ts":82.36666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting039_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__qty_spike__1&file=kf_00_81.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__qty_spike__1&file=kf_01_82.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__qty_spike__1&file=kf_02_82.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__qty_spike__1&file=kf_03_83.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a person standing near a display table and then walking toward the exit. No visual evidence of concealing merchandise into a bag, pocket, or clothing is visible. The L1 qty_spike event is a soft hint and not supported by clear concealment behavior in the provided keyframes.","latency_ms":1481.4},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the customer is seen moving items from a display area and concealing them under their clothing (torso/waist area) without any visible payment action, consistent with hiding unpaid merchandise. The L1 qty_spike event aligns with the observed multi-frame behavior of handling and concealing products.","latency_ms":3204.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The person is standing near a display with hands on hips, facing the entrance/exit area, and appears to be browsing or waiting. No visual evidence of picking up, holding, or concealing any merchandise. The L1 event 'qty_spike' is likely a false positive (e.g., due to motion detection or proxy signal), but without actual visual confirmation of item handling or concealment, this behavior aligns with normal browsing. No concealment action is observed across frames.","latency_ms":3609.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is seen picking up an item, holding it briefly, and examining it while standing near the checkout counter. There is no visible concealment into a bag, pocket, or clothing, and the behavior aligns with normal shopping activity rather than shoplifting intent.","latency_ms":2523.8}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_10__1","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The customer with dark hair in a white top is observed moving clothing from the rack and tucking it into the back of her jeans (under her clothing) across sequential frames, which constitutes hiding an unpaid product on her body.","latency_ms":2923.5,"agreement_hint":"keep_ok","center_ts":43.166666666666664,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__1&file=kf_00_42.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__1&file=kf_01_42.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__1&file=kf_02_43.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__1&file=kf_03_44.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show customers browsing and handling clothing on racks, with no visible concealment into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding unpaid merchandise.","latency_ms":1478.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer with dark hair in a white top is observed moving clothing from the rack and tucking it into the back of her jeans (under her clothing) across sequential frames, which constitutes hiding an unpaid product on her body.","latency_ms":2923.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing clothing racks, reaching for items, and appears to be examining or selecting garments in a normal shopping manner. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothes) or intent to steal. The L1 event 'qty_spike' with 'taken_proxy>=2' may reflect rapid item handling during selection, but without visible concealment, it remains consistent with browsing behavior.","latency_ms":2099.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is picking up and examining clothing items from the rack, which is consistent with normal shopping behavior. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames.","latency_ms":1515.5}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_10__conceal__3","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual in the white long-sleeve shirt repeatedly manipulates clothing near their torso, with multi-frame behavior showing actions consistent with hiding an item under their clothing, matching the L1 conceal event subtype of under_clothes.","latency_ms":3242.6,"agreement_hint":"keep_ok","center_ts":41.56666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__conceal__3&file=kf_00_40.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__conceal__3&file=kf_01_41.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__conceal__3&file=kf_02_41.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__conceal__3&file=kf_03_42.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action under clothes, and the multi-frame sequence shows a person in the foreground with a white top and dark hair whose body orientation and hand movements are consistent with hiding an item near the waistband or under clothing while browsing. The concealment is not fully visible due to occlusion, but the behavior aligns with the L1 conceal hint and the trajectory evidence of item disappearance.","latency_ms":1794.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the white long-sleeve shirt repeatedly manipulates clothing near their torso, with multi-frame behavior showing actions consistent with hiding an item under their clothing, matching the L1 conceal event subtype of under_clothes.","latency_ms":3242.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high trajectory score (0.6678) + co_disappear=1.0 across 6 frames strongly indicates concealment under clothes. The person's posture (bending, hand near waist/hip area) and the context of being in a clothing store support intent to hide merchandise without payment. No visible checkout or return actions occur.","latency_ms":2858.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen picking up and examining clothing items, which is consistent with normal shopping behavior. There is no visible concealment of merchandise into a bag, pocket, or under clothes across the frames.","latency_ms":2072.5}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_10__qty_spike__4","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The customer in the white top and jeans is observed moving clothing from the rack and positioning items under her lifted top (waist area) across consecutive frames, which constitutes hiding unpaid merchandise on her body. The L1 qty_spike event aligns with the multi-frame behavior of taking items to conceal them, matching the visual evidence of hiding.","latency_ms":2776.0,"agreement_hint":"keep_ok","center_ts":43.166666666666664,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__qty_spike__4&file=kf_00_42.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__qty_spike__4&file=kf_01_42.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__qty_spike__4&file=kf_02_43.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__qty_spike__4&file=kf_03_44.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The keyframes show customers browsing and handling clothing on racks in a retail store. No clear concealment into bags, pockets, or clothing is visible across the frames. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding merchandise.","latency_ms":1186.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer in the white top and jeans is observed moving clothing from the rack and positioning items under her lifted top (waist area) across consecutive frames, which constitutes hiding unpaid merchandise on her body. The L1 qty_spike event aligns with the multi-frame behavior of taking items to conceal them, matching the visual evidence of hiding.","latency_ms":2776.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing clothes, reaching into a rack, picking up items, and examining them — typical shopping behavior. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothing) or hiding actions across frames. The L1 'qty_spike' event may reflect rapid item handling during browsing, not theft. No intent to steal is visible.","latency_ms":2088.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is seen picking up and examining clothing items from the rack, which is consistent with normal shopping behavior. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames.","latency_ms":2199.3}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_29__3","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual in the white top and jeans is seen moving a clothing item from the rack and concealing it inside the back of their pants (under clothing) across sequential frames, which matches the definition of hiding unpaid merchandise. The L1 qty_spike event aligns with the observed action of taking an item to conceal, supporting the visual evidence.","latency_ms":3317.8,"agreement_hint":"keep_ok","center_ts":157.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__3&file=kf_00_156.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__3&file=kf_01_157.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__3&file=kf_02_157.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__3&file=kf_03_158.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks. No clear concealment into bags, pockets, or clothing is visible across the sequence. The L1 qty_spike signal is a soft hint and lacks matching visual evidence of hiding merchandise.","latency_ms":1415.0},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the white top and jeans is seen moving a clothing item from the rack and concealing it inside the back of their pants (under clothing) across sequential frames, which matches the definition of hiding unpaid merchandise. The L1 qty_spike event aligns with the observed action of taking an item to conceal, supporting the visual evidence.","latency_ms":3317.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customers are actively browsing clothing racks, picking up items, examining them, and placing them back or holding them while shopping—consistent with normal retail behavior. No visual evidence of concealment (e.g., putting items into bags/pockets/clothes without paying) is observed across the frames. The L1 event 'qty_spike' with 'handheld_peak>=2' may reflect brief handling but does not indicate theft without additional concealment cues.","latency_ms":2309.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are seen picking up, holding, and examining clothing items in a typical shopping manner. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames. The behavior aligns with normal browsing and product evaluation.","latency_ms":2214.3}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_29__conceal__5","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual with dark hair and white top is observed moving a clothing item toward their underclothes (midsection) across sequential frames, consistent with hiding an unpaid product under clothing, matching the L1 conceal event subtype of under_clothes.","latency_ms":2778.1,"agreement_hint":"keep_ok","center_ts":146.76666666666668,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__conceal__5&file=kf_00_145.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__conceal__5&file=kf_01_146.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__conceal__5&file=kf_02_147.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__conceal__5&file=kf_03_147.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action under clothes, and the multi-frame sequence shows a person in the foreground handling merchandise near their waistline, consistent with hiding unpaid items.","latency_ms":1489.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual with dark hair and white top is observed moving a clothing item toward their underclothes (midsection) across sequential frames, consistent with hiding an unpaid product under clothing, matching the L1 conceal event subtype of under_clothes.","latency_ms":2778.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 1.0) indicates the person likely concealed an item under clothing. The person’s posture—bending slightly, hand near waist/hip area, and holding a bag while standing close to others—supports concealment intent. No visual of the item being placed in a bag or pocket is seen, but the multi-frame behavior (dwell, co-disappear, and lack of visible re-emergence) strongly suggests unpaid concealment. This aligns with the rule that only steal/conceal_unpaid when visuals show concealment into bag/pocket/clothes or clear multi-frame hiding intent.","latency_ms":3463.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item under their clothing, which is consistent with concealment behavior. This action aligns with the L1 event 'conceal' and indicates an intent to hide unpaid merchandise.","latency_ms":1618.3}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_29__qty_spike__8","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"A woman in a white top and jeans is observed over multiple frames placing clothing items into her pants waistband, hiding them from view, which constitutes concealing unpaid merchandise. The L1 qty_spike event aligns with this multi-frame concealment behavior.","latency_ms":3892.8,"agreement_hint":"keep_ok","center_ts":157.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__qty_spike__8&file=kf_00_156.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__qty_spike__8&file=kf_01_157.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__qty_spike__8&file=kf_02_157.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__qty_spike__8&file=kf_03_158.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks. No clear concealment into bags, pockets, or clothing is visible. The L1 qty_spike event is a soft hint and not supported by visual evidence of hiding merchandise.","latency_ms":1299.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"A woman in a white top and jeans is observed over multiple frames placing clothing items into her pants waistband, hiding them from view, which constitutes concealing unpaid merchandise. The L1 qty_spike event aligns with this multi-frame concealment behavior.","latency_ms":3892.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The person is actively browsing clothing racks, picking up and examining items, and holding them visibly while standing near the rack. There is no visual evidence of concealment into bags, pockets, or under clothes. The 'qty_spike' L1 event may reflect multiple items being handled quickly during normal browsing (e.g., checking several garments), but without any indication of hiding or attempting to leave without paying, this remains within normal shopping behavior.","latency_ms":2171.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are seen picking up, holding, and examining clothing items in a typical shopping manner. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames. The behavior aligns with normal browsing and product evaluation.","latency_ms":2258.6}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_3__conceal__13","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual in the white top is observed moving a purple garment from a display rack and concealing it under their outer clothing at their hip, consistent with the L1 conceal event subtype of pocket/hip concealment, with multi-frame behavior showing the garment being hidden on their body rather than normal shopping activity.","latency_ms":3162.8,"agreement_hint":"keep_ok","center_ts":485.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_3__conceal__13&file=kf_00_484.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_3__conceal__13&file=kf_01_484.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_3__conceal__13&file=kf_02_485.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_3__conceal__13&file=kf_03_486.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the multi-frame sequence shows the person handling merchandise in a manner consistent with hiding it on their body rather than browsing or checking out.","latency_ms":1564.4},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the white top is observed moving a purple garment from a display rack and concealing it under their outer clothing at their hip, consistent with the L1 conceal event subtype of pocket/hip concealment, with multi-frame behavior showing the garment being hidden on their body rather than normal shopping activity.","latency_ms":3162.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' at hip level, and the trajectory analysis shows co-disappearance (item vanishes from view after interaction), dwell ratio of 1.0, and high model score (0.85). The person's behavior across frames shows them interacting with merchandise near the hip area, consistent with hiding an item in a pocket or under clothing, without placing it in a visible cart or basket. This aligns with 'conceal_unpaid' as defined: hiding product on the body with clear intent to avoid payment.","latency_ms":2901.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen picking up a purple garment and placing it into their bag, which aligns with the 'conceal' L1 event indicating intent to hide unpaid merchandise. The behavior across frames shows clear concealment into the bag.","latency_ms":2400.8}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_40__conceal__10","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual (P#40) is observed over multiple frames moving an item toward their hip pocket (consistent with the L1 conceal event subtype of pocket), with multi-frame behavior showing intent to hide the item on their body rather than browse or checkout.","latency_ms":3646.5,"agreement_hint":"keep_ok","center_ts":396.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_40__conceal__10&file=kf_00_395.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_40__conceal__10&file=kf_01_396.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_40__conceal__10&file=kf_02_396.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_40__conceal__10&file=kf_03_397.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the multi-frame sequence shows a person in the foreground interacting with merchandise in a manner consistent with hiding an item on their body.","latency_ms":1416.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#40) is observed over multiple frames moving an item toward their hip pocket (consistent with the L1 conceal event subtype of pocket), with multi-frame behavior showing intent to hide the item on their body rather than browse or checkout.","latency_ms":3646.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after interaction) and high model score (0.85), strongly indicates the person concealed an item in their pocket or clothing. The multi-frame behavior shows them interacting with merchandise near the hip area, consistent with hiding an unpaid item. No visual of payment or return to shelf is observed.","latency_ms":2528.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item into a bag or pocket area near their hip, consistent with concealment behavior. This action aligns with the L1 event 'conceal' and is supported by visual evidence across multiple frames.","latency_ms":2239.8}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_48__5","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The woman in the white top is seen holding a dark garment and moving it toward her body/back area across sequential frames, consistent with hiding an unpaid product, supported by the L1 qty_spike event indicating a potential take of multiple items.","latency_ms":2945.0,"agreement_hint":"keep_ok","center_ts":444.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__5&file=kf_00_443.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__5&file=kf_01_444.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__5&file=kf_02_444.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__5&file=kf_03_445.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks without any visible concealment into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1243.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The woman in the white top is seen holding a dark garment and moving it toward her body/back area across sequential frames, consistent with hiding an unpaid product, supported by the L1 qty_spike event indicating a potential take of multiple items.","latency_ms":2945.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.8,"agreement_hint":"keep_ok","rationale":"The customer (C#48) is seen browsing and then, in the final frames, appears to be placing an item into a bag or pocket while turning away from the rack—consistent with concealment behavior. The L1 event 'qty_spike' and 'taken_proxy>=2' support multiple items being handled, and the multi-frame sequence shows intent to hide merchandise without paying. No visible checkout or return action occurs.","latency_ms":2025.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen holding a garment close to their body and appears to be concealing it under their top or into their bag, consistent with shoplifting intent across multiple frames.","latency_ms":2868.3}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_48__conceal__11","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual (P#48) is observed over multiple frames moving their hand toward their hip pocket (per L1 event subtype: pocket, zone: hip) while handling clothing, consistent with hiding an unpaid item on their person, matching the conceal_unpaid criteria of hiding merchandise in a pocket/on the body.","latency_ms":4239.4,"agreement_hint":"keep_ok","center_ts":439.96666666666664,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__conceal__11&file=kf_00_438.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__conceal__11&file=kf_01_439.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__conceal__11&file=kf_02_440.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__conceal__11&file=kf_03_441.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The keyframes show a woman in a white top and blue jeans moving through the store and then reaching toward her waistband/hip area in a manner consistent with concealing an item, matching the L1 conceal event (subtype: pocket, zone: hip). The multi-frame sequence captures the concealment motion rather than mere browsing.","latency_ms":1557.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#48) is observed over multiple frames moving their hand toward their hip pocket (per L1 event subtype: pocket, zone: hip) while handling clothing, consistent with hiding an unpaid item on their person, matching the conceal_unpaid criteria of hiding merchandise in a pocket/on the body.","latency_ms":4239.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with high trajectory score (0.7429) and co-disappear signal (1.0), indicates the person likely concealed an item in their hip/pocket area. The person's body language—hand moving toward the hip area while walking away from the rack—and the context of being in a clothing store support this. No visual evidence shows the item being placed in a bag or returned to a shelf, and the risk score is low but the meta data strongly suggests concealment intent. This aligns with 'conceal_unpaid' as defined: hiding merchandise on the body without payment.","latency_ms":3013.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their front pocket, which is a clear act of concealment. This behavior aligns with the 'conceal_unpaid' label as it indicates an intent to hide merchandise without paying.","latency_ms":2743.8}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_48__qty_spike__12","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The woman in the white top is seen holding a dark bag and moving toward her torso/side, with multi-frame behavior showing she is concealing an item (consistent with hiding unpaid merchandise) rather than normal shopping actions like examining or placing items in a cart. The L1 qty_spike event aligns with this observed concealment behavior.","latency_ms":2825.8,"agreement_hint":"keep_ok","center_ts":444.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__qty_spike__12&file=kf_00_443.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__qty_spike__12&file=kf_01_444.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__qty_spike__12&file=kf_02_444.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__qty_spike__12&file=kf_03_445.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The keyframes show customers browsing and handling clothing on racks without any visible concealment into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding merchandise.","latency_ms":1783.8},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The woman in the white top is seen holding a dark bag and moving toward her torso/side, with multi-frame behavior showing she is concealing an item (consistent with hiding unpaid merchandise) rather than normal shopping actions like examining or placing items in a cart. The L1 qty_spike event aligns with this observed concealment behavior.","latency_ms":2825.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#48) is seen browsing and then, in the final frames, appears to be placing an item into a bag or pocket while turning away from the rack—consistent with concealment behavior. The L1 event 'qty_spike' with taken_proxy=2 and take_burst>=2/25s supports multiple items being handled quickly, and the visual sequence shows her moving toward the exit with a bag that may contain unpaid merchandise. No clear checkout or return action is observed.","latency_ms":2945.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person in the blue top is seen placing an item into her bag or under her clothing while browsing, which indicates an intent to conceal unpaid merchandise. This behavior aligns with shoplifting intent across multiple frames.","latency_ms":1846.4}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_4__0","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The customer in the white top is observed moving an item toward their torso/under their clothing across sequential frames, consistent with hiding an unpaid product, matching the L1 event's handheld peak signal indicating multiple items handled with intent to conceal.","latency_ms":2844.2,"agreement_hint":"keep_ok","center_ts":13.966666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__0&file=kf_00_12.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__0&file=kf_01_13.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__0&file=kf_02_14.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__0&file=kf_03_15.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks; no concealment into a bag, pocket, or clothing is visible. The L1 qty_spike is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1770.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer in the white top is observed moving an item toward their torso/under their clothing across sequential frames, consistent with hiding an unpaid product, matching the L1 event's handheld peak signal indicating multiple items handled with intent to conceal.","latency_ms":2844.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customers are actively browsing clothing racks, picking up items, examining them, and placing them back on the rack or holding them while shopping. There is no visual evidence of concealment (e.g., putting items into bags, pockets, or under clothes) or intent to steal. The L1 event 'qty_spike' with 'handheld_peak>=2' may reflect multiple items being held briefly for inspection, which is consistent with normal browsing behavior in a retail setting.","latency_ms":2491.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are seen browsing through clothing items on the racks, picking up and examining garments. There is no visible concealment of merchandise into bags, pockets, or under clothes. The behavior appears consistent with normal shopping activity.","latency_ms":1793.9}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_4__conceal__0","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual is observed moving an item toward their hip pocket across sequential frames, consistent with hiding an unpaid item on their person, matching the L1 conceal event subtype of pocket concealment.","latency_ms":2411.2,"agreement_hint":"keep_ok","center_ts":5.566666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__conceal__0&file=kf_00_4.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__conceal__0&file=kf_01_5.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__conceal__0&file=kf_02_5.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__conceal__0&file=kf_03_6.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The keyframes show a person in the center of the frame with a dark shoulder bag. Across the sequence, they appear to be interacting with merchandise while their body and bag are positioned in a way that suggests concealing an item, consistent with the L1 conceal event (subtype: pocket, zone: hip). The multi-frame behavior indicates hiding intent rather than normal browsing.","latency_ms":2055.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual is observed moving an item toward their hip pocket across sequential frames, consistent with hiding an unpaid item on their person, matching the L1 conceal event subtype of pocket concealment.","latency_ms":2411.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view) and high score (0.6748), indicates the person is hiding an item on their person. The multi-frame behavior shows the individual moving with a bag or item near their hip, consistent with concealment into pocket or under clothing. No payment or return to shelf is observed, supporting unpaid concealment intent.","latency_ms":2614.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their waistband/pocket area, consistent with concealing unpaid merchandise. This behavior aligns with the 'conceal' L1 event and is supported by visual evidence across multiple frames.","latency_ms":1860.6}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_4__qty_spike__1","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The customer in the white top is observed moving an item toward their torso/under their clothing across sequential frames, consistent with hiding an unpaid product, supported by the L1 qty_spike event indicating a quantity change associated with this activity.","latency_ms":2453.5,"agreement_hint":"keep_ok","center_ts":13.966666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__qty_spike__1&file=kf_00_12.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__qty_spike__1&file=kf_01_13.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__qty_spike__1&file=kf_02_14.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__qty_spike__1&file=kf_03_15.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks; no concealment into bags, pockets, or clothing is visible. The L1 qty_spike is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":935.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer in the white top is observed moving an item toward their torso/under their clothing across sequential frames, consistent with hiding an unpaid product, supported by the L1 qty_spike event indicating a quantity change associated with this activity.","latency_ms":2453.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customers are actively browsing clothing racks, picking up items, examining them, and placing them back or holding them while shopping—consistent with normal retail behavior. No visual evidence of concealment (e.g., putting items into bags/pockets/clothes) or intent to steal is observed across the frames. The L1 event 'qty_spike' is likely due to multiple items being handled in quick succession during normal browsing (e.g., trying on or comparing), not theft.","latency_ms":2496.2},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are seen examining and handling clothing items on the racks, consistent with normal shopping behavior. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames.","latency_ms":2091.4}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_5__conceal__6","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual (P#5) is holding multiple garments and moving toward their hip pocket (per L1 event subtype 'pocket'), with multi-frame behavior showing the action of positioning items to conceal them on their person, consistent with hiding unpaid merchandise.","latency_ms":3190.3,"agreement_hint":"keep_ok","center_ts":148.76666666666668,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__conceal__6&file=kf_00_147.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__conceal__6&file=kf_01_148.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__conceal__6&file=kf_02_149.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__conceal__6&file=kf_03_149.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the multi-frame sequence shows a person handling merchandise in a manner consistent with hiding it on their body rather than openly carrying it.","latency_ms":1825.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#5) is holding multiple garments and moving toward their hip pocket (per L1 event subtype 'pocket'), with multi-frame behavior showing the action of positioning items to conceal them on their person, consistent with hiding unpaid merchandise.","latency_ms":3190.3},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' at hip zone, and the trajectory analysis shows co-disappear (item vanishes from view after interaction) with high score (0.65) and 100% dwell ratio. The person's posture and hand motion toward the hip area across multiple frames suggest hiding an item in a pocket or waistband, consistent with concealment intent. No payment or return to shelf is observed.","latency_ms":2657.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is seen picking up and examining clothing items, placing them into a shopping basket, and interacting with the merchandise in a manner consistent with normal shopping behavior. There is no visible concealment of unpaid items into bags, pockets, or under clothes.","latency_ms":2064.0}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_71__6","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Across the sequence of frames, the customer in the turquoise shirt is manipulating clothing from the rack while their personal bag is positioned at their side, with visual evidence of movement that suggests placing an item into the bag, consistent with hiding unpaid merchandise. The L1 qty_spike event aligns with this observed multi-frame behavior of concealing an item.","latency_ms":3151.3,"agreement_hint":"keep_ok","center_ts":665.9666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__6&file=kf_00_664.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__6&file=kf_01_665.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__6&file=kf_02_666.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__6&file=kf_03_667.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The person is seen browsing clothing racks and holding items near a bag, but there is no clear visual evidence of concealing unpaid merchandise into a bag, pocket, or clothing. The L1 qty_spike event is a soft hint and not sufficient for a concealment determination.","latency_ms":1461.0},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across the sequence of frames, the customer in the turquoise shirt is manipulating clothing from the rack while their personal bag is positioned at their side, with visual evidence of movement that suggests placing an item into the bag, consistent with hiding unpaid merchandise. The L1 qty_spike event aligns with this observed multi-frame behavior of concealing an item.","latency_ms":3151.3},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is browsing clothing racks, standing in front of a rack and appearing to examine items. There is no visual evidence of concealment (e.g., putting items into bag/pocket/clothes) or hiding behavior across frames. The L1 event 'qty_spike' with 'handheld_peak>=2' may indicate brief handling but is consistent with normal shopping (e.g., picking up multiple items to compare), not theft. No intent to steal is visible.","latency_ms":3486.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen browsing through clothing items on the rack, picking up and examining garments. There is no visible concealment of merchandise into a bag, pocket, or under clothes across the frames. The behavior aligns with normal shopping activity.","latency_ms":1982.4}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_71__conceal__14","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The customer is repeatedly reaching into their open bag while browsing clothing racks, with L1 event data indicating a concealment event under clothes, consistent with multi-frame behavior of hiding an unpaid item.","latency_ms":2743.9,"agreement_hint":"keep_ok","center_ts":662.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__conceal__14&file=kf_00_661.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__conceal__14&file=kf_01_662.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__conceal__14&file=kf_02_662.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__conceal__14&file=kf_03_663.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The keyframes show a person browsing clothing racks with a shoulder bag, but no clear concealment action (e.g., placing merchandise into the bag or under clothes) is visible across the frames. The L1 conceal hint is not corroborated by visual evidence.","latency_ms":1465.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer is repeatedly reaching into their open bag while browsing clothing racks, with L1 event data indicating a concealment event under clothes, consistent with multi-frame behavior of hiding an unpaid item.","latency_ms":2743.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 1.0) indicates the person likely concealed an item under their clothes. The person is standing near a clothing rack, and while no explicit visual of the concealment is seen in these frames, the consistent context and high-confidence L1 signal support concealment intent. No payment or visible return to shelf occurs, and the behavior aligns with shoplifting via under-clothes concealment.","latency_ms":2903.3},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item under their clothing, which is a clear concealment behavior indicating intent to shoplift. This is supported by the L1 event 'conceal' and the visual evidence of the item being hidden.","latency_ms":1812.0}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_71__qty_spike__15","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Across sequential frames, the customer uses their open hand to move clothing on the rack while their large shoulder bag is positioned at their side, with visual evidence of the hand moving toward the bag area consistent with hiding an unpaid item; the L1 qty_spike event provides supporting context for potential concealment, matching multi-frame behavior of hiding merchandise in a personal bag.","latency_ms":3954.2,"agreement_hint":"keep_ok","center_ts":665.9666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__qty_spike__15&file=kf_00_664.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__qty_spike__15&file=kf_01_665.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__qty_spike__15&file=kf_02_666.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__qty_spike__15&file=kf_03_667.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a shopper browsing clothing racks with a shoulder bag; no visible concealment into bag, pockets, or clothing is evident across the sequence. The L1 qty_spike is a soft hint only and lacks matching visual concealment evidence.","latency_ms":1122.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the customer uses their open hand to move clothing on the rack while their large shoulder bag is positioned at their side, with visual evidence of the hand moving toward the bag area consistent with hiding an unpaid item; the L1 qty_spike event provides supporting context for potential concealment, matching multi-frame behavior of hiding merchandise in a personal bag.","latency_ms":3954.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is browsing clothing racks, standing in front of merchandise, and appears to be examining items. There is no visual evidence of concealment (e.g., putting items into bag/pocket/clothes) or hiding behavior across the frames. The L1 event 'qty_spike' with 'handheld_peak>=2' may indicate brief handling but does not confirm theft without visible concealment. Since the person remains in the open, interacting with items normally (e.g., looking, possibly touching), this falls under normal shopping behavior.","latency_ms":3364.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is seen browsing through clothing items on the rack, picking up and examining garments. There is no visible concealment of merchandise into a bag, pocket, or under clothes. The behavior appears consistent with normal shopping activity.","latency_ms":1965.9}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_87__7","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Across the sequence of frames, the customer is observed interacting with clothing items near the rack, moving toward her patterned bag, and positioning items in a manner consistent with hiding unpaid merchandise in her bag, which aligns with multi-frame behavior indicating concealment of products.","latency_ms":3572.6,"agreement_hint":"keep_ok","center_ts":810.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__7&file=kf_00_809.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__7&file=kf_01_810.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__7&file=kf_02_810.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__7&file=kf_03_811.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The person is seen browsing and handling clothing on racks without any visible concealment into a bag, pocket, or clothing. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1384.0},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across the sequence of frames, the customer is observed interacting with clothing items near the rack, moving toward her patterned bag, and positioning items in a manner consistent with hiding unpaid merchandise in her bag, which aligns with multi-frame behavior indicating concealment of products.","latency_ms":3572.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#87) is seen repeatedly interacting with clothing items in a manner suggesting concealment: she bends down near the floor, reaches into a lower rack area where items are less visible, and appears to manipulate items while partially obscured by her body and bag. Her posture and actions—especially the repeated bending and reaching into low areas without placing items in a visible cart or basket—align with typical shoplifting behavior of hiding merchandise on the person. The L1 event 'qty_spike' and 'taken_proxy>=2' support this, but the visual evidence of concealment (e.g., hiding items under clothes or in bag) is consistent across frames. No clear checkout or return to shelf is observed.","latency_ms":3232.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen picking up a red garment and placing it into her bag, which indicates an intent to conceal unpaid merchandise. This behavior aligns with the 'conceal_unpaid' label as she actively hides the item from view.","latency_ms":1893.5}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_87__conceal__16","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Multi-frame visual evidence shows the customer moving an item toward her hip pocket (consistent with the L1 conceal event subtype of pocket), with trajectory and model score supporting hiding an unpaid product on her person rather than normal shopping actions.","latency_ms":3366.1,"agreement_hint":"keep_ok","center_ts":807.5666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__conceal__16&file=kf_00_806.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__conceal__16&file=kf_01_807.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__conceal__16&file=kf_02_807.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__conceal__16&file=kf_03_808.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The person is seen moving through the store and placing an item into a bag/pocket area at the hip, consistent with concealment behavior across multiple frames.","latency_ms":1467.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Multi-frame visual evidence shows the customer moving an item toward her hip pocket (consistent with the L1 conceal event subtype of pocket), with trajectory and model score supporting hiding an unpaid product on her person rather than normal shopping actions.","latency_ms":3366.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (1.0) and high model score (0.85), indicates the person likely concealed an item in their pocket or waist area. The person's posture and movement near the clothing racks, along with the absence of the item in visible hands or cart, support concealment intent rather than browsing or checkout. No payment is observed, and the risk score is low but not zero, suggesting the act may be subtle but still identifiable as concealment.","latency_ms":2807.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item into her bag, which is consistent with concealment behavior. The L1 event 'conceal' further supports this inference, as it indicates a potential attempt to hide unpaid merchandise.","latency_ms":2311.6}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_87__qty_spike__17","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Across the sequence of frames, the customer is observed taking a red garment from the clothing rack and moving it toward her large patterned bag, consistent with hiding an unpaid product in her bag. The L1 qty_spike event aligns with the multi-frame action of taking an item to conceal it, matching the visual evidence of hiding merchandise.","latency_ms":3449.5,"agreement_hint":"keep_ok","center_ts":810.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__qty_spike__17&file=kf_00_809.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__qty_spike__17&file=kf_01_810.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__qty_spike__17&file=kf_02_810.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__qty_spike__17&file=kf_03_811.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The person is seen browsing and handling clothing on racks without any visible concealment into a bag, pocket, or clothing. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1491.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across the sequence of frames, the customer is observed taking a red garment from the clothing rack and moving it toward her large patterned bag, consistent with hiding an unpaid product in her bag. The L1 qty_spike event aligns with the multi-frame action of taking an item to conceal it, matching the visual evidence of hiding merchandise.","latency_ms":3449.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#87) is seen repeatedly interacting with merchandise in a way that suggests concealment: she bends down near the floor, reaches into a low clothing rack, and appears to retrieve items without placing them in a visible basket or cart. Her body posture and hand movements—particularly reaching under or behind racks while keeping her back partially turned—indicate an intent to hide items on her person (e.g., in her bag or clothing). The L1 event 'qty_spike' with 'taken_proxy>=2' and 'take_burst>=2/25s' supports rapid, repeated handling of items, consistent with shoplifting behavior rather than normal browsing. No payment or checkout is observed, and no items are visibly placed in a cart. This aligns with 'conceal_unpaid' as defined: hiding items on the body via multi-frame behavior.","latency_ms":5520.3},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen picking up a red garment and placing it into their bag, which indicates an intent to conceal unpaid merchandise. This behavior aligns with shoplifting intent across multiple frames.","latency_ms":1757.9}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_8__conceal__2","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual (P#8) is observed over multiple frames moving an item toward their hip pocket, consistent with the L1 conceal event subtype of pocket concealment, showing multi-frame behavior of hiding an unpaid item on their person.","latency_ms":3069.5,"agreement_hint":"keep_ok","center_ts":25.966666666666665,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__conceal__2&file=kf_00_24.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__conceal__2&file=kf_01_25.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__conceal__2&file=kf_02_26.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__conceal__2&file=kf_03_27.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a conceal action at the hip/pocket with a high model score, and the keyframes show the person in the act of handling merchandise near their body in a manner consistent with concealment. While the visual evidence is not perfectly clear, the combination of the L1 event and the observed behavior supports a concealment determination.","latency_ms":1217.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#8) is observed over multiple frames moving an item toward their hip pocket, consistent with the L1 conceal event subtype of pocket concealment, showing multi-frame behavior of hiding an unpaid item on their person.","latency_ms":3069.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view) and high model score (0.85), strongly indicates the person is concealing an item in their pocket or clothing. The multi-frame behavior shows the person holding items while moving toward the hip area, consistent with hiding merchandise without payment. This aligns with the definition of 'conceal_unpaid' — hiding a product on the body — not just browsing.","latency_ms":3059.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen making a deliberate motion to conceal an item into their pocket, consistent with shoplifting behavior. The L1 event 'conceal' further supports this inference.","latency_ms":2068.8}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting041_x264__C_10__conceal__2","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event indicates a conceal event under clothes, with model score 0.85 and subtype 'under_clothes'; visual evidence across frames shows the individual in the pink outfit adjusting their upper body/scarf area consistent with hiding an item under clothing, matching the concealment behavior.","latency_ms":2897.5,"agreement_hint":"keep_ok","center_ts":100.36666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_10__conceal__2&file=kf_00_99.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_10__conceal__2&file=kf_01_100.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_10__conceal__2&file=kf_02_100.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_10__conceal__2&file=kf_03_101.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.4,"agreement_hint":"uncertain","rationale":"The L1 event suggests concealment under clothes, but the keyframes show only people standing and browsing; no clear visual evidence of hiding merchandise on the body is visible across the frames.","latency_ms":1360.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a conceal event under clothes, with model score 0.85 and subtype 'under_clothes'; visual evidence across frames shows the individual in the pink outfit adjusting their upper body/scarf area consistent with hiding an item under clothing, matching the concealment behavior.","latency_ms":2897.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high trajectory score (0.59) + dwell ratio (0.83) indicates sustained, suspicious behavior near the body. The person (C#10, P#10) is standing at the counter while holding an item up near their head/shoulder area for multiple frames — a posture consistent with hiding an item under clothing or in a bag not visible to camera. No payment occurs, and no clear return to shelf or cart is observed. This matches the definition of 'conceal_unpaid' where concealment into clothing is inferred from multi-frame behavior and context, despite lack of direct visual proof of the item being hidden.","latency_ms":3515.4},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and the visual evidence of a person placing an item under their clothing strongly indicate intent to steal by concealing unpaid merchandise.","latency_ms":2046.4}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting041_x264__C_11__0","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Multi-frame behavior shows the individual in the pink outfit moving items toward their body, with actions consistent with hiding unpaid merchandise, supported by the L1 qty_spike event indicating an unusual number of items were taken from the shelf area.","latency_ms":3187.1,"agreement_hint":"keep_ok","center_ts":137.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__0&file=kf_00_136.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__0&file=kf_01_137.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__0&file=kf_02_137.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__0&file=kf_03_138.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and moving through the store; no clear concealment into bag, pocket, or clothing is visible across the sequence.","latency_ms":1150.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Multi-frame behavior shows the individual in the pink outfit moving items toward their body, with actions consistent with hiding unpaid merchandise, supported by the L1 qty_spike event indicating an unusual number of items were taken from the shelf area.","latency_ms":3187.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person in maroon (C#11) is seen moving toward the exit while holding an item close to their body, and then appears to duck or turn quickly near the doorway—consistent with concealing merchandise under clothing or into a bag. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, and the multi-frame behavior shows intent to hide rather than return or pay. No visible checkout or return occurs.","latency_ms":2428.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are at a checkout counter, with one person appearing to pay or complete a transaction while the other waits nearby. There is no visible concealment of merchandise into bags, pockets, or clothing, and their behavior aligns with typical checkout activity.","latency_ms":1699.8}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting041_x264__C_11__conceal__3","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Visual evidence across frames shows a person placing an item into a pocket (consistent with the L1 conceal event subtype of pocket) while moving toward the exit, with multi-frame behavior indicating hiding an unpaid item rather than normal shopping or checkout.","latency_ms":3198.0,"agreement_hint":"keep_ok","center_ts":124.76666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__conceal__3&file=kf_00_123.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__conceal__3&file=kf_01_124.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__conceal__3&file=kf_02_125.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__conceal__3&file=kf_03_125.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The keyframes show individuals near a counter with bags, but no clear concealment of unpaid merchandise into pockets or clothing is visible. The L1 conceal event is a soft hint, but visual evidence does not confirm shoplifting intent.","latency_ms":1637.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Visual evidence across frames shows a person placing an item into a pocket (consistent with the L1 conceal event subtype of pocket) while moving toward the exit, with multi-frame behavior indicating hiding an unpaid item rather than normal shopping or checkout.","latency_ms":3198.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (product vanishing from view after interaction) and dwell ratio of 1.0, strongly indicates concealment. The person in the pink dress is at the counter, and the visual flow suggests they placed an item into a pocket or under clothing near the hip area—consistent with multi-frame concealment intent. No payment is observed, and the risk score, though low, aligns with the soft signal. This meets the criteria for 'conceal_unpaid' as defined: hiding on the body without visible checkout.","latency_ms":3176.4},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The person is at the checkout counter, interacting with the cashier and placing items into a shopping bag. There is no evidence of concealment or hiding unpaid merchandise. The behavior aligns with normal checkout procedures.","latency_ms":2201.0}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting041_x264__C_11__qty_spike__4","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Multi-frame behavior shows the customer in the pink dress moving items toward her body, with actions consistent with hiding unpaid merchandise, supported by the L1 qty_spike event indicating a quantity change that aligns with concealment intent across the sequence of frames.","latency_ms":3784.6,"agreement_hint":"keep_ok","center_ts":137.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__qty_spike__4&file=kf_00_136.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__qty_spike__4&file=kf_01_137.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__qty_spike__4&file=kf_02_137.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__qty_spike__4&file=kf_03_138.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and moving through the store; no clear concealment into bag, pocket, or clothing is visible across the sequence. The L1 qty_spike is a soft hint only and lacks matching visual evidence of hiding merchandise.","latency_ms":1958.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Multi-frame behavior shows the customer in the pink dress moving items toward her body, with actions consistent with hiding unpaid merchandise, supported by the L1 qty_spike event indicating a quantity change that aligns with concealment intent across the sequence of frames.","latency_ms":3784.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person in maroon (C#11) is seen moving toward the exit while holding an item close to their body, and then appears to duck or turn quickly near the doorway—consistent with concealing merchandise under clothing or into a bag. The L1 event 'qty_spike' with multiple takes and handheld peak supports this intent, and no payment or return action is observed. The behavior across frames shows clear concealment intent rather than browsing or checkout.","latency_ms":2752.3},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are at a checkout counter, with one person appearing to be in the process of paying or handing over items. There is no visible concealment of merchandise into bags, pockets, or under clothing. The behavior aligns with normal checkout activity.","latency_ms":1687.7}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting041_x264__C_13__conceal__6","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The woman in the maroon sari is seen moving an item toward her hip pocket across sequential frames, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior showing intent to hide the unpaid item on her person.","latency_ms":2422.1,"agreement_hint":"keep_ok","center_ts":360.76666666666665,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__conceal__6&file=kf_00_359.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__conceal__6&file=kf_01_360.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__conceal__6&file=kf_02_361.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__conceal__6&file=kf_03_361.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a conceal action at the hip/pocket with a model score of 0.85, and the keyframes show a person in a maroon outfit standing near a counter with items, consistent with hiding merchandise on the body.","latency_ms":3158.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The woman in the maroon sari is seen moving an item toward her hip pocket across sequential frames, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior showing intent to hide the unpaid item on her person.","latency_ms":2422.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after approach) and high model score (0.85), strongly suggests the person concealed an item in their pocket or clothing. The multi-frame behavior shows the person standing near the counter, then turning away while holding something near their hip area—consistent with hiding merchandise. No payment is observed, and no clear return to shelf or cart placement occurs. This meets the criteria for 'conceal_unpaid' as defined: hiding product on body without visible payment intent.","latency_ms":3111.4},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is standing at a checkout counter with items placed on the counter, indicating they are in the process of paying for their purchases. There is no evidence of concealment or hiding of merchandise.","latency_ms":1692.1}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting041_x264__C_3__conceal__1","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual (P#3) is observed moving an item toward their hip pocket across sequential frames, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior indicating hiding an unpaid product rather than normal shopping actions.","latency_ms":2842.4,"agreement_hint":"keep_ok","center_ts":24.766666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_3__conceal__1&file=kf_00_23.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_3__conceal__1&file=kf_01_24.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_3__conceal__1&file=kf_02_25.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_3__conceal__1&file=kf_03_25.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show a person in a pink outfit with a white bag near the hip area, consistent with hiding merchandise. While the visual evidence is not perfectly clear, the multi-frame behavior and L1 hint support concealment.","latency_ms":1554.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#3) is observed moving an item toward their hip pocket across sequential frames, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior indicating hiding an unpaid product rather than normal shopping actions.","latency_ms":2842.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (product vanishes from view after interaction) and high model score (0.85), strongly indicates the person concealed an item in their pocket or clothing. The multi-frame behavior shows the individual interacting with shelves, then moving away with no visible payment, supporting concealment intent. No clear checkout or return to shelf is observed.","latency_ms":2451.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen reaching up to a high shelf and appears to be placing an item into her pocket or bag, consistent with concealment behavior. This action aligns with the L1 event 'conceal' and suggests intent to shoplift.","latency_ms":2691.1}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting041_x264__C_7__1","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual in the maroon top is seen moving items toward a white bag across consecutive frames, with actions consistent with hiding unpaid merchandise in the bag, matching the definition of concealment of unpaid items.","latency_ms":2300.3,"agreement_hint":"keep_ok","center_ts":173.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__1&file=kf_00_172.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__1&file=kf_01_173.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__1&file=kf_02_173.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__1&file=kf_03_174.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a person holding a white bag and standing near a counter with items, but there is no clear visual evidence of concealing unpaid merchandise into a bag, pocket, or clothing. The behavior appears consistent with normal shopping or carrying a personal bag.","latency_ms":1434.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the maroon top is seen moving items toward a white bag across consecutive frames, with actions consistent with hiding unpaid merchandise in the bag, matching the definition of concealment of unpaid items.","latency_ms":2300.3},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#7) is seen holding a white bag and then appears to place an item into it while standing near the counter. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, and the behavior of placing something into the bag without proceeding to checkout indicates concealment intent. The person’s posture and movement toward the bag, combined with the context of being near the counter but not paying, support shoplifting intent. No clear payment or return action is observed.","latency_ms":2280.3},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the maroon shirt is seen placing an item into their bag, which is a clear act of concealment. This behavior aligns with shoplifting intent as the item is not visibly placed into a shopping cart or basket for checkout.","latency_ms":2273.1}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting041_x264__C_7__conceal__0","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual in the blue top is observed over consecutive frames moving an item toward their hip pocket (consistent with the L1 conceal event subtype of pocket), showing multi-frame behavior of hiding an unpaid product on their person.","latency_ms":2859.8,"agreement_hint":"keep_ok","center_ts":15.566666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__conceal__0&file=kf_00_14.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__conceal__0&file=kf_01_15.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__conceal__0&file=kf_02_15.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__conceal__0&file=kf_03_16.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.4,"agreement_hint":"uncertain","rationale":"The L1 event suggests a concealment into a pocket at the hip, but the provided keyframes show only general store activity with people browsing and holding items. No clear visual evidence of hiding merchandise in clothing or a bag is visible across the frames.","latency_ms":1578.8},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the blue top is observed over consecutive frames moving an item toward their hip pocket (consistent with the L1 conceal event subtype of pocket), showing multi-frame behavior of hiding an unpaid product on their person.","latency_ms":2859.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with the person's posture (bending slightly toward the counter while holding a child), suggests an attempt to hide an item in their clothing or pocket. The multi-frame context shows no clear payment action, and the person is not visibly placing items into a cart or basket. The high model score (0.85) and legacy streak (5) support this interpretation despite low trajectory evidence.","latency_ms":2778.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is at a checkout counter, interacting with the cashier and appears to be in the process of paying for items. There is no visible concealment or intent to hide merchandise.","latency_ms":1801.8}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting041_x264__C_7__qty_spike__5","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Across sequential frames, the individual in the maroon top is seen moving items toward their white bag, with actions consistent with hiding unpaid merchandise into the bag rather than normal shopping activity. The L1 qty_spike event aligns with this observed behavior of transferring items to a bag without visible checkout activity.","latency_ms":3093.6,"agreement_hint":"keep_ok","center_ts":173.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__qty_spike__5&file=kf_00_172.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__qty_spike__5&file=kf_01_173.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__qty_spike__5&file=kf_02_173.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__qty_spike__5&file=kf_03_174.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a person holding a white bag and interacting with merchandise at a counter, but there is no clear visual evidence of concealing unpaid items into pockets, clothing, or a personal bag. The behavior appears consistent with normal shopping or browsing.","latency_ms":1362.8},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the individual in the maroon top is seen moving items toward their white bag, with actions consistent with hiding unpaid merchandise into the bag rather than normal shopping activity. The L1 qty_spike event aligns with this observed behavior of transferring items to a bag without visible checkout activity.","latency_ms":3093.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#7) is seen holding a white bag and repeatedly reaching toward the counter area while another person stands nearby. The L1 event 'qty_spike' with 'taken_proxy>=2' suggests multiple items were taken, and the behavior of lingering near the counter without placing items in a cart or proceeding to checkout indicates intent to conceal unpaid merchandise. The white bag appears to be used for hiding items, consistent with concealment behavior across frames.","latency_ms":3008.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the maroon top is seen placing an item into their bag, which is a clear act of concealment. This behavior aligns with shoplifting intent as they attempt to hide unpaid merchandise.","latency_ms":1617.9}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"zenodo_theft__main220_Trim5__C_1__conceal__0","clip_id":"zenodo_theft__main220_Trim5","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The customer is seen moving an item from the shelf toward his hip pocket (as indicated by L1 conceal event subtype pocket) across sequential frames, hiding the item from view rather than placing it into the shopping basket, consistent with concealing unpaid merchandise.","latency_ms":2790.8,"agreement_hint":"keep_ok","center_ts":1.5666666666666667,"corpus":"zenodo","media_url":null,"playable":false,"keyframe_urls":["/api/path1_case_keyframe?case_id=zenodo_theft__main220_Trim5__C_1__conceal__0&file=kf_00_0.43s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main220_Trim5__C_1__conceal__0&file=kf_01_1.20s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main220_Trim5__C_1__conceal__0&file=kf_02_1.93s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main220_Trim5__C_1__conceal__0&file=kf_03_2.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person is seen holding a shopping basket while reaching toward the shelf, and the L1 event indicates a concealment action into a pocket at the hip. The multi-frame sequence shows the person moving through the aisle with the basket, consistent with hiding merchandise rather than normal browsing or checkout.","latency_ms":1373.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer is seen moving an item from the shelf toward his hip pocket (as indicated by L1 conceal event subtype pocket) across sequential frames, hiding the item from view rather than placing it into the shopping basket, consistent with concealing unpaid merchandise.","latency_ms":2790.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' and zone 'hip', supported by trajectory evidence showing co-disappearance (item vanishes from view after interaction) and high model score (0.85). Visually, the person picks up an item (frame 1), then in subsequent frames (2–4) walks away while holding the basket but also appears to have the item tucked into their pocket or waist area—consistent with concealment behavior. No visible placement into cart/basket or return to shelf occurs; no checkout is seen. This meets the criteria for 'conceal_unpaid' as defined: hiding product on body with multi-frame intent, not just a single grab.","latency_ms":3486.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is holding a shopping basket and examining products on the shelves, consistent with normal shopping behavior. There is no visible concealment of merchandise into a bag, pocket, or under clothing across the frames.","latency_ms":2492.2}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"zenodo_theft__main303_Trim1__C_1__0","clip_id":"zenodo_theft__main303_Trim1","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Across sequential frames, the individual is seen adjusting a large black bag against their torso, then lifting it to their shoulder in a manner consistent with concealing unpaid merchandise within the bag, with no visible payment activity to indicate normal checkout. The L1 qty_spike event aligns with the behavior of taking items to conceal, matching multi-frame hiding intent.","latency_ms":3483.6,"agreement_hint":"keep_ok","center_ts":3.566666666666667,"corpus":"zenodo","media_url":null,"playable":false,"keyframe_urls":["/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__0&file=kf_00_2.43s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__0&file=kf_01_3.20s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__0&file=kf_02_3.93s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__0&file=kf_03_3.93s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.6,"agreement_hint":"uncertain","rationale":"The frames show a man walking down an aisle holding a black bag, but there is no clear visual evidence of him placing unpaid merchandise into the bag or concealing items on his person. The L1 qty_spike event is a soft hint and not sufficient without matching visual concealment evidence.","latency_ms":918.1},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the individual is seen adjusting a large black bag against their torso, then lifting it to their shoulder in a manner consistent with concealing unpaid merchandise within the bag, with no visible payment activity to indicate normal checkout. The L1 qty_spike event aligns with the behavior of taking items to conceal, matching multi-frame hiding intent.","latency_ms":3483.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is holding a black bag and repeatedly brings his hand to the front of his torso (e.g., frame 1 and 2), consistent with placing an item inside the bag or under his shirt. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, but more importantly, the multi-frame behavior—specifically the repeated hand-to-bag/torso motion while walking through the aisle—indicates concealment intent rather than normal shopping. No items are seen placed in a cart or basket; instead, the bag is carried openly but used for hiding. This matches the definition of 'conceal_unpaid': putting a product into a bag/pocket/under clothes, inferred from overall multi-frame behavior.","latency_ms":3735.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their backpack while walking through the aisle, which indicates an intent to conceal unpaid merchandise. This behavior aligns with shoplifting intent.","latency_ms":2044.7}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"zenodo_theft__main303_Trim1__C_1__conceal__0","clip_id":"zenodo_theft__main303_Trim1","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Across sequential frames, the individual adjusts a large black bag while in the snack aisle, with L1 event data indicating concealment under clothes (consistent with hiding unpaid merchandise). The multi-frame behavior shows intentional manipulation of the bag to hide items, matching the conceal_unpaid label criteria.","latency_ms":3569.4,"agreement_hint":"keep_ok","center_ts":1.5666666666666667,"corpus":"zenodo","media_url":null,"playable":false,"keyframe_urls":["/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__conceal__0&file=kf_00_0.43s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__conceal__0&file=kf_01_1.20s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__conceal__0&file=kf_02_1.93s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__conceal__0&file=kf_03_2.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The sequence of frames shows the person holding a black backpack open in front of their torso while manipulating an item near the bag's opening, consistent with concealing merchandise. The L1 event subtype 'under_clothes' and model score support this, and the multi-frame behavior indicates hiding intent rather than normal browsing.","latency_ms":1689.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the individual adjusts a large black bag while in the snack aisle, with L1 event data indicating concealment under clothes (consistent with hiding unpaid merchandise). The multi-frame behavior shows intentional manipulation of the bag to hide items, matching the conceal_unpaid label criteria.","latency_ms":3569.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) is supported by visual evidence: the person repeatedly reaches toward the right side of their body while holding a large black bag, then later walks forward with the bag held close to their torso—consistent with hiding an item under clothing or in the bag. The trajectory analysis shows co-disappear (1.0) and dwell ratio 1.0, indicating sustained focus on concealment behavior. No visible payment or return actions occur; no items are placed in cart or basket. This aligns with 'conceal_unpaid' per rules: multi-frame intent to hide unpaid merchandise, not just browsing.","latency_ms":3224.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen walking through the aisle while adjusting a backpack, which aligns with the L1 event 'conceal' indicating potential concealment of unpaid merchandise. The behavior suggests an intent to hide items on their person.","latency_ms":2615.3}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"zenodo_theft__main303_Trim1__C_1__qty_spike__1","clip_id":"zenodo_theft__main303_Trim1","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual is seen placing a black bag under their shirt (concealing it against their torso) and then securing it over their shoulder, consistent with hiding an unpaid item on their person across sequential frames. The L1 qty_spike event supports the inference of taking items to conceal, matching the visual behavior of hiding a bag under clothing.","latency_ms":2930.9,"agreement_hint":"keep_ok","center_ts":3.566666666666667,"corpus":"zenodo","media_url":null,"playable":false,"keyframe_urls":["/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__qty_spike__1&file=kf_00_2.43s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__qty_spike__1&file=kf_01_3.20s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__qty_spike__1&file=kf_02_3.93s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__qty_spike__1&file=kf_03_3.93s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.6,"agreement_hint":"uncertain","rationale":"The frames show a man walking down an aisle holding a black bag, but there is no visible merchandise being concealed into the bag, pockets, or clothing. The L1 qty_spike event is a soft hint only and lacks matching visual evidence of concealment.","latency_ms":1410.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual is seen placing a black bag under their shirt (concealing it against their torso) and then securing it over their shoulder, consistent with hiding an unpaid item on their person across sequential frames. The L1 qty_spike event supports the inference of taking items to conceal, matching the visual behavior of hiding a bag under clothing.","latency_ms":2930.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is walking down the aisle with a black bag slung over his shoulder, and in the first frame, he is seen adjusting or pressing his hand against the front of the bag near his chest—consistent with placing or securing an item inside. His posture and hand motion suggest concealment rather than casual carrying. The L1 event 'qty_spike' (with taken_proxy=2) supports multiple items being taken, and combined with the visual of him holding the bag close to his body while walking away from shelves, this indicates intent to hide unpaid merchandise. No items are seen being placed in a cart or returned to shelves; instead, the bag’s position and his actions align with concealment.","latency_ms":3344.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their backpack while walking through the aisle, which indicates an intent to conceal unpaid merchandise. This behavior aligns with the 'conceal_unpaid' label as it shows a clear action of hiding an item on their person.","latency_ms":8476.4}]}],"n_fp":6,"n_miss":7,"n_keep":60},"qwen_flash":{"fp_kept":[{"kind":"fp_kept","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"hf_normal__Normal__18___C_1__conceal__1","clip_id":"hf_normal__Normal (18)","weak_label":"negative","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with the trajectory evidence showing co-disappearance (1.0) and high dwell ratio (0.8333), indicates the person likely concealed an item in their pocket. The person’s hand is consistently near the hip area across frames, and no visible payment or return action occurs — consistent with concealment rather than browsing or checkout. Although the risk_score is 0.0, the visual behavior and meta data strongly support conceal_unpaid.","latency_ms":2676.2,"agreement_hint":"fp_kept","center_ts":9.566666666666666,"corpus":"hf_tcc","media_url":"/api/media/dataset/hf_tcc_shoplifting__Shoplifting%20-%20MNNIT__Normal__Normal%20%2818%29.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=hf_normal__Normal__18___C_1__conceal__1&file=kf_00_8.43s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__18___C_1__conceal__1&file=kf_01_9.20s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__18___C_1__conceal__1&file=kf_02_9.93s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__18___C_1__conceal__1&file=kf_03_10.63s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.6,"agreement_hint":"fp_suppressed","rationale":"The keyframes show the person standing near a table with boxes and items, but no clear concealment into a bag, pocket, or clothing is visible. The L1 conceal event is a soft hint and lacks matching visual evidence in the provided frames.","latency_ms":1679.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"Across sequential frames, the individual is observed moving an item from the table into their hip pocket, which matches the L1 conceal event subtype of pocket hiding, consistent with concealing an unpaid product.","latency_ms":4032.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with the trajectory evidence showing co-disappearance (1.0) and high dwell ratio (0.8333), indicates the person likely concealed an item in their pocket. The person’s hand is consistently near the hip area across frames, and no visible payment or return action occurs — consistent with concealment rather than browsing or checkout. Although the risk_score is 0.0, the visual behavior and meta data strongly support conceal_unpaid.","latency_ms":2676.2},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"fp_kept","rationale":"The individual is shown with his hand inside his pocket, which aligns with the L1 event 'conceal' indicating potential concealment of an item. The posture and positioning suggest an intent to hide merchandise on his person.","latency_ms":2635.7}]},{"kind":"fp_kept","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"hf_normal__Normal__20___C_1__conceal__0","clip_id":"hf_normal__Normal (20)","weak_label":"negative","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappearance (item vanishes from view after approach) and high model score (0.85), strongly indicates the person is concealing an item in their pocket or clothing. The person's posture—bending slightly, hands near the hip area—and lack of visible payment or return action support this. No visual of the item being placed in a bag or cart; instead, the behavior aligns with hiding merchandise on the body. This matches the definition of 'conceal_unpaid' as hiding product on the body across frames.","latency_ms":3570.7,"agreement_hint":"fp_kept","center_ts":2.7666666666666666,"corpus":"hf_tcc","media_url":"/api/media/dataset/hf_tcc_shoplifting__Shoplifting%20-%20MNNIT__Normal__Normal%20%2820%29.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=hf_normal__Normal__20___C_1__conceal__0&file=kf_00_1.63s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__20___C_1__conceal__0&file=kf_01_2.40s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__20___C_1__conceal__0&file=kf_02_3.13s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__20___C_1__conceal__0&file=kf_03_3.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.6,"agreement_hint":"fp_suppressed","rationale":"The keyframes show the person standing and looking at items on a table, but no concealment into a pocket, bag, or clothing is visible. The L1 conceal event is a soft hint and lacks matching visual evidence in these frames.","latency_ms":1012.4},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"Across sequential frames, the individual is seen moving their hand toward their hip pocket (matching the L1 event's pocket concealment subtype) near items on the table, showing multi-frame behavior of hiding an item in their pants pocket consistent with concealing unpaid merchandise.","latency_ms":3309.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappearance (item vanishes from view after approach) and high model score (0.85), strongly indicates the person is concealing an item in their pocket or clothing. The person's posture—bending slightly, hands near the hip area—and lack of visible payment or return action support this. No visual of the item being placed in a bag or cart; instead, the behavior aligns with hiding merchandise on the body. This matches the definition of 'conceal_unpaid' as hiding product on the body across frames.","latency_ms":3570.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"fp_suppressed","rationale":"The individual is standing in an office environment, looking at items on a desk. There is no visible concealment of merchandise into pockets, bags, or under clothing. The behavior appears consistent with normal browsing or examination of items, and there is no evidence of shoplifting intent.","latency_ms":2138.8}]},{"kind":"fp_kept","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"hf_normal__Normal__22___C_1__conceal__1","clip_id":"hf_normal__Normal (22)","weak_label":"negative","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with the trajectory evidence (co_disappear = 1.0, dwell_ratio = 0.833) indicates the person is hiding an item under their clothes. The person’s posture—bending over a table, reaching toward the wall/box area, and then pulling back while appearing to adjust clothing or pocket—supports concealment behavior. No payment or visible checkout action occurs; no items are placed in a cart or returned to shelves. This matches 'conceal_unpaid' as defined: hiding merchandise on the body across multiple frames, not just a single grab.","latency_ms":3566.1,"agreement_hint":"fp_kept","center_ts":9.966666666666667,"corpus":"hf_tcc","media_url":"/api/media/dataset/hf_tcc_shoplifting__Shoplifting%20-%20MNNIT__Normal__Normal%20%2822%29.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=hf_normal__Normal__22___C_1__conceal__1&file=kf_00_8.83s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__22___C_1__conceal__1&file=kf_01_9.60s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__22___C_1__conceal__1&file=kf_02_10.33s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__22___C_1__conceal__1&file=kf_03_11.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.6,"agreement_hint":"fp_suppressed","rationale":"The frames show a person standing at a table with boxes and items, handling objects near the table surface. There is no visible concealment into a bag, pocket, or under clothes across the frames. The L1 conceal hint is not supported by clear visual evidence, so the behavior cannot be confirmed as shoplifting or concealment.","latency_ms":1757.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The person is observed moving an item toward their pants pocket (under clothes) across sequential frames, matching the L1 conceal event subtype of under_clothes, indicating hiding an unpaid item on their body.","latency_ms":3104.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with the trajectory evidence (co_disappear = 1.0, dwell_ratio = 0.833) indicates the person is hiding an item under their clothes. The person’s posture—bending over a table, reaching toward the wall/box area, and then pulling back while appearing to adjust clothing or pocket—supports concealment behavior. No payment or visible checkout action occurs; no items are placed in a cart or returned to shelves. This matches 'conceal_unpaid' as defined: hiding merchandise on the body across multiple frames, not just a single grab.","latency_ms":3566.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"fp_kept","rationale":"The individual is seen placing an item into his pocket, which constitutes concealment of unpaid merchandise. This action aligns with the 'conceal_unpaid' label as it shows intent to hide the item on his person.","latency_ms":2075.4}]},{"kind":"fp_kept","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"hf_normal__Normal__3___C_2__conceal__0","clip_id":"hf_normal__Normal (3)","weak_label":"negative","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' and zone 'hip', supported by trajectory evidence showing co-disappearance (item vanishes from view after being handled near the hip). The person is seen holding an orange item, then placing it down on the table—however, the motion and context (including the second person’s observation and the item's prior handling) suggest the item may have been concealed in the pocket before being set down, especially given the high model score (0.85) and dwell ratio of 1.0 indicating sustained focus on that area. Since the item was not placed in a cart or returned to shelf, and no payment is observed, concealment is inferred. This aligns with 'conceal_unpaid' as defined: hiding into pocket/clothes with multi-frame intent.","latency_ms":4332.0,"agreement_hint":"fp_kept","center_ts":5.166666666666667,"corpus":"hf_tcc","media_url":"/api/media/dataset/hf_tcc_shoplifting__Shoplifting%20-%20MNNIT__Normal__Normal%20%283%29.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=hf_normal__Normal__3___C_2__conceal__0&file=kf_00_4.03s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__3___C_2__conceal__0&file=kf_01_4.80s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__3___C_2__conceal__0&file=kf_02_5.53s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__3___C_2__conceal__0&file=kf_03_6.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"fp_kept","rationale":"The person picks up an orange item from the table and, across the sequence, moves it down toward his hip/pocket area where it disappears from view, matching the L1 conceal hint (pocket/hip). This multi-frame behavior indicates concealment rather than visible carrying or browsing.","latency_ms":1498.1},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"fp_suppressed","rationale":"The customer picks up, examines, and then places the orange product back onto the table, which is normal shopping behavior consistent with browsing merchandise. No concealment of unpaid items into pockets, bags, or under clothes is observed across the multi-frame sequence.","latency_ms":2349.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' and zone 'hip', supported by trajectory evidence showing co-disappearance (item vanishes from view after being handled near the hip). The person is seen holding an orange item, then placing it down on the table—however, the motion and context (including the second person’s observation and the item's prior handling) suggest the item may have been concealed in the pocket before being set down, especially given the high model score (0.85) and dwell ratio of 1.0 indicating sustained focus on that area. Since the item was not placed in a cart or returned to shelf, and no payment is observed, concealment is inferred. This aligns with 'conceal_unpaid' as defined: hiding into pocket/clothes with multi-frame intent.","latency_ms":4332.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"fp_suppressed","rationale":"The individual is examining an orange object in his hands, placing it on a table, and appears to be engaged in normal browsing behavior. There is no visible concealment into a bag, pocket, or under clothing, and the actions are consistent with typical shopping activity.","latency_ms":2945.8}]},{"kind":"fp_kept","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"hf_normal__Normal__59___C_1__conceal__0","clip_id":"hf_normal__Normal (59)","weak_label":"negative","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high trajectory score (0.6933) + co_disappear = 1.0 strongly suggests concealment intent. The person is leaning over a table with packages, and his hand moves toward his waist/hip area while holding an item—consistent with hiding it under clothing. No payment or visible checkout action occurs; no clear return to shelf or cart. The risk_score is low but the visual behavior aligns with multi-frame concealment under clothes, matching the 'conceal_unpaid' label per rule 2.","latency_ms":3700.1,"agreement_hint":"fp_kept","center_ts":7.166666666666667,"corpus":"hf_tcc","media_url":"/api/media/dataset/hf_tcc_shoplifting__Shoplifting%20-%20MNNIT__Normal__Normal%20%2859%29.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=hf_normal__Normal__59___C_1__conceal__0&file=kf_00_6.03s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__59___C_1__conceal__0&file=kf_01_6.80s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__59___C_1__conceal__0&file=kf_02_7.53s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__59___C_1__conceal__0&file=kf_03_8.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"fp_suppressed","rationale":"The frames show a person standing at a table with boxes and items, looking down and handling objects. There is no visible concealment into a bag, pocket, or under clothes. The L1 conceal event is not supported by clear visual evidence of hiding merchandise.","latency_ms":1426.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"fp_suppressed","rationale":"The individual is interacting with items on a table, picking up and examining products in a normal shopping/inspecting manner, with no visible concealment of unpaid items into bags, pockets, or under clothes across the multi-frame sequence.","latency_ms":3034.7},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high trajectory score (0.6933) + co_disappear = 1.0 strongly suggests concealment intent. The person is leaning over a table with packages, and his hand moves toward his waist/hip area while holding an item—consistent with hiding it under clothing. No payment or visible checkout action occurs; no clear return to shelf or cart. The risk_score is low but the visual behavior aligns with multi-frame concealment under clothes, matching the 'conceal_unpaid' label per rule 2.","latency_ms":3700.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"fp_suppressed","rationale":"The individual is in an office-like environment, not a retail setting. He appears to be handling items on a desk, possibly preparing for shipping or organizing packages. There is no evidence of concealment, shoplifting intent, or browsing unpaid merchandise. The context suggests normal checkout or administrative activity.","latency_ms":2507.3}]},{"kind":"fp_kept","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"normal__demo_normal_03__C_1__conceal__0","clip_id":"normal__demo_normal_03","weak_label":"negative","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with the trajectory evidence (co_disappear = 1.0, dwell_ratio = 1.0), indicates the person likely concealed an item in their pocket or clothing. In the first frame, the person is holding both hands near the chest/upper torso area, consistent with placing or hiding an object. The subsequent frames show them walking away while still holding a phone, but no visible item is seen being placed in a cart or basket — suggesting concealment rather than normal browsing. The high model score (0.85) and trajectory score (0.65) support this inference. No payment or checkout action is observed.","latency_ms":3339.6,"agreement_hint":"fp_kept","center_ts":6.2,"corpus":"demo","media_url":"/api/media/sample/demo_normal_03.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=normal__demo_normal_03__C_1__conceal__0&file=kf_00_5.08s.jpg","/api/path1_case_keyframe?case_id=normal__demo_normal_03__C_1__conceal__0&file=kf_01_5.84s.jpg","/api/path1_case_keyframe?case_id=normal__demo_normal_03__C_1__conceal__0&file=kf_02_6.56s.jpg","/api/path1_case_keyframe?case_id=normal__demo_normal_03__C_1__conceal__0&file=kf_03_7.32s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"fp_suppressed","rationale":"The person is holding and looking at a phone, not concealing merchandise. No unpaid items are being hidden in pockets, bags, or clothing. The L1 conceal event is not supported by visual evidence.","latency_ms":1326.4},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"fp_suppressed","rationale":"The individual is holding a small dark object (consistent with a mobile phone, not an unpaid merchandise item) and examining it, with no action of concealing an unpaid product into a bag, pocket, or under clothing observed across the frames. The L1 'conceal' event is not supported by visual evidence of hiding merchandise.","latency_ms":3130.7},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with the trajectory evidence (co_disappear = 1.0, dwell_ratio = 1.0), indicates the person likely concealed an item in their pocket or clothing. In the first frame, the person is holding both hands near the chest/upper torso area, consistent with placing or hiding an object. The subsequent frames show them walking away while still holding a phone, but no visible item is seen being placed in a cart or basket — suggesting concealment rather than normal browsing. The high model score (0.85) and trajectory score (0.65) support this inference. No payment or checkout action is observed.","latency_ms":3339.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"fp_suppressed","rationale":"The person is seen holding a small object and making hand gestures, but there is no clear evidence of concealing merchandise into a bag, pocket, or under clothing. The behavior appears consistent with normal shopping activity, such as examining or handling an item.","latency_ms":2435.1}]},{"kind":"fp_kept","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"normal__demo_normal_04__C_1__conceal__0","clip_id":"normal__demo_normal_04","weak_label":"negative","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with high trajectory score (0.65) and co-disappear evidence (1.0), indicates the person likely concealed an item in their pocket. The person’s posture and movement—walking past the counter, turning, and interacting with another individual—suggests they are hiding something rather than simply browsing or paying. No visible payment or checkout action occurs, and no items are placed in a cart or basket. The risk score is low but the visual behavior aligns with concealment intent.","latency_ms":3224.1,"agreement_hint":"fp_kept","center_ts":4.76,"corpus":"demo","media_url":"/api/media/sample/demo_normal_04.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=normal__demo_normal_04__C_1__conceal__0&file=kf_00_3.64s.jpg","/api/path1_case_keyframe?case_id=normal__demo_normal_04__C_1__conceal__0&file=kf_01_4.40s.jpg","/api/path1_case_keyframe?case_id=normal__demo_normal_04__C_1__conceal__0&file=kf_02_5.12s.jpg","/api/path1_case_keyframe?case_id=normal__demo_normal_04__C_1__conceal__0&file=kf_03_5.88s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.8,"agreement_hint":"fp_suppressed","rationale":"The keyframes show the person walking through the store and holding a small item in his hand while interacting with another person. There is no visual evidence of him concealing merchandise into a pocket, bag, or under clothing. The L1 conceal event is not supported by the visuals, which show the item remaining visible in his hand.","latency_ms":1525.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The L1 event indicates a conceal event in the hip pocket zone, paired with multi-frame visual context showing the individual adjusting their hoodie near the hip area, consistent with hiding an unpaid item in clothing, matching the conceal_unpaid label criteria.","latency_ms":2453.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with high trajectory score (0.65) and co-disappear evidence (1.0), indicates the person likely concealed an item in their pocket. The person’s posture and movement—walking past the counter, turning, and interacting with another individual—suggests they are hiding something rather than simply browsing or paying. No visible payment or checkout action occurs, and no items are placed in a cart or basket. The risk score is low but the visual behavior aligns with concealment intent.","latency_ms":3224.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"fp_suppressed","rationale":"The individual is seen walking through the store, holding an item in his hand without any indication of concealment into a bag, pocket, or under clothing. There is no evidence of hiding behavior across the frames, and the actions appear consistent with normal shopping behavior such as examining or carrying an item.","latency_ms":2353.6}]},{"kind":"fp_kept","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"zenodo_normal__main170_Trim2__C_2__conceal__0","clip_id":"zenodo_normal__main170_Trim2","weak_label":"negative","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high trajectory score (0.6632) + co_disappear (1.0) indicates the person likely concealed an item under clothes. In the frames, the man in the striped shirt reaches into a shelf, then lowers his hand toward his waist while holding a basket—consistent with placing an item under clothing. The basket appears to contain only one visible item, but the multi-frame behavior (especially the downward motion and hand positioning near the waist) aligns with concealment intent. This is not just browsing since the action involves hiding rather than placing in cart or returning. The risk score is low but the visual evidence of co-disappearance and trajectory supports conceal_unpaid over uncertain.","latency_ms":3988.6,"agreement_hint":"fp_kept","center_ts":1.5666666666666667,"corpus":"zenodo","media_url":null,"playable":false,"keyframe_urls":["/api/path1_case_keyframe?case_id=zenodo_normal__main170_Trim2__C_2__conceal__0&file=kf_00_0.43s.jpg","/api/path1_case_keyframe?case_id=zenodo_normal__main170_Trim2__C_2__conceal__0&file=kf_01_1.20s.jpg","/api/path1_case_keyframe?case_id=zenodo_normal__main170_Trim2__C_2__conceal__0&file=kf_02_1.93s.jpg","/api/path1_case_keyframe?case_id=zenodo_normal__main170_Trim2__C_2__conceal__0&file=kf_03_2.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.8,"agreement_hint":"fp_suppressed","rationale":"The keyframes show the individual holding a shopping basket and reaching for items on the shelf, which is consistent with normal shopping behavior. There is no visible evidence of concealing merchandise into pockets, bags, or under clothes. The L1 conceal event is not supported by the visual frames.","latency_ms":993.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"fp_suppressed","rationale":"The individual in the striped shirt is holding a shopping basket, picking up products from the shelf, and placing them into the basket, which is normal shopping behavior consistent with browsing and adding items to a cart, not concealing unpaid merchandise. The L1 'conceal' event is not supported by visual evidence of hiding items under clothes or elsewhere outside the basket.","latency_ms":2494.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high trajectory score (0.6632) + co_disappear (1.0) indicates the person likely concealed an item under clothes. In the frames, the man in the striped shirt reaches into a shelf, then lowers his hand toward his waist while holding a basket—consistent with placing an item under clothing. The basket appears to contain only one visible item, but the multi-frame behavior (especially the downward motion and hand positioning near the waist) aligns with concealment intent. This is not just browsing since the action involves hiding rather than placing in cart or returning. The risk score is low but the visual evidence of co-disappearance and trajectory supports conceal_unpaid over uncertain.","latency_ms":3988.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"fp_suppressed","rationale":"The individual is holding a shopping basket and examining products on the shelves, consistent with normal shopping behavior. There is no visible concealment of merchandise into bags, pockets, or under clothing across the frames.","latency_ms":1898.2}]},{"kind":"fp_kept","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"zenodo_normal__main199_Trim1__C_2__conceal__0","clip_id":"zenodo_normal__main199_Trim1","weak_label":"negative","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) is supported by the trajectory evidence showing co-disappear (1.0) and dwell ratio 1.0, indicating the person likely hid an item under clothes. Although no explicit visual of the concealment is seen in these frames, the consistent multi-frame behavior (e.g., holding an item while walking away from shelves, then disappearing into a zone where concealment is inferred) aligns with the 'conceal_unpaid' label per rule 2: only label when visuals show concealment or clear multi-frame hiding intent. The risk_score is low but the meta evidence (trajectory, co_disappear, mode=hybrid) strongly supports concealment intent.","latency_ms":3948.5,"agreement_hint":"fp_kept","center_ts":1.5666666666666667,"corpus":"zenodo","media_url":null,"playable":false,"keyframe_urls":["/api/path1_case_keyframe?case_id=zenodo_normal__main199_Trim1__C_2__conceal__0&file=kf_00_0.43s.jpg","/api/path1_case_keyframe?case_id=zenodo_normal__main199_Trim1__C_2__conceal__0&file=kf_01_1.20s.jpg","/api/path1_case_keyframe?case_id=zenodo_normal__main199_Trim1__C_2__conceal__0&file=kf_02_1.93s.jpg","/api/path1_case_keyframe?case_id=zenodo_normal__main199_Trim1__C_2__conceal__0&file=kf_03_2.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"fp_suppressed","rationale":"The keyframes show individuals walking and browsing in a store aisle; no visible concealment of unpaid merchandise into bags, pockets, or clothing is evident. The L1 conceal event is not supported by clear visual evidence in these frames.","latency_ms":1468.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The L1 event indicates a conceal event under clothes, with multi-frame visual context showing the individual adjusting their waist area (consistent with hiding an item under clothing) as they move through the aisle, matching the subtype of concealment under clothes.","latency_ms":2205.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) is supported by the trajectory evidence showing co-disappear (1.0) and dwell ratio 1.0, indicating the person likely hid an item under clothes. Although no explicit visual of the concealment is seen in these frames, the consistent multi-frame behavior (e.g., holding an item while walking away from shelves, then disappearing into a zone where concealment is inferred) aligns with the 'conceal_unpaid' label per rule 2: only label when visuals show concealment or clear multi-frame hiding intent. The risk_score is low but the meta evidence (trajectory, co_disappear, mode=hybrid) strongly supports concealment intent.","latency_ms":3948.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"fp_suppressed","rationale":"The individual is walking through the aisle, holding a small object in his hand, and appears to be examining products on the shelves. There is no visible concealment of merchandise into a bag, pocket, or under clothing. The behavior aligns with normal shopping activity.","latency_ms":2324.9}]}],"miss_pos":[{"kind":"miss_pos","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting039_x264__C_2__0","clip_id":"ucf_theft__Shoplifting039_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"rationale":"The person is standing near a display area, facing the shelves and looking toward the entrance, with hands on hips in a relaxed posture. No visual evidence of picking up, holding, or concealing any item is present across the frames. The behavior aligns with normal browsing — possibly waiting or observing — and no concealment action (e.g., into bag/pocket/clothes) is observed. L1 event 'qty_spike' alone is insufficient without visual confirmation of theft.","latency_ms":2279.9,"agreement_hint":"miss_pos","center_ts":82.36666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting039_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__0&file=kf_00_81.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__0&file=kf_01_82.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__0&file=kf_02_82.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__0&file=kf_03_83.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a person standing near a display table and shelf, facing away from the camera. No concealment into bag, pocket, or clothing is visible. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1405.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the customer is seen moving items from a display counter and concealing them under their clothing (waistband/pants area) in a manner consistent with hiding unpaid merchandise, matching multi-frame behavior indicating concealment.","latency_ms":2527.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The person is standing near a display area, facing the shelves and looking toward the entrance, with hands on hips in a relaxed posture. No visual evidence of picking up, holding, or concealing any item is present across the frames. The behavior aligns with normal browsing — possibly waiting or observing — and no concealment action (e.g., into bag/pocket/clothes) is observed. L1 event 'qty_spike' alone is insufficient without visual confirmation of theft.","latency_ms":2279.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen picking up an item, examining it briefly, and placing it into a shopping basket. There is no evidence of concealment or hiding the item on their body. The behavior aligns with normal shopping activity.","latency_ms":1742.5}]},{"kind":"miss_pos","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting039_x264__C_2__qty_spike__1","clip_id":"ucf_theft__Shoplifting039_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"rationale":"The person is standing near a display with hands on hips, facing the entrance/exit area, and appears to be browsing or waiting. No visual evidence of picking up, holding, or concealing any merchandise. The L1 event 'qty_spike' is likely a false positive (e.g., due to motion detection or proxy signal), but without actual visual confirmation of item handling or concealment, this behavior aligns with normal browsing. No concealment action is observed across frames.","latency_ms":3609.6,"agreement_hint":"miss_pos","center_ts":82.36666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting039_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__qty_spike__1&file=kf_00_81.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__qty_spike__1&file=kf_01_82.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__qty_spike__1&file=kf_02_82.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__qty_spike__1&file=kf_03_83.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a person standing near a display table and then walking toward the exit. No visual evidence of concealing merchandise into a bag, pocket, or clothing is visible. The L1 qty_spike event is a soft hint and not supported by clear concealment behavior in the provided keyframes.","latency_ms":1481.4},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the customer is seen moving items from a display area and concealing them under their clothing (torso/waist area) without any visible payment action, consistent with hiding unpaid merchandise. The L1 qty_spike event aligns with the observed multi-frame behavior of handling and concealing products.","latency_ms":3204.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The person is standing near a display with hands on hips, facing the entrance/exit area, and appears to be browsing or waiting. No visual evidence of picking up, holding, or concealing any merchandise. The L1 event 'qty_spike' is likely a false positive (e.g., due to motion detection or proxy signal), but without actual visual confirmation of item handling or concealment, this behavior aligns with normal browsing. No concealment action is observed across frames.","latency_ms":3609.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is seen picking up an item, holding it briefly, and examining it while standing near the checkout counter. There is no visible concealment into a bag, pocket, or clothing, and the behavior aligns with normal shopping activity rather than shoplifting intent.","latency_ms":2523.8}]},{"kind":"miss_pos","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_10__1","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"rationale":"The customer is actively browsing clothing racks, reaching for items, and appears to be examining or selecting garments in a normal shopping manner. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothes) or intent to steal. The L1 event 'qty_spike' with 'taken_proxy>=2' may reflect rapid item handling during selection, but without visible concealment, it remains consistent with browsing behavior.","latency_ms":2099.9,"agreement_hint":"miss_pos","center_ts":43.166666666666664,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__1&file=kf_00_42.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__1&file=kf_01_42.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__1&file=kf_02_43.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__1&file=kf_03_44.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show customers browsing and handling clothing on racks, with no visible concealment into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding unpaid merchandise.","latency_ms":1478.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer with dark hair in a white top is observed moving clothing from the rack and tucking it into the back of her jeans (under her clothing) across sequential frames, which constitutes hiding an unpaid product on her body.","latency_ms":2923.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing clothing racks, reaching for items, and appears to be examining or selecting garments in a normal shopping manner. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothes) or intent to steal. The L1 event 'qty_spike' with 'taken_proxy>=2' may reflect rapid item handling during selection, but without visible concealment, it remains consistent with browsing behavior.","latency_ms":2099.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is picking up and examining clothing items from the rack, which is consistent with normal shopping behavior. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames.","latency_ms":1515.5}]},{"kind":"miss_pos","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_10__qty_spike__4","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"rationale":"The customer is actively browsing clothes, reaching into a rack, picking up items, and examining them — typical shopping behavior. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothing) or hiding actions across frames. The L1 'qty_spike' event may reflect rapid item handling during browsing, not theft. No intent to steal is visible.","latency_ms":2088.0,"agreement_hint":"miss_pos","center_ts":43.166666666666664,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__qty_spike__4&file=kf_00_42.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__qty_spike__4&file=kf_01_42.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__qty_spike__4&file=kf_02_43.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__qty_spike__4&file=kf_03_44.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The keyframes show customers browsing and handling clothing on racks in a retail store. No clear concealment into bags, pockets, or clothing is visible across the frames. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding merchandise.","latency_ms":1186.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer in the white top and jeans is observed moving clothing from the rack and positioning items under her lifted top (waist area) across consecutive frames, which constitutes hiding unpaid merchandise on her body. The L1 qty_spike event aligns with the multi-frame behavior of taking items to conceal them, matching the visual evidence of hiding.","latency_ms":2776.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing clothes, reaching into a rack, picking up items, and examining them — typical shopping behavior. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothing) or hiding actions across frames. The L1 'qty_spike' event may reflect rapid item handling during browsing, not theft. No intent to steal is visible.","latency_ms":2088.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is seen picking up and examining clothing items from the rack, which is consistent with normal shopping behavior. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames.","latency_ms":2199.3}]},{"kind":"miss_pos","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_29__3","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"rationale":"The customers are actively browsing clothing racks, picking up items, examining them, and placing them back or holding them while shopping—consistent with normal retail behavior. No visual evidence of concealment (e.g., putting items into bags/pockets/clothes without paying) is observed across the frames. The L1 event 'qty_spike' with 'handheld_peak>=2' may reflect brief handling but does not indicate theft without additional concealment cues.","latency_ms":2309.1,"agreement_hint":"miss_pos","center_ts":157.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__3&file=kf_00_156.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__3&file=kf_01_157.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__3&file=kf_02_157.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__3&file=kf_03_158.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks. No clear concealment into bags, pockets, or clothing is visible across the sequence. The L1 qty_spike signal is a soft hint and lacks matching visual evidence of hiding merchandise.","latency_ms":1415.0},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the white top and jeans is seen moving a clothing item from the rack and concealing it inside the back of their pants (under clothing) across sequential frames, which matches the definition of hiding unpaid merchandise. The L1 qty_spike event aligns with the observed action of taking an item to conceal, supporting the visual evidence.","latency_ms":3317.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customers are actively browsing clothing racks, picking up items, examining them, and placing them back or holding them while shopping—consistent with normal retail behavior. No visual evidence of concealment (e.g., putting items into bags/pockets/clothes without paying) is observed across the frames. The L1 event 'qty_spike' with 'handheld_peak>=2' may reflect brief handling but does not indicate theft without additional concealment cues.","latency_ms":2309.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are seen picking up, holding, and examining clothing items in a typical shopping manner. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames. The behavior aligns with normal browsing and product evaluation.","latency_ms":2214.3}]},{"kind":"miss_pos","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_29__qty_spike__8","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"rationale":"The person is actively browsing clothing racks, picking up and examining items, and holding them visibly while standing near the rack. There is no visual evidence of concealment into bags, pockets, or under clothes. The 'qty_spike' L1 event may reflect multiple items being handled quickly during normal browsing (e.g., checking several garments), but without any indication of hiding or attempting to leave without paying, this remains within normal shopping behavior.","latency_ms":2171.1,"agreement_hint":"miss_pos","center_ts":157.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__qty_spike__8&file=kf_00_156.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__qty_spike__8&file=kf_01_157.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__qty_spike__8&file=kf_02_157.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__qty_spike__8&file=kf_03_158.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks. No clear concealment into bags, pockets, or clothing is visible. The L1 qty_spike event is a soft hint and not supported by visual evidence of hiding merchandise.","latency_ms":1299.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"A woman in a white top and jeans is observed over multiple frames placing clothing items into her pants waistband, hiding them from view, which constitutes concealing unpaid merchandise. The L1 qty_spike event aligns with this multi-frame concealment behavior.","latency_ms":3892.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The person is actively browsing clothing racks, picking up and examining items, and holding them visibly while standing near the rack. There is no visual evidence of concealment into bags, pockets, or under clothes. The 'qty_spike' L1 event may reflect multiple items being handled quickly during normal browsing (e.g., checking several garments), but without any indication of hiding or attempting to leave without paying, this remains within normal shopping behavior.","latency_ms":2171.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are seen picking up, holding, and examining clothing items in a typical shopping manner. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames. The behavior aligns with normal browsing and product evaluation.","latency_ms":2258.6}]},{"kind":"miss_pos","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_4__0","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"rationale":"The customers are actively browsing clothing racks, picking up items, examining them, and placing them back on the rack or holding them while shopping. There is no visual evidence of concealment (e.g., putting items into bags, pockets, or under clothes) or intent to steal. The L1 event 'qty_spike' with 'handheld_peak>=2' may reflect multiple items being held briefly for inspection, which is consistent with normal browsing behavior in a retail setting.","latency_ms":2491.7,"agreement_hint":"miss_pos","center_ts":13.966666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__0&file=kf_00_12.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__0&file=kf_01_13.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__0&file=kf_02_14.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__0&file=kf_03_15.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks; no concealment into a bag, pocket, or clothing is visible. The L1 qty_spike is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1770.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer in the white top is observed moving an item toward their torso/under their clothing across sequential frames, consistent with hiding an unpaid product, matching the L1 event's handheld peak signal indicating multiple items handled with intent to conceal.","latency_ms":2844.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customers are actively browsing clothing racks, picking up items, examining them, and placing them back on the rack or holding them while shopping. There is no visual evidence of concealment (e.g., putting items into bags, pockets, or under clothes) or intent to steal. The L1 event 'qty_spike' with 'handheld_peak>=2' may reflect multiple items being held briefly for inspection, which is consistent with normal browsing behavior in a retail setting.","latency_ms":2491.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are seen browsing through clothing items on the racks, picking up and examining garments. There is no visible concealment of merchandise into bags, pockets, or under clothes. The behavior appears consistent with normal shopping activity.","latency_ms":1793.9}]},{"kind":"miss_pos","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_4__qty_spike__1","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"rationale":"The customers are actively browsing clothing racks, picking up items, examining them, and placing them back or holding them while shopping—consistent with normal retail behavior. No visual evidence of concealment (e.g., putting items into bags/pockets/clothes) or intent to steal is observed across the frames. The L1 event 'qty_spike' is likely due to multiple items being handled in quick succession during normal browsing (e.g., trying on or comparing), not theft.","latency_ms":2496.2,"agreement_hint":"miss_pos","center_ts":13.966666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__qty_spike__1&file=kf_00_12.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__qty_spike__1&file=kf_01_13.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__qty_spike__1&file=kf_02_14.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__qty_spike__1&file=kf_03_15.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks; no concealment into bags, pockets, or clothing is visible. The L1 qty_spike is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":935.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer in the white top is observed moving an item toward their torso/under their clothing across sequential frames, consistent with hiding an unpaid product, supported by the L1 qty_spike event indicating a quantity change associated with this activity.","latency_ms":2453.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customers are actively browsing clothing racks, picking up items, examining them, and placing them back or holding them while shopping—consistent with normal retail behavior. No visual evidence of concealment (e.g., putting items into bags/pockets/clothes) or intent to steal is observed across the frames. The L1 event 'qty_spike' is likely due to multiple items being handled in quick succession during normal browsing (e.g., trying on or comparing), not theft.","latency_ms":2496.2},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are seen examining and handling clothing items on the racks, consistent with normal shopping behavior. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames.","latency_ms":2091.4}]},{"kind":"miss_pos","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_5__2","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"rationale":"The customer is actively browsing and handling clothing items on a rack, picking up, examining, and repositioning garments in a typical shopping manner. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothes) or intent to steal — the behavior aligns with normal shopping activity. The L1 event 'qty_spike' is likely due to rapid handling of multiple items while browsing, not theft.","latency_ms":3758.1,"agreement_hint":"miss_pos","center_ts":149.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__2&file=kf_00_148.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__2&file=kf_01_149.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__2&file=kf_02_149.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__2&file=kf_03_150.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks; no concealment into bags, pockets, or clothing is visible. The L1 qty_spike is a soft hint only and is not supported by clear visual evidence of hiding merchandise.","latency_ms":1211.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is holding multiple clothing items while browsing the clothing rack, with no visible action of concealing items into a bag, pocket, or under clothes; the behavior is consistent with normal shopping activity of examining or carrying items while browsing.","latency_ms":2590.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing and handling clothing items on a rack, picking up, examining, and repositioning garments in a typical shopping manner. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothes) or intent to steal — the behavior aligns with normal shopping activity. The L1 event 'qty_spike' is likely due to rapid handling of multiple items while browsing, not theft.","latency_ms":3758.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is picking up and examining clothing items, holding them in their hands, and appears to be browsing through the merchandise. There is no visible concealment of items into bags, pockets, or under clothes, and the behavior aligns with normal shopping activity.","latency_ms":2268.7}]},{"kind":"miss_pos","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_5__qty_spike__7","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"rationale":"The customer is actively browsing and handling clothing items on a rack, picking up, examining, and repositioning garments in a typical shopping manner. There is no visual evidence of concealment (e.g., putting items into bags, pockets, or under clothes) or intent to steal — the behavior aligns with normal shopping activity. The L1 event 'qty_spike' may reflect rapid handling but is not supported by visual concealment cues.","latency_ms":3533.7,"agreement_hint":"miss_pos","center_ts":149.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__qty_spike__7&file=kf_00_148.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__qty_spike__7&file=kf_01_149.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__qty_spike__7&file=kf_02_149.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__qty_spike__7&file=kf_03_150.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The keyframes show customers browsing and handling clothing on racks. No concealment into bags, pockets, or clothing is visible. The L1 qty_spike event is a soft hint and lacks matching visual evidence of theft.","latency_ms":1484.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is holding multiple clothing items while standing at a clothing rack, engaging in normal shopping behavior of examining or selecting merchandise, with no visible concealment of unpaid items into bags, pockets, or under clothes.","latency_ms":3145.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing and handling clothing items on a rack, picking up, examining, and repositioning garments in a typical shopping manner. There is no visual evidence of concealment (e.g., putting items into bags, pockets, or under clothes) or intent to steal — the behavior aligns with normal shopping activity. The L1 event 'qty_spike' may reflect rapid handling but is not supported by visual concealment cues.","latency_ms":3533.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is picking up and examining clothing items, holding them against their body, and appears to be shopping normally. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames.","latency_ms":1591.0}]},{"kind":"miss_pos","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_71__6","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The customer is browsing clothing racks, standing in front of a rack and appearing to examine items. There is no visual evidence of concealment (e.g., putting items into bag/pocket/clothes) or hiding behavior across frames. The L1 event 'qty_spike' with 'handheld_peak>=2' may indicate brief handling but is consistent with normal shopping (e.g., picking up multiple items to compare), not theft. No intent to steal is visible.","latency_ms":3486.8,"agreement_hint":"miss_pos","center_ts":665.9666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__6&file=kf_00_664.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__6&file=kf_01_665.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__6&file=kf_02_666.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__6&file=kf_03_667.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The person is seen browsing clothing racks and holding items near a bag, but there is no clear visual evidence of concealing unpaid merchandise into a bag, pocket, or clothing. The L1 qty_spike event is a soft hint and not sufficient for a concealment determination.","latency_ms":1461.0},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across the sequence of frames, the customer in the turquoise shirt is manipulating clothing from the rack while their personal bag is positioned at their side, with visual evidence of movement that suggests placing an item into the bag, consistent with hiding unpaid merchandise. The L1 qty_spike event aligns with this observed multi-frame behavior of concealing an item.","latency_ms":3151.3},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is browsing clothing racks, standing in front of a rack and appearing to examine items. There is no visual evidence of concealment (e.g., putting items into bag/pocket/clothes) or hiding behavior across frames. The L1 event 'qty_spike' with 'handheld_peak>=2' may indicate brief handling but is consistent with normal shopping (e.g., picking up multiple items to compare), not theft. No intent to steal is visible.","latency_ms":3486.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen browsing through clothing items on the rack, picking up and examining garments. There is no visible concealment of merchandise into a bag, pocket, or under clothes across the frames. The behavior aligns with normal shopping activity.","latency_ms":1982.4}]},{"kind":"miss_pos","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_71__qty_spike__15","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"rationale":"The customer is browsing clothing racks, standing in front of merchandise, and appears to be examining items. There is no visual evidence of concealment (e.g., putting items into bag/pocket/clothes) or hiding behavior across the frames. The L1 event 'qty_spike' with 'handheld_peak>=2' may indicate brief handling but does not confirm theft without visible concealment. Since the person remains in the open, interacting with items normally (e.g., looking, possibly touching), this falls under normal shopping behavior.","latency_ms":3364.6,"agreement_hint":"miss_pos","center_ts":665.9666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__qty_spike__15&file=kf_00_664.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__qty_spike__15&file=kf_01_665.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__qty_spike__15&file=kf_02_666.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__qty_spike__15&file=kf_03_667.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a shopper browsing clothing racks with a shoulder bag; no visible concealment into bag, pockets, or clothing is evident across the sequence. The L1 qty_spike is a soft hint only and lacks matching visual concealment evidence.","latency_ms":1122.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the customer uses their open hand to move clothing on the rack while their large shoulder bag is positioned at their side, with visual evidence of the hand moving toward the bag area consistent with hiding an unpaid item; the L1 qty_spike event provides supporting context for potential concealment, matching multi-frame behavior of hiding merchandise in a personal bag.","latency_ms":3954.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is browsing clothing racks, standing in front of merchandise, and appears to be examining items. There is no visual evidence of concealment (e.g., putting items into bag/pocket/clothes) or hiding behavior across the frames. The L1 event 'qty_spike' with 'handheld_peak>=2' may indicate brief handling but does not confirm theft without visible concealment. Since the person remains in the open, interacting with items normally (e.g., looking, possibly touching), this falls under normal shopping behavior.","latency_ms":3364.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is seen browsing through clothing items on the rack, picking up and examining garments. There is no visible concealment of merchandise into a bag, pocket, or under clothes. The behavior appears consistent with normal shopping activity.","latency_ms":1965.9}]},{"kind":"miss_pos","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_8__4","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"rationale":"The customer is actively browsing and handling clothing items on a rack, selecting and examining them in a typical shopping manner. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothes) or intent to steal — the actions are consistent with normal shopping behavior (picking up, holding, inspecting, and likely returning or placing in cart, though cart not visible). L1 event 'qty_spike' alone is insufficient without visual confirmation of concealment; here, the person’s actions remain transparent and non-suspicious.","latency_ms":3321.0,"agreement_hint":"miss_pos","center_ts":170.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__4&file=kf_00_169.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__4&file=kf_01_170.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__4&file=kf_02_170.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__4&file=kf_03_171.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.85,"agreement_hint":"miss_pos","rationale":"The person is seen holding and examining clothing items on hangers in a retail store, with no visible concealment into a bag, pocket, or clothing. The behavior is consistent with normal shopping and browsing.","latency_ms":1219.1},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is picking up, holding, and examining a red garment from a clothing rack, which is normal shopping behavior with no visible concealment of unpaid merchandise.","latency_ms":2701.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing and handling clothing items on a rack, selecting and examining them in a typical shopping manner. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothes) or intent to steal — the actions are consistent with normal shopping behavior (picking up, holding, inspecting, and likely returning or placing in cart, though cart not visible). L1 event 'qty_spike' alone is insufficient without visual confirmation of concealment; here, the person’s actions remain transparent and non-suspicious.","latency_ms":3321.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is examining a red garment by holding it up and looking at it, consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or under clothing, and the L1 event 'qty_spike' does not appear to be supported by clear visual evidence of intent to steal.","latency_ms":2522.4}]},{"kind":"miss_pos","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_8__qty_spike__9","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"rationale":"The customer is actively browsing and handling clothing items on a rack, selecting and examining them in a typical shopping manner. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothes) or intent to steal — the actions are consistent with normal retail browsing behavior. The L1 event 'qty_spike' may reflect multiple items being handled quickly but does not override the clear visual context of examination and selection without hiding.","latency_ms":2488.9,"agreement_hint":"miss_pos","center_ts":170.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__qty_spike__9&file=kf_00_169.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__qty_spike__9&file=kf_01_170.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__qty_spike__9&file=kf_02_170.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__qty_spike__9&file=kf_03_171.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.85,"agreement_hint":"miss_pos","rationale":"The person is seen holding and examining clothing items on hangers in a retail setting, with no visible concealment into a bag, pocket, or clothing. The behavior is consistent with normal shopping and browsing.","latency_ms":1284.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is only picking up, holding, and examining a red garment from a clothing rack across the provided frames, with no action of concealing the item into a bag, pocket, or under clothes. The L1 qty_spike event is a soft hint without matching concealment visual evidence, so normal shopping behavior is confirmed.","latency_ms":3124.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing and handling clothing items on a rack, selecting and examining them in a typical shopping manner. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothes) or intent to steal — the actions are consistent with normal retail browsing behavior. The L1 event 'qty_spike' may reflect multiple items being handled quickly but does not override the clear visual context of examination and selection without hiding.","latency_ms":2488.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is picking up and examining a red garment from the rack, which is consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or under clothing, and no multi-frame intent to hide the item is evident.","latency_ms":1820.4}]}],"keep_ok":[{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"dcsass__demo_dcsass_03__C_2__conceal__0","clip_id":"dcsass__demo_dcsass_03","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with the trajectory evidence showing co-disappearance (item vanishes from view after approach) and high dwell ratio (0.833), strongly suggests the person is concealing an item in their pocket or clothing. The person's hand movements near the hip area across multiple frames (13:09:17–13:09:19) are consistent with hiding merchandise, and the risk score, though low, aligns with this behavior. No visual of payment or return to shelf occurs, and the action is not typical browsing.","latency_ms":3145.7,"agreement_hint":"keep_ok","center_ts":1.9666666666666666,"corpus":"demo","media_url":"/api/media/sample/demo_dcsass_03.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=dcsass__demo_dcsass_03__C_2__conceal__0&file=kf_00_0.83s.jpg","/api/path1_case_keyframe?case_id=dcsass__demo_dcsass_03__C_2__conceal__0&file=kf_01_1.60s.jpg","/api/path1_case_keyframe?case_id=dcsass__demo_dcsass_03__C_2__conceal__0&file=kf_02_2.33s.jpg","/api/path1_case_keyframe?case_id=dcsass__demo_dcsass_03__C_2__conceal__0&file=kf_03_2.97s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The L1 event suggests a concealment into a pocket at the hip, but the provided keyframes are too blurry and low-resolution to visually confirm any item being hidden. The person in the blue cap is seen handling something near their chest/waist, but without clear visual evidence of the item or the concealment action, a definitive label cannot be assigned.","latency_ms":1409.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Multi-frame visual evidence shows a customer (person P#2) moving an item toward their hip pocket, consistent with the L1 conceal event subtype of pocket concealment, indicating hiding an unpaid product on their body.","latency_ms":2886.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with the trajectory evidence showing co-disappearance (item vanishes from view after approach) and high dwell ratio (0.833), strongly suggests the person is concealing an item in their pocket or clothing. The person's hand movements near the hip area across multiple frames (13:09:17–13:09:19) are consistent with hiding merchandise, and the risk score, though low, aligns with this behavior. No visual of payment or return to shelf occurs, and the action is not typical browsing.","latency_ms":3145.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen making a deliberate motion consistent with concealing an item into their pocket or clothing, as indicated by the L1 event 'conceal' and supported by the visual evidence of their hand positioning near their hip area.","latency_ms":2629.2}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting012_x264__C_14__conceal__7","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (1.0) and high dwell ratio (0.833), indicates the customer likely concealed an item in their pocket or waist area. The person’s posture—bending slightly, hand near hip/low torso—and the absence of visible payment or cart placement across multiple frames support concealment intent rather than browsing or checkout. No clear visual of the item being hidden is seen in these frames, but the multi-frame behavioral pattern and L1 metadata strongly suggest unpaid concealment.","latency_ms":3048.4,"agreement_hint":"keep_ok","center_ts":562.7666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_14__conceal__7&file=kf_00_561.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_14__conceal__7&file=kf_01_562.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_14__conceal__7&file=kf_02_563.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_14__conceal__7&file=kf_03_563.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show the person in a position consistent with hiding merchandise near the waist area while browsing the display.","latency_ms":1548.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.85,"agreement_hint":"miss_pos","rationale":"The person in the white shirt is handling and examining fabric products on the store table, which is normal shopping behavior consistent with browsing merchandise, with no visual evidence of concealing unpaid items into a bag, pocket, or under clothes. The L1 conceal event is a soft hint that is not supported by clear visual evidence of hiding merchandise.","latency_ms":3134.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (1.0) and high dwell ratio (0.833), indicates the customer likely concealed an item in their pocket or waist area. The person’s posture—bending slightly, hand near hip/low torso—and the absence of visible payment or cart placement across multiple frames support concealment intent rather than browsing or checkout. No clear visual of the item being hidden is seen in these frames, but the multi-frame behavioral pattern and L1 metadata strongly suggest unpaid concealment.","latency_ms":3048.4},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the foreground is seen placing an item into their pocket, consistent with concealment behavior. The L1 event 'conceal' further supports this inference, as it aligns with the visual evidence of hiding unpaid merchandise.","latency_ms":1749.9}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting012_x264__C_16__conceal__5","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 0.833) indicates the person likely concealed an item under their clothes. The person is seated at a table with fabrics, and their posture and arm movement suggest hiding something—consistent with concealment intent. No payment or visible return to shelf occurs; no clear checkout action. This matches 'conceal_unpaid' per rules: multi-frame hiding behavior, not just browsing.","latency_ms":3244.6,"agreement_hint":"keep_ok","center_ts":441.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_16__conceal__5&file=kf_00_440.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_16__conceal__5&file=kf_01_440.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_16__conceal__5&file=kf_02_441.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_16__conceal__5&file=kf_03_442.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.4,"agreement_hint":"uncertain","rationale":"The keyframes show a person seated at a counter handling fabric and interacting with another person, but no clear concealment into a bag, pocket, or under clothes is visible across the frames. The L1 conceal hint is not corroborated by obvious visual evidence in these images.","latency_ms":1179.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a conceal event under clothes, with model score 0.85, and multi-frame behavior aligns with hiding merchandise on the person's body, matching the conceal_unpaid label criteria.","latency_ms":2964.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 0.833) indicates the person likely concealed an item under their clothes. The person is seated at a table with fabrics, and their posture and arm movement suggest hiding something—consistent with concealment intent. No payment or visible return to shelf occurs; no clear checkout action. This matches 'conceal_unpaid' per rules: multi-frame hiding behavior, not just browsing.","latency_ms":3244.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is engaged in a transaction at the checkout counter, handling items on the table and interacting with the cashier. There is no evidence of concealment or hiding of merchandise.","latency_ms":1807.7}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting012_x264__C_20__conceal__4","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after interaction) and high model score (0.85), strongly indicates the person is concealing merchandise in their pocket or clothing. The multi-frame behavior shows them handling fabric items near the counter, then moving with a posture suggesting hidden placement—consistent with shoplifting intent. No payment or visible return to shelf occurs.","latency_ms":2698.9,"agreement_hint":"keep_ok","center_ts":417.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_20__conceal__4&file=kf_00_416.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_20__conceal__4&file=kf_01_416.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_20__conceal__4&file=kf_02_417.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_20__conceal__4&file=kf_03_418.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a model score of 0.85, and the keyframes show the person in an orange top interacting with merchandise at a display table. While the exact concealment is not perfectly clear in the low-resolution frames, the multi-frame behavior and L1 evidence suggest the person is hiding unpaid merchandise on their body.","latency_ms":1494.8},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the yellow top interacts with merchandise across multiple frames, with L1 event indicating concealment in a hip pocket; multi-frame behavior shows handling of goods consistent with hiding unpaid items, matching the conceal_unpaid criteria.","latency_ms":3008.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after interaction) and high model score (0.85), strongly indicates the person is concealing merchandise in their pocket or clothing. The multi-frame behavior shows them handling fabric items near the counter, then moving with a posture suggesting hidden placement—consistent with shoplifting intent. No payment or visible return to shelf occurs.","latency_ms":2698.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing a large, patterned fabric item into their bag or pocket area near the checkout counter, consistent with concealment behavior. The surrounding context of other shoppers and staff does not contradict this intent.","latency_ms":2191.8}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting012_x264__C_21__conceal__6","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappearance (item vanishes from view after interaction) and high model score (0.85), strongly suggests the person is concealing an item in their pocket or clothing. The multi-frame behavior shows the individual standing near a large fabric display, interacting closely with it, and maintaining a posture consistent with hiding something at the hip. No payment or visible placement into a cart occurs; no clear return to shelf. This aligns with 'conceal_unpaid' per rules: concealment into pocket/clothes inferred across frames, not just a single grab.","latency_ms":3355.0,"agreement_hint":"keep_ok","center_ts":489.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_21__conceal__6&file=kf_00_488.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_21__conceal__6&file=kf_01_488.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_21__conceal__6&file=kf_02_489.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_21__conceal__6&file=kf_03_490.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the yellow and black top is seen handling merchandise at the table and then moving her hands toward her hip/pocket area, consistent with the L1 conceal event (subtype pocket, zone hip). The multi-frame sequence shows her interacting with items and then concealing them on her body rather than carrying them visibly or placing them in a cart.","latency_ms":1443.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment event in the hip pocket zone, with supporting trajectory evidence, and multi-frame behavior aligns with hiding an unpaid item on the person’s body, matching the conceal_unpaid label criteria.","latency_ms":3062.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappearance (item vanishes from view after interaction) and high model score (0.85), strongly suggests the person is concealing an item in their pocket or clothing. The multi-frame behavior shows the individual standing near a large fabric display, interacting closely with it, and maintaining a posture consistent with hiding something at the hip. No payment or visible placement into a cart occurs; no clear return to shelf. This aligns with 'conceal_unpaid' per rules: concealment into pocket/clothes inferred across frames, not just a single grab.","latency_ms":3355.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is examining a large piece of fabric on a table, which is consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or under clothing, and the actions across the frames suggest she is inspecting the item rather than attempting to steal it.","latency_ms":2522.6}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting012_x264__C_34__conceal__8","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (1.0) and dwell ratio 1.0 across 4 frames, indicates the person likely concealed an item in their pocket or waist area. The person is seated near a table with merchandise, and the timing and behavior align with hiding an item without payment. No visual of the actual concealment is seen, but the multi-frame pattern and high model score (0.85) support this inference.","latency_ms":2752.1,"agreement_hint":"keep_ok","center_ts":659.9666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_34__conceal__8&file=kf_00_658.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_34__conceal__8&file=kf_01_659.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_34__conceal__8&file=kf_02_660.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_34__conceal__8&file=kf_03_661.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The L1 event suggests a concealment into a pocket at the hip, but the provided keyframes do not clearly show a person concealing unpaid merchandise. The frames show a shop setting with people browsing and a person seated, but no visible act of hiding an item into clothing or a bag is evident. Without clear visual confirmation of concealment, the label is uncertain.","latency_ms":1560.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The male individual in the white shirt is observed moving his hand toward his hip pocket (consistent with the L1 event's subtype of pocket concealment) across sequential frames, with multi-frame behavior indicating an action to hide an unpaid item in his clothing pocket, matching the conceal_unpaid definition.","latency_ms":3128.7},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (1.0) and dwell ratio 1.0 across 4 frames, indicates the person likely concealed an item in their pocket or waist area. The person is seated near a table with merchandise, and the timing and behavior align with hiding an item without payment. No visual of the actual concealment is seen, but the multi-frame pattern and high model score (0.85) support this inference.","latency_ms":2752.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item into their pocket (as indicated by the L1 event 'conceal' and visual evidence of hand movement toward the hip area), which constitutes hiding unpaid merchandise on their body.","latency_ms":2347.1}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting012_x264__C_3__conceal__1","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 1.0) indicates the person likely concealed an item under their clothes. The person is standing near the counter with a large fabric item being handled by another person, but the keyframe sequence shows no visible payment or return to shelf; instead, the concealment pattern aligns with shoplifting intent. No clear visual of the item being hidden in this specific frame set, but the L1 context strongly supports concealment intent across frames.","latency_ms":3073.4,"agreement_hint":"keep_ok","center_ts":174.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_3__conceal__1&file=kf_00_173.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_3__conceal__1&file=kf_01_174.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_3__conceal__1&file=kf_02_174.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_3__conceal__1&file=kf_03_175.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the yellow top is seen handling merchandise at the display table and then making movements consistent with tucking or hiding an item under their clothing, matching the L1 conceal event subtype 'under_clothes'.","latency_ms":1282.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer is observed manipulating a large golden fabric item, tucking it under their clothing (consistent with the L1 event subtype 'under_clothes') across consecutive frames, showing clear intent to conceal an unpaid product rather than normal shopping activity.","latency_ms":3036.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 1.0) indicates the person likely concealed an item under their clothes. The person is standing near the counter with a large fabric item being handled by another person, but the keyframe sequence shows no visible payment or return to shelf; instead, the concealment pattern aligns with shoplifting intent. No clear visual of the item being hidden in this specific frame set, but the L1 context strongly supports concealment intent across frames.","latency_ms":3073.4},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is standing at a checkout counter with a large item spread out on the counter, appearing to be in the process of paying or completing a transaction. There is no evidence of concealment or hiding of merchandise.","latency_ms":2250.0}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting012_x264__C_5__conceal__0","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event explicitly flags 'conceal' with subtype 'under_clothes', and the visual sequence shows the customer (C#5, P#5) sitting at the counter while the staff member is distracted; the customer's hand is near their waist/hip area where a yellow item (likely the concealed product) is later seen in the staff member's hand. The trajectory evidence indicates 'below_threshold' and 'co_disappear', consistent with hiding an item under clothes. No payment occurs, and the item is not placed in a visible cart or basket. This meets the criteria for 'conceal_unpaid' as it involves hiding merchandise on the body without intent to pay.","latency_ms":4061.8,"agreement_hint":"keep_ok","center_ts":101.96666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_5__conceal__0&file=kf_00_100.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_5__conceal__0&file=kf_01_101.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_5__conceal__0&file=kf_02_102.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_5__conceal__0&file=kf_03_103.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the yellow top is seen seated and repeatedly interacting with an item near their lap/waist area, with the L1 event indicating concealment under clothes. Across the frames, the item is no longer visible on the table or in hand, suggesting it was hidden on the body.","latency_ms":1400.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the person in the white shirt moves a yellow product from the counter and conceals it under their clothing (pants/waist area), matching the L1 conceal event subtype of under_clothes, with multi-frame behavior showing the product being hidden rather than normal shopping or checkout.","latency_ms":3269.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'under_clothes', and the visual sequence shows the customer (C#5, P#5) sitting at the counter while the staff member is distracted; the customer's hand is near their waist/hip area where a yellow item (likely the concealed product) is later seen in the staff member's hand. The trajectory evidence indicates 'below_threshold' and 'co_disappear', consistent with hiding an item under clothes. No payment occurs, and the item is not placed in a visible cart or basket. This meets the criteria for 'conceal_unpaid' as it involves hiding merchandise on the body without intent to pay.","latency_ms":4061.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is seated at a table in what appears to be a restaurant or dining area, interacting with another person who seems to be an employee or server. There is no evidence of concealment, hiding, or shoplifting intent. The behavior is consistent with normal dining and checkout activities.","latency_ms":2111.1}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting012_x264__C_6__conceal__2","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after interaction) and high model score (0.85), strongly indicates the customer is concealing an item in their pocket or clothing. The person's posture and hand movements near the hip area across frames support this, especially since they are not placing the item in a visible cart or basket. No payment is observed, and the context suggests intent to steal rather than browse.","latency_ms":3213.5,"agreement_hint":"keep_ok","center_ts":199.16666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_6__conceal__2&file=kf_00_198.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_6__conceal__2&file=kf_01_198.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_6__conceal__2&file=kf_02_199.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_6__conceal__2&file=kf_03_200.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the yellow top is seen handling merchandise at the display table and then moving their hands toward their hip/pocket area in a manner consistent with concealing an item, matching the L1 conceal event with pocket/hip subtype.","latency_ms":1571.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer (C#6) is observed over multiple frames moving an item toward their hip pocket, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior showing the item being hidden in their clothing pocket.","latency_ms":3468.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after interaction) and high model score (0.85), strongly indicates the customer is concealing an item in their pocket or clothing. The person's posture and hand movements near the hip area across frames support this, especially since they are not placing the item in a visible cart or basket. No payment is observed, and the context suggests intent to steal rather than browse.","latency_ms":3213.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is standing at a checkout counter with merchandise laid out on the table, appearing to be in the process of paying or completing a transaction. There is no visible concealment of items into bags, pockets, or under clothing, and the behavior aligns with normal checkout procedures.","latency_ms":2099.4}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting012_x264__C_9__conceal__3","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after interaction) and high model score (0.85), strongly indicates the person is concealing an item in their pocket or clothing. The multi-frame behavior shows them leaning over the table, interacting with items, then a clear disappearance of the item from visible space—consistent with concealment rather than browsing or checkout. No payment or return to shelf is observed.","latency_ms":2880.0,"agreement_hint":"keep_ok","center_ts":232.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_9__conceal__3&file=kf_00_231.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_9__conceal__3&file=kf_01_232.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_9__conceal__3&file=kf_02_232.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_9__conceal__3&file=kf_03_233.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The keyframes show a person in a yellow top seated at a counter with another person standing nearby, appearing to handle items on the counter. No clear concealment into a bag, pocket, or clothing is visible across the frames, and the L1 conceal event is not corroborated by obvious visual evidence.","latency_ms":1216.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 conceal event with subtype 'pocket' (hip zone) aligns with multi-frame visual context of the individual's actions, showing behavior consistent with hiding an unpaid item on their person, matching the conceal_unpaid label criteria.","latency_ms":2285.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after interaction) and high model score (0.85), strongly indicates the person is concealing an item in their pocket or clothing. The multi-frame behavior shows them leaning over the table, interacting with items, then a clear disappearance of the item from visible space—consistent with concealment rather than browsing or checkout. No payment or return to shelf is observed.","latency_ms":2880.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The individual is seated at a counter, interacting with a salesperson who appears to be processing a transaction. There are no visible signs of concealment or hiding of merchandise, and the behavior aligns with a normal checkout process.","latency_ms":2280.8}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting014_x264__C_1__conceal__1","clip_id":"ucf_theft__Shoplifting014_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' and zone 'hip', and the visual sequence shows the person (in red/orange attire) turning away from the shelf, bringing their hands toward their hip area while holding a dark item, consistent with pocketing or concealing merchandise under clothing. The multi-frame behavior supports concealment intent rather than browsing or checkout. No payment is observed, and the risk score, though low, aligns with the visual evidence of hiding an item on the body.","latency_ms":2899.1,"agreement_hint":"keep_ok","center_ts":754.7666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting014_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_1__conceal__1&file=kf_00_753.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_1__conceal__1&file=kf_01_754.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_1__conceal__1&file=kf_02_755.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_1__conceal__1&file=kf_03_755.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the orange outfit is seen moving through the store and appears to be concealing an item under her clothing or in a bag, consistent with the L1 conceal event indicating a pocket/hip concealment.","latency_ms":1336.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the patterned top and red pants is observed moving an item from the shelf area toward their hip pocket across consecutive frames, matching the L1 conceal event subtype of pocket concealment, with visual evidence of hiding an unpaid product on their person.","latency_ms":2729.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' and zone 'hip', and the visual sequence shows the person (in red/orange attire) turning away from the shelf, bringing their hands toward their hip area while holding a dark item, consistent with pocketing or concealing merchandise under clothing. The multi-frame behavior supports concealment intent rather than browsing or checkout. No payment is observed, and the risk score, though low, aligns with the visual evidence of hiding an item on the body.","latency_ms":2899.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their pocket or waistband area, which is consistent with concealment behavior. This action, combined with the L1 event 'conceal' and the visual evidence of the item being hidden on the body, strongly suggests intent to steal unpaid merchandise.","latency_ms":1722.4}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting014_x264__C_4__conceal__0","clip_id":"ucf_theft__Shoplifting014_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 0.6667) indicates the person likely concealed an item under clothing. In the frames, the person is seen adjusting her headscarf/face area while holding a garment, which aligns with hiding an item under clothes — a classic shoplifting tactic. No payment or return to shelf is observed, and the behavior is inconsistent with normal browsing.","latency_ms":2715.5,"agreement_hint":"keep_ok","center_ts":87.96666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting014_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_4__conceal__0&file=kf_00_86.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_4__conceal__0&file=kf_01_87.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_4__conceal__0&file=kf_02_88.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_4__conceal__0&file=kf_03_89.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The person in red is seen handling merchandise near a rack and then turning away while adjusting her clothing, consistent with concealing an item under her clothes. The L1 event 'conceal' with subtype 'under_clothes' and high model score supports this, and the multi-frame sequence shows a clear hiding action rather than normal browsing.","latency_ms":1563.0},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer interacts with clothing on a rack, and multi-frame behavior shows an action consistent with hiding an item under her clothing (matching the L1 conceal event subtype of under_clothes), with no visible payment action or return to shelf for the item, indicating concealment of unpaid merchandise.","latency_ms":3259.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 0.6667) indicates the person likely concealed an item under clothing. In the frames, the person is seen adjusting her headscarf/face area while holding a garment, which aligns with hiding an item under clothes — a classic shoplifting tactic. No payment or return to shelf is observed, and the behavior is inconsistent with normal browsing.","latency_ms":2715.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item under their clothing, which is consistent with concealment behavior. The L1 event 'conceal' further supports this inference.","latency_ms":2596.6}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting014_x264__C_77__conceal__2","clip_id":"ucf_theft__Shoplifting014_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with the trajectory evidence showing co-disappearance (item vanishes from visible hand into hip area) and high dwell ratio (0.8), strongly indicates concealment. The person’s posture and movement—reaching toward the hip while holding an item in the other hand, then turning away without placing it in a cart or basket—supports intent to hide unpaid merchandise. No payment or checkout is observed.","latency_ms":2693.6,"agreement_hint":"keep_ok","center_ts":1947.9666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting014_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_77__conceal__2&file=kf_00_1946.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_77__conceal__2&file=kf_01_1947.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_77__conceal__2&file=kf_02_1948.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_77__conceal__2&file=kf_03_1949.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person is seen holding a dark item and moving it toward her hip/pocket area while turning away from the camera, consistent with the L1 conceal event indicating a pocket concealment at the hip. The multi-frame sequence shows the item disappearing from view near her body, suggesting unpaid concealment rather than normal browsing.","latency_ms":1657.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Multi-frame visual evidence shows the customer moving an item toward their hip pocket (consistent with the L1 conceal event subtype of pocket), hiding the item from view as part of a shoplifting-related concealment action.","latency_ms":2608.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with the trajectory evidence showing co-disappearance (item vanishes from visible hand into hip area) and high dwell ratio (0.8), strongly indicates concealment. The person’s posture and movement—reaching toward the hip while holding an item in the other hand, then turning away without placing it in a cart or basket—supports intent to hide unpaid merchandise. No payment or checkout is observed.","latency_ms":2693.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their pocket, which is consistent with concealment behavior. The L1 event 'conceal' further supports this inference.","latency_ms":1917.0}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting030_x264__C_10__conceal__5","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (1.0) and high dwell ratio (0.833), indicates the person likely concealed an item in their pocket or waist area. The person’s posture and hand movement near the hip area across multiple frames support this, and the risk score is low but the visual trajectory pattern strongly suggests concealment rather than normal browsing. No payment or return to shelf is observed.","latency_ms":3096.8,"agreement_hint":"keep_ok","center_ts":222.76666666666668,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_10__conceal__5&file=kf_00_221.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_10__conceal__5&file=kf_01_222.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_10__conceal__5&file=kf_02_223.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_10__conceal__5&file=kf_03_223.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.4,"agreement_hint":"uncertain","rationale":"The overhead frames show multiple shoppers near a display counter, but no clear concealment into a pocket, bag, or clothing is visible. The L1 conceal hint is not sufficiently supported by the visuals, so the action cannot be confirmed.","latency_ms":1275.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#10) is observed moving an item toward their hip pocket across sequential frames, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior consistent with hiding an unpaid product.","latency_ms":2425.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (1.0) and high dwell ratio (0.833), indicates the person likely concealed an item in their pocket or waist area. The person’s posture and hand movement near the hip area across multiple frames support this, and the risk score is low but the visual trajectory pattern strongly suggests concealment rather than normal browsing. No payment or return to shelf is observed.","latency_ms":3096.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their backpack, which is a clear act of concealing unpaid merchandise. This behavior aligns with the 'conceal_unpaid' label as it involves hiding an item on their person without proceeding to checkout.","latency_ms":2385.8}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting030_x264__C_11__1","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer in the blue shirt (C#11) is seen reaching toward a shelf, then quickly moving with a sudden motion while holding an item close to their body. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, and the person’s posture—bending slightly, keeping arms close, and moving away from the display without placing the item in a visible cart or basket—indicates concealment intent. No clear checkout or return action is observed, and the behavior deviates from normal browsing. The presence of other customers nearby does not negate the suspicious multi-frame pattern of hiding merchandise.","latency_ms":3507.0,"agreement_hint":"keep_ok","center_ts":203.16666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__1&file=kf_00_202.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__1&file=kf_01_202.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__1&file=kf_02_203.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__1&file=kf_03_204.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show multiple people in a retail environment, with some individuals holding or examining items near shelves and counters. There is no clear visual evidence of concealing unpaid merchandise into bags, pockets, or clothing across the frames. The L1 event is a soft qty_spike hint without matching visual concealment evidence, so the behavior appears to be normal shopping or browsing.","latency_ms":1452.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the sleeveless patterned top moves an item from the shelf into their brown bag across sequential frames, hiding the product in the bag rather than placing it visibly for checkout or return, matching the definition of concealing unpaid merchandise.","latency_ms":3074.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer in the blue shirt (C#11) is seen reaching toward a shelf, then quickly moving with a sudden motion while holding an item close to their body. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, and the person’s posture—bending slightly, keeping arms close, and moving away from the display without placing the item in a visible cart or basket—indicates concealment intent. No clear checkout or return action is observed, and the behavior deviates from normal browsing. The presence of other customers nearby does not negate the suspicious multi-frame pattern of hiding merchandise.","latency_ms":3507.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"steal","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person in the orange shirt is seen concealing an item under their arm while standing near the checkout counter, indicating clear intent to shoplift. This behavior aligns with the 'steal' label as it shows concealment of unpaid merchandise.","latency_ms":2066.3}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting030_x264__C_11__conceal__2","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view) and high model score (0.85), strongly indicates the person is hiding an item in their pocket or clothing. The multi-frame behavior shows the individual leaning forward and making a motion consistent with concealing an object at the hip, which aligns with the 'conceal_unpaid' label per rules—specifically, concealment into clothing/pocket, not just holding. No payment or visible return to shelf occurs.","latency_ms":2794.5,"agreement_hint":"keep_ok","center_ts":124.76666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__conceal__2&file=kf_00_123.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__conceal__2&file=kf_01_124.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__conceal__2&file=kf_02_125.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__conceal__2&file=kf_03_125.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The L1 event suggests a concealment into a pocket at the hip, but the provided keyframes are too low-resolution and distant to visually confirm any item being hidden. No clear multi-frame concealment behavior is discernible from the images alone.","latency_ms":1375.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#11) is observed in multi-frame behavior consistent with concealing an unpaid item in their hip pocket, matching the L1 conceal event subtype of pocket concealment, with visual trajectory and item evidence supporting the hiding action across frames.","latency_ms":2473.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view) and high model score (0.85), strongly indicates the person is hiding an item in their pocket or clothing. The multi-frame behavior shows the individual leaning forward and making a motion consistent with concealing an object at the hip, which aligns with the 'conceal_unpaid' label per rules—specifically, concealment into clothing/pocket, not just holding. No payment or visible return to shelf occurs.","latency_ms":2794.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.95,"agreement_hint":"keep_ok","rationale":"The individual is seen bending over and placing an item into their waistband or pocket area, consistent with concealing unpaid merchandise. This behavior aligns with the 'conceal' L1 event and demonstrates clear intent to hide the item from view.","latency_ms":2831.2}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting030_x264__C_11__qty_spike__4","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer in the blue shirt (C#11) is seen reaching into a display area and then quickly moving toward their body while holding an item. In the final frame, they appear to be tucking or hiding the item under their clothing or into a bag, consistent with concealment behavior. The L1 event 'qty_spike' and 'taken_proxy>=2' support multiple items being taken, and the multi-frame sequence shows intent to hide rather than return or place in cart. No visible payment occurs, and the action is inconsistent with normal browsing.","latency_ms":2923.5,"agreement_hint":"keep_ok","center_ts":203.16666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__qty_spike__4&file=kf_00_202.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__qty_spike__4&file=kf_01_202.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__qty_spike__4&file=kf_02_203.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__qty_spike__4&file=kf_03_204.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show multiple shoppers in a store, with individuals holding bags and items, but no clear visual evidence of concealing unpaid merchandise into pockets, bags, or clothing. The L1 qty_spike event is a soft hint and not sufficient without matching visual concealment.","latency_ms":1301.1},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the sleeveless patterned top moves their arm from reaching toward merchandise on the shelf to tucking an item into their brown bag across multiple consecutive frames, demonstrating clear concealment of an unpaid product.","latency_ms":2149.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer in the blue shirt (C#11) is seen reaching into a display area and then quickly moving toward their body while holding an item. In the final frame, they appear to be tucking or hiding the item under their clothing or into a bag, consistent with concealment behavior. The L1 event 'qty_spike' and 'taken_proxy>=2' support multiple items being taken, and the multi-frame sequence shows intent to hide rather than return or place in cart. No visible payment occurs, and the action is inconsistent with normal browsing.","latency_ms":2923.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"steal","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the blue shirt is seen placing an item into their waistband or pocket area, which is consistent with concealment behavior. This action, combined with the proximity to the checkout counter and the presence of other shoppers, strongly suggests an intent to shoplift.","latency_ms":2136.6}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting030_x264__C_1__0","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer (in the plaid shirt, center-right) is seen bending down and placing an item into a bag or pocket area near their waist/hip while others are distracted. The L1 event 'qty_spike' and 'handheld_peak>=2' suggest multiple items were handled quickly, and the body posture (bending, hiding motion) combined with the context of a retail store strongly indicates concealment of unpaid merchandise. This matches the definition of 'conceal_unpaid' — hiding on the body — not just browsing.","latency_ms":2728.7,"agreement_hint":"keep_ok","center_ts":158.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__0&file=kf_00_157.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__0&file=kf_01_158.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__0&file=kf_02_158.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__0&file=kf_03_159.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show individuals standing and interacting near a display counter, with no visible concealment of merchandise into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding intent across frames.","latency_ms":1161.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the green plaid shirt adjusts their bag in a sequence of frames, with the bag appearing to shift position toward their torso in a way consistent with hiding an unpaid item, paired with the L1 qty_spike event indicating a potential product take.","latency_ms":3069.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (in the plaid shirt, center-right) is seen bending down and placing an item into a bag or pocket area near their waist/hip while others are distracted. The L1 event 'qty_spike' and 'handheld_peak>=2' suggest multiple items were handled quickly, and the body posture (bending, hiding motion) combined with the context of a retail store strongly indicates concealment of unpaid merchandise. This matches the definition of 'conceal_unpaid' — hiding on the body — not just browsing.","latency_ms":2728.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen holding an item in their hand and appears to be examining or considering it, consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or clothing, and the actions do not indicate shoplifting intent.","latency_ms":2089.1}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting030_x264__C_1__conceal__1","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view) and high model score (0.85), strongly indicates the person is concealing an item in their pocket or clothing. The multi-frame behavior shows them standing near the counter while making a motion consistent with hiding an item, and no payment is observed. This aligns with 'conceal_unpaid' per rules: concealment into body/pocket is confirmed by both visual context and L1 metadata.","latency_ms":3152.2,"agreement_hint":"keep_ok","center_ts":92.76666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__conceal__1&file=kf_00_91.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__conceal__1&file=kf_01_92.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__conceal__1&file=kf_02_93.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__conceal__1&file=kf_03_93.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show a person in the foreground with a bag and hand near the hip area, consistent with hiding merchandise. While the visual evidence is not perfectly clear, the combination of the L1 conceal event and the observed posture supports concealment of unpaid merchandise.","latency_ms":1447.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#1) is observed moving an item toward their hip pocket across sequential frames, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior indicating hiding an unpaid product rather than normal shopping activity.","latency_ms":3199.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view) and high model score (0.85), strongly indicates the person is concealing an item in their pocket or clothing. The multi-frame behavior shows them standing near the counter while making a motion consistent with hiding an item, and no payment is observed. This aligns with 'conceal_unpaid' per rules: concealment into body/pocket is confirmed by both visual context and L1 metadata.","latency_ms":3152.2},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item into their pocket, which is a clear act of concealment. This behavior aligns with the 'conceal' event type and indicates an intent to steal unpaid merchandise.","latency_ms":1637.5}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting030_x264__C_1__qty_spike__3","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer (in blue shirt) is seen bending down and reaching toward the floor near their feet while holding a large brown bag. In the context of the L1 event 'qty_spike' and 'handheld_peak>=2', combined with the posture suggesting an attempt to hide or retrieve an item, this behavior strongly indicates concealment of unpaid merchandise. The person’s hand movement near the bag and lower body suggests placing or retrieving an item into the bag without paying. No clear checkout or return action is observed.","latency_ms":2898.2,"agreement_hint":"keep_ok","center_ts":158.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__qty_spike__3&file=kf_00_157.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__qty_spike__3&file=kf_01_158.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__qty_spike__3&file=kf_02_158.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__qty_spike__3&file=kf_03_159.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show multiple people in a retail environment, with some individuals holding or examining items near a display counter. There is no clear visual evidence of a person concealing unpaid merchandise into a bag, pocket, or clothing across the frames. The L1 event is a soft qty_spike hint, but the visuals do not confirm concealment or shoplifting intent.","latency_ms":2239.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the green plaid shirt adjusts their bag in a sequence of frames, with the bag positioned to conceal items, consistent with hiding unpaid merchandise. The L1 qty_spike event provides additional soft context supporting potential concealment, and the multi-frame behavior shows intent to hide items rather than normal browsing.","latency_ms":2861.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (in blue shirt) is seen bending down and reaching toward the floor near their feet while holding a large brown bag. In the context of the L1 event 'qty_spike' and 'handheld_peak>=2', combined with the posture suggesting an attempt to hide or retrieve an item, this behavior strongly indicates concealment of unpaid merchandise. The person’s hand movement near the bag and lower body suggests placing or retrieving an item into the bag without paying. No clear checkout or return action is observed.","latency_ms":2898.2},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen holding and examining a product in their hand, consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or under clothing, and the actions appear to be part of a typical browsing process.","latency_ms":3339.3}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting030_x264__C_20__conceal__6","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event explicitly labels 'conceal' with subtype 'pocket' and zone 'hip', and the trajectory evidence shows high dwell ratio (0.833) and co-disappear (1.0), indicating the item was hidden on the person's body. The multi-frame behavior shows the customer in close proximity to a display, then moving away with no visible payment or cart placement, consistent with concealment intent. No checkout or return is observed.","latency_ms":2164.7,"agreement_hint":"keep_ok","center_ts":313.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_20__conceal__6&file=kf_00_312.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_20__conceal__6&file=kf_01_313.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_20__conceal__6&file=kf_02_313.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_20__conceal__6&file=kf_03_314.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show a person in a red top and dark pants near a display counter with a hand-to-hip motion consistent with hiding merchandise. While the visual evidence is not perfectly clear, the multi-frame behavior and L1 context support concealment.","latency_ms":1353.1},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the red shirt performs a sequence of actions consistent with concealing an unpaid item: they bend down near the shelf area, then move their hands toward their hip pocket (matching the L1 event's subtype of pocket concealment), with multi-frame behavior showing the action of hiding an item on their person rather than normal browsing or checkout.","latency_ms":2916.7},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly labels 'conceal' with subtype 'pocket' and zone 'hip', and the trajectory evidence shows high dwell ratio (0.833) and co-disappear (1.0), indicating the item was hidden on the person's body. The multi-frame behavior shows the customer in close proximity to a display, then moving away with no visible payment or cart placement, consistent with concealment intent. No checkout or return is observed.","latency_ms":2164.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their pocket, which is a clear act of concealment. This behavior aligns with the 'conceal_unpaid' label as it indicates an intent to hide merchandise without paying.","latency_ms":1882.9}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting030_x264__C_28__conceal__7","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' at the hip zone, and the trajectory analysis shows a high co-disappear score (1.0) and dwell ratio (1.0), indicating the item was hidden on the person's body rather than placed in a visible bag or cart. Although no direct visual of the item being pocketed is seen in these frames, the multi-frame behavior (approach, pause at hip, then move away without placing in cart) combined with the strong L1 evidence supports concealment intent. The risk score is low but the model and trajectory scores are high, and the weak label is 'positive' for theft.","latency_ms":2981.7,"agreement_hint":"keep_ok","center_ts":363.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_28__conceal__7&file=kf_00_362.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_28__conceal__7&file=kf_01_362.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_28__conceal__7&file=kf_02_363.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_28__conceal__7&file=kf_03_364.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.3,"agreement_hint":"uncertain","rationale":"The keyframes show multiple people in a store, but no clear visual evidence of a person concealing unpaid merchandise into a bag, pocket, or clothing. The L1 conceal event is a soft hint and cannot be verified from the provided frames.","latency_ms":852.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the light blue shirt performs a sequence of actions across frames: moving toward the right-side display, bending down toward their hip area (matching the L1 event's subtype of pocket concealment), consistent with hiding an unpaid item on their person. The multi-frame behavior aligns with concealment intent rather than normal shopping activity.","latency_ms":3302.3},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' at the hip zone, and the trajectory analysis shows a high co-disappear score (1.0) and dwell ratio (1.0), indicating the item was hidden on the person's body rather than placed in a visible bag or cart. Although no direct visual of the item being pocketed is seen in these frames, the multi-frame behavior (approach, pause at hip, then move away without placing in cart) combined with the strong L1 evidence supports concealment intent. The risk score is low but the model and trajectory scores are high, and the weak label is 'positive' for theft.","latency_ms":2981.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the red top is seen placing an item into their pocket, consistent with concealment behavior. This action aligns with the L1 event 'conceal' and indicates intent to hide unpaid merchandise.","latency_ms":2449.6}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting030_x264__C_2__conceal__0","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The person (P#2, red top) is crouched near a display counter and appears to be placing an item under their clothing or into a hidden location, consistent with the L1 event 'conceal' and meta subtype 'under_clothes'. The posture, prolonged crouch, and lack of visible payment or return to shelf indicate intent to conceal unpaid merchandise. This matches the definition of 'conceal_unpaid' as hiding items on the body across multiple frames.","latency_ms":2525.1,"agreement_hint":"keep_ok","center_ts":16.766666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_2__conceal__0&file=kf_00_15.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_2__conceal__0&file=kf_01_16.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_2__conceal__0&file=kf_02_17.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_2__conceal__0&file=kf_03_17.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the red shirt is seen bending down and interacting with merchandise in a manner consistent with concealing items under clothing or in a bag, as indicated by the L1 event subtype 'under_clothes' and the visual evidence of the person's posture and actions across multiple frames.","latency_ms":1312.8},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the red shirt is holding a product against their torso under their clothing, consistent with multi-frame behavior of concealing an unpaid item, matching the L1 conceal event subtype of under_clothes.","latency_ms":2999.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person (P#2, red top) is crouched near a display counter and appears to be placing an item under their clothing or into a hidden location, consistent with the L1 event 'conceal' and meta subtype 'under_clothes'. The posture, prolonged crouch, and lack of visible payment or return to shelf indicate intent to conceal unpaid merchandise. This matches the definition of 'conceal_unpaid' as hiding items on the body across multiple frames.","latency_ms":2525.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is crouched near the checkout counter, with their hands positioned in a way that suggests they are concealing an item under their clothing or in a hidden location. This behavior aligns with the 'under_clothes' concealment pattern indicated by the L1 event and visual evidence.","latency_ms":2537.9}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting039_x264__C_2__conceal__0","clip_id":"ucf_theft__Shoplifting039_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappearance (item vanishes from view) and high score (0.759), strongly indicates the person concealed an item in their pocket or clothing. The person's posture and movement toward the exit without proceeding to checkout support this. No visual of the item being placed in a bag or cart, but the 'pocket' subtype and high confidence in concealment align with 'conceal_unpaid'.","latency_ms":2583.0,"agreement_hint":"keep_ok","center_ts":10.766666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting039_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__conceal__0&file=kf_00_9.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__conceal__0&file=kf_01_10.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__conceal__0&file=kf_02_11.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__conceal__0&file=kf_03_11.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The keyframes show a person walking through the store, but no clear concealment of merchandise into a bag, pocket, or clothing is visible. The L1 event suggests a concealment at the hip, but the visual evidence does not confirm this action across the frames.","latency_ms":1074.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual is observed moving from the center of the store to the right-side shelf area, with their hand positioned at their hip (matching the L1 conceal event subtype of pocket) across sequential frames, and exits the frame after this action, consistent with hiding an unpaid item in their clothing.","latency_ms":2033.7},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappearance (item vanishes from view) and high score (0.759), strongly indicates the person concealed an item in their pocket or clothing. The person's posture and movement toward the exit without proceeding to checkout support this. No visual of the item being placed in a bag or cart, but the 'pocket' subtype and high confidence in concealment align with 'conceal_unpaid'.","latency_ms":2583.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen concealing an item into their pocket (as indicated by the L1 event 'conceal' with subtype 'pocket'), which aligns with behavior consistent with shoplifting intent. The person's actions across the frames suggest an attempt to hide merchandise without paying.","latency_ms":1958.6}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_10__conceal__3","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high trajectory score (0.6678) + co_disappear=1.0 across 6 frames strongly indicates concealment under clothes. The person's posture (bending, hand near waist/hip area) and the context of being in a clothing store support intent to hide merchandise without payment. No visible checkout or return actions occur.","latency_ms":2858.8,"agreement_hint":"keep_ok","center_ts":41.56666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__conceal__3&file=kf_00_40.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__conceal__3&file=kf_01_41.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__conceal__3&file=kf_02_41.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__conceal__3&file=kf_03_42.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action under clothes, and the multi-frame sequence shows a person in the foreground with a white top and dark hair whose body orientation and hand movements are consistent with hiding an item near the waistband or under clothing while browsing. The concealment is not fully visible due to occlusion, but the behavior aligns with the L1 conceal hint and the trajectory evidence of item disappearance.","latency_ms":1794.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the white long-sleeve shirt repeatedly manipulates clothing near their torso, with multi-frame behavior showing actions consistent with hiding an item under their clothing, matching the L1 conceal event subtype of under_clothes.","latency_ms":3242.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high trajectory score (0.6678) + co_disappear=1.0 across 6 frames strongly indicates concealment under clothes. The person's posture (bending, hand near waist/hip area) and the context of being in a clothing store support intent to hide merchandise without payment. No visible checkout or return actions occur.","latency_ms":2858.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen picking up and examining clothing items, which is consistent with normal shopping behavior. There is no visible concealment of merchandise into a bag, pocket, or under clothes across the frames.","latency_ms":2072.5}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_29__conceal__5","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 1.0) indicates the person likely concealed an item under clothing. The person’s posture—bending slightly, hand near waist/hip area, and holding a bag while standing close to others—supports concealment intent. No visual of the item being placed in a bag or pocket is seen, but the multi-frame behavior (dwell, co-disappear, and lack of visible re-emergence) strongly suggests unpaid concealment. This aligns with the rule that only steal/conceal_unpaid when visuals show concealment into bag/pocket/clothes or clear multi-frame hiding intent.","latency_ms":3463.5,"agreement_hint":"keep_ok","center_ts":146.76666666666668,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__conceal__5&file=kf_00_145.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__conceal__5&file=kf_01_146.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__conceal__5&file=kf_02_147.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__conceal__5&file=kf_03_147.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action under clothes, and the multi-frame sequence shows a person in the foreground handling merchandise near their waistline, consistent with hiding unpaid items.","latency_ms":1489.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual with dark hair and white top is observed moving a clothing item toward their underclothes (midsection) across sequential frames, consistent with hiding an unpaid product under clothing, matching the L1 conceal event subtype of under_clothes.","latency_ms":2778.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 1.0) indicates the person likely concealed an item under clothing. The person’s posture—bending slightly, hand near waist/hip area, and holding a bag while standing close to others—supports concealment intent. No visual of the item being placed in a bag or pocket is seen, but the multi-frame behavior (dwell, co-disappear, and lack of visible re-emergence) strongly suggests unpaid concealment. This aligns with the rule that only steal/conceal_unpaid when visuals show concealment into bag/pocket/clothes or clear multi-frame hiding intent.","latency_ms":3463.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item under their clothing, which is consistent with concealment behavior. This action aligns with the L1 event 'conceal' and indicates an intent to hide unpaid merchandise.","latency_ms":1618.3}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_3__conceal__13","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' at hip level, and the trajectory analysis shows co-disappearance (item vanishes from view after interaction), dwell ratio of 1.0, and high model score (0.85). The person's behavior across frames shows them interacting with merchandise near the hip area, consistent with hiding an item in a pocket or under clothing, without placing it in a visible cart or basket. This aligns with 'conceal_unpaid' as defined: hiding product on the body with clear intent to avoid payment.","latency_ms":2901.1,"agreement_hint":"keep_ok","center_ts":485.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_3__conceal__13&file=kf_00_484.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_3__conceal__13&file=kf_01_484.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_3__conceal__13&file=kf_02_485.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_3__conceal__13&file=kf_03_486.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the multi-frame sequence shows the person handling merchandise in a manner consistent with hiding it on their body rather than browsing or checking out.","latency_ms":1564.4},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the white top is observed moving a purple garment from a display rack and concealing it under their outer clothing at their hip, consistent with the L1 conceal event subtype of pocket/hip concealment, with multi-frame behavior showing the garment being hidden on their body rather than normal shopping activity.","latency_ms":3162.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' at hip level, and the trajectory analysis shows co-disappearance (item vanishes from view after interaction), dwell ratio of 1.0, and high model score (0.85). The person's behavior across frames shows them interacting with merchandise near the hip area, consistent with hiding an item in a pocket or under clothing, without placing it in a visible cart or basket. This aligns with 'conceal_unpaid' as defined: hiding product on the body with clear intent to avoid payment.","latency_ms":2901.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen picking up a purple garment and placing it into their bag, which aligns with the 'conceal' L1 event indicating intent to hide unpaid merchandise. The behavior across frames shows clear concealment into the bag.","latency_ms":2400.8}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_40__conceal__10","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after interaction) and high model score (0.85), strongly indicates the person concealed an item in their pocket or clothing. The multi-frame behavior shows them interacting with merchandise near the hip area, consistent with hiding an unpaid item. No visual of payment or return to shelf is observed.","latency_ms":2528.7,"agreement_hint":"keep_ok","center_ts":396.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_40__conceal__10&file=kf_00_395.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_40__conceal__10&file=kf_01_396.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_40__conceal__10&file=kf_02_396.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_40__conceal__10&file=kf_03_397.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the multi-frame sequence shows a person in the foreground interacting with merchandise in a manner consistent with hiding an item on their body.","latency_ms":1416.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#40) is observed over multiple frames moving an item toward their hip pocket (consistent with the L1 conceal event subtype of pocket), with multi-frame behavior showing intent to hide the item on their body rather than browse or checkout.","latency_ms":3646.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after interaction) and high model score (0.85), strongly indicates the person concealed an item in their pocket or clothing. The multi-frame behavior shows them interacting with merchandise near the hip area, consistent with hiding an unpaid item. No visual of payment or return to shelf is observed.","latency_ms":2528.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item into a bag or pocket area near their hip, consistent with concealment behavior. This action aligns with the L1 event 'conceal' and is supported by visual evidence across multiple frames.","latency_ms":2239.8}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_48__5","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.8,"rationale":"The customer (C#48) is seen browsing and then, in the final frames, appears to be placing an item into a bag or pocket while turning away from the rack—consistent with concealment behavior. The L1 event 'qty_spike' and 'taken_proxy>=2' support multiple items being handled, and the multi-frame sequence shows intent to hide merchandise without paying. No visible checkout or return action occurs.","latency_ms":2025.5,"agreement_hint":"keep_ok","center_ts":444.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__5&file=kf_00_443.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__5&file=kf_01_444.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__5&file=kf_02_444.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__5&file=kf_03_445.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks without any visible concealment into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1243.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The woman in the white top is seen holding a dark garment and moving it toward her body/back area across sequential frames, consistent with hiding an unpaid product, supported by the L1 qty_spike event indicating a potential take of multiple items.","latency_ms":2945.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.8,"agreement_hint":"keep_ok","rationale":"The customer (C#48) is seen browsing and then, in the final frames, appears to be placing an item into a bag or pocket while turning away from the rack—consistent with concealment behavior. The L1 event 'qty_spike' and 'taken_proxy>=2' support multiple items being handled, and the multi-frame sequence shows intent to hide merchandise without paying. No visible checkout or return action occurs.","latency_ms":2025.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen holding a garment close to their body and appears to be concealing it under their top or into their bag, consistent with shoplifting intent across multiple frames.","latency_ms":2868.3}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_48__conceal__11","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with high trajectory score (0.7429) and co-disappear signal (1.0), indicates the person likely concealed an item in their hip/pocket area. The person's body language—hand moving toward the hip area while walking away from the rack—and the context of being in a clothing store support this. No visual evidence shows the item being placed in a bag or returned to a shelf, and the risk score is low but the meta data strongly suggests concealment intent. This aligns with 'conceal_unpaid' as defined: hiding merchandise on the body without payment.","latency_ms":3013.8,"agreement_hint":"keep_ok","center_ts":439.96666666666664,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__conceal__11&file=kf_00_438.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__conceal__11&file=kf_01_439.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__conceal__11&file=kf_02_440.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__conceal__11&file=kf_03_441.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The keyframes show a woman in a white top and blue jeans moving through the store and then reaching toward her waistband/hip area in a manner consistent with concealing an item, matching the L1 conceal event (subtype: pocket, zone: hip). The multi-frame sequence captures the concealment motion rather than mere browsing.","latency_ms":1557.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#48) is observed over multiple frames moving their hand toward their hip pocket (per L1 event subtype: pocket, zone: hip) while handling clothing, consistent with hiding an unpaid item on their person, matching the conceal_unpaid criteria of hiding merchandise in a pocket/on the body.","latency_ms":4239.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with high trajectory score (0.7429) and co-disappear signal (1.0), indicates the person likely concealed an item in their hip/pocket area. The person's body language—hand moving toward the hip area while walking away from the rack—and the context of being in a clothing store support this. No visual evidence shows the item being placed in a bag or returned to a shelf, and the risk score is low but the meta data strongly suggests concealment intent. This aligns with 'conceal_unpaid' as defined: hiding merchandise on the body without payment.","latency_ms":3013.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their front pocket, which is a clear act of concealment. This behavior aligns with the 'conceal_unpaid' label as it indicates an intent to hide merchandise without paying.","latency_ms":2743.8}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_48__qty_spike__12","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer (C#48) is seen browsing and then, in the final frames, appears to be placing an item into a bag or pocket while turning away from the rack—consistent with concealment behavior. The L1 event 'qty_spike' with taken_proxy=2 and take_burst>=2/25s supports multiple items being handled quickly, and the visual sequence shows her moving toward the exit with a bag that may contain unpaid merchandise. No clear checkout or return action is observed.","latency_ms":2945.0,"agreement_hint":"keep_ok","center_ts":444.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__qty_spike__12&file=kf_00_443.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__qty_spike__12&file=kf_01_444.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__qty_spike__12&file=kf_02_444.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__qty_spike__12&file=kf_03_445.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The keyframes show customers browsing and handling clothing on racks without any visible concealment into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding merchandise.","latency_ms":1783.8},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The woman in the white top is seen holding a dark bag and moving toward her torso/side, with multi-frame behavior showing she is concealing an item (consistent with hiding unpaid merchandise) rather than normal shopping actions like examining or placing items in a cart. The L1 qty_spike event aligns with this observed concealment behavior.","latency_ms":2825.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#48) is seen browsing and then, in the final frames, appears to be placing an item into a bag or pocket while turning away from the rack—consistent with concealment behavior. The L1 event 'qty_spike' with taken_proxy=2 and take_burst>=2/25s supports multiple items being handled quickly, and the visual sequence shows her moving toward the exit with a bag that may contain unpaid merchandise. No clear checkout or return action is observed.","latency_ms":2945.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person in the blue top is seen placing an item into her bag or under her clothing while browsing, which indicates an intent to conceal unpaid merchandise. This behavior aligns with shoplifting intent across multiple frames.","latency_ms":1846.4}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_4__conceal__0","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view) and high score (0.6748), indicates the person is hiding an item on their person. The multi-frame behavior shows the individual moving with a bag or item near their hip, consistent with concealment into pocket or under clothing. No payment or return to shelf is observed, supporting unpaid concealment intent.","latency_ms":2614.8,"agreement_hint":"keep_ok","center_ts":5.566666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__conceal__0&file=kf_00_4.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__conceal__0&file=kf_01_5.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__conceal__0&file=kf_02_5.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__conceal__0&file=kf_03_6.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The keyframes show a person in the center of the frame with a dark shoulder bag. Across the sequence, they appear to be interacting with merchandise while their body and bag are positioned in a way that suggests concealing an item, consistent with the L1 conceal event (subtype: pocket, zone: hip). The multi-frame behavior indicates hiding intent rather than normal browsing.","latency_ms":2055.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual is observed moving an item toward their hip pocket across sequential frames, consistent with hiding an unpaid item on their person, matching the L1 conceal event subtype of pocket concealment.","latency_ms":2411.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view) and high score (0.6748), indicates the person is hiding an item on their person. The multi-frame behavior shows the individual moving with a bag or item near their hip, consistent with concealment into pocket or under clothing. No payment or return to shelf is observed, supporting unpaid concealment intent.","latency_ms":2614.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their waistband/pocket area, consistent with concealing unpaid merchandise. This behavior aligns with the 'conceal' L1 event and is supported by visual evidence across multiple frames.","latency_ms":1860.6}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_5__conceal__6","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' at hip zone, and the trajectory analysis shows co-disappear (item vanishes from view after interaction) with high score (0.65) and 100% dwell ratio. The person's posture and hand motion toward the hip area across multiple frames suggest hiding an item in a pocket or waistband, consistent with concealment intent. No payment or return to shelf is observed.","latency_ms":2657.9,"agreement_hint":"keep_ok","center_ts":148.76666666666668,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__conceal__6&file=kf_00_147.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__conceal__6&file=kf_01_148.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__conceal__6&file=kf_02_149.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__conceal__6&file=kf_03_149.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the multi-frame sequence shows a person handling merchandise in a manner consistent with hiding it on their body rather than openly carrying it.","latency_ms":1825.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#5) is holding multiple garments and moving toward their hip pocket (per L1 event subtype 'pocket'), with multi-frame behavior showing the action of positioning items to conceal them on their person, consistent with hiding unpaid merchandise.","latency_ms":3190.3},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' at hip zone, and the trajectory analysis shows co-disappear (item vanishes from view after interaction) with high score (0.65) and 100% dwell ratio. The person's posture and hand motion toward the hip area across multiple frames suggest hiding an item in a pocket or waistband, consistent with concealment intent. No payment or return to shelf is observed.","latency_ms":2657.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is seen picking up and examining clothing items, placing them into a shopping basket, and interacting with the merchandise in a manner consistent with normal shopping behavior. There is no visible concealment of unpaid items into bags, pockets, or under clothes.","latency_ms":2064.0}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_71__conceal__14","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 1.0) indicates the person likely concealed an item under their clothes. The person is standing near a clothing rack, and while no explicit visual of the concealment is seen in these frames, the consistent context and high-confidence L1 signal support concealment intent. No payment or visible return to shelf occurs, and the behavior aligns with shoplifting via under-clothes concealment.","latency_ms":2903.3,"agreement_hint":"keep_ok","center_ts":662.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__conceal__14&file=kf_00_661.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__conceal__14&file=kf_01_662.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__conceal__14&file=kf_02_662.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__conceal__14&file=kf_03_663.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The keyframes show a person browsing clothing racks with a shoulder bag, but no clear concealment action (e.g., placing merchandise into the bag or under clothes) is visible across the frames. The L1 conceal hint is not corroborated by visual evidence.","latency_ms":1465.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer is repeatedly reaching into their open bag while browsing clothing racks, with L1 event data indicating a concealment event under clothes, consistent with multi-frame behavior of hiding an unpaid item.","latency_ms":2743.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 1.0) indicates the person likely concealed an item under their clothes. The person is standing near a clothing rack, and while no explicit visual of the concealment is seen in these frames, the consistent context and high-confidence L1 signal support concealment intent. No payment or visible return to shelf occurs, and the behavior aligns with shoplifting via under-clothes concealment.","latency_ms":2903.3},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item under their clothing, which is a clear concealment behavior indicating intent to shoplift. This is supported by the L1 event 'conceal' and the visual evidence of the item being hidden.","latency_ms":1812.0}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_87__7","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer (C#87) is seen repeatedly interacting with clothing items in a manner suggesting concealment: she bends down near the floor, reaches into a lower rack area where items are less visible, and appears to manipulate items while partially obscured by her body and bag. Her posture and actions—especially the repeated bending and reaching into low areas without placing items in a visible cart or basket—align with typical shoplifting behavior of hiding merchandise on the person. The L1 event 'qty_spike' and 'taken_proxy>=2' support this, but the visual evidence of concealment (e.g., hiding items under clothes or in bag) is consistent across frames. No clear checkout or return to shelf is observed.","latency_ms":3232.8,"agreement_hint":"keep_ok","center_ts":810.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__7&file=kf_00_809.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__7&file=kf_01_810.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__7&file=kf_02_810.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__7&file=kf_03_811.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The person is seen browsing and handling clothing on racks without any visible concealment into a bag, pocket, or clothing. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1384.0},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across the sequence of frames, the customer is observed interacting with clothing items near the rack, moving toward her patterned bag, and positioning items in a manner consistent with hiding unpaid merchandise in her bag, which aligns with multi-frame behavior indicating concealment of products.","latency_ms":3572.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#87) is seen repeatedly interacting with clothing items in a manner suggesting concealment: she bends down near the floor, reaches into a lower rack area where items are less visible, and appears to manipulate items while partially obscured by her body and bag. Her posture and actions—especially the repeated bending and reaching into low areas without placing items in a visible cart or basket—align with typical shoplifting behavior of hiding merchandise on the person. The L1 event 'qty_spike' and 'taken_proxy>=2' support this, but the visual evidence of concealment (e.g., hiding items under clothes or in bag) is consistent across frames. No clear checkout or return to shelf is observed.","latency_ms":3232.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen picking up a red garment and placing it into her bag, which indicates an intent to conceal unpaid merchandise. This behavior aligns with the 'conceal_unpaid' label as she actively hides the item from view.","latency_ms":1893.5}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_87__conceal__16","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (1.0) and high model score (0.85), indicates the person likely concealed an item in their pocket or waist area. The person's posture and movement near the clothing racks, along with the absence of the item in visible hands or cart, support concealment intent rather than browsing or checkout. No payment is observed, and the risk score is low but not zero, suggesting the act may be subtle but still identifiable as concealment.","latency_ms":2807.6,"agreement_hint":"keep_ok","center_ts":807.5666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__conceal__16&file=kf_00_806.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__conceal__16&file=kf_01_807.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__conceal__16&file=kf_02_807.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__conceal__16&file=kf_03_808.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The person is seen moving through the store and placing an item into a bag/pocket area at the hip, consistent with concealment behavior across multiple frames.","latency_ms":1467.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Multi-frame visual evidence shows the customer moving an item toward her hip pocket (consistent with the L1 conceal event subtype of pocket), with trajectory and model score supporting hiding an unpaid product on her person rather than normal shopping actions.","latency_ms":3366.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (1.0) and high model score (0.85), indicates the person likely concealed an item in their pocket or waist area. The person's posture and movement near the clothing racks, along with the absence of the item in visible hands or cart, support concealment intent rather than browsing or checkout. No payment is observed, and the risk score is low but not zero, suggesting the act may be subtle but still identifiable as concealment.","latency_ms":2807.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item into her bag, which is consistent with concealment behavior. The L1 event 'conceal' further supports this inference, as it indicates a potential attempt to hide unpaid merchandise.","latency_ms":2311.6}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_87__qty_spike__17","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer (C#87) is seen repeatedly interacting with merchandise in a way that suggests concealment: she bends down near the floor, reaches into a low clothing rack, and appears to retrieve items without placing them in a visible basket or cart. Her body posture and hand movements—particularly reaching under or behind racks while keeping her back partially turned—indicate an intent to hide items on her person (e.g., in her bag or clothing). The L1 event 'qty_spike' with 'taken_proxy>=2' and 'take_burst>=2/25s' supports rapid, repeated handling of items, consistent with shoplifting behavior rather than normal browsing. No payment or checkout is observed, and no items are visibly placed in a cart. This aligns with 'conceal_unpaid' as defined: hiding items on the body via multi-frame behavior.","latency_ms":5520.3,"agreement_hint":"keep_ok","center_ts":810.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__qty_spike__17&file=kf_00_809.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__qty_spike__17&file=kf_01_810.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__qty_spike__17&file=kf_02_810.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__qty_spike__17&file=kf_03_811.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The person is seen browsing and handling clothing on racks without any visible concealment into a bag, pocket, or clothing. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1491.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across the sequence of frames, the customer is observed taking a red garment from the clothing rack and moving it toward her large patterned bag, consistent with hiding an unpaid product in her bag. The L1 qty_spike event aligns with the multi-frame action of taking an item to conceal it, matching the visual evidence of hiding merchandise.","latency_ms":3449.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#87) is seen repeatedly interacting with merchandise in a way that suggests concealment: she bends down near the floor, reaches into a low clothing rack, and appears to retrieve items without placing them in a visible basket or cart. Her body posture and hand movements—particularly reaching under or behind racks while keeping her back partially turned—indicate an intent to hide items on her person (e.g., in her bag or clothing). The L1 event 'qty_spike' with 'taken_proxy>=2' and 'take_burst>=2/25s' supports rapid, repeated handling of items, consistent with shoplifting behavior rather than normal browsing. No payment or checkout is observed, and no items are visibly placed in a cart. This aligns with 'conceal_unpaid' as defined: hiding items on the body via multi-frame behavior.","latency_ms":5520.3},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen picking up a red garment and placing it into their bag, which indicates an intent to conceal unpaid merchandise. This behavior aligns with shoplifting intent across multiple frames.","latency_ms":1757.9}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_8__conceal__2","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view) and high model score (0.85), strongly indicates the person is concealing an item in their pocket or clothing. The multi-frame behavior shows the person holding items while moving toward the hip area, consistent with hiding merchandise without payment. This aligns with the definition of 'conceal_unpaid' — hiding a product on the body — not just browsing.","latency_ms":3059.0,"agreement_hint":"keep_ok","center_ts":25.966666666666665,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__conceal__2&file=kf_00_24.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__conceal__2&file=kf_01_25.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__conceal__2&file=kf_02_26.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__conceal__2&file=kf_03_27.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a conceal action at the hip/pocket with a high model score, and the keyframes show the person in the act of handling merchandise near their body in a manner consistent with concealment. While the visual evidence is not perfectly clear, the combination of the L1 event and the observed behavior supports a concealment determination.","latency_ms":1217.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#8) is observed over multiple frames moving an item toward their hip pocket, consistent with the L1 conceal event subtype of pocket concealment, showing multi-frame behavior of hiding an unpaid item on their person.","latency_ms":3069.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view) and high model score (0.85), strongly indicates the person is concealing an item in their pocket or clothing. The multi-frame behavior shows the person holding items while moving toward the hip area, consistent with hiding merchandise without payment. This aligns with the definition of 'conceal_unpaid' — hiding a product on the body — not just browsing.","latency_ms":3059.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen making a deliberate motion to conceal an item into their pocket, consistent with shoplifting behavior. The L1 event 'conceal' further supports this inference.","latency_ms":2068.8}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting041_x264__C_10__conceal__2","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high trajectory score (0.59) + dwell ratio (0.83) indicates sustained, suspicious behavior near the body. The person (C#10, P#10) is standing at the counter while holding an item up near their head/shoulder area for multiple frames — a posture consistent with hiding an item under clothing or in a bag not visible to camera. No payment occurs, and no clear return to shelf or cart is observed. This matches the definition of 'conceal_unpaid' where concealment into clothing is inferred from multi-frame behavior and context, despite lack of direct visual proof of the item being hidden.","latency_ms":3515.4,"agreement_hint":"keep_ok","center_ts":100.36666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_10__conceal__2&file=kf_00_99.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_10__conceal__2&file=kf_01_100.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_10__conceal__2&file=kf_02_100.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_10__conceal__2&file=kf_03_101.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.4,"agreement_hint":"uncertain","rationale":"The L1 event suggests concealment under clothes, but the keyframes show only people standing and browsing; no clear visual evidence of hiding merchandise on the body is visible across the frames.","latency_ms":1360.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a conceal event under clothes, with model score 0.85 and subtype 'under_clothes'; visual evidence across frames shows the individual in the pink outfit adjusting their upper body/scarf area consistent with hiding an item under clothing, matching the concealment behavior.","latency_ms":2897.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high trajectory score (0.59) + dwell ratio (0.83) indicates sustained, suspicious behavior near the body. The person (C#10, P#10) is standing at the counter while holding an item up near their head/shoulder area for multiple frames — a posture consistent with hiding an item under clothing or in a bag not visible to camera. No payment occurs, and no clear return to shelf or cart is observed. This matches the definition of 'conceal_unpaid' where concealment into clothing is inferred from multi-frame behavior and context, despite lack of direct visual proof of the item being hidden.","latency_ms":3515.4},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and the visual evidence of a person placing an item under their clothing strongly indicate intent to steal by concealing unpaid merchandise.","latency_ms":2046.4}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting041_x264__C_11__0","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The person in maroon (C#11) is seen moving toward the exit while holding an item close to their body, and then appears to duck or turn quickly near the doorway—consistent with concealing merchandise under clothing or into a bag. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, and the multi-frame behavior shows intent to hide rather than return or pay. No visible checkout or return occurs.","latency_ms":2428.7,"agreement_hint":"keep_ok","center_ts":137.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__0&file=kf_00_136.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__0&file=kf_01_137.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__0&file=kf_02_137.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__0&file=kf_03_138.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and moving through the store; no clear concealment into bag, pocket, or clothing is visible across the sequence.","latency_ms":1150.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Multi-frame behavior shows the individual in the pink outfit moving items toward their body, with actions consistent with hiding unpaid merchandise, supported by the L1 qty_spike event indicating an unusual number of items were taken from the shelf area.","latency_ms":3187.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person in maroon (C#11) is seen moving toward the exit while holding an item close to their body, and then appears to duck or turn quickly near the doorway—consistent with concealing merchandise under clothing or into a bag. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, and the multi-frame behavior shows intent to hide rather than return or pay. No visible checkout or return occurs.","latency_ms":2428.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are at a checkout counter, with one person appearing to pay or complete a transaction while the other waits nearby. There is no visible concealment of merchandise into bags, pockets, or clothing, and their behavior aligns with typical checkout activity.","latency_ms":1699.8}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting041_x264__C_11__conceal__3","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (product vanishing from view after interaction) and dwell ratio of 1.0, strongly indicates concealment. The person in the pink dress is at the counter, and the visual flow suggests they placed an item into a pocket or under clothing near the hip area—consistent with multi-frame concealment intent. No payment is observed, and the risk score, though low, aligns with the soft signal. This meets the criteria for 'conceal_unpaid' as defined: hiding on the body without visible checkout.","latency_ms":3176.4,"agreement_hint":"keep_ok","center_ts":124.76666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__conceal__3&file=kf_00_123.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__conceal__3&file=kf_01_124.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__conceal__3&file=kf_02_125.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__conceal__3&file=kf_03_125.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The keyframes show individuals near a counter with bags, but no clear concealment of unpaid merchandise into pockets or clothing is visible. The L1 conceal event is a soft hint, but visual evidence does not confirm shoplifting intent.","latency_ms":1637.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Visual evidence across frames shows a person placing an item into a pocket (consistent with the L1 conceal event subtype of pocket) while moving toward the exit, with multi-frame behavior indicating hiding an unpaid item rather than normal shopping or checkout.","latency_ms":3198.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (product vanishing from view after interaction) and dwell ratio of 1.0, strongly indicates concealment. The person in the pink dress is at the counter, and the visual flow suggests they placed an item into a pocket or under clothing near the hip area—consistent with multi-frame concealment intent. No payment is observed, and the risk score, though low, aligns with the soft signal. This meets the criteria for 'conceal_unpaid' as defined: hiding on the body without visible checkout.","latency_ms":3176.4},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The person is at the checkout counter, interacting with the cashier and placing items into a shopping bag. There is no evidence of concealment or hiding unpaid merchandise. The behavior aligns with normal checkout procedures.","latency_ms":2201.0}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting041_x264__C_11__qty_spike__4","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The person in maroon (C#11) is seen moving toward the exit while holding an item close to their body, and then appears to duck or turn quickly near the doorway—consistent with concealing merchandise under clothing or into a bag. The L1 event 'qty_spike' with multiple takes and handheld peak supports this intent, and no payment or return action is observed. The behavior across frames shows clear concealment intent rather than browsing or checkout.","latency_ms":2752.3,"agreement_hint":"keep_ok","center_ts":137.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__qty_spike__4&file=kf_00_136.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__qty_spike__4&file=kf_01_137.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__qty_spike__4&file=kf_02_137.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__qty_spike__4&file=kf_03_138.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and moving through the store; no clear concealment into bag, pocket, or clothing is visible across the sequence. The L1 qty_spike is a soft hint only and lacks matching visual evidence of hiding merchandise.","latency_ms":1958.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Multi-frame behavior shows the customer in the pink dress moving items toward her body, with actions consistent with hiding unpaid merchandise, supported by the L1 qty_spike event indicating a quantity change that aligns with concealment intent across the sequence of frames.","latency_ms":3784.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person in maroon (C#11) is seen moving toward the exit while holding an item close to their body, and then appears to duck or turn quickly near the doorway—consistent with concealing merchandise under clothing or into a bag. The L1 event 'qty_spike' with multiple takes and handheld peak supports this intent, and no payment or return action is observed. The behavior across frames shows clear concealment intent rather than browsing or checkout.","latency_ms":2752.3},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are at a checkout counter, with one person appearing to be in the process of paying or handing over items. There is no visible concealment of merchandise into bags, pockets, or under clothing. The behavior aligns with normal checkout activity.","latency_ms":1687.7}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting041_x264__C_13__2","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer (C#13) is seen interacting with the counter while another person stands nearby. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, but more importantly, the customer’s posture—bending slightly, hands near the waist/counter area, and the presence of a white bag on the counter—combined with the context of the store layout and lack of visible payment, strongly indicates concealment of unpaid merchandise. No clear checkout or return action is observed; instead, the behavior aligns with shoplifting intent where items are hidden on the body or in bags without payment. The multi-frame sequence shows no item being placed into a cart or basket, nor any visible payment action.","latency_ms":3265.8,"agreement_hint":"keep_ok","center_ts":391.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__2&file=kf_00_390.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__2&file=kf_01_390.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__2&file=kf_02_391.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__2&file=kf_03_392.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show two individuals standing at a counter with visible merchandise; no concealment into bags, pockets, or clothing is evident. The L1 qty_spike is a soft hint only and lacks visual confirmation of hiding behavior.","latency_ms":1712.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is holding and examining a product in a normal shopping manner, with no visible concealment into bags, pockets, or under clothing across the sequence of frames. The L1 qty_spike event is a soft hint without matching visual evidence of concealment.","latency_ms":2733.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#13) is seen interacting with the counter while another person stands nearby. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, but more importantly, the customer’s posture—bending slightly, hands near the waist/counter area, and the presence of a white bag on the counter—combined with the context of the store layout and lack of visible payment, strongly indicates concealment of unpaid merchandise. No clear checkout or return action is observed; instead, the behavior aligns with shoplifting intent where items are hidden on the body or in bags without payment. The multi-frame sequence shows no item being placed into a cart or basket, nor any visible payment action.","latency_ms":3265.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is at the checkout counter, interacting with the cashier and handling products in a manner consistent with paying for items. There is no visible concealment of merchandise into bags, pockets, or under clothing.","latency_ms":1766.5}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting041_x264__C_13__conceal__6","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after approach) and high model score (0.85), strongly suggests the person concealed an item in their pocket or clothing. The multi-frame behavior shows the person standing near the counter, then turning away while holding something near their hip area—consistent with hiding merchandise. No payment is observed, and no clear return to shelf or cart placement occurs. This meets the criteria for 'conceal_unpaid' as defined: hiding product on body without visible payment intent.","latency_ms":3111.4,"agreement_hint":"keep_ok","center_ts":360.76666666666665,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__conceal__6&file=kf_00_359.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__conceal__6&file=kf_01_360.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__conceal__6&file=kf_02_361.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__conceal__6&file=kf_03_361.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a conceal action at the hip/pocket with a model score of 0.85, and the keyframes show a person in a maroon outfit standing near a counter with items, consistent with hiding merchandise on the body.","latency_ms":3158.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The woman in the maroon sari is seen moving an item toward her hip pocket across sequential frames, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior showing intent to hide the unpaid item on her person.","latency_ms":2422.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after approach) and high model score (0.85), strongly suggests the person concealed an item in their pocket or clothing. The multi-frame behavior shows the person standing near the counter, then turning away while holding something near their hip area—consistent with hiding merchandise. No payment is observed, and no clear return to shelf or cart placement occurs. This meets the criteria for 'conceal_unpaid' as defined: hiding product on body without visible payment intent.","latency_ms":3111.4},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is standing at a checkout counter with items placed on the counter, indicating they are in the process of paying for their purchases. There is no evidence of concealment or hiding of merchandise.","latency_ms":1692.1}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting041_x264__C_13__qty_spike__7","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer (C#13) is seen interacting with the counter while another person stands nearby. The L1 event 'qty_spike' and high 'handheld_peak' suggest multiple items were handled quickly. In the sequence, the customer’s hands are near the counter surface, and there is a white bag or item being held close to the body—consistent with concealing merchandise under clothing or into a bag. No payment is visible, and the behavior aligns with shoplifting intent: rapid handling of multiple items without placing them in a cart or basket, followed by potential concealment. The presence of multiple items on the counter and the customer’s posture indicate an attempt to hide goods rather than normal browsing.","latency_ms":3449.3,"agreement_hint":"keep_ok","center_ts":391.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__qty_spike__7&file=kf_00_390.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__qty_spike__7&file=kf_01_390.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__qty_spike__7&file=kf_02_391.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__qty_spike__7&file=kf_03_392.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show two individuals standing at a counter with visible merchandise; no concealment into bags, pockets, or clothing is evident. The L1 qty_spike is a soft proxy and lacks visual confirmation of hiding behavior.","latency_ms":1395.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is holding and examining a product over the counter, consistent with normal shopping behavior of inspecting merchandise, with no visual evidence of concealing unpaid items into a bag, pocket, or under clothes.","latency_ms":2677.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#13) is seen interacting with the counter while another person stands nearby. The L1 event 'qty_spike' and high 'handheld_peak' suggest multiple items were handled quickly. In the sequence, the customer’s hands are near the counter surface, and there is a white bag or item being held close to the body—consistent with concealing merchandise under clothing or into a bag. No payment is visible, and the behavior aligns with shoplifting intent: rapid handling of multiple items without placing them in a cart or basket, followed by potential concealment. The presence of multiple items on the counter and the customer’s posture indicate an attempt to hide goods rather than normal browsing.","latency_ms":3449.3},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is at the checkout counter, interacting with the cashier and handling products in a manner consistent with paying for items. There is no evidence of concealment or hiding unpaid merchandise.","latency_ms":2899.1}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting041_x264__C_3__conceal__1","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (product vanishes from view after interaction) and high model score (0.85), strongly indicates the person concealed an item in their pocket or clothing. The multi-frame behavior shows the individual interacting with shelves, then moving away with no visible payment, supporting concealment intent. No clear checkout or return to shelf is observed.","latency_ms":2451.1,"agreement_hint":"keep_ok","center_ts":24.766666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_3__conceal__1&file=kf_00_23.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_3__conceal__1&file=kf_01_24.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_3__conceal__1&file=kf_02_25.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_3__conceal__1&file=kf_03_25.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show a person in a pink outfit with a white bag near the hip area, consistent with hiding merchandise. While the visual evidence is not perfectly clear, the multi-frame behavior and L1 hint support concealment.","latency_ms":1554.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#3) is observed moving an item toward their hip pocket across sequential frames, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior indicating hiding an unpaid product rather than normal shopping actions.","latency_ms":2842.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (product vanishes from view after interaction) and high model score (0.85), strongly indicates the person concealed an item in their pocket or clothing. The multi-frame behavior shows the individual interacting with shelves, then moving away with no visible payment, supporting concealment intent. No clear checkout or return to shelf is observed.","latency_ms":2451.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen reaching up to a high shelf and appears to be placing an item into her pocket or bag, consistent with concealment behavior. This action aligns with the L1 event 'conceal' and suggests intent to shoplift.","latency_ms":2691.1}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting041_x264__C_7__1","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer (C#7) is seen holding a white bag and then appears to place an item into it while standing near the counter. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, and the behavior of placing something into the bag without proceeding to checkout indicates concealment intent. The person’s posture and movement toward the bag, combined with the context of being near the counter but not paying, support shoplifting intent. No clear payment or return action is observed.","latency_ms":2280.3,"agreement_hint":"keep_ok","center_ts":173.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__1&file=kf_00_172.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__1&file=kf_01_173.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__1&file=kf_02_173.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__1&file=kf_03_174.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a person holding a white bag and standing near a counter with items, but there is no clear visual evidence of concealing unpaid merchandise into a bag, pocket, or clothing. The behavior appears consistent with normal shopping or carrying a personal bag.","latency_ms":1434.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the maroon top is seen moving items toward a white bag across consecutive frames, with actions consistent with hiding unpaid merchandise in the bag, matching the definition of concealment of unpaid items.","latency_ms":2300.3},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#7) is seen holding a white bag and then appears to place an item into it while standing near the counter. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, and the behavior of placing something into the bag without proceeding to checkout indicates concealment intent. The person’s posture and movement toward the bag, combined with the context of being near the counter but not paying, support shoplifting intent. No clear payment or return action is observed.","latency_ms":2280.3},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the maroon shirt is seen placing an item into their bag, which is a clear act of concealment. This behavior aligns with shoplifting intent as the item is not visibly placed into a shopping cart or basket for checkout.","latency_ms":2273.1}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting041_x264__C_7__conceal__0","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with the person's posture (bending slightly toward the counter while holding a child), suggests an attempt to hide an item in their clothing or pocket. The multi-frame context shows no clear payment action, and the person is not visibly placing items into a cart or basket. The high model score (0.85) and legacy streak (5) support this interpretation despite low trajectory evidence.","latency_ms":2778.1,"agreement_hint":"keep_ok","center_ts":15.566666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__conceal__0&file=kf_00_14.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__conceal__0&file=kf_01_15.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__conceal__0&file=kf_02_15.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__conceal__0&file=kf_03_16.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.4,"agreement_hint":"uncertain","rationale":"The L1 event suggests a concealment into a pocket at the hip, but the provided keyframes show only general store activity with people browsing and holding items. No clear visual evidence of hiding merchandise in clothing or a bag is visible across the frames.","latency_ms":1578.8},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the blue top is observed over consecutive frames moving an item toward their hip pocket (consistent with the L1 conceal event subtype of pocket), showing multi-frame behavior of hiding an unpaid product on their person.","latency_ms":2859.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with the person's posture (bending slightly toward the counter while holding a child), suggests an attempt to hide an item in their clothing or pocket. The multi-frame context shows no clear payment action, and the person is not visibly placing items into a cart or basket. The high model score (0.85) and legacy streak (5) support this interpretation despite low trajectory evidence.","latency_ms":2778.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is at a checkout counter, interacting with the cashier and appears to be in the process of paying for items. There is no visible concealment or intent to hide merchandise.","latency_ms":1801.8}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting041_x264__C_7__qty_spike__5","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer (C#7) is seen holding a white bag and repeatedly reaching toward the counter area while another person stands nearby. The L1 event 'qty_spike' with 'taken_proxy>=2' suggests multiple items were taken, and the behavior of lingering near the counter without placing items in a cart or proceeding to checkout indicates intent to conceal unpaid merchandise. The white bag appears to be used for hiding items, consistent with concealment behavior across frames.","latency_ms":3008.0,"agreement_hint":"keep_ok","center_ts":173.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__qty_spike__5&file=kf_00_172.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__qty_spike__5&file=kf_01_173.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__qty_spike__5&file=kf_02_173.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__qty_spike__5&file=kf_03_174.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a person holding a white bag and interacting with merchandise at a counter, but there is no clear visual evidence of concealing unpaid items into pockets, clothing, or a personal bag. The behavior appears consistent with normal shopping or browsing.","latency_ms":1362.8},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the individual in the maroon top is seen moving items toward their white bag, with actions consistent with hiding unpaid merchandise into the bag rather than normal shopping activity. The L1 qty_spike event aligns with this observed behavior of transferring items to a bag without visible checkout activity.","latency_ms":3093.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#7) is seen holding a white bag and repeatedly reaching toward the counter area while another person stands nearby. The L1 event 'qty_spike' with 'taken_proxy>=2' suggests multiple items were taken, and the behavior of lingering near the counter without placing items in a cart or proceeding to checkout indicates intent to conceal unpaid merchandise. The white bag appears to be used for hiding items, consistent with concealment behavior across frames.","latency_ms":3008.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the maroon top is seen placing an item into their bag, which is a clear act of concealment. This behavior aligns with shoplifting intent as they attempt to hide unpaid merchandise.","latency_ms":1617.9}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"zenodo_theft__main220_Trim5__C_1__conceal__0","clip_id":"zenodo_theft__main220_Trim5","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' and zone 'hip', supported by trajectory evidence showing co-disappearance (item vanishes from view after interaction) and high model score (0.85). Visually, the person picks up an item (frame 1), then in subsequent frames (2–4) walks away while holding the basket but also appears to have the item tucked into their pocket or waist area—consistent with concealment behavior. No visible placement into cart/basket or return to shelf occurs; no checkout is seen. This meets the criteria for 'conceal_unpaid' as defined: hiding product on body with multi-frame intent, not just a single grab.","latency_ms":3486.8,"agreement_hint":"keep_ok","center_ts":1.5666666666666667,"corpus":"zenodo","media_url":null,"playable":false,"keyframe_urls":["/api/path1_case_keyframe?case_id=zenodo_theft__main220_Trim5__C_1__conceal__0&file=kf_00_0.43s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main220_Trim5__C_1__conceal__0&file=kf_01_1.20s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main220_Trim5__C_1__conceal__0&file=kf_02_1.93s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main220_Trim5__C_1__conceal__0&file=kf_03_2.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person is seen holding a shopping basket while reaching toward the shelf, and the L1 event indicates a concealment action into a pocket at the hip. The multi-frame sequence shows the person moving through the aisle with the basket, consistent with hiding merchandise rather than normal browsing or checkout.","latency_ms":1373.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer is seen moving an item from the shelf toward his hip pocket (as indicated by L1 conceal event subtype pocket) across sequential frames, hiding the item from view rather than placing it into the shopping basket, consistent with concealing unpaid merchandise.","latency_ms":2790.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' and zone 'hip', supported by trajectory evidence showing co-disappearance (item vanishes from view after interaction) and high model score (0.85). Visually, the person picks up an item (frame 1), then in subsequent frames (2–4) walks away while holding the basket but also appears to have the item tucked into their pocket or waist area—consistent with concealment behavior. No visible placement into cart/basket or return to shelf occurs; no checkout is seen. This meets the criteria for 'conceal_unpaid' as defined: hiding product on body with multi-frame intent, not just a single grab.","latency_ms":3486.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is holding a shopping basket and examining products on the shelves, consistent with normal shopping behavior. There is no visible concealment of merchandise into a bag, pocket, or under clothing across the frames.","latency_ms":2492.2}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"zenodo_theft__main303_Trim1__C_1__0","clip_id":"zenodo_theft__main303_Trim1","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer is holding a black bag and repeatedly brings his hand to the front of his torso (e.g., frame 1 and 2), consistent with placing an item inside the bag or under his shirt. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, but more importantly, the multi-frame behavior—specifically the repeated hand-to-bag/torso motion while walking through the aisle—indicates concealment intent rather than normal shopping. No items are seen placed in a cart or basket; instead, the bag is carried openly but used for hiding. This matches the definition of 'conceal_unpaid': putting a product into a bag/pocket/under clothes, inferred from overall multi-frame behavior.","latency_ms":3735.6,"agreement_hint":"keep_ok","center_ts":3.566666666666667,"corpus":"zenodo","media_url":null,"playable":false,"keyframe_urls":["/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__0&file=kf_00_2.43s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__0&file=kf_01_3.20s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__0&file=kf_02_3.93s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__0&file=kf_03_3.93s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.6,"agreement_hint":"uncertain","rationale":"The frames show a man walking down an aisle holding a black bag, but there is no clear visual evidence of him placing unpaid merchandise into the bag or concealing items on his person. The L1 qty_spike event is a soft hint and not sufficient without matching visual concealment evidence.","latency_ms":918.1},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the individual is seen adjusting a large black bag against their torso, then lifting it to their shoulder in a manner consistent with concealing unpaid merchandise within the bag, with no visible payment activity to indicate normal checkout. The L1 qty_spike event aligns with the behavior of taking items to conceal, matching multi-frame hiding intent.","latency_ms":3483.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is holding a black bag and repeatedly brings his hand to the front of his torso (e.g., frame 1 and 2), consistent with placing an item inside the bag or under his shirt. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, but more importantly, the multi-frame behavior—specifically the repeated hand-to-bag/torso motion while walking through the aisle—indicates concealment intent rather than normal shopping. No items are seen placed in a cart or basket; instead, the bag is carried openly but used for hiding. This matches the definition of 'conceal_unpaid': putting a product into a bag/pocket/under clothes, inferred from overall multi-frame behavior.","latency_ms":3735.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their backpack while walking through the aisle, which indicates an intent to conceal unpaid merchandise. This behavior aligns with shoplifting intent.","latency_ms":2044.7}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"zenodo_theft__main303_Trim1__C_1__conceal__0","clip_id":"zenodo_theft__main303_Trim1","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) is supported by visual evidence: the person repeatedly reaches toward the right side of their body while holding a large black bag, then later walks forward with the bag held close to their torso—consistent with hiding an item under clothing or in the bag. The trajectory analysis shows co-disappear (1.0) and dwell ratio 1.0, indicating sustained focus on concealment behavior. No visible payment or return actions occur; no items are placed in cart or basket. This aligns with 'conceal_unpaid' per rules: multi-frame intent to hide unpaid merchandise, not just browsing.","latency_ms":3224.0,"agreement_hint":"keep_ok","center_ts":1.5666666666666667,"corpus":"zenodo","media_url":null,"playable":false,"keyframe_urls":["/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__conceal__0&file=kf_00_0.43s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__conceal__0&file=kf_01_1.20s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__conceal__0&file=kf_02_1.93s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__conceal__0&file=kf_03_2.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The sequence of frames shows the person holding a black backpack open in front of their torso while manipulating an item near the bag's opening, consistent with concealing merchandise. The L1 event subtype 'under_clothes' and model score support this, and the multi-frame behavior indicates hiding intent rather than normal browsing.","latency_ms":1689.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the individual adjusts a large black bag while in the snack aisle, with L1 event data indicating concealment under clothes (consistent with hiding unpaid merchandise). The multi-frame behavior shows intentional manipulation of the bag to hide items, matching the conceal_unpaid label criteria.","latency_ms":3569.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) is supported by visual evidence: the person repeatedly reaches toward the right side of their body while holding a large black bag, then later walks forward with the bag held close to their torso—consistent with hiding an item under clothing or in the bag. The trajectory analysis shows co-disappear (1.0) and dwell ratio 1.0, indicating sustained focus on concealment behavior. No visible payment or return actions occur; no items are placed in cart or basket. This aligns with 'conceal_unpaid' per rules: multi-frame intent to hide unpaid merchandise, not just browsing.","latency_ms":3224.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen walking through the aisle while adjusting a backpack, which aligns with the L1 event 'conceal' indicating potential concealment of unpaid merchandise. The behavior suggests an intent to hide items on their person.","latency_ms":2615.3}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"zenodo_theft__main303_Trim1__C_1__qty_spike__1","clip_id":"zenodo_theft__main303_Trim1","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer is walking down the aisle with a black bag slung over his shoulder, and in the first frame, he is seen adjusting or pressing his hand against the front of the bag near his chest—consistent with placing or securing an item inside. His posture and hand motion suggest concealment rather than casual carrying. The L1 event 'qty_spike' (with taken_proxy=2) supports multiple items being taken, and combined with the visual of him holding the bag close to his body while walking away from shelves, this indicates intent to hide unpaid merchandise. No items are seen being placed in a cart or returned to shelves; instead, the bag’s position and his actions align with concealment.","latency_ms":3344.7,"agreement_hint":"keep_ok","center_ts":3.566666666666667,"corpus":"zenodo","media_url":null,"playable":false,"keyframe_urls":["/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__qty_spike__1&file=kf_00_2.43s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__qty_spike__1&file=kf_01_3.20s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__qty_spike__1&file=kf_02_3.93s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__qty_spike__1&file=kf_03_3.93s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.6,"agreement_hint":"uncertain","rationale":"The frames show a man walking down an aisle holding a black bag, but there is no visible merchandise being concealed into the bag, pockets, or clothing. The L1 qty_spike event is a soft hint only and lacks matching visual evidence of concealment.","latency_ms":1410.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual is seen placing a black bag under their shirt (concealing it against their torso) and then securing it over their shoulder, consistent with hiding an unpaid item on their person across sequential frames. The L1 qty_spike event supports the inference of taking items to conceal, matching the visual behavior of hiding a bag under clothing.","latency_ms":2930.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is walking down the aisle with a black bag slung over his shoulder, and in the first frame, he is seen adjusting or pressing his hand against the front of the bag near his chest—consistent with placing or securing an item inside. His posture and hand motion suggest concealment rather than casual carrying. The L1 event 'qty_spike' (with taken_proxy=2) supports multiple items being taken, and combined with the visual of him holding the bag close to his body while walking away from shelves, this indicates intent to hide unpaid merchandise. No items are seen being placed in a cart or returned to shelves; instead, the bag’s position and his actions align with concealment.","latency_ms":3344.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their backpack while walking through the aisle, which indicates an intent to conceal unpaid merchandise. This behavior aligns with the 'conceal_unpaid' label as it shows a clear action of hiding an item on their person.","latency_ms":8476.4}]}],"n_fp":9,"n_miss":14,"n_keep":53},"qwen_plus":{"fp_kept":[{"kind":"fp_kept","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"hf_normal__Normal__18___C_1__conceal__1","clip_id":"hf_normal__Normal (18)","weak_label":"negative","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is shown with his hand inside his pocket, which aligns with the L1 event 'conceal' indicating potential concealment of an item. The posture and positioning suggest an intent to hide merchandise on his person.","latency_ms":2635.7,"agreement_hint":"fp_kept","center_ts":9.566666666666666,"corpus":"hf_tcc","media_url":"/api/media/dataset/hf_tcc_shoplifting__Shoplifting%20-%20MNNIT__Normal__Normal%20%2818%29.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=hf_normal__Normal__18___C_1__conceal__1&file=kf_00_8.43s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__18___C_1__conceal__1&file=kf_01_9.20s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__18___C_1__conceal__1&file=kf_02_9.93s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__18___C_1__conceal__1&file=kf_03_10.63s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.6,"agreement_hint":"fp_suppressed","rationale":"The keyframes show the person standing near a table with boxes and items, but no clear concealment into a bag, pocket, or clothing is visible. The L1 conceal event is a soft hint and lacks matching visual evidence in the provided frames.","latency_ms":1679.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"Across sequential frames, the individual is observed moving an item from the table into their hip pocket, which matches the L1 conceal event subtype of pocket hiding, consistent with concealing an unpaid product.","latency_ms":4032.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with the trajectory evidence showing co-disappearance (1.0) and high dwell ratio (0.8333), indicates the person likely concealed an item in their pocket. The person’s hand is consistently near the hip area across frames, and no visible payment or return action occurs — consistent with concealment rather than browsing or checkout. Although the risk_score is 0.0, the visual behavior and meta data strongly support conceal_unpaid.","latency_ms":2676.2},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"fp_kept","rationale":"The individual is shown with his hand inside his pocket, which aligns with the L1 event 'conceal' indicating potential concealment of an item. The posture and positioning suggest an intent to hide merchandise on his person.","latency_ms":2635.7}]},{"kind":"fp_kept","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"hf_normal__Normal__22___C_1__conceal__1","clip_id":"hf_normal__Normal (22)","weak_label":"negative","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen placing an item into his pocket, which constitutes concealment of unpaid merchandise. This action aligns with the 'conceal_unpaid' label as it shows intent to hide the item on his person.","latency_ms":2075.4,"agreement_hint":"fp_kept","center_ts":9.966666666666667,"corpus":"hf_tcc","media_url":"/api/media/dataset/hf_tcc_shoplifting__Shoplifting%20-%20MNNIT__Normal__Normal%20%2822%29.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=hf_normal__Normal__22___C_1__conceal__1&file=kf_00_8.83s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__22___C_1__conceal__1&file=kf_01_9.60s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__22___C_1__conceal__1&file=kf_02_10.33s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__22___C_1__conceal__1&file=kf_03_11.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.6,"agreement_hint":"fp_suppressed","rationale":"The frames show a person standing at a table with boxes and items, handling objects near the table surface. There is no visible concealment into a bag, pocket, or under clothes across the frames. The L1 conceal hint is not supported by clear visual evidence, so the behavior cannot be confirmed as shoplifting or concealment.","latency_ms":1757.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The person is observed moving an item toward their pants pocket (under clothes) across sequential frames, matching the L1 conceal event subtype of under_clothes, indicating hiding an unpaid item on their body.","latency_ms":3104.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with the trajectory evidence (co_disappear = 1.0, dwell_ratio = 0.833) indicates the person is hiding an item under their clothes. The person’s posture—bending over a table, reaching toward the wall/box area, and then pulling back while appearing to adjust clothing or pocket—supports concealment behavior. No payment or visible checkout action occurs; no items are placed in a cart or returned to shelves. This matches 'conceal_unpaid' as defined: hiding merchandise on the body across multiple frames, not just a single grab.","latency_ms":3566.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"fp_kept","rationale":"The individual is seen placing an item into his pocket, which constitutes concealment of unpaid merchandise. This action aligns with the 'conceal_unpaid' label as it shows intent to hide the item on his person.","latency_ms":2075.4}]}],"miss_pos":[{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting012_x264__C_16__conceal__5","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"rationale":"The individual is engaged in a transaction at the checkout counter, handling items on the table and interacting with the cashier. There is no evidence of concealment or hiding of merchandise.","latency_ms":1807.7,"agreement_hint":"miss_pos","center_ts":441.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_16__conceal__5&file=kf_00_440.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_16__conceal__5&file=kf_01_440.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_16__conceal__5&file=kf_02_441.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_16__conceal__5&file=kf_03_442.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.4,"agreement_hint":"uncertain","rationale":"The keyframes show a person seated at a counter handling fabric and interacting with another person, but no clear concealment into a bag, pocket, or under clothes is visible across the frames. The L1 conceal hint is not corroborated by obvious visual evidence in these images.","latency_ms":1179.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a conceal event under clothes, with model score 0.85, and multi-frame behavior aligns with hiding merchandise on the person's body, matching the conceal_unpaid label criteria.","latency_ms":2964.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 0.833) indicates the person likely concealed an item under their clothes. The person is seated at a table with fabrics, and their posture and arm movement suggest hiding something—consistent with concealment intent. No payment or visible return to shelf occurs; no clear checkout action. This matches 'conceal_unpaid' per rules: multi-frame hiding behavior, not just browsing.","latency_ms":3244.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is engaged in a transaction at the checkout counter, handling items on the table and interacting with the cashier. There is no evidence of concealment or hiding of merchandise.","latency_ms":1807.7}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting012_x264__C_21__conceal__6","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The person is examining a large piece of fabric on a table, which is consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or under clothing, and the actions across the frames suggest she is inspecting the item rather than attempting to steal it.","latency_ms":2522.6,"agreement_hint":"miss_pos","center_ts":489.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_21__conceal__6&file=kf_00_488.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_21__conceal__6&file=kf_01_488.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_21__conceal__6&file=kf_02_489.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_21__conceal__6&file=kf_03_490.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the yellow and black top is seen handling merchandise at the table and then moving her hands toward her hip/pocket area, consistent with the L1 conceal event (subtype pocket, zone hip). The multi-frame sequence shows her interacting with items and then concealing them on her body rather than carrying them visibly or placing them in a cart.","latency_ms":1443.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment event in the hip pocket zone, with supporting trajectory evidence, and multi-frame behavior aligns with hiding an unpaid item on the person’s body, matching the conceal_unpaid label criteria.","latency_ms":3062.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappearance (item vanishes from view after interaction) and high model score (0.85), strongly suggests the person is concealing an item in their pocket or clothing. The multi-frame behavior shows the individual standing near a large fabric display, interacting closely with it, and maintaining a posture consistent with hiding something at the hip. No payment or visible placement into a cart occurs; no clear return to shelf. This aligns with 'conceal_unpaid' per rules: concealment into pocket/clothes inferred across frames, not just a single grab.","latency_ms":3355.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is examining a large piece of fabric on a table, which is consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or under clothing, and the actions across the frames suggest she is inspecting the item rather than attempting to steal it.","latency_ms":2522.6}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting012_x264__C_3__conceal__1","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"rationale":"The individual is standing at a checkout counter with a large item spread out on the counter, appearing to be in the process of paying or completing a transaction. There is no evidence of concealment or hiding of merchandise.","latency_ms":2250.0,"agreement_hint":"miss_pos","center_ts":174.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_3__conceal__1&file=kf_00_173.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_3__conceal__1&file=kf_01_174.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_3__conceal__1&file=kf_02_174.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_3__conceal__1&file=kf_03_175.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the yellow top is seen handling merchandise at the display table and then making movements consistent with tucking or hiding an item under their clothing, matching the L1 conceal event subtype 'under_clothes'.","latency_ms":1282.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer is observed manipulating a large golden fabric item, tucking it under their clothing (consistent with the L1 event subtype 'under_clothes') across consecutive frames, showing clear intent to conceal an unpaid product rather than normal shopping activity.","latency_ms":3036.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 1.0) indicates the person likely concealed an item under their clothes. The person is standing near the counter with a large fabric item being handled by another person, but the keyframe sequence shows no visible payment or return to shelf; instead, the concealment pattern aligns with shoplifting intent. No clear visual of the item being hidden in this specific frame set, but the L1 context strongly supports concealment intent across frames.","latency_ms":3073.4},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is standing at a checkout counter with a large item spread out on the counter, appearing to be in the process of paying or completing a transaction. There is no evidence of concealment or hiding of merchandise.","latency_ms":2250.0}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting012_x264__C_5__conceal__0","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"rationale":"The individual is seated at a table in what appears to be a restaurant or dining area, interacting with another person who seems to be an employee or server. There is no evidence of concealment, hiding, or shoplifting intent. The behavior is consistent with normal dining and checkout activities.","latency_ms":2111.1,"agreement_hint":"miss_pos","center_ts":101.96666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_5__conceal__0&file=kf_00_100.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_5__conceal__0&file=kf_01_101.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_5__conceal__0&file=kf_02_102.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_5__conceal__0&file=kf_03_103.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the yellow top is seen seated and repeatedly interacting with an item near their lap/waist area, with the L1 event indicating concealment under clothes. Across the frames, the item is no longer visible on the table or in hand, suggesting it was hidden on the body.","latency_ms":1400.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the person in the white shirt moves a yellow product from the counter and conceals it under their clothing (pants/waist area), matching the L1 conceal event subtype of under_clothes, with multi-frame behavior showing the product being hidden rather than normal shopping or checkout.","latency_ms":3269.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'under_clothes', and the visual sequence shows the customer (C#5, P#5) sitting at the counter while the staff member is distracted; the customer's hand is near their waist/hip area where a yellow item (likely the concealed product) is later seen in the staff member's hand. The trajectory evidence indicates 'below_threshold' and 'co_disappear', consistent with hiding an item under clothes. No payment occurs, and the item is not placed in a visible cart or basket. This meets the criteria for 'conceal_unpaid' as it involves hiding merchandise on the body without intent to pay.","latency_ms":4061.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is seated at a table in what appears to be a restaurant or dining area, interacting with another person who seems to be an employee or server. There is no evidence of concealment, hiding, or shoplifting intent. The behavior is consistent with normal dining and checkout activities.","latency_ms":2111.1}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting012_x264__C_6__conceal__2","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"rationale":"The individual is standing at a checkout counter with merchandise laid out on the table, appearing to be in the process of paying or completing a transaction. There is no visible concealment of items into bags, pockets, or under clothing, and the behavior aligns with normal checkout procedures.","latency_ms":2099.4,"agreement_hint":"miss_pos","center_ts":199.16666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_6__conceal__2&file=kf_00_198.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_6__conceal__2&file=kf_01_198.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_6__conceal__2&file=kf_02_199.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_6__conceal__2&file=kf_03_200.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the yellow top is seen handling merchandise at the display table and then moving their hands toward their hip/pocket area in a manner consistent with concealing an item, matching the L1 conceal event with pocket/hip subtype.","latency_ms":1571.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer (C#6) is observed over multiple frames moving an item toward their hip pocket, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior showing the item being hidden in their clothing pocket.","latency_ms":3468.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after interaction) and high model score (0.85), strongly indicates the customer is concealing an item in their pocket or clothing. The person's posture and hand movements near the hip area across frames support this, especially since they are not placing the item in a visible cart or basket. No payment is observed, and the context suggests intent to steal rather than browse.","latency_ms":3213.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is standing at a checkout counter with merchandise laid out on the table, appearing to be in the process of paying or completing a transaction. There is no visible concealment of items into bags, pockets, or under clothing, and the behavior aligns with normal checkout procedures.","latency_ms":2099.4}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting012_x264__C_9__conceal__3","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.95,"rationale":"The individual is seated at a counter, interacting with a salesperson who appears to be processing a transaction. There are no visible signs of concealment or hiding of merchandise, and the behavior aligns with a normal checkout process.","latency_ms":2280.8,"agreement_hint":"miss_pos","center_ts":232.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_9__conceal__3&file=kf_00_231.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_9__conceal__3&file=kf_01_232.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_9__conceal__3&file=kf_02_232.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_9__conceal__3&file=kf_03_233.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The keyframes show a person in a yellow top seated at a counter with another person standing nearby, appearing to handle items on the counter. No clear concealment into a bag, pocket, or clothing is visible across the frames, and the L1 conceal event is not corroborated by obvious visual evidence.","latency_ms":1216.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 conceal event with subtype 'pocket' (hip zone) aligns with multi-frame visual context of the individual's actions, showing behavior consistent with hiding an unpaid item on their person, matching the conceal_unpaid label criteria.","latency_ms":2285.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after interaction) and high model score (0.85), strongly indicates the person is concealing an item in their pocket or clothing. The multi-frame behavior shows them leaning over the table, interacting with items, then a clear disappearance of the item from visible space—consistent with concealment rather than browsing or checkout. No payment or return to shelf is observed.","latency_ms":2880.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The individual is seated at a counter, interacting with a salesperson who appears to be processing a transaction. There are no visible signs of concealment or hiding of merchandise, and the behavior aligns with a normal checkout process.","latency_ms":2280.8}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting030_x264__C_1__0","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The person is seen holding an item in their hand and appears to be examining or considering it, consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or clothing, and the actions do not indicate shoplifting intent.","latency_ms":2089.1,"agreement_hint":"miss_pos","center_ts":158.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__0&file=kf_00_157.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__0&file=kf_01_158.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__0&file=kf_02_158.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__0&file=kf_03_159.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show individuals standing and interacting near a display counter, with no visible concealment of merchandise into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding intent across frames.","latency_ms":1161.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the green plaid shirt adjusts their bag in a sequence of frames, with the bag appearing to shift position toward their torso in a way consistent with hiding an unpaid item, paired with the L1 qty_spike event indicating a potential product take.","latency_ms":3069.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (in the plaid shirt, center-right) is seen bending down and placing an item into a bag or pocket area near their waist/hip while others are distracted. The L1 event 'qty_spike' and 'handheld_peak>=2' suggest multiple items were handled quickly, and the body posture (bending, hiding motion) combined with the context of a retail store strongly indicates concealment of unpaid merchandise. This matches the definition of 'conceal_unpaid' — hiding on the body — not just browsing.","latency_ms":2728.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen holding an item in their hand and appears to be examining or considering it, consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or clothing, and the actions do not indicate shoplifting intent.","latency_ms":2089.1}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting030_x264__C_1__qty_spike__3","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The person is seen holding and examining a product in their hand, consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or under clothing, and the actions appear to be part of a typical browsing process.","latency_ms":3339.3,"agreement_hint":"miss_pos","center_ts":158.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__qty_spike__3&file=kf_00_157.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__qty_spike__3&file=kf_01_158.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__qty_spike__3&file=kf_02_158.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__qty_spike__3&file=kf_03_159.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show multiple people in a retail environment, with some individuals holding or examining items near a display counter. There is no clear visual evidence of a person concealing unpaid merchandise into a bag, pocket, or clothing across the frames. The L1 event is a soft qty_spike hint, but the visuals do not confirm concealment or shoplifting intent.","latency_ms":2239.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the green plaid shirt adjusts their bag in a sequence of frames, with the bag positioned to conceal items, consistent with hiding unpaid merchandise. The L1 qty_spike event provides additional soft context supporting potential concealment, and the multi-frame behavior shows intent to hide items rather than normal browsing.","latency_ms":2861.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (in blue shirt) is seen bending down and reaching toward the floor near their feet while holding a large brown bag. In the context of the L1 event 'qty_spike' and 'handheld_peak>=2', combined with the posture suggesting an attempt to hide or retrieve an item, this behavior strongly indicates concealment of unpaid merchandise. The person’s hand movement near the bag and lower body suggests placing or retrieving an item into the bag without paying. No clear checkout or return action is observed.","latency_ms":2898.2},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen holding and examining a product in their hand, consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or under clothing, and the actions appear to be part of a typical browsing process.","latency_ms":3339.3}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting039_x264__C_2__0","clip_id":"ucf_theft__Shoplifting039_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The person is seen picking up an item, examining it briefly, and placing it into a shopping basket. There is no evidence of concealment or hiding the item on their body. The behavior aligns with normal shopping activity.","latency_ms":1742.5,"agreement_hint":"miss_pos","center_ts":82.36666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting039_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__0&file=kf_00_81.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__0&file=kf_01_82.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__0&file=kf_02_82.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__0&file=kf_03_83.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a person standing near a display table and shelf, facing away from the camera. No concealment into bag, pocket, or clothing is visible. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1405.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the customer is seen moving items from a display counter and concealing them under their clothing (waistband/pants area) in a manner consistent with hiding unpaid merchandise, matching multi-frame behavior indicating concealment.","latency_ms":2527.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The person is standing near a display area, facing the shelves and looking toward the entrance, with hands on hips in a relaxed posture. No visual evidence of picking up, holding, or concealing any item is present across the frames. The behavior aligns with normal browsing — possibly waiting or observing — and no concealment action (e.g., into bag/pocket/clothes) is observed. L1 event 'qty_spike' alone is insufficient without visual confirmation of theft.","latency_ms":2279.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen picking up an item, examining it briefly, and placing it into a shopping basket. There is no evidence of concealment or hiding the item on their body. The behavior aligns with normal shopping activity.","latency_ms":1742.5}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting039_x264__C_2__qty_spike__1","clip_id":"ucf_theft__Shoplifting039_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The customer is seen picking up an item, holding it briefly, and examining it while standing near the checkout counter. There is no visible concealment into a bag, pocket, or clothing, and the behavior aligns with normal shopping activity rather than shoplifting intent.","latency_ms":2523.8,"agreement_hint":"miss_pos","center_ts":82.36666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting039_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__qty_spike__1&file=kf_00_81.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__qty_spike__1&file=kf_01_82.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__qty_spike__1&file=kf_02_82.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__qty_spike__1&file=kf_03_83.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a person standing near a display table and then walking toward the exit. No visual evidence of concealing merchandise into a bag, pocket, or clothing is visible. The L1 qty_spike event is a soft hint and not supported by clear concealment behavior in the provided keyframes.","latency_ms":1481.4},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the customer is seen moving items from a display area and concealing them under their clothing (torso/waist area) without any visible payment action, consistent with hiding unpaid merchandise. The L1 qty_spike event aligns with the observed multi-frame behavior of handling and concealing products.","latency_ms":3204.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The person is standing near a display with hands on hips, facing the entrance/exit area, and appears to be browsing or waiting. No visual evidence of picking up, holding, or concealing any merchandise. The L1 event 'qty_spike' is likely a false positive (e.g., due to motion detection or proxy signal), but without actual visual confirmation of item handling or concealment, this behavior aligns with normal browsing. No concealment action is observed across frames.","latency_ms":3609.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is seen picking up an item, holding it briefly, and examining it while standing near the checkout counter. There is no visible concealment into a bag, pocket, or clothing, and the behavior aligns with normal shopping activity rather than shoplifting intent.","latency_ms":2523.8}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_10__1","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The customer is picking up and examining clothing items from the rack, which is consistent with normal shopping behavior. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames.","latency_ms":1515.5,"agreement_hint":"miss_pos","center_ts":43.166666666666664,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__1&file=kf_00_42.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__1&file=kf_01_42.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__1&file=kf_02_43.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__1&file=kf_03_44.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show customers browsing and handling clothing on racks, with no visible concealment into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding unpaid merchandise.","latency_ms":1478.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer with dark hair in a white top is observed moving clothing from the rack and tucking it into the back of her jeans (under her clothing) across sequential frames, which constitutes hiding an unpaid product on her body.","latency_ms":2923.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing clothing racks, reaching for items, and appears to be examining or selecting garments in a normal shopping manner. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothes) or intent to steal. The L1 event 'qty_spike' with 'taken_proxy>=2' may reflect rapid item handling during selection, but without visible concealment, it remains consistent with browsing behavior.","latency_ms":2099.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is picking up and examining clothing items from the rack, which is consistent with normal shopping behavior. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames.","latency_ms":1515.5}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_10__conceal__3","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The person is seen picking up and examining clothing items, which is consistent with normal shopping behavior. There is no visible concealment of merchandise into a bag, pocket, or under clothes across the frames.","latency_ms":2072.5,"agreement_hint":"miss_pos","center_ts":41.56666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__conceal__3&file=kf_00_40.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__conceal__3&file=kf_01_41.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__conceal__3&file=kf_02_41.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__conceal__3&file=kf_03_42.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action under clothes, and the multi-frame sequence shows a person in the foreground with a white top and dark hair whose body orientation and hand movements are consistent with hiding an item near the waistband or under clothing while browsing. The concealment is not fully visible due to occlusion, but the behavior aligns with the L1 conceal hint and the trajectory evidence of item disappearance.","latency_ms":1794.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the white long-sleeve shirt repeatedly manipulates clothing near their torso, with multi-frame behavior showing actions consistent with hiding an item under their clothing, matching the L1 conceal event subtype of under_clothes.","latency_ms":3242.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high trajectory score (0.6678) + co_disappear=1.0 across 6 frames strongly indicates concealment under clothes. The person's posture (bending, hand near waist/hip area) and the context of being in a clothing store support intent to hide merchandise without payment. No visible checkout or return actions occur.","latency_ms":2858.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen picking up and examining clothing items, which is consistent with normal shopping behavior. There is no visible concealment of merchandise into a bag, pocket, or under clothes across the frames.","latency_ms":2072.5}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_10__qty_spike__4","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The customer is seen picking up and examining clothing items from the rack, which is consistent with normal shopping behavior. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames.","latency_ms":2199.3,"agreement_hint":"miss_pos","center_ts":43.166666666666664,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__qty_spike__4&file=kf_00_42.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__qty_spike__4&file=kf_01_42.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__qty_spike__4&file=kf_02_43.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__qty_spike__4&file=kf_03_44.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The keyframes show customers browsing and handling clothing on racks in a retail store. No clear concealment into bags, pockets, or clothing is visible across the frames. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding merchandise.","latency_ms":1186.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer in the white top and jeans is observed moving clothing from the rack and positioning items under her lifted top (waist area) across consecutive frames, which constitutes hiding unpaid merchandise on her body. The L1 qty_spike event aligns with the multi-frame behavior of taking items to conceal them, matching the visual evidence of hiding.","latency_ms":2776.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing clothes, reaching into a rack, picking up items, and examining them — typical shopping behavior. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothing) or hiding actions across frames. The L1 'qty_spike' event may reflect rapid item handling during browsing, not theft. No intent to steal is visible.","latency_ms":2088.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is seen picking up and examining clothing items from the rack, which is consistent with normal shopping behavior. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames.","latency_ms":2199.3}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_29__3","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The individuals are seen picking up, holding, and examining clothing items in a typical shopping manner. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames. The behavior aligns with normal browsing and product evaluation.","latency_ms":2214.3,"agreement_hint":"miss_pos","center_ts":157.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__3&file=kf_00_156.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__3&file=kf_01_157.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__3&file=kf_02_157.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__3&file=kf_03_158.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks. No clear concealment into bags, pockets, or clothing is visible across the sequence. The L1 qty_spike signal is a soft hint and lacks matching visual evidence of hiding merchandise.","latency_ms":1415.0},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the white top and jeans is seen moving a clothing item from the rack and concealing it inside the back of their pants (under clothing) across sequential frames, which matches the definition of hiding unpaid merchandise. The L1 qty_spike event aligns with the observed action of taking an item to conceal, supporting the visual evidence.","latency_ms":3317.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customers are actively browsing clothing racks, picking up items, examining them, and placing them back or holding them while shopping—consistent with normal retail behavior. No visual evidence of concealment (e.g., putting items into bags/pockets/clothes without paying) is observed across the frames. The L1 event 'qty_spike' with 'handheld_peak>=2' may reflect brief handling but does not indicate theft without additional concealment cues.","latency_ms":2309.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are seen picking up, holding, and examining clothing items in a typical shopping manner. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames. The behavior aligns with normal browsing and product evaluation.","latency_ms":2214.3}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_29__qty_spike__8","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The individuals are seen picking up, holding, and examining clothing items in a typical shopping manner. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames. The behavior aligns with normal browsing and product evaluation.","latency_ms":2258.6,"agreement_hint":"miss_pos","center_ts":157.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__qty_spike__8&file=kf_00_156.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__qty_spike__8&file=kf_01_157.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__qty_spike__8&file=kf_02_157.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__qty_spike__8&file=kf_03_158.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks. No clear concealment into bags, pockets, or clothing is visible. The L1 qty_spike event is a soft hint and not supported by visual evidence of hiding merchandise.","latency_ms":1299.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"A woman in a white top and jeans is observed over multiple frames placing clothing items into her pants waistband, hiding them from view, which constitutes concealing unpaid merchandise. The L1 qty_spike event aligns with this multi-frame concealment behavior.","latency_ms":3892.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The person is actively browsing clothing racks, picking up and examining items, and holding them visibly while standing near the rack. There is no visual evidence of concealment into bags, pockets, or under clothes. The 'qty_spike' L1 event may reflect multiple items being handled quickly during normal browsing (e.g., checking several garments), but without any indication of hiding or attempting to leave without paying, this remains within normal shopping behavior.","latency_ms":2171.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are seen picking up, holding, and examining clothing items in a typical shopping manner. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames. The behavior aligns with normal browsing and product evaluation.","latency_ms":2258.6}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_4__0","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The individuals are seen browsing through clothing items on the racks, picking up and examining garments. There is no visible concealment of merchandise into bags, pockets, or under clothes. The behavior appears consistent with normal shopping activity.","latency_ms":1793.9,"agreement_hint":"miss_pos","center_ts":13.966666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__0&file=kf_00_12.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__0&file=kf_01_13.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__0&file=kf_02_14.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__0&file=kf_03_15.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks; no concealment into a bag, pocket, or clothing is visible. The L1 qty_spike is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1770.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer in the white top is observed moving an item toward their torso/under their clothing across sequential frames, consistent with hiding an unpaid product, matching the L1 event's handheld peak signal indicating multiple items handled with intent to conceal.","latency_ms":2844.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customers are actively browsing clothing racks, picking up items, examining them, and placing them back on the rack or holding them while shopping. There is no visual evidence of concealment (e.g., putting items into bags, pockets, or under clothes) or intent to steal. The L1 event 'qty_spike' with 'handheld_peak>=2' may reflect multiple items being held briefly for inspection, which is consistent with normal browsing behavior in a retail setting.","latency_ms":2491.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are seen browsing through clothing items on the racks, picking up and examining garments. There is no visible concealment of merchandise into bags, pockets, or under clothes. The behavior appears consistent with normal shopping activity.","latency_ms":1793.9}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_4__qty_spike__1","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The individuals are seen examining and handling clothing items on the racks, consistent with normal shopping behavior. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames.","latency_ms":2091.4,"agreement_hint":"miss_pos","center_ts":13.966666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__qty_spike__1&file=kf_00_12.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__qty_spike__1&file=kf_01_13.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__qty_spike__1&file=kf_02_14.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__qty_spike__1&file=kf_03_15.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks; no concealment into bags, pockets, or clothing is visible. The L1 qty_spike is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":935.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer in the white top is observed moving an item toward their torso/under their clothing across sequential frames, consistent with hiding an unpaid product, supported by the L1 qty_spike event indicating a quantity change associated with this activity.","latency_ms":2453.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customers are actively browsing clothing racks, picking up items, examining them, and placing them back or holding them while shopping—consistent with normal retail behavior. No visual evidence of concealment (e.g., putting items into bags/pockets/clothes) or intent to steal is observed across the frames. The L1 event 'qty_spike' is likely due to multiple items being handled in quick succession during normal browsing (e.g., trying on or comparing), not theft.","latency_ms":2496.2},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are seen examining and handling clothing items on the racks, consistent with normal shopping behavior. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames.","latency_ms":2091.4}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_5__2","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The customer is picking up and examining clothing items, holding them in their hands, and appears to be browsing through the merchandise. There is no visible concealment of items into bags, pockets, or under clothes, and the behavior aligns with normal shopping activity.","latency_ms":2268.7,"agreement_hint":"miss_pos","center_ts":149.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__2&file=kf_00_148.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__2&file=kf_01_149.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__2&file=kf_02_149.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__2&file=kf_03_150.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks; no concealment into bags, pockets, or clothing is visible. The L1 qty_spike is a soft hint only and is not supported by clear visual evidence of hiding merchandise.","latency_ms":1211.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is holding multiple clothing items while browsing the clothing rack, with no visible action of concealing items into a bag, pocket, or under clothes; the behavior is consistent with normal shopping activity of examining or carrying items while browsing.","latency_ms":2590.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing and handling clothing items on a rack, picking up, examining, and repositioning garments in a typical shopping manner. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothes) or intent to steal — the behavior aligns with normal shopping activity. The L1 event 'qty_spike' is likely due to rapid handling of multiple items while browsing, not theft.","latency_ms":3758.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is picking up and examining clothing items, holding them in their hands, and appears to be browsing through the merchandise. There is no visible concealment of items into bags, pockets, or under clothes, and the behavior aligns with normal shopping activity.","latency_ms":2268.7}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_5__conceal__6","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The customer is seen picking up and examining clothing items, placing them into a shopping basket, and interacting with the merchandise in a manner consistent with normal shopping behavior. There is no visible concealment of unpaid items into bags, pockets, or under clothes.","latency_ms":2064.0,"agreement_hint":"miss_pos","center_ts":148.76666666666668,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__conceal__6&file=kf_00_147.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__conceal__6&file=kf_01_148.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__conceal__6&file=kf_02_149.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__conceal__6&file=kf_03_149.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the multi-frame sequence shows a person handling merchandise in a manner consistent with hiding it on their body rather than openly carrying it.","latency_ms":1825.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#5) is holding multiple garments and moving toward their hip pocket (per L1 event subtype 'pocket'), with multi-frame behavior showing the action of positioning items to conceal them on their person, consistent with hiding unpaid merchandise.","latency_ms":3190.3},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' at hip zone, and the trajectory analysis shows co-disappear (item vanishes from view after interaction) with high score (0.65) and 100% dwell ratio. The person's posture and hand motion toward the hip area across multiple frames suggest hiding an item in a pocket or waistband, consistent with concealment intent. No payment or return to shelf is observed.","latency_ms":2657.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is seen picking up and examining clothing items, placing them into a shopping basket, and interacting with the merchandise in a manner consistent with normal shopping behavior. There is no visible concealment of unpaid items into bags, pockets, or under clothes.","latency_ms":2064.0}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_5__qty_spike__7","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The customer is picking up and examining clothing items, holding them against their body, and appears to be shopping normally. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames.","latency_ms":1591.0,"agreement_hint":"miss_pos","center_ts":149.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__qty_spike__7&file=kf_00_148.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__qty_spike__7&file=kf_01_149.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__qty_spike__7&file=kf_02_149.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__qty_spike__7&file=kf_03_150.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The keyframes show customers browsing and handling clothing on racks. No concealment into bags, pockets, or clothing is visible. The L1 qty_spike event is a soft hint and lacks matching visual evidence of theft.","latency_ms":1484.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is holding multiple clothing items while standing at a clothing rack, engaging in normal shopping behavior of examining or selecting merchandise, with no visible concealment of unpaid items into bags, pockets, or under clothes.","latency_ms":3145.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing and handling clothing items on a rack, picking up, examining, and repositioning garments in a typical shopping manner. There is no visual evidence of concealment (e.g., putting items into bags, pockets, or under clothes) or intent to steal — the behavior aligns with normal shopping activity. The L1 event 'qty_spike' may reflect rapid handling but is not supported by visual concealment cues.","latency_ms":3533.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is picking up and examining clothing items, holding them against their body, and appears to be shopping normally. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames.","latency_ms":1591.0}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_71__6","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The person is seen browsing through clothing items on the rack, picking up and examining garments. There is no visible concealment of merchandise into a bag, pocket, or under clothes across the frames. The behavior aligns with normal shopping activity.","latency_ms":1982.4,"agreement_hint":"miss_pos","center_ts":665.9666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__6&file=kf_00_664.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__6&file=kf_01_665.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__6&file=kf_02_666.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__6&file=kf_03_667.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The person is seen browsing clothing racks and holding items near a bag, but there is no clear visual evidence of concealing unpaid merchandise into a bag, pocket, or clothing. The L1 qty_spike event is a soft hint and not sufficient for a concealment determination.","latency_ms":1461.0},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across the sequence of frames, the customer in the turquoise shirt is manipulating clothing from the rack while their personal bag is positioned at their side, with visual evidence of movement that suggests placing an item into the bag, consistent with hiding unpaid merchandise. The L1 qty_spike event aligns with this observed multi-frame behavior of concealing an item.","latency_ms":3151.3},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is browsing clothing racks, standing in front of a rack and appearing to examine items. There is no visual evidence of concealment (e.g., putting items into bag/pocket/clothes) or hiding behavior across frames. The L1 event 'qty_spike' with 'handheld_peak>=2' may indicate brief handling but is consistent with normal shopping (e.g., picking up multiple items to compare), not theft. No intent to steal is visible.","latency_ms":3486.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen browsing through clothing items on the rack, picking up and examining garments. There is no visible concealment of merchandise into a bag, pocket, or under clothes across the frames. The behavior aligns with normal shopping activity.","latency_ms":1982.4}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_71__qty_spike__15","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The customer is seen browsing through clothing items on the rack, picking up and examining garments. There is no visible concealment of merchandise into a bag, pocket, or under clothes. The behavior appears consistent with normal shopping activity.","latency_ms":1965.9,"agreement_hint":"miss_pos","center_ts":665.9666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__qty_spike__15&file=kf_00_664.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__qty_spike__15&file=kf_01_665.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__qty_spike__15&file=kf_02_666.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__qty_spike__15&file=kf_03_667.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a shopper browsing clothing racks with a shoulder bag; no visible concealment into bag, pockets, or clothing is evident across the sequence. The L1 qty_spike is a soft hint only and lacks matching visual concealment evidence.","latency_ms":1122.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the customer uses their open hand to move clothing on the rack while their large shoulder bag is positioned at their side, with visual evidence of the hand moving toward the bag area consistent with hiding an unpaid item; the L1 qty_spike event provides supporting context for potential concealment, matching multi-frame behavior of hiding merchandise in a personal bag.","latency_ms":3954.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is browsing clothing racks, standing in front of merchandise, and appears to be examining items. There is no visual evidence of concealment (e.g., putting items into bag/pocket/clothes) or hiding behavior across the frames. The L1 event 'qty_spike' with 'handheld_peak>=2' may indicate brief handling but does not confirm theft without visible concealment. Since the person remains in the open, interacting with items normally (e.g., looking, possibly touching), this falls under normal shopping behavior.","latency_ms":3364.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is seen browsing through clothing items on the rack, picking up and examining garments. There is no visible concealment of merchandise into a bag, pocket, or under clothes. The behavior appears consistent with normal shopping activity.","latency_ms":1965.9}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_8__4","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The person is examining a red garment by holding it up and looking at it, consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or under clothing, and the L1 event 'qty_spike' does not appear to be supported by clear visual evidence of intent to steal.","latency_ms":2522.4,"agreement_hint":"miss_pos","center_ts":170.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__4&file=kf_00_169.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__4&file=kf_01_170.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__4&file=kf_02_170.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__4&file=kf_03_171.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.85,"agreement_hint":"miss_pos","rationale":"The person is seen holding and examining clothing items on hangers in a retail store, with no visible concealment into a bag, pocket, or clothing. The behavior is consistent with normal shopping and browsing.","latency_ms":1219.1},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is picking up, holding, and examining a red garment from a clothing rack, which is normal shopping behavior with no visible concealment of unpaid merchandise.","latency_ms":2701.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing and handling clothing items on a rack, selecting and examining them in a typical shopping manner. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothes) or intent to steal — the actions are consistent with normal shopping behavior (picking up, holding, inspecting, and likely returning or placing in cart, though cart not visible). L1 event 'qty_spike' alone is insufficient without visual confirmation of concealment; here, the person’s actions remain transparent and non-suspicious.","latency_ms":3321.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is examining a red garment by holding it up and looking at it, consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or under clothing, and the L1 event 'qty_spike' does not appear to be supported by clear visual evidence of intent to steal.","latency_ms":2522.4}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_8__qty_spike__9","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The person is picking up and examining a red garment from the rack, which is consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or under clothing, and no multi-frame intent to hide the item is evident.","latency_ms":1820.4,"agreement_hint":"miss_pos","center_ts":170.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__qty_spike__9&file=kf_00_169.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__qty_spike__9&file=kf_01_170.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__qty_spike__9&file=kf_02_170.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__qty_spike__9&file=kf_03_171.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.85,"agreement_hint":"miss_pos","rationale":"The person is seen holding and examining clothing items on hangers in a retail setting, with no visible concealment into a bag, pocket, or clothing. The behavior is consistent with normal shopping and browsing.","latency_ms":1284.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is only picking up, holding, and examining a red garment from a clothing rack across the provided frames, with no action of concealing the item into a bag, pocket, or under clothes. The L1 qty_spike event is a soft hint without matching concealment visual evidence, so normal shopping behavior is confirmed.","latency_ms":3124.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing and handling clothing items on a rack, selecting and examining them in a typical shopping manner. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothes) or intent to steal — the actions are consistent with normal retail browsing behavior. The L1 event 'qty_spike' may reflect multiple items being handled quickly but does not override the clear visual context of examination and selection without hiding.","latency_ms":2488.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is picking up and examining a red garment from the rack, which is consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or under clothing, and no multi-frame intent to hide the item is evident.","latency_ms":1820.4}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting041_x264__C_11__0","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"rationale":"The individuals are at a checkout counter, with one person appearing to pay or complete a transaction while the other waits nearby. There is no visible concealment of merchandise into bags, pockets, or clothing, and their behavior aligns with typical checkout activity.","latency_ms":1699.8,"agreement_hint":"miss_pos","center_ts":137.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__0&file=kf_00_136.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__0&file=kf_01_137.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__0&file=kf_02_137.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__0&file=kf_03_138.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and moving through the store; no clear concealment into bag, pocket, or clothing is visible across the sequence.","latency_ms":1150.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Multi-frame behavior shows the individual in the pink outfit moving items toward their body, with actions consistent with hiding unpaid merchandise, supported by the L1 qty_spike event indicating an unusual number of items were taken from the shelf area.","latency_ms":3187.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person in maroon (C#11) is seen moving toward the exit while holding an item close to their body, and then appears to duck or turn quickly near the doorway—consistent with concealing merchandise under clothing or into a bag. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, and the multi-frame behavior shows intent to hide rather than return or pay. No visible checkout or return occurs.","latency_ms":2428.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are at a checkout counter, with one person appearing to pay or complete a transaction while the other waits nearby. There is no visible concealment of merchandise into bags, pockets, or clothing, and their behavior aligns with typical checkout activity.","latency_ms":1699.8}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting041_x264__C_11__conceal__3","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.95,"rationale":"The person is at the checkout counter, interacting with the cashier and placing items into a shopping bag. There is no evidence of concealment or hiding unpaid merchandise. The behavior aligns with normal checkout procedures.","latency_ms":2201.0,"agreement_hint":"miss_pos","center_ts":124.76666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__conceal__3&file=kf_00_123.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__conceal__3&file=kf_01_124.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__conceal__3&file=kf_02_125.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__conceal__3&file=kf_03_125.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The keyframes show individuals near a counter with bags, but no clear concealment of unpaid merchandise into pockets or clothing is visible. The L1 conceal event is a soft hint, but visual evidence does not confirm shoplifting intent.","latency_ms":1637.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Visual evidence across frames shows a person placing an item into a pocket (consistent with the L1 conceal event subtype of pocket) while moving toward the exit, with multi-frame behavior indicating hiding an unpaid item rather than normal shopping or checkout.","latency_ms":3198.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (product vanishing from view after interaction) and dwell ratio of 1.0, strongly indicates concealment. The person in the pink dress is at the counter, and the visual flow suggests they placed an item into a pocket or under clothing near the hip area—consistent with multi-frame concealment intent. No payment is observed, and the risk score, though low, aligns with the soft signal. This meets the criteria for 'conceal_unpaid' as defined: hiding on the body without visible checkout.","latency_ms":3176.4},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The person is at the checkout counter, interacting with the cashier and placing items into a shopping bag. There is no evidence of concealment or hiding unpaid merchandise. The behavior aligns with normal checkout procedures.","latency_ms":2201.0}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting041_x264__C_11__qty_spike__4","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"rationale":"The individuals are at a checkout counter, with one person appearing to be in the process of paying or handing over items. There is no visible concealment of merchandise into bags, pockets, or under clothing. The behavior aligns with normal checkout activity.","latency_ms":1687.7,"agreement_hint":"miss_pos","center_ts":137.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__qty_spike__4&file=kf_00_136.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__qty_spike__4&file=kf_01_137.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__qty_spike__4&file=kf_02_137.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__qty_spike__4&file=kf_03_138.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and moving through the store; no clear concealment into bag, pocket, or clothing is visible across the sequence. The L1 qty_spike is a soft hint only and lacks matching visual evidence of hiding merchandise.","latency_ms":1958.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Multi-frame behavior shows the customer in the pink dress moving items toward her body, with actions consistent with hiding unpaid merchandise, supported by the L1 qty_spike event indicating a quantity change that aligns with concealment intent across the sequence of frames.","latency_ms":3784.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person in maroon (C#11) is seen moving toward the exit while holding an item close to their body, and then appears to duck or turn quickly near the doorway—consistent with concealing merchandise under clothing or into a bag. The L1 event 'qty_spike' with multiple takes and handheld peak supports this intent, and no payment or return action is observed. The behavior across frames shows clear concealment intent rather than browsing or checkout.","latency_ms":2752.3},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are at a checkout counter, with one person appearing to be in the process of paying or handing over items. There is no visible concealment of merchandise into bags, pockets, or under clothing. The behavior aligns with normal checkout activity.","latency_ms":1687.7}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting041_x264__C_13__2","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"rationale":"The customer is at the checkout counter, interacting with the cashier and handling products in a manner consistent with paying for items. There is no visible concealment of merchandise into bags, pockets, or under clothing.","latency_ms":1766.5,"agreement_hint":"miss_pos","center_ts":391.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__2&file=kf_00_390.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__2&file=kf_01_390.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__2&file=kf_02_391.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__2&file=kf_03_392.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show two individuals standing at a counter with visible merchandise; no concealment into bags, pockets, or clothing is evident. The L1 qty_spike is a soft hint only and lacks visual confirmation of hiding behavior.","latency_ms":1712.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is holding and examining a product in a normal shopping manner, with no visible concealment into bags, pockets, or under clothing across the sequence of frames. The L1 qty_spike event is a soft hint without matching visual evidence of concealment.","latency_ms":2733.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#13) is seen interacting with the counter while another person stands nearby. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, but more importantly, the customer’s posture—bending slightly, hands near the waist/counter area, and the presence of a white bag on the counter—combined with the context of the store layout and lack of visible payment, strongly indicates concealment of unpaid merchandise. No clear checkout or return action is observed; instead, the behavior aligns with shoplifting intent where items are hidden on the body or in bags without payment. The multi-frame sequence shows no item being placed into a cart or basket, nor any visible payment action.","latency_ms":3265.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is at the checkout counter, interacting with the cashier and handling products in a manner consistent with paying for items. There is no visible concealment of merchandise into bags, pockets, or under clothing.","latency_ms":1766.5}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting041_x264__C_13__conceal__6","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"rationale":"The person is standing at a checkout counter with items placed on the counter, indicating they are in the process of paying for their purchases. There is no evidence of concealment or hiding of merchandise.","latency_ms":1692.1,"agreement_hint":"miss_pos","center_ts":360.76666666666665,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__conceal__6&file=kf_00_359.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__conceal__6&file=kf_01_360.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__conceal__6&file=kf_02_361.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__conceal__6&file=kf_03_361.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a conceal action at the hip/pocket with a model score of 0.85, and the keyframes show a person in a maroon outfit standing near a counter with items, consistent with hiding merchandise on the body.","latency_ms":3158.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The woman in the maroon sari is seen moving an item toward her hip pocket across sequential frames, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior showing intent to hide the unpaid item on her person.","latency_ms":2422.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after approach) and high model score (0.85), strongly suggests the person concealed an item in their pocket or clothing. The multi-frame behavior shows the person standing near the counter, then turning away while holding something near their hip area—consistent with hiding merchandise. No payment is observed, and no clear return to shelf or cart placement occurs. This meets the criteria for 'conceal_unpaid' as defined: hiding product on body without visible payment intent.","latency_ms":3111.4},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is standing at a checkout counter with items placed on the counter, indicating they are in the process of paying for their purchases. There is no evidence of concealment or hiding of merchandise.","latency_ms":1692.1}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting041_x264__C_13__qty_spike__7","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"rationale":"The customer is at the checkout counter, interacting with the cashier and handling products in a manner consistent with paying for items. There is no evidence of concealment or hiding unpaid merchandise.","latency_ms":2899.1,"agreement_hint":"miss_pos","center_ts":391.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__qty_spike__7&file=kf_00_390.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__qty_spike__7&file=kf_01_390.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__qty_spike__7&file=kf_02_391.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__qty_spike__7&file=kf_03_392.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show two individuals standing at a counter with visible merchandise; no concealment into bags, pockets, or clothing is evident. The L1 qty_spike is a soft proxy and lacks visual confirmation of hiding behavior.","latency_ms":1395.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is holding and examining a product over the counter, consistent with normal shopping behavior of inspecting merchandise, with no visual evidence of concealing unpaid items into a bag, pocket, or under clothes.","latency_ms":2677.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#13) is seen interacting with the counter while another person stands nearby. The L1 event 'qty_spike' and high 'handheld_peak' suggest multiple items were handled quickly. In the sequence, the customer’s hands are near the counter surface, and there is a white bag or item being held close to the body—consistent with concealing merchandise under clothing or into a bag. No payment is visible, and the behavior aligns with shoplifting intent: rapid handling of multiple items without placing them in a cart or basket, followed by potential concealment. The presence of multiple items on the counter and the customer’s posture indicate an attempt to hide goods rather than normal browsing.","latency_ms":3449.3},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is at the checkout counter, interacting with the cashier and handling products in a manner consistent with paying for items. There is no evidence of concealment or hiding unpaid merchandise.","latency_ms":2899.1}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting041_x264__C_7__conceal__0","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"rationale":"The person is at a checkout counter, interacting with the cashier and appears to be in the process of paying for items. There is no visible concealment or intent to hide merchandise.","latency_ms":1801.8,"agreement_hint":"miss_pos","center_ts":15.566666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__conceal__0&file=kf_00_14.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__conceal__0&file=kf_01_15.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__conceal__0&file=kf_02_15.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__conceal__0&file=kf_03_16.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.4,"agreement_hint":"uncertain","rationale":"The L1 event suggests a concealment into a pocket at the hip, but the provided keyframes show only general store activity with people browsing and holding items. No clear visual evidence of hiding merchandise in clothing or a bag is visible across the frames.","latency_ms":1578.8},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the blue top is observed over consecutive frames moving an item toward their hip pocket (consistent with the L1 conceal event subtype of pocket), showing multi-frame behavior of hiding an unpaid product on their person.","latency_ms":2859.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with the person's posture (bending slightly toward the counter while holding a child), suggests an attempt to hide an item in their clothing or pocket. The multi-frame context shows no clear payment action, and the person is not visibly placing items into a cart or basket. The high model score (0.85) and legacy streak (5) support this interpretation despite low trajectory evidence.","latency_ms":2778.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is at a checkout counter, interacting with the cashier and appears to be in the process of paying for items. There is no visible concealment or intent to hide merchandise.","latency_ms":1801.8}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"zenodo_theft__main220_Trim5__C_1__conceal__0","clip_id":"zenodo_theft__main220_Trim5","weak_label":"positive","l1_event_type":"conceal","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The individual is holding a shopping basket and examining products on the shelves, consistent with normal shopping behavior. There is no visible concealment of merchandise into a bag, pocket, or under clothing across the frames.","latency_ms":2492.2,"agreement_hint":"miss_pos","center_ts":1.5666666666666667,"corpus":"zenodo","media_url":null,"playable":false,"keyframe_urls":["/api/path1_case_keyframe?case_id=zenodo_theft__main220_Trim5__C_1__conceal__0&file=kf_00_0.43s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main220_Trim5__C_1__conceal__0&file=kf_01_1.20s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main220_Trim5__C_1__conceal__0&file=kf_02_1.93s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main220_Trim5__C_1__conceal__0&file=kf_03_2.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person is seen holding a shopping basket while reaching toward the shelf, and the L1 event indicates a concealment action into a pocket at the hip. The multi-frame sequence shows the person moving through the aisle with the basket, consistent with hiding merchandise rather than normal browsing or checkout.","latency_ms":1373.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer is seen moving an item from the shelf toward his hip pocket (as indicated by L1 conceal event subtype pocket) across sequential frames, hiding the item from view rather than placing it into the shopping basket, consistent with concealing unpaid merchandise.","latency_ms":2790.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' and zone 'hip', supported by trajectory evidence showing co-disappearance (item vanishes from view after interaction) and high model score (0.85). Visually, the person picks up an item (frame 1), then in subsequent frames (2–4) walks away while holding the basket but also appears to have the item tucked into their pocket or waist area—consistent with concealment behavior. No visible placement into cart/basket or return to shelf occurs; no checkout is seen. This meets the criteria for 'conceal_unpaid' as defined: hiding product on body with multi-frame intent, not just a single grab.","latency_ms":3486.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is holding a shopping basket and examining products on the shelves, consistent with normal shopping behavior. There is no visible concealment of merchandise into a bag, pocket, or under clothing across the frames.","latency_ms":2492.2}]}],"keep_ok":[{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"dcsass__demo_dcsass_03__C_2__conceal__0","clip_id":"dcsass__demo_dcsass_03","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen making a deliberate motion consistent with concealing an item into their pocket or clothing, as indicated by the L1 event 'conceal' and supported by the visual evidence of their hand positioning near their hip area.","latency_ms":2629.2,"agreement_hint":"keep_ok","center_ts":1.9666666666666666,"corpus":"demo","media_url":"/api/media/sample/demo_dcsass_03.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=dcsass__demo_dcsass_03__C_2__conceal__0&file=kf_00_0.83s.jpg","/api/path1_case_keyframe?case_id=dcsass__demo_dcsass_03__C_2__conceal__0&file=kf_01_1.60s.jpg","/api/path1_case_keyframe?case_id=dcsass__demo_dcsass_03__C_2__conceal__0&file=kf_02_2.33s.jpg","/api/path1_case_keyframe?case_id=dcsass__demo_dcsass_03__C_2__conceal__0&file=kf_03_2.97s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The L1 event suggests a concealment into a pocket at the hip, but the provided keyframes are too blurry and low-resolution to visually confirm any item being hidden. The person in the blue cap is seen handling something near their chest/waist, but without clear visual evidence of the item or the concealment action, a definitive label cannot be assigned.","latency_ms":1409.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Multi-frame visual evidence shows a customer (person P#2) moving an item toward their hip pocket, consistent with the L1 conceal event subtype of pocket concealment, indicating hiding an unpaid product on their body.","latency_ms":2886.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with the trajectory evidence showing co-disappearance (item vanishes from view after approach) and high dwell ratio (0.833), strongly suggests the person is concealing an item in their pocket or clothing. The person's hand movements near the hip area across multiple frames (13:09:17–13:09:19) are consistent with hiding merchandise, and the risk score, though low, aligns with this behavior. No visual of payment or return to shelf occurs, and the action is not typical browsing.","latency_ms":3145.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen making a deliberate motion consistent with concealing an item into their pocket or clothing, as indicated by the L1 event 'conceal' and supported by the visual evidence of their hand positioning near their hip area.","latency_ms":2629.2}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting012_x264__C_14__conceal__7","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual in the foreground is seen placing an item into their pocket, consistent with concealment behavior. The L1 event 'conceal' further supports this inference, as it aligns with the visual evidence of hiding unpaid merchandise.","latency_ms":1749.9,"agreement_hint":"keep_ok","center_ts":562.7666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_14__conceal__7&file=kf_00_561.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_14__conceal__7&file=kf_01_562.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_14__conceal__7&file=kf_02_563.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_14__conceal__7&file=kf_03_563.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show the person in a position consistent with hiding merchandise near the waist area while browsing the display.","latency_ms":1548.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.85,"agreement_hint":"miss_pos","rationale":"The person in the white shirt is handling and examining fabric products on the store table, which is normal shopping behavior consistent with browsing merchandise, with no visual evidence of concealing unpaid items into a bag, pocket, or under clothes. The L1 conceal event is a soft hint that is not supported by clear visual evidence of hiding merchandise.","latency_ms":3134.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (1.0) and high dwell ratio (0.833), indicates the customer likely concealed an item in their pocket or waist area. The person’s posture—bending slightly, hand near hip/low torso—and the absence of visible payment or cart placement across multiple frames support concealment intent rather than browsing or checkout. No clear visual of the item being hidden is seen in these frames, but the multi-frame behavioral pattern and L1 metadata strongly suggest unpaid concealment.","latency_ms":3048.4},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the foreground is seen placing an item into their pocket, consistent with concealment behavior. The L1 event 'conceal' further supports this inference, as it aligns with the visual evidence of hiding unpaid merchandise.","latency_ms":1749.9}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting012_x264__C_20__conceal__4","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen placing a large, patterned fabric item into their bag or pocket area near the checkout counter, consistent with concealment behavior. The surrounding context of other shoppers and staff does not contradict this intent.","latency_ms":2191.8,"agreement_hint":"keep_ok","center_ts":417.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_20__conceal__4&file=kf_00_416.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_20__conceal__4&file=kf_01_416.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_20__conceal__4&file=kf_02_417.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_20__conceal__4&file=kf_03_418.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a model score of 0.85, and the keyframes show the person in an orange top interacting with merchandise at a display table. While the exact concealment is not perfectly clear in the low-resolution frames, the multi-frame behavior and L1 evidence suggest the person is hiding unpaid merchandise on their body.","latency_ms":1494.8},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the yellow top interacts with merchandise across multiple frames, with L1 event indicating concealment in a hip pocket; multi-frame behavior shows handling of goods consistent with hiding unpaid items, matching the conceal_unpaid criteria.","latency_ms":3008.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after interaction) and high model score (0.85), strongly indicates the person is concealing merchandise in their pocket or clothing. The multi-frame behavior shows them handling fabric items near the counter, then moving with a posture suggesting hidden placement—consistent with shoplifting intent. No payment or visible return to shelf occurs.","latency_ms":2698.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing a large, patterned fabric item into their bag or pocket area near the checkout counter, consistent with concealment behavior. The surrounding context of other shoppers and staff does not contradict this intent.","latency_ms":2191.8}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting012_x264__C_34__conceal__8","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer is seen placing an item into their pocket (as indicated by the L1 event 'conceal' and visual evidence of hand movement toward the hip area), which constitutes hiding unpaid merchandise on their body.","latency_ms":2347.1,"agreement_hint":"keep_ok","center_ts":659.9666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_34__conceal__8&file=kf_00_658.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_34__conceal__8&file=kf_01_659.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_34__conceal__8&file=kf_02_660.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_34__conceal__8&file=kf_03_661.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The L1 event suggests a concealment into a pocket at the hip, but the provided keyframes do not clearly show a person concealing unpaid merchandise. The frames show a shop setting with people browsing and a person seated, but no visible act of hiding an item into clothing or a bag is evident. Without clear visual confirmation of concealment, the label is uncertain.","latency_ms":1560.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The male individual in the white shirt is observed moving his hand toward his hip pocket (consistent with the L1 event's subtype of pocket concealment) across sequential frames, with multi-frame behavior indicating an action to hide an unpaid item in his clothing pocket, matching the conceal_unpaid definition.","latency_ms":3128.7},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (1.0) and dwell ratio 1.0 across 4 frames, indicates the person likely concealed an item in their pocket or waist area. The person is seated near a table with merchandise, and the timing and behavior align with hiding an item without payment. No visual of the actual concealment is seen, but the multi-frame pattern and high model score (0.85) support this inference.","latency_ms":2752.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item into their pocket (as indicated by the L1 event 'conceal' and visual evidence of hand movement toward the hip area), which constitutes hiding unpaid merchandise on their body.","latency_ms":2347.1}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting014_x264__C_1__conceal__1","clip_id":"ucf_theft__Shoplifting014_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen placing an item into their pocket or waistband area, which is consistent with concealment behavior. This action, combined with the L1 event 'conceal' and the visual evidence of the item being hidden on the body, strongly suggests intent to steal unpaid merchandise.","latency_ms":1722.4,"agreement_hint":"keep_ok","center_ts":754.7666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting014_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_1__conceal__1&file=kf_00_753.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_1__conceal__1&file=kf_01_754.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_1__conceal__1&file=kf_02_755.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_1__conceal__1&file=kf_03_755.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the orange outfit is seen moving through the store and appears to be concealing an item under her clothing or in a bag, consistent with the L1 conceal event indicating a pocket/hip concealment.","latency_ms":1336.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the patterned top and red pants is observed moving an item from the shelf area toward their hip pocket across consecutive frames, matching the L1 conceal event subtype of pocket concealment, with visual evidence of hiding an unpaid product on their person.","latency_ms":2729.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' and zone 'hip', and the visual sequence shows the person (in red/orange attire) turning away from the shelf, bringing their hands toward their hip area while holding a dark item, consistent with pocketing or concealing merchandise under clothing. The multi-frame behavior supports concealment intent rather than browsing or checkout. No payment is observed, and the risk score, though low, aligns with the visual evidence of hiding an item on the body.","latency_ms":2899.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their pocket or waistband area, which is consistent with concealment behavior. This action, combined with the L1 event 'conceal' and the visual evidence of the item being hidden on the body, strongly suggests intent to steal unpaid merchandise.","latency_ms":1722.4}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting014_x264__C_4__conceal__0","clip_id":"ucf_theft__Shoplifting014_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen placing an item under their clothing, which is consistent with concealment behavior. The L1 event 'conceal' further supports this inference.","latency_ms":2596.6,"agreement_hint":"keep_ok","center_ts":87.96666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting014_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_4__conceal__0&file=kf_00_86.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_4__conceal__0&file=kf_01_87.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_4__conceal__0&file=kf_02_88.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_4__conceal__0&file=kf_03_89.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The person in red is seen handling merchandise near a rack and then turning away while adjusting her clothing, consistent with concealing an item under her clothes. The L1 event 'conceal' with subtype 'under_clothes' and high model score supports this, and the multi-frame sequence shows a clear hiding action rather than normal browsing.","latency_ms":1563.0},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer interacts with clothing on a rack, and multi-frame behavior shows an action consistent with hiding an item under her clothing (matching the L1 conceal event subtype of under_clothes), with no visible payment action or return to shelf for the item, indicating concealment of unpaid merchandise.","latency_ms":3259.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 0.6667) indicates the person likely concealed an item under clothing. In the frames, the person is seen adjusting her headscarf/face area while holding a garment, which aligns with hiding an item under clothes — a classic shoplifting tactic. No payment or return to shelf is observed, and the behavior is inconsistent with normal browsing.","latency_ms":2715.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item under their clothing, which is consistent with concealment behavior. The L1 event 'conceal' further supports this inference.","latency_ms":2596.6}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting014_x264__C_77__conceal__2","clip_id":"ucf_theft__Shoplifting014_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen placing an item into their pocket, which is consistent with concealment behavior. The L1 event 'conceal' further supports this inference.","latency_ms":1917.0,"agreement_hint":"keep_ok","center_ts":1947.9666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting014_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_77__conceal__2&file=kf_00_1946.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_77__conceal__2&file=kf_01_1947.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_77__conceal__2&file=kf_02_1948.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_77__conceal__2&file=kf_03_1949.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person is seen holding a dark item and moving it toward her hip/pocket area while turning away from the camera, consistent with the L1 conceal event indicating a pocket concealment at the hip. The multi-frame sequence shows the item disappearing from view near her body, suggesting unpaid concealment rather than normal browsing.","latency_ms":1657.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Multi-frame visual evidence shows the customer moving an item toward their hip pocket (consistent with the L1 conceal event subtype of pocket), hiding the item from view as part of a shoplifting-related concealment action.","latency_ms":2608.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with the trajectory evidence showing co-disappearance (item vanishes from visible hand into hip area) and high dwell ratio (0.8), strongly indicates concealment. The person’s posture and movement—reaching toward the hip while holding an item in the other hand, then turning away without placing it in a cart or basket—supports intent to hide unpaid merchandise. No payment or checkout is observed.","latency_ms":2693.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their pocket, which is consistent with concealment behavior. The L1 event 'conceal' further supports this inference.","latency_ms":1917.0}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting030_x264__C_10__conceal__5","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen placing an item into their backpack, which is a clear act of concealing unpaid merchandise. This behavior aligns with the 'conceal_unpaid' label as it involves hiding an item on their person without proceeding to checkout.","latency_ms":2385.8,"agreement_hint":"keep_ok","center_ts":222.76666666666668,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_10__conceal__5&file=kf_00_221.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_10__conceal__5&file=kf_01_222.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_10__conceal__5&file=kf_02_223.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_10__conceal__5&file=kf_03_223.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.4,"agreement_hint":"uncertain","rationale":"The overhead frames show multiple shoppers near a display counter, but no clear concealment into a pocket, bag, or clothing is visible. The L1 conceal hint is not sufficiently supported by the visuals, so the action cannot be confirmed.","latency_ms":1275.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#10) is observed moving an item toward their hip pocket across sequential frames, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior consistent with hiding an unpaid product.","latency_ms":2425.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (1.0) and high dwell ratio (0.833), indicates the person likely concealed an item in their pocket or waist area. The person’s posture and hand movement near the hip area across multiple frames support this, and the risk score is low but the visual trajectory pattern strongly suggests concealment rather than normal browsing. No payment or return to shelf is observed.","latency_ms":3096.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their backpack, which is a clear act of concealing unpaid merchandise. This behavior aligns with the 'conceal_unpaid' label as it involves hiding an item on their person without proceeding to checkout.","latency_ms":2385.8}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting030_x264__C_11__1","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"steal","vlm_steal":true,"confidence":0.9,"rationale":"The person in the orange shirt is seen concealing an item under their arm while standing near the checkout counter, indicating clear intent to shoplift. This behavior aligns with the 'steal' label as it shows concealment of unpaid merchandise.","latency_ms":2066.3,"agreement_hint":"keep_ok","center_ts":203.16666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__1&file=kf_00_202.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__1&file=kf_01_202.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__1&file=kf_02_203.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__1&file=kf_03_204.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show multiple people in a retail environment, with some individuals holding or examining items near shelves and counters. There is no clear visual evidence of concealing unpaid merchandise into bags, pockets, or clothing across the frames. The L1 event is a soft qty_spike hint without matching visual concealment evidence, so the behavior appears to be normal shopping or browsing.","latency_ms":1452.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the sleeveless patterned top moves an item from the shelf into their brown bag across sequential frames, hiding the product in the bag rather than placing it visibly for checkout or return, matching the definition of concealing unpaid merchandise.","latency_ms":3074.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer in the blue shirt (C#11) is seen reaching toward a shelf, then quickly moving with a sudden motion while holding an item close to their body. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, and the person’s posture—bending slightly, keeping arms close, and moving away from the display without placing the item in a visible cart or basket—indicates concealment intent. No clear checkout or return action is observed, and the behavior deviates from normal browsing. The presence of other customers nearby does not negate the suspicious multi-frame pattern of hiding merchandise.","latency_ms":3507.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"steal","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person in the orange shirt is seen concealing an item under their arm while standing near the checkout counter, indicating clear intent to shoplift. This behavior aligns with the 'steal' label as it shows concealment of unpaid merchandise.","latency_ms":2066.3}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting030_x264__C_11__conceal__2","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.95,"rationale":"The individual is seen bending over and placing an item into their waistband or pocket area, consistent with concealing unpaid merchandise. This behavior aligns with the 'conceal' L1 event and demonstrates clear intent to hide the item from view.","latency_ms":2831.2,"agreement_hint":"keep_ok","center_ts":124.76666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__conceal__2&file=kf_00_123.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__conceal__2&file=kf_01_124.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__conceal__2&file=kf_02_125.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__conceal__2&file=kf_03_125.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The L1 event suggests a concealment into a pocket at the hip, but the provided keyframes are too low-resolution and distant to visually confirm any item being hidden. No clear multi-frame concealment behavior is discernible from the images alone.","latency_ms":1375.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#11) is observed in multi-frame behavior consistent with concealing an unpaid item in their hip pocket, matching the L1 conceal event subtype of pocket concealment, with visual trajectory and item evidence supporting the hiding action across frames.","latency_ms":2473.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view) and high model score (0.85), strongly indicates the person is hiding an item in their pocket or clothing. The multi-frame behavior shows the individual leaning forward and making a motion consistent with concealing an object at the hip, which aligns with the 'conceal_unpaid' label per rules—specifically, concealment into clothing/pocket, not just holding. No payment or visible return to shelf occurs.","latency_ms":2794.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.95,"agreement_hint":"keep_ok","rationale":"The individual is seen bending over and placing an item into their waistband or pocket area, consistent with concealing unpaid merchandise. This behavior aligns with the 'conceal' L1 event and demonstrates clear intent to hide the item from view.","latency_ms":2831.2}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting030_x264__C_11__qty_spike__4","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"steal","vlm_steal":true,"confidence":0.9,"rationale":"The individual in the blue shirt is seen placing an item into their waistband or pocket area, which is consistent with concealment behavior. This action, combined with the proximity to the checkout counter and the presence of other shoppers, strongly suggests an intent to shoplift.","latency_ms":2136.6,"agreement_hint":"keep_ok","center_ts":203.16666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__qty_spike__4&file=kf_00_202.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__qty_spike__4&file=kf_01_202.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__qty_spike__4&file=kf_02_203.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__qty_spike__4&file=kf_03_204.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show multiple shoppers in a store, with individuals holding bags and items, but no clear visual evidence of concealing unpaid merchandise into pockets, bags, or clothing. The L1 qty_spike event is a soft hint and not sufficient without matching visual concealment.","latency_ms":1301.1},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the sleeveless patterned top moves their arm from reaching toward merchandise on the shelf to tucking an item into their brown bag across multiple consecutive frames, demonstrating clear concealment of an unpaid product.","latency_ms":2149.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer in the blue shirt (C#11) is seen reaching into a display area and then quickly moving toward their body while holding an item. In the final frame, they appear to be tucking or hiding the item under their clothing or into a bag, consistent with concealment behavior. The L1 event 'qty_spike' and 'taken_proxy>=2' support multiple items being taken, and the multi-frame sequence shows intent to hide rather than return or place in cart. No visible payment occurs, and the action is inconsistent with normal browsing.","latency_ms":2923.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"steal","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the blue shirt is seen placing an item into their waistband or pocket area, which is consistent with concealment behavior. This action, combined with the proximity to the checkout counter and the presence of other shoppers, strongly suggests an intent to shoplift.","latency_ms":2136.6}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting030_x264__C_1__conceal__1","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer is seen placing an item into their pocket, which is a clear act of concealment. This behavior aligns with the 'conceal' event type and indicates an intent to steal unpaid merchandise.","latency_ms":1637.5,"agreement_hint":"keep_ok","center_ts":92.76666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__conceal__1&file=kf_00_91.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__conceal__1&file=kf_01_92.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__conceal__1&file=kf_02_93.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__conceal__1&file=kf_03_93.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show a person in the foreground with a bag and hand near the hip area, consistent with hiding merchandise. While the visual evidence is not perfectly clear, the combination of the L1 conceal event and the observed posture supports concealment of unpaid merchandise.","latency_ms":1447.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#1) is observed moving an item toward their hip pocket across sequential frames, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior indicating hiding an unpaid product rather than normal shopping activity.","latency_ms":3199.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view) and high model score (0.85), strongly indicates the person is concealing an item in their pocket or clothing. The multi-frame behavior shows them standing near the counter while making a motion consistent with hiding an item, and no payment is observed. This aligns with 'conceal_unpaid' per rules: concealment into body/pocket is confirmed by both visual context and L1 metadata.","latency_ms":3152.2},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item into their pocket, which is a clear act of concealment. This behavior aligns with the 'conceal' event type and indicates an intent to steal unpaid merchandise.","latency_ms":1637.5}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting030_x264__C_20__conceal__6","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen placing an item into their pocket, which is a clear act of concealment. This behavior aligns with the 'conceal_unpaid' label as it indicates an intent to hide merchandise without paying.","latency_ms":1882.9,"agreement_hint":"keep_ok","center_ts":313.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_20__conceal__6&file=kf_00_312.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_20__conceal__6&file=kf_01_313.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_20__conceal__6&file=kf_02_313.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_20__conceal__6&file=kf_03_314.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show a person in a red top and dark pants near a display counter with a hand-to-hip motion consistent with hiding merchandise. While the visual evidence is not perfectly clear, the multi-frame behavior and L1 context support concealment.","latency_ms":1353.1},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the red shirt performs a sequence of actions consistent with concealing an unpaid item: they bend down near the shelf area, then move their hands toward their hip pocket (matching the L1 event's subtype of pocket concealment), with multi-frame behavior showing the action of hiding an item on their person rather than normal browsing or checkout.","latency_ms":2916.7},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly labels 'conceal' with subtype 'pocket' and zone 'hip', and the trajectory evidence shows high dwell ratio (0.833) and co-disappear (1.0), indicating the item was hidden on the person's body. The multi-frame behavior shows the customer in close proximity to a display, then moving away with no visible payment or cart placement, consistent with concealment intent. No checkout or return is observed.","latency_ms":2164.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their pocket, which is a clear act of concealment. This behavior aligns with the 'conceal_unpaid' label as it indicates an intent to hide merchandise without paying.","latency_ms":1882.9}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting030_x264__C_28__conceal__7","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual in the red top is seen placing an item into their pocket, consistent with concealment behavior. This action aligns with the L1 event 'conceal' and indicates intent to hide unpaid merchandise.","latency_ms":2449.6,"agreement_hint":"keep_ok","center_ts":363.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_28__conceal__7&file=kf_00_362.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_28__conceal__7&file=kf_01_362.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_28__conceal__7&file=kf_02_363.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_28__conceal__7&file=kf_03_364.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.3,"agreement_hint":"uncertain","rationale":"The keyframes show multiple people in a store, but no clear visual evidence of a person concealing unpaid merchandise into a bag, pocket, or clothing. The L1 conceal event is a soft hint and cannot be verified from the provided frames.","latency_ms":852.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the light blue shirt performs a sequence of actions across frames: moving toward the right-side display, bending down toward their hip area (matching the L1 event's subtype of pocket concealment), consistent with hiding an unpaid item on their person. The multi-frame behavior aligns with concealment intent rather than normal shopping activity.","latency_ms":3302.3},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' at the hip zone, and the trajectory analysis shows a high co-disappear score (1.0) and dwell ratio (1.0), indicating the item was hidden on the person's body rather than placed in a visible bag or cart. Although no direct visual of the item being pocketed is seen in these frames, the multi-frame behavior (approach, pause at hip, then move away without placing in cart) combined with the strong L1 evidence supports concealment intent. The risk score is low but the model and trajectory scores are high, and the weak label is 'positive' for theft.","latency_ms":2981.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the red top is seen placing an item into their pocket, consistent with concealment behavior. This action aligns with the L1 event 'conceal' and indicates intent to hide unpaid merchandise.","latency_ms":2449.6}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting030_x264__C_2__conceal__0","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is crouched near the checkout counter, with their hands positioned in a way that suggests they are concealing an item under their clothing or in a hidden location. This behavior aligns with the 'under_clothes' concealment pattern indicated by the L1 event and visual evidence.","latency_ms":2537.9,"agreement_hint":"keep_ok","center_ts":16.766666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_2__conceal__0&file=kf_00_15.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_2__conceal__0&file=kf_01_16.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_2__conceal__0&file=kf_02_17.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_2__conceal__0&file=kf_03_17.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the red shirt is seen bending down and interacting with merchandise in a manner consistent with concealing items under clothing or in a bag, as indicated by the L1 event subtype 'under_clothes' and the visual evidence of the person's posture and actions across multiple frames.","latency_ms":1312.8},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the red shirt is holding a product against their torso under their clothing, consistent with multi-frame behavior of concealing an unpaid item, matching the L1 conceal event subtype of under_clothes.","latency_ms":2999.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person (P#2, red top) is crouched near a display counter and appears to be placing an item under their clothing or into a hidden location, consistent with the L1 event 'conceal' and meta subtype 'under_clothes'. The posture, prolonged crouch, and lack of visible payment or return to shelf indicate intent to conceal unpaid merchandise. This matches the definition of 'conceal_unpaid' as hiding items on the body across multiple frames.","latency_ms":2525.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is crouched near the checkout counter, with their hands positioned in a way that suggests they are concealing an item under their clothing or in a hidden location. This behavior aligns with the 'under_clothes' concealment pattern indicated by the L1 event and visual evidence.","latency_ms":2537.9}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting039_x264__C_2__conceal__0","clip_id":"ucf_theft__Shoplifting039_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen concealing an item into their pocket (as indicated by the L1 event 'conceal' with subtype 'pocket'), which aligns with behavior consistent with shoplifting intent. The person's actions across the frames suggest an attempt to hide merchandise without paying.","latency_ms":1958.6,"agreement_hint":"keep_ok","center_ts":10.766666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting039_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__conceal__0&file=kf_00_9.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__conceal__0&file=kf_01_10.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__conceal__0&file=kf_02_11.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__conceal__0&file=kf_03_11.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The keyframes show a person walking through the store, but no clear concealment of merchandise into a bag, pocket, or clothing is visible. The L1 event suggests a concealment at the hip, but the visual evidence does not confirm this action across the frames.","latency_ms":1074.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual is observed moving from the center of the store to the right-side shelf area, with their hand positioned at their hip (matching the L1 conceal event subtype of pocket) across sequential frames, and exits the frame after this action, consistent with hiding an unpaid item in their clothing.","latency_ms":2033.7},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappearance (item vanishes from view) and high score (0.759), strongly indicates the person concealed an item in their pocket or clothing. The person's posture and movement toward the exit without proceeding to checkout support this. No visual of the item being placed in a bag or cart, but the 'pocket' subtype and high confidence in concealment align with 'conceal_unpaid'.","latency_ms":2583.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen concealing an item into their pocket (as indicated by the L1 event 'conceal' with subtype 'pocket'), which aligns with behavior consistent with shoplifting intent. The person's actions across the frames suggest an attempt to hide merchandise without paying.","latency_ms":1958.6}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_29__conceal__5","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer is seen placing an item under their clothing, which is consistent with concealment behavior. This action aligns with the L1 event 'conceal' and indicates an intent to hide unpaid merchandise.","latency_ms":1618.3,"agreement_hint":"keep_ok","center_ts":146.76666666666668,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__conceal__5&file=kf_00_145.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__conceal__5&file=kf_01_146.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__conceal__5&file=kf_02_147.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__conceal__5&file=kf_03_147.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action under clothes, and the multi-frame sequence shows a person in the foreground handling merchandise near their waistline, consistent with hiding unpaid items.","latency_ms":1489.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual with dark hair and white top is observed moving a clothing item toward their underclothes (midsection) across sequential frames, consistent with hiding an unpaid product under clothing, matching the L1 conceal event subtype of under_clothes.","latency_ms":2778.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 1.0) indicates the person likely concealed an item under clothing. The person’s posture—bending slightly, hand near waist/hip area, and holding a bag while standing close to others—supports concealment intent. No visual of the item being placed in a bag or pocket is seen, but the multi-frame behavior (dwell, co-disappear, and lack of visible re-emergence) strongly suggests unpaid concealment. This aligns with the rule that only steal/conceal_unpaid when visuals show concealment into bag/pocket/clothes or clear multi-frame hiding intent.","latency_ms":3463.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item under their clothing, which is consistent with concealment behavior. This action aligns with the L1 event 'conceal' and indicates an intent to hide unpaid merchandise.","latency_ms":1618.3}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_3__conceal__13","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer is seen picking up a purple garment and placing it into their bag, which aligns with the 'conceal' L1 event indicating intent to hide unpaid merchandise. The behavior across frames shows clear concealment into the bag.","latency_ms":2400.8,"agreement_hint":"keep_ok","center_ts":485.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_3__conceal__13&file=kf_00_484.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_3__conceal__13&file=kf_01_484.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_3__conceal__13&file=kf_02_485.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_3__conceal__13&file=kf_03_486.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the multi-frame sequence shows the person handling merchandise in a manner consistent with hiding it on their body rather than browsing or checking out.","latency_ms":1564.4},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the white top is observed moving a purple garment from a display rack and concealing it under their outer clothing at their hip, consistent with the L1 conceal event subtype of pocket/hip concealment, with multi-frame behavior showing the garment being hidden on their body rather than normal shopping activity.","latency_ms":3162.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' at hip level, and the trajectory analysis shows co-disappearance (item vanishes from view after interaction), dwell ratio of 1.0, and high model score (0.85). The person's behavior across frames shows them interacting with merchandise near the hip area, consistent with hiding an item in a pocket or under clothing, without placing it in a visible cart or basket. This aligns with 'conceal_unpaid' as defined: hiding product on the body with clear intent to avoid payment.","latency_ms":2901.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen picking up a purple garment and placing it into their bag, which aligns with the 'conceal' L1 event indicating intent to hide unpaid merchandise. The behavior across frames shows clear concealment into the bag.","latency_ms":2400.8}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_40__conceal__10","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer is seen placing an item into a bag or pocket area near their hip, consistent with concealment behavior. This action aligns with the L1 event 'conceal' and is supported by visual evidence across multiple frames.","latency_ms":2239.8,"agreement_hint":"keep_ok","center_ts":396.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_40__conceal__10&file=kf_00_395.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_40__conceal__10&file=kf_01_396.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_40__conceal__10&file=kf_02_396.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_40__conceal__10&file=kf_03_397.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the multi-frame sequence shows a person in the foreground interacting with merchandise in a manner consistent with hiding an item on their body.","latency_ms":1416.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#40) is observed over multiple frames moving an item toward their hip pocket (consistent with the L1 conceal event subtype of pocket), with multi-frame behavior showing intent to hide the item on their body rather than browse or checkout.","latency_ms":3646.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after interaction) and high model score (0.85), strongly indicates the person concealed an item in their pocket or clothing. The multi-frame behavior shows them interacting with merchandise near the hip area, consistent with hiding an unpaid item. No visual of payment or return to shelf is observed.","latency_ms":2528.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item into a bag or pocket area near their hip, consistent with concealment behavior. This action aligns with the L1 event 'conceal' and is supported by visual evidence across multiple frames.","latency_ms":2239.8}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_48__5","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen holding a garment close to their body and appears to be concealing it under their top or into their bag, consistent with shoplifting intent across multiple frames.","latency_ms":2868.3,"agreement_hint":"keep_ok","center_ts":444.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__5&file=kf_00_443.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__5&file=kf_01_444.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__5&file=kf_02_444.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__5&file=kf_03_445.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks without any visible concealment into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1243.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The woman in the white top is seen holding a dark garment and moving it toward her body/back area across sequential frames, consistent with hiding an unpaid product, supported by the L1 qty_spike event indicating a potential take of multiple items.","latency_ms":2945.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.8,"agreement_hint":"keep_ok","rationale":"The customer (C#48) is seen browsing and then, in the final frames, appears to be placing an item into a bag or pocket while turning away from the rack—consistent with concealment behavior. The L1 event 'qty_spike' and 'taken_proxy>=2' support multiple items being handled, and the multi-frame sequence shows intent to hide merchandise without paying. No visible checkout or return action occurs.","latency_ms":2025.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen holding a garment close to their body and appears to be concealing it under their top or into their bag, consistent with shoplifting intent across multiple frames.","latency_ms":2868.3}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_48__conceal__11","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen placing an item into their front pocket, which is a clear act of concealment. This behavior aligns with the 'conceal_unpaid' label as it indicates an intent to hide merchandise without paying.","latency_ms":2743.8,"agreement_hint":"keep_ok","center_ts":439.96666666666664,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__conceal__11&file=kf_00_438.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__conceal__11&file=kf_01_439.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__conceal__11&file=kf_02_440.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__conceal__11&file=kf_03_441.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The keyframes show a woman in a white top and blue jeans moving through the store and then reaching toward her waistband/hip area in a manner consistent with concealing an item, matching the L1 conceal event (subtype: pocket, zone: hip). The multi-frame sequence captures the concealment motion rather than mere browsing.","latency_ms":1557.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#48) is observed over multiple frames moving their hand toward their hip pocket (per L1 event subtype: pocket, zone: hip) while handling clothing, consistent with hiding an unpaid item on their person, matching the conceal_unpaid criteria of hiding merchandise in a pocket/on the body.","latency_ms":4239.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with high trajectory score (0.7429) and co-disappear signal (1.0), indicates the person likely concealed an item in their hip/pocket area. The person's body language—hand moving toward the hip area while walking away from the rack—and the context of being in a clothing store support this. No visual evidence shows the item being placed in a bag or returned to a shelf, and the risk score is low but the meta data strongly suggests concealment intent. This aligns with 'conceal_unpaid' as defined: hiding merchandise on the body without payment.","latency_ms":3013.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their front pocket, which is a clear act of concealment. This behavior aligns with the 'conceal_unpaid' label as it indicates an intent to hide merchandise without paying.","latency_ms":2743.8}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_48__qty_spike__12","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The person in the blue top is seen placing an item into her bag or under her clothing while browsing, which indicates an intent to conceal unpaid merchandise. This behavior aligns with shoplifting intent across multiple frames.","latency_ms":1846.4,"agreement_hint":"keep_ok","center_ts":444.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__qty_spike__12&file=kf_00_443.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__qty_spike__12&file=kf_01_444.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__qty_spike__12&file=kf_02_444.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__qty_spike__12&file=kf_03_445.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The keyframes show customers browsing and handling clothing on racks without any visible concealment into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding merchandise.","latency_ms":1783.8},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The woman in the white top is seen holding a dark bag and moving toward her torso/side, with multi-frame behavior showing she is concealing an item (consistent with hiding unpaid merchandise) rather than normal shopping actions like examining or placing items in a cart. The L1 qty_spike event aligns with this observed concealment behavior.","latency_ms":2825.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#48) is seen browsing and then, in the final frames, appears to be placing an item into a bag or pocket while turning away from the rack—consistent with concealment behavior. The L1 event 'qty_spike' with taken_proxy=2 and take_burst>=2/25s supports multiple items being handled quickly, and the visual sequence shows her moving toward the exit with a bag that may contain unpaid merchandise. No clear checkout or return action is observed.","latency_ms":2945.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person in the blue top is seen placing an item into her bag or under her clothing while browsing, which indicates an intent to conceal unpaid merchandise. This behavior aligns with shoplifting intent across multiple frames.","latency_ms":1846.4}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_4__conceal__0","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen placing an item into their waistband/pocket area, consistent with concealing unpaid merchandise. This behavior aligns with the 'conceal' L1 event and is supported by visual evidence across multiple frames.","latency_ms":1860.6,"agreement_hint":"keep_ok","center_ts":5.566666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__conceal__0&file=kf_00_4.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__conceal__0&file=kf_01_5.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__conceal__0&file=kf_02_5.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__conceal__0&file=kf_03_6.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The keyframes show a person in the center of the frame with a dark shoulder bag. Across the sequence, they appear to be interacting with merchandise while their body and bag are positioned in a way that suggests concealing an item, consistent with the L1 conceal event (subtype: pocket, zone: hip). The multi-frame behavior indicates hiding intent rather than normal browsing.","latency_ms":2055.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual is observed moving an item toward their hip pocket across sequential frames, consistent with hiding an unpaid item on their person, matching the L1 conceal event subtype of pocket concealment.","latency_ms":2411.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view) and high score (0.6748), indicates the person is hiding an item on their person. The multi-frame behavior shows the individual moving with a bag or item near their hip, consistent with concealment into pocket or under clothing. No payment or return to shelf is observed, supporting unpaid concealment intent.","latency_ms":2614.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their waistband/pocket area, consistent with concealing unpaid merchandise. This behavior aligns with the 'conceal' L1 event and is supported by visual evidence across multiple frames.","latency_ms":1860.6}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_71__conceal__14","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer is seen placing an item under their clothing, which is a clear concealment behavior indicating intent to shoplift. This is supported by the L1 event 'conceal' and the visual evidence of the item being hidden.","latency_ms":1812.0,"agreement_hint":"keep_ok","center_ts":662.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__conceal__14&file=kf_00_661.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__conceal__14&file=kf_01_662.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__conceal__14&file=kf_02_662.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__conceal__14&file=kf_03_663.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The keyframes show a person browsing clothing racks with a shoulder bag, but no clear concealment action (e.g., placing merchandise into the bag or under clothes) is visible across the frames. The L1 conceal hint is not corroborated by visual evidence.","latency_ms":1465.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer is repeatedly reaching into their open bag while browsing clothing racks, with L1 event data indicating a concealment event under clothes, consistent with multi-frame behavior of hiding an unpaid item.","latency_ms":2743.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 1.0) indicates the person likely concealed an item under their clothes. The person is standing near a clothing rack, and while no explicit visual of the concealment is seen in these frames, the consistent context and high-confidence L1 signal support concealment intent. No payment or visible return to shelf occurs, and the behavior aligns with shoplifting via under-clothes concealment.","latency_ms":2903.3},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item under their clothing, which is a clear concealment behavior indicating intent to shoplift. This is supported by the L1 event 'conceal' and the visual evidence of the item being hidden.","latency_ms":1812.0}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_87__7","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen picking up a red garment and placing it into her bag, which indicates an intent to conceal unpaid merchandise. This behavior aligns with the 'conceal_unpaid' label as she actively hides the item from view.","latency_ms":1893.5,"agreement_hint":"keep_ok","center_ts":810.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__7&file=kf_00_809.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__7&file=kf_01_810.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__7&file=kf_02_810.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__7&file=kf_03_811.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The person is seen browsing and handling clothing on racks without any visible concealment into a bag, pocket, or clothing. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1384.0},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across the sequence of frames, the customer is observed interacting with clothing items near the rack, moving toward her patterned bag, and positioning items in a manner consistent with hiding unpaid merchandise in her bag, which aligns with multi-frame behavior indicating concealment of products.","latency_ms":3572.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#87) is seen repeatedly interacting with clothing items in a manner suggesting concealment: she bends down near the floor, reaches into a lower rack area where items are less visible, and appears to manipulate items while partially obscured by her body and bag. Her posture and actions—especially the repeated bending and reaching into low areas without placing items in a visible cart or basket—align with typical shoplifting behavior of hiding merchandise on the person. The L1 event 'qty_spike' and 'taken_proxy>=2' support this, but the visual evidence of concealment (e.g., hiding items under clothes or in bag) is consistent across frames. No clear checkout or return to shelf is observed.","latency_ms":3232.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen picking up a red garment and placing it into her bag, which indicates an intent to conceal unpaid merchandise. This behavior aligns with the 'conceal_unpaid' label as she actively hides the item from view.","latency_ms":1893.5}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_87__conceal__16","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer is seen placing an item into her bag, which is consistent with concealment behavior. The L1 event 'conceal' further supports this inference, as it indicates a potential attempt to hide unpaid merchandise.","latency_ms":2311.6,"agreement_hint":"keep_ok","center_ts":807.5666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__conceal__16&file=kf_00_806.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__conceal__16&file=kf_01_807.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__conceal__16&file=kf_02_807.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__conceal__16&file=kf_03_808.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The person is seen moving through the store and placing an item into a bag/pocket area at the hip, consistent with concealment behavior across multiple frames.","latency_ms":1467.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Multi-frame visual evidence shows the customer moving an item toward her hip pocket (consistent with the L1 conceal event subtype of pocket), with trajectory and model score supporting hiding an unpaid product on her person rather than normal shopping actions.","latency_ms":3366.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (1.0) and high model score (0.85), indicates the person likely concealed an item in their pocket or waist area. The person's posture and movement near the clothing racks, along with the absence of the item in visible hands or cart, support concealment intent rather than browsing or checkout. No payment is observed, and the risk score is low but not zero, suggesting the act may be subtle but still identifiable as concealment.","latency_ms":2807.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item into her bag, which is consistent with concealment behavior. The L1 event 'conceal' further supports this inference, as it indicates a potential attempt to hide unpaid merchandise.","latency_ms":2311.6}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_87__qty_spike__17","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen picking up a red garment and placing it into their bag, which indicates an intent to conceal unpaid merchandise. This behavior aligns with shoplifting intent across multiple frames.","latency_ms":1757.9,"agreement_hint":"keep_ok","center_ts":810.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__qty_spike__17&file=kf_00_809.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__qty_spike__17&file=kf_01_810.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__qty_spike__17&file=kf_02_810.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__qty_spike__17&file=kf_03_811.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The person is seen browsing and handling clothing on racks without any visible concealment into a bag, pocket, or clothing. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1491.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across the sequence of frames, the customer is observed taking a red garment from the clothing rack and moving it toward her large patterned bag, consistent with hiding an unpaid product in her bag. The L1 qty_spike event aligns with the multi-frame action of taking an item to conceal it, matching the visual evidence of hiding merchandise.","latency_ms":3449.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#87) is seen repeatedly interacting with merchandise in a way that suggests concealment: she bends down near the floor, reaches into a low clothing rack, and appears to retrieve items without placing them in a visible basket or cart. Her body posture and hand movements—particularly reaching under or behind racks while keeping her back partially turned—indicate an intent to hide items on her person (e.g., in her bag or clothing). The L1 event 'qty_spike' with 'taken_proxy>=2' and 'take_burst>=2/25s' supports rapid, repeated handling of items, consistent with shoplifting behavior rather than normal browsing. No payment or checkout is observed, and no items are visibly placed in a cart. This aligns with 'conceal_unpaid' as defined: hiding items on the body via multi-frame behavior.","latency_ms":5520.3},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen picking up a red garment and placing it into their bag, which indicates an intent to conceal unpaid merchandise. This behavior aligns with shoplifting intent across multiple frames.","latency_ms":1757.9}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_8__conceal__2","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen making a deliberate motion to conceal an item into their pocket, consistent with shoplifting behavior. The L1 event 'conceal' further supports this inference.","latency_ms":2068.8,"agreement_hint":"keep_ok","center_ts":25.966666666666665,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__conceal__2&file=kf_00_24.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__conceal__2&file=kf_01_25.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__conceal__2&file=kf_02_26.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__conceal__2&file=kf_03_27.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a conceal action at the hip/pocket with a high model score, and the keyframes show the person in the act of handling merchandise near their body in a manner consistent with concealment. While the visual evidence is not perfectly clear, the combination of the L1 event and the observed behavior supports a concealment determination.","latency_ms":1217.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#8) is observed over multiple frames moving an item toward their hip pocket, consistent with the L1 conceal event subtype of pocket concealment, showing multi-frame behavior of hiding an unpaid item on their person.","latency_ms":3069.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view) and high model score (0.85), strongly indicates the person is concealing an item in their pocket or clothing. The multi-frame behavior shows the person holding items while moving toward the hip area, consistent with hiding merchandise without payment. This aligns with the definition of 'conceal_unpaid' — hiding a product on the body — not just browsing.","latency_ms":3059.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen making a deliberate motion to conceal an item into their pocket, consistent with shoplifting behavior. The L1 event 'conceal' further supports this inference.","latency_ms":2068.8}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting041_x264__C_10__conceal__2","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event 'conceal' with subtype 'under_clothes' and the visual evidence of a person placing an item under their clothing strongly indicate intent to steal by concealing unpaid merchandise.","latency_ms":2046.4,"agreement_hint":"keep_ok","center_ts":100.36666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_10__conceal__2&file=kf_00_99.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_10__conceal__2&file=kf_01_100.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_10__conceal__2&file=kf_02_100.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_10__conceal__2&file=kf_03_101.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.4,"agreement_hint":"uncertain","rationale":"The L1 event suggests concealment under clothes, but the keyframes show only people standing and browsing; no clear visual evidence of hiding merchandise on the body is visible across the frames.","latency_ms":1360.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a conceal event under clothes, with model score 0.85 and subtype 'under_clothes'; visual evidence across frames shows the individual in the pink outfit adjusting their upper body/scarf area consistent with hiding an item under clothing, matching the concealment behavior.","latency_ms":2897.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high trajectory score (0.59) + dwell ratio (0.83) indicates sustained, suspicious behavior near the body. The person (C#10, P#10) is standing at the counter while holding an item up near their head/shoulder area for multiple frames — a posture consistent with hiding an item under clothing or in a bag not visible to camera. No payment occurs, and no clear return to shelf or cart is observed. This matches the definition of 'conceal_unpaid' where concealment into clothing is inferred from multi-frame behavior and context, despite lack of direct visual proof of the item being hidden.","latency_ms":3515.4},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and the visual evidence of a person placing an item under their clothing strongly indicate intent to steal by concealing unpaid merchandise.","latency_ms":2046.4}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting041_x264__C_3__conceal__1","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer is seen reaching up to a high shelf and appears to be placing an item into her pocket or bag, consistent with concealment behavior. This action aligns with the L1 event 'conceal' and suggests intent to shoplift.","latency_ms":2691.1,"agreement_hint":"keep_ok","center_ts":24.766666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_3__conceal__1&file=kf_00_23.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_3__conceal__1&file=kf_01_24.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_3__conceal__1&file=kf_02_25.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_3__conceal__1&file=kf_03_25.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show a person in a pink outfit with a white bag near the hip area, consistent with hiding merchandise. While the visual evidence is not perfectly clear, the multi-frame behavior and L1 hint support concealment.","latency_ms":1554.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#3) is observed moving an item toward their hip pocket across sequential frames, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior indicating hiding an unpaid product rather than normal shopping actions.","latency_ms":2842.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (product vanishes from view after interaction) and high model score (0.85), strongly indicates the person concealed an item in their pocket or clothing. The multi-frame behavior shows the individual interacting with shelves, then moving away with no visible payment, supporting concealment intent. No clear checkout or return to shelf is observed.","latency_ms":2451.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen reaching up to a high shelf and appears to be placing an item into her pocket or bag, consistent with concealment behavior. This action aligns with the L1 event 'conceal' and suggests intent to shoplift.","latency_ms":2691.1}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting041_x264__C_7__1","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual in the maroon shirt is seen placing an item into their bag, which is a clear act of concealment. This behavior aligns with shoplifting intent as the item is not visibly placed into a shopping cart or basket for checkout.","latency_ms":2273.1,"agreement_hint":"keep_ok","center_ts":173.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__1&file=kf_00_172.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__1&file=kf_01_173.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__1&file=kf_02_173.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__1&file=kf_03_174.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a person holding a white bag and standing near a counter with items, but there is no clear visual evidence of concealing unpaid merchandise into a bag, pocket, or clothing. The behavior appears consistent with normal shopping or carrying a personal bag.","latency_ms":1434.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the maroon top is seen moving items toward a white bag across consecutive frames, with actions consistent with hiding unpaid merchandise in the bag, matching the definition of concealment of unpaid items.","latency_ms":2300.3},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#7) is seen holding a white bag and then appears to place an item into it while standing near the counter. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, and the behavior of placing something into the bag without proceeding to checkout indicates concealment intent. The person’s posture and movement toward the bag, combined with the context of being near the counter but not paying, support shoplifting intent. No clear payment or return action is observed.","latency_ms":2280.3},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the maroon shirt is seen placing an item into their bag, which is a clear act of concealment. This behavior aligns with shoplifting intent as the item is not visibly placed into a shopping cart or basket for checkout.","latency_ms":2273.1}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting041_x264__C_7__qty_spike__5","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual in the maroon top is seen placing an item into their bag, which is a clear act of concealment. This behavior aligns with shoplifting intent as they attempt to hide unpaid merchandise.","latency_ms":1617.9,"agreement_hint":"keep_ok","center_ts":173.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__qty_spike__5&file=kf_00_172.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__qty_spike__5&file=kf_01_173.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__qty_spike__5&file=kf_02_173.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__qty_spike__5&file=kf_03_174.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a person holding a white bag and interacting with merchandise at a counter, but there is no clear visual evidence of concealing unpaid items into pockets, clothing, or a personal bag. The behavior appears consistent with normal shopping or browsing.","latency_ms":1362.8},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the individual in the maroon top is seen moving items toward their white bag, with actions consistent with hiding unpaid merchandise into the bag rather than normal shopping activity. The L1 qty_spike event aligns with this observed behavior of transferring items to a bag without visible checkout activity.","latency_ms":3093.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#7) is seen holding a white bag and repeatedly reaching toward the counter area while another person stands nearby. The L1 event 'qty_spike' with 'taken_proxy>=2' suggests multiple items were taken, and the behavior of lingering near the counter without placing items in a cart or proceeding to checkout indicates intent to conceal unpaid merchandise. The white bag appears to be used for hiding items, consistent with concealment behavior across frames.","latency_ms":3008.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the maroon top is seen placing an item into their bag, which is a clear act of concealment. This behavior aligns with shoplifting intent as they attempt to hide unpaid merchandise.","latency_ms":1617.9}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"zenodo_theft__main303_Trim1__C_1__0","clip_id":"zenodo_theft__main303_Trim1","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen placing an item into their backpack while walking through the aisle, which indicates an intent to conceal unpaid merchandise. This behavior aligns with shoplifting intent.","latency_ms":2044.7,"agreement_hint":"keep_ok","center_ts":3.566666666666667,"corpus":"zenodo","media_url":null,"playable":false,"keyframe_urls":["/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__0&file=kf_00_2.43s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__0&file=kf_01_3.20s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__0&file=kf_02_3.93s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__0&file=kf_03_3.93s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.6,"agreement_hint":"uncertain","rationale":"The frames show a man walking down an aisle holding a black bag, but there is no clear visual evidence of him placing unpaid merchandise into the bag or concealing items on his person. The L1 qty_spike event is a soft hint and not sufficient without matching visual concealment evidence.","latency_ms":918.1},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the individual is seen adjusting a large black bag against their torso, then lifting it to their shoulder in a manner consistent with concealing unpaid merchandise within the bag, with no visible payment activity to indicate normal checkout. The L1 qty_spike event aligns with the behavior of taking items to conceal, matching multi-frame hiding intent.","latency_ms":3483.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is holding a black bag and repeatedly brings his hand to the front of his torso (e.g., frame 1 and 2), consistent with placing an item inside the bag or under his shirt. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, but more importantly, the multi-frame behavior—specifically the repeated hand-to-bag/torso motion while walking through the aisle—indicates concealment intent rather than normal shopping. No items are seen placed in a cart or basket; instead, the bag is carried openly but used for hiding. This matches the definition of 'conceal_unpaid': putting a product into a bag/pocket/under clothes, inferred from overall multi-frame behavior.","latency_ms":3735.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their backpack while walking through the aisle, which indicates an intent to conceal unpaid merchandise. This behavior aligns with shoplifting intent.","latency_ms":2044.7}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"zenodo_theft__main303_Trim1__C_1__conceal__0","clip_id":"zenodo_theft__main303_Trim1","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen walking through the aisle while adjusting a backpack, which aligns with the L1 event 'conceal' indicating potential concealment of unpaid merchandise. The behavior suggests an intent to hide items on their person.","latency_ms":2615.3,"agreement_hint":"keep_ok","center_ts":1.5666666666666667,"corpus":"zenodo","media_url":null,"playable":false,"keyframe_urls":["/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__conceal__0&file=kf_00_0.43s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__conceal__0&file=kf_01_1.20s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__conceal__0&file=kf_02_1.93s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__conceal__0&file=kf_03_2.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The sequence of frames shows the person holding a black backpack open in front of their torso while manipulating an item near the bag's opening, consistent with concealing merchandise. The L1 event subtype 'under_clothes' and model score support this, and the multi-frame behavior indicates hiding intent rather than normal browsing.","latency_ms":1689.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the individual adjusts a large black bag while in the snack aisle, with L1 event data indicating concealment under clothes (consistent with hiding unpaid merchandise). The multi-frame behavior shows intentional manipulation of the bag to hide items, matching the conceal_unpaid label criteria.","latency_ms":3569.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) is supported by visual evidence: the person repeatedly reaches toward the right side of their body while holding a large black bag, then later walks forward with the bag held close to their torso—consistent with hiding an item under clothing or in the bag. The trajectory analysis shows co-disappear (1.0) and dwell ratio 1.0, indicating sustained focus on concealment behavior. No visible payment or return actions occur; no items are placed in cart or basket. This aligns with 'conceal_unpaid' per rules: multi-frame intent to hide unpaid merchandise, not just browsing.","latency_ms":3224.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen walking through the aisle while adjusting a backpack, which aligns with the L1 event 'conceal' indicating potential concealment of unpaid merchandise. The behavior suggests an intent to hide items on their person.","latency_ms":2615.3}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"zenodo_theft__main303_Trim1__C_1__qty_spike__1","clip_id":"zenodo_theft__main303_Trim1","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen placing an item into their backpack while walking through the aisle, which indicates an intent to conceal unpaid merchandise. This behavior aligns with the 'conceal_unpaid' label as it shows a clear action of hiding an item on their person.","latency_ms":8476.4,"agreement_hint":"keep_ok","center_ts":3.566666666666667,"corpus":"zenodo","media_url":null,"playable":false,"keyframe_urls":["/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__qty_spike__1&file=kf_00_2.43s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__qty_spike__1&file=kf_01_3.20s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__qty_spike__1&file=kf_02_3.93s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__qty_spike__1&file=kf_03_3.93s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.6,"agreement_hint":"uncertain","rationale":"The frames show a man walking down an aisle holding a black bag, but there is no visible merchandise being concealed into the bag, pockets, or clothing. The L1 qty_spike event is a soft hint only and lacks matching visual evidence of concealment.","latency_ms":1410.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual is seen placing a black bag under their shirt (concealing it against their torso) and then securing it over their shoulder, consistent with hiding an unpaid item on their person across sequential frames. The L1 qty_spike event supports the inference of taking items to conceal, matching the visual behavior of hiding a bag under clothing.","latency_ms":2930.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is walking down the aisle with a black bag slung over his shoulder, and in the first frame, he is seen adjusting or pressing his hand against the front of the bag near his chest—consistent with placing or securing an item inside. His posture and hand motion suggest concealment rather than casual carrying. The L1 event 'qty_spike' (with taken_proxy=2) supports multiple items being taken, and combined with the visual of him holding the bag close to his body while walking away from shelves, this indicates intent to hide unpaid merchandise. No items are seen being placed in a cart or returned to shelves; instead, the bag’s position and his actions align with concealment.","latency_ms":3344.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their backpack while walking through the aisle, which indicates an intent to conceal unpaid merchandise. This behavior aligns with the 'conceal_unpaid' label as it shows a clear action of hiding an item on their person.","latency_ms":8476.4}]}],"n_fp":2,"n_miss":32,"n_keep":35}},"fp_kept":[{"kind":"fp_kept","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"hf_normal__Normal__3___C_2__conceal__0","clip_id":"hf_normal__Normal (3)","weak_label":"negative","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"rationale":"The person picks up an orange item from the table and, across the sequence, moves it down toward his hip/pocket area where it disappears from view, matching the L1 conceal hint (pocket/hip). This multi-frame behavior indicates concealment rather than visible carrying or browsing.","latency_ms":1498.1,"agreement_hint":"fp_kept","center_ts":5.166666666666667,"corpus":"hf_tcc","media_url":"/api/media/dataset/hf_tcc_shoplifting__Shoplifting%20-%20MNNIT__Normal__Normal%20%283%29.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=hf_normal__Normal__3___C_2__conceal__0&file=kf_00_4.03s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__3___C_2__conceal__0&file=kf_01_4.80s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__3___C_2__conceal__0&file=kf_02_5.53s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__3___C_2__conceal__0&file=kf_03_6.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"fp_kept","rationale":"The person picks up an orange item from the table and, across the sequence, moves it down toward his hip/pocket area where it disappears from view, matching the L1 conceal hint (pocket/hip). This multi-frame behavior indicates concealment rather than visible carrying or browsing.","latency_ms":1498.1},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"fp_suppressed","rationale":"The customer picks up, examines, and then places the orange product back onto the table, which is normal shopping behavior consistent with browsing merchandise. No concealment of unpaid items into pockets, bags, or under clothes is observed across the multi-frame sequence.","latency_ms":2349.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' and zone 'hip', supported by trajectory evidence showing co-disappearance (item vanishes from view after being handled near the hip). The person is seen holding an orange item, then placing it down on the table—however, the motion and context (including the second person’s observation and the item's prior handling) suggest the item may have been concealed in the pocket before being set down, especially given the high model score (0.85) and dwell ratio of 1.0 indicating sustained focus on that area. Since the item was not placed in a cart or returned to shelf, and no payment is observed, concealment is inferred. This aligns with 'conceal_unpaid' as defined: hiding into pocket/clothes with multi-frame intent.","latency_ms":4332.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"fp_suppressed","rationale":"The individual is examining an orange object in his hands, placing it on a table, and appears to be engaged in normal browsing behavior. There is no visible concealment into a bag, pocket, or under clothing, and the actions are consistent with typical shopping activity.","latency_ms":2945.8}]},{"kind":"fp_kept","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"hf_normal__Normal__18___C_1__conceal__1","clip_id":"hf_normal__Normal (18)","weak_label":"negative","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Across sequential frames, the individual is observed moving an item from the table into their hip pocket, which matches the L1 conceal event subtype of pocket hiding, consistent with concealing an unpaid product.","latency_ms":4032.1,"agreement_hint":"fp_kept","center_ts":9.566666666666666,"corpus":"hf_tcc","media_url":"/api/media/dataset/hf_tcc_shoplifting__Shoplifting%20-%20MNNIT__Normal__Normal%20%2818%29.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=hf_normal__Normal__18___C_1__conceal__1&file=kf_00_8.43s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__18___C_1__conceal__1&file=kf_01_9.20s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__18___C_1__conceal__1&file=kf_02_9.93s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__18___C_1__conceal__1&file=kf_03_10.63s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.6,"agreement_hint":"fp_suppressed","rationale":"The keyframes show the person standing near a table with boxes and items, but no clear concealment into a bag, pocket, or clothing is visible. The L1 conceal event is a soft hint and lacks matching visual evidence in the provided frames.","latency_ms":1679.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"Across sequential frames, the individual is observed moving an item from the table into their hip pocket, which matches the L1 conceal event subtype of pocket hiding, consistent with concealing an unpaid product.","latency_ms":4032.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with the trajectory evidence showing co-disappearance (1.0) and high dwell ratio (0.8333), indicates the person likely concealed an item in their pocket. The person’s hand is consistently near the hip area across frames, and no visible payment or return action occurs — consistent with concealment rather than browsing or checkout. Although the risk_score is 0.0, the visual behavior and meta data strongly support conceal_unpaid.","latency_ms":2676.2},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"fp_kept","rationale":"The individual is shown with his hand inside his pocket, which aligns with the L1 event 'conceal' indicating potential concealment of an item. The posture and positioning suggest an intent to hide merchandise on his person.","latency_ms":2635.7}]},{"kind":"fp_kept","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"hf_normal__Normal__20___C_1__conceal__0","clip_id":"hf_normal__Normal (20)","weak_label":"negative","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Across sequential frames, the individual is seen moving their hand toward their hip pocket (matching the L1 event's pocket concealment subtype) near items on the table, showing multi-frame behavior of hiding an item in their pants pocket consistent with concealing unpaid merchandise.","latency_ms":3309.1,"agreement_hint":"fp_kept","center_ts":2.7666666666666666,"corpus":"hf_tcc","media_url":"/api/media/dataset/hf_tcc_shoplifting__Shoplifting%20-%20MNNIT__Normal__Normal%20%2820%29.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=hf_normal__Normal__20___C_1__conceal__0&file=kf_00_1.63s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__20___C_1__conceal__0&file=kf_01_2.40s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__20___C_1__conceal__0&file=kf_02_3.13s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__20___C_1__conceal__0&file=kf_03_3.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.6,"agreement_hint":"fp_suppressed","rationale":"The keyframes show the person standing and looking at items on a table, but no concealment into a pocket, bag, or clothing is visible. The L1 conceal event is a soft hint and lacks matching visual evidence in these frames.","latency_ms":1012.4},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"Across sequential frames, the individual is seen moving their hand toward their hip pocket (matching the L1 event's pocket concealment subtype) near items on the table, showing multi-frame behavior of hiding an item in their pants pocket consistent with concealing unpaid merchandise.","latency_ms":3309.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappearance (item vanishes from view after approach) and high model score (0.85), strongly indicates the person is concealing an item in their pocket or clothing. The person's posture—bending slightly, hands near the hip area—and lack of visible payment or return action support this. No visual of the item being placed in a bag or cart; instead, the behavior aligns with hiding merchandise on the body. This matches the definition of 'conceal_unpaid' as hiding product on the body across frames.","latency_ms":3570.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"fp_suppressed","rationale":"The individual is standing in an office environment, looking at items on a desk. There is no visible concealment of merchandise into pockets, bags, or under clothing. The behavior appears consistent with normal browsing or examination of items, and there is no evidence of shoplifting intent.","latency_ms":2138.8}]},{"kind":"fp_kept","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"hf_normal__Normal__22___C_1__conceal__1","clip_id":"hf_normal__Normal (22)","weak_label":"negative","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The person is observed moving an item toward their pants pocket (under clothes) across sequential frames, matching the L1 conceal event subtype of under_clothes, indicating hiding an unpaid item on their body.","latency_ms":3104.6,"agreement_hint":"fp_kept","center_ts":9.966666666666667,"corpus":"hf_tcc","media_url":"/api/media/dataset/hf_tcc_shoplifting__Shoplifting%20-%20MNNIT__Normal__Normal%20%2822%29.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=hf_normal__Normal__22___C_1__conceal__1&file=kf_00_8.83s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__22___C_1__conceal__1&file=kf_01_9.60s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__22___C_1__conceal__1&file=kf_02_10.33s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__22___C_1__conceal__1&file=kf_03_11.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.6,"agreement_hint":"fp_suppressed","rationale":"The frames show a person standing at a table with boxes and items, handling objects near the table surface. There is no visible concealment into a bag, pocket, or under clothes across the frames. The L1 conceal hint is not supported by clear visual evidence, so the behavior cannot be confirmed as shoplifting or concealment.","latency_ms":1757.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The person is observed moving an item toward their pants pocket (under clothes) across sequential frames, matching the L1 conceal event subtype of under_clothes, indicating hiding an unpaid item on their body.","latency_ms":3104.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with the trajectory evidence (co_disappear = 1.0, dwell_ratio = 0.833) indicates the person is hiding an item under their clothes. The person’s posture—bending over a table, reaching toward the wall/box area, and then pulling back while appearing to adjust clothing or pocket—supports concealment behavior. No payment or visible checkout action occurs; no items are placed in a cart or returned to shelves. This matches 'conceal_unpaid' as defined: hiding merchandise on the body across multiple frames, not just a single grab.","latency_ms":3566.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"fp_kept","rationale":"The individual is seen placing an item into his pocket, which constitutes concealment of unpaid merchandise. This action aligns with the 'conceal_unpaid' label as it shows intent to hide the item on his person.","latency_ms":2075.4}]},{"kind":"fp_kept","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"normal__demo_normal_04__C_1__conceal__0","clip_id":"normal__demo_normal_04","weak_label":"negative","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event indicates a conceal event in the hip pocket zone, paired with multi-frame visual context showing the individual adjusting their hoodie near the hip area, consistent with hiding an unpaid item in clothing, matching the conceal_unpaid label criteria.","latency_ms":2453.8,"agreement_hint":"fp_kept","center_ts":4.76,"corpus":"demo","media_url":"/api/media/sample/demo_normal_04.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=normal__demo_normal_04__C_1__conceal__0&file=kf_00_3.64s.jpg","/api/path1_case_keyframe?case_id=normal__demo_normal_04__C_1__conceal__0&file=kf_01_4.40s.jpg","/api/path1_case_keyframe?case_id=normal__demo_normal_04__C_1__conceal__0&file=kf_02_5.12s.jpg","/api/path1_case_keyframe?case_id=normal__demo_normal_04__C_1__conceal__0&file=kf_03_5.88s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.8,"agreement_hint":"fp_suppressed","rationale":"The keyframes show the person walking through the store and holding a small item in his hand while interacting with another person. There is no visual evidence of him concealing merchandise into a pocket, bag, or under clothing. The L1 conceal event is not supported by the visuals, which show the item remaining visible in his hand.","latency_ms":1525.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The L1 event indicates a conceal event in the hip pocket zone, paired with multi-frame visual context showing the individual adjusting their hoodie near the hip area, consistent with hiding an unpaid item in clothing, matching the conceal_unpaid label criteria.","latency_ms":2453.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with high trajectory score (0.65) and co-disappear evidence (1.0), indicates the person likely concealed an item in their pocket. The person’s posture and movement—walking past the counter, turning, and interacting with another individual—suggests they are hiding something rather than simply browsing or paying. No visible payment or checkout action occurs, and no items are placed in a cart or basket. The risk score is low but the visual behavior aligns with concealment intent.","latency_ms":3224.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"fp_suppressed","rationale":"The individual is seen walking through the store, holding an item in his hand without any indication of concealment into a bag, pocket, or under clothing. There is no evidence of hiding behavior across the frames, and the actions appear consistent with normal shopping behavior such as examining or carrying an item.","latency_ms":2353.6}]},{"kind":"fp_kept","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"normal__demo_normal_04__C_2__conceal__1","clip_id":"normal__demo_normal_04","weak_label":"negative","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual (P#2) is observed moving an item toward their hip pocket (per L1 event subtype: pocket, zone: hip) across consecutive frames, with visual evidence of the item being positioned to be hidden in clothing, matching concealment of unpaid merchandise.","latency_ms":3420.1,"agreement_hint":"fp_kept","center_ts":7.64,"corpus":"demo","media_url":"/api/media/sample/demo_normal_04.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=normal__demo_normal_04__C_2__conceal__1&file=kf_00_6.52s.jpg","/api/path1_case_keyframe?case_id=normal__demo_normal_04__C_2__conceal__1&file=kf_01_7.28s.jpg","/api/path1_case_keyframe?case_id=normal__demo_normal_04__C_2__conceal__1&file=kf_02_8.00s.jpg","/api/path1_case_keyframe?case_id=normal__demo_normal_04__C_2__conceal__1&file=kf_03_8.76s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"fp_suppressed","rationale":"The frames show two individuals interacting in a shop area with visible merchandise on tables and shelves. No concealment into pockets, bags, or clothing is visible. The L1 conceal event is not supported by clear visual evidence of hiding merchandise.","latency_ms":1069.1},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The individual (P#2) is observed moving an item toward their hip pocket (per L1 event subtype: pocket, zone: hip) across consecutive frames, with visual evidence of the item being positioned to be hidden in clothing, matching concealment of unpaid merchandise.","latency_ms":3420.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"fp_suppressed","rationale":"The person is standing near the counter and table with products, but no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothes). The L1 event 'conceal' is flagged but contradicted by the visual: the person’s hands are visible and not engaged in hiding actions; they appear to be interacting socially or browsing. No product is seen being taken or hidden across frames. Per rule 1, picking up or holding alone is not steal/conceal_unpaid unless clear concealment occurs — here, no such action is observed. The risk score is 0.0 and weak_label is 'negative', supporting normal behavior.","latency_ms":3521.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"fp_suppressed","rationale":"The individual is seen holding and gesturing with an object, consistent with normal shopping behavior such as examining or discussing a product. There is no visual evidence of concealment into a bag, pocket, or under clothing across the frames.","latency_ms":3089.5}]},{"kind":"fp_kept","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"zenodo_normal__main199_Trim1__C_2__conceal__0","clip_id":"zenodo_normal__main199_Trim1","weak_label":"negative","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event indicates a conceal event under clothes, with multi-frame visual context showing the individual adjusting their waist area (consistent with hiding an item under clothing) as they move through the aisle, matching the subtype of concealment under clothes.","latency_ms":2205.4,"agreement_hint":"fp_kept","center_ts":1.5666666666666667,"corpus":"zenodo","media_url":null,"playable":false,"keyframe_urls":["/api/path1_case_keyframe?case_id=zenodo_normal__main199_Trim1__C_2__conceal__0&file=kf_00_0.43s.jpg","/api/path1_case_keyframe?case_id=zenodo_normal__main199_Trim1__C_2__conceal__0&file=kf_01_1.20s.jpg","/api/path1_case_keyframe?case_id=zenodo_normal__main199_Trim1__C_2__conceal__0&file=kf_02_1.93s.jpg","/api/path1_case_keyframe?case_id=zenodo_normal__main199_Trim1__C_2__conceal__0&file=kf_03_2.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"fp_suppressed","rationale":"The keyframes show individuals walking and browsing in a store aisle; no visible concealment of unpaid merchandise into bags, pockets, or clothing is evident. The L1 conceal event is not supported by clear visual evidence in these frames.","latency_ms":1468.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The L1 event indicates a conceal event under clothes, with multi-frame visual context showing the individual adjusting their waist area (consistent with hiding an item under clothing) as they move through the aisle, matching the subtype of concealment under clothes.","latency_ms":2205.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) is supported by the trajectory evidence showing co-disappear (1.0) and dwell ratio 1.0, indicating the person likely hid an item under clothes. Although no explicit visual of the concealment is seen in these frames, the consistent multi-frame behavior (e.g., holding an item while walking away from shelves, then disappearing into a zone where concealment is inferred) aligns with the 'conceal_unpaid' label per rule 2: only label when visuals show concealment or clear multi-frame hiding intent. The risk_score is low but the meta evidence (trajectory, co_disappear, mode=hybrid) strongly supports concealment intent.","latency_ms":3948.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"fp_suppressed","rationale":"The individual is walking through the aisle, holding a small object in his hand, and appears to be examining products on the shelves. There is no visible concealment of merchandise into a bag, pocket, or under clothing. The behavior aligns with normal shopping activity.","latency_ms":2324.9}]},{"kind":"fp_kept","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"hf_normal__Normal__18___C_1__conceal__1","clip_id":"hf_normal__Normal (18)","weak_label":"negative","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with the trajectory evidence showing co-disappearance (1.0) and high dwell ratio (0.8333), indicates the person likely concealed an item in their pocket. The person’s hand is consistently near the hip area across frames, and no visible payment or return action occurs — consistent with concealment rather than browsing or checkout. Although the risk_score is 0.0, the visual behavior and meta data strongly support conceal_unpaid.","latency_ms":2676.2,"agreement_hint":"fp_kept","center_ts":9.566666666666666,"corpus":"hf_tcc","media_url":"/api/media/dataset/hf_tcc_shoplifting__Shoplifting%20-%20MNNIT__Normal__Normal%20%2818%29.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=hf_normal__Normal__18___C_1__conceal__1&file=kf_00_8.43s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__18___C_1__conceal__1&file=kf_01_9.20s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__18___C_1__conceal__1&file=kf_02_9.93s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__18___C_1__conceal__1&file=kf_03_10.63s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.6,"agreement_hint":"fp_suppressed","rationale":"The keyframes show the person standing near a table with boxes and items, but no clear concealment into a bag, pocket, or clothing is visible. The L1 conceal event is a soft hint and lacks matching visual evidence in the provided frames.","latency_ms":1679.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"Across sequential frames, the individual is observed moving an item from the table into their hip pocket, which matches the L1 conceal event subtype of pocket hiding, consistent with concealing an unpaid product.","latency_ms":4032.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with the trajectory evidence showing co-disappearance (1.0) and high dwell ratio (0.8333), indicates the person likely concealed an item in their pocket. The person’s hand is consistently near the hip area across frames, and no visible payment or return action occurs — consistent with concealment rather than browsing or checkout. Although the risk_score is 0.0, the visual behavior and meta data strongly support conceal_unpaid.","latency_ms":2676.2},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"fp_kept","rationale":"The individual is shown with his hand inside his pocket, which aligns with the L1 event 'conceal' indicating potential concealment of an item. The posture and positioning suggest an intent to hide merchandise on his person.","latency_ms":2635.7}]},{"kind":"fp_kept","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"hf_normal__Normal__20___C_1__conceal__0","clip_id":"hf_normal__Normal (20)","weak_label":"negative","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappearance (item vanishes from view after approach) and high model score (0.85), strongly indicates the person is concealing an item in their pocket or clothing. The person's posture—bending slightly, hands near the hip area—and lack of visible payment or return action support this. No visual of the item being placed in a bag or cart; instead, the behavior aligns with hiding merchandise on the body. This matches the definition of 'conceal_unpaid' as hiding product on the body across frames.","latency_ms":3570.7,"agreement_hint":"fp_kept","center_ts":2.7666666666666666,"corpus":"hf_tcc","media_url":"/api/media/dataset/hf_tcc_shoplifting__Shoplifting%20-%20MNNIT__Normal__Normal%20%2820%29.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=hf_normal__Normal__20___C_1__conceal__0&file=kf_00_1.63s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__20___C_1__conceal__0&file=kf_01_2.40s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__20___C_1__conceal__0&file=kf_02_3.13s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__20___C_1__conceal__0&file=kf_03_3.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.6,"agreement_hint":"fp_suppressed","rationale":"The keyframes show the person standing and looking at items on a table, but no concealment into a pocket, bag, or clothing is visible. The L1 conceal event is a soft hint and lacks matching visual evidence in these frames.","latency_ms":1012.4},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"Across sequential frames, the individual is seen moving their hand toward their hip pocket (matching the L1 event's pocket concealment subtype) near items on the table, showing multi-frame behavior of hiding an item in their pants pocket consistent with concealing unpaid merchandise.","latency_ms":3309.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappearance (item vanishes from view after approach) and high model score (0.85), strongly indicates the person is concealing an item in their pocket or clothing. The person's posture—bending slightly, hands near the hip area—and lack of visible payment or return action support this. No visual of the item being placed in a bag or cart; instead, the behavior aligns with hiding merchandise on the body. This matches the definition of 'conceal_unpaid' as hiding product on the body across frames.","latency_ms":3570.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"fp_suppressed","rationale":"The individual is standing in an office environment, looking at items on a desk. There is no visible concealment of merchandise into pockets, bags, or under clothing. The behavior appears consistent with normal browsing or examination of items, and there is no evidence of shoplifting intent.","latency_ms":2138.8}]},{"kind":"fp_kept","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"hf_normal__Normal__22___C_1__conceal__1","clip_id":"hf_normal__Normal (22)","weak_label":"negative","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with the trajectory evidence (co_disappear = 1.0, dwell_ratio = 0.833) indicates the person is hiding an item under their clothes. The person’s posture—bending over a table, reaching toward the wall/box area, and then pulling back while appearing to adjust clothing or pocket—supports concealment behavior. No payment or visible checkout action occurs; no items are placed in a cart or returned to shelves. This matches 'conceal_unpaid' as defined: hiding merchandise on the body across multiple frames, not just a single grab.","latency_ms":3566.1,"agreement_hint":"fp_kept","center_ts":9.966666666666667,"corpus":"hf_tcc","media_url":"/api/media/dataset/hf_tcc_shoplifting__Shoplifting%20-%20MNNIT__Normal__Normal%20%2822%29.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=hf_normal__Normal__22___C_1__conceal__1&file=kf_00_8.83s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__22___C_1__conceal__1&file=kf_01_9.60s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__22___C_1__conceal__1&file=kf_02_10.33s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__22___C_1__conceal__1&file=kf_03_11.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.6,"agreement_hint":"fp_suppressed","rationale":"The frames show a person standing at a table with boxes and items, handling objects near the table surface. There is no visible concealment into a bag, pocket, or under clothes across the frames. The L1 conceal hint is not supported by clear visual evidence, so the behavior cannot be confirmed as shoplifting or concealment.","latency_ms":1757.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The person is observed moving an item toward their pants pocket (under clothes) across sequential frames, matching the L1 conceal event subtype of under_clothes, indicating hiding an unpaid item on their body.","latency_ms":3104.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with the trajectory evidence (co_disappear = 1.0, dwell_ratio = 0.833) indicates the person is hiding an item under their clothes. The person’s posture—bending over a table, reaching toward the wall/box area, and then pulling back while appearing to adjust clothing or pocket—supports concealment behavior. No payment or visible checkout action occurs; no items are placed in a cart or returned to shelves. This matches 'conceal_unpaid' as defined: hiding merchandise on the body across multiple frames, not just a single grab.","latency_ms":3566.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"fp_kept","rationale":"The individual is seen placing an item into his pocket, which constitutes concealment of unpaid merchandise. This action aligns with the 'conceal_unpaid' label as it shows intent to hide the item on his person.","latency_ms":2075.4}]},{"kind":"fp_kept","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"hf_normal__Normal__3___C_2__conceal__0","clip_id":"hf_normal__Normal (3)","weak_label":"negative","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' and zone 'hip', supported by trajectory evidence showing co-disappearance (item vanishes from view after being handled near the hip). The person is seen holding an orange item, then placing it down on the table—however, the motion and context (including the second person’s observation and the item's prior handling) suggest the item may have been concealed in the pocket before being set down, especially given the high model score (0.85) and dwell ratio of 1.0 indicating sustained focus on that area. Since the item was not placed in a cart or returned to shelf, and no payment is observed, concealment is inferred. This aligns with 'conceal_unpaid' as defined: hiding into pocket/clothes with multi-frame intent.","latency_ms":4332.0,"agreement_hint":"fp_kept","center_ts":5.166666666666667,"corpus":"hf_tcc","media_url":"/api/media/dataset/hf_tcc_shoplifting__Shoplifting%20-%20MNNIT__Normal__Normal%20%283%29.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=hf_normal__Normal__3___C_2__conceal__0&file=kf_00_4.03s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__3___C_2__conceal__0&file=kf_01_4.80s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__3___C_2__conceal__0&file=kf_02_5.53s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__3___C_2__conceal__0&file=kf_03_6.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"fp_kept","rationale":"The person picks up an orange item from the table and, across the sequence, moves it down toward his hip/pocket area where it disappears from view, matching the L1 conceal hint (pocket/hip). This multi-frame behavior indicates concealment rather than visible carrying or browsing.","latency_ms":1498.1},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"fp_suppressed","rationale":"The customer picks up, examines, and then places the orange product back onto the table, which is normal shopping behavior consistent with browsing merchandise. No concealment of unpaid items into pockets, bags, or under clothes is observed across the multi-frame sequence.","latency_ms":2349.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' and zone 'hip', supported by trajectory evidence showing co-disappearance (item vanishes from view after being handled near the hip). The person is seen holding an orange item, then placing it down on the table—however, the motion and context (including the second person’s observation and the item's prior handling) suggest the item may have been concealed in the pocket before being set down, especially given the high model score (0.85) and dwell ratio of 1.0 indicating sustained focus on that area. Since the item was not placed in a cart or returned to shelf, and no payment is observed, concealment is inferred. This aligns with 'conceal_unpaid' as defined: hiding into pocket/clothes with multi-frame intent.","latency_ms":4332.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"fp_suppressed","rationale":"The individual is examining an orange object in his hands, placing it on a table, and appears to be engaged in normal browsing behavior. There is no visible concealment into a bag, pocket, or under clothing, and the actions are consistent with typical shopping activity.","latency_ms":2945.8}]},{"kind":"fp_kept","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"hf_normal__Normal__59___C_1__conceal__0","clip_id":"hf_normal__Normal (59)","weak_label":"negative","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high trajectory score (0.6933) + co_disappear = 1.0 strongly suggests concealment intent. The person is leaning over a table with packages, and his hand moves toward his waist/hip area while holding an item—consistent with hiding it under clothing. No payment or visible checkout action occurs; no clear return to shelf or cart. The risk_score is low but the visual behavior aligns with multi-frame concealment under clothes, matching the 'conceal_unpaid' label per rule 2.","latency_ms":3700.1,"agreement_hint":"fp_kept","center_ts":7.166666666666667,"corpus":"hf_tcc","media_url":"/api/media/dataset/hf_tcc_shoplifting__Shoplifting%20-%20MNNIT__Normal__Normal%20%2859%29.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=hf_normal__Normal__59___C_1__conceal__0&file=kf_00_6.03s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__59___C_1__conceal__0&file=kf_01_6.80s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__59___C_1__conceal__0&file=kf_02_7.53s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__59___C_1__conceal__0&file=kf_03_8.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"fp_suppressed","rationale":"The frames show a person standing at a table with boxes and items, looking down and handling objects. There is no visible concealment into a bag, pocket, or under clothes. The L1 conceal event is not supported by clear visual evidence of hiding merchandise.","latency_ms":1426.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"fp_suppressed","rationale":"The individual is interacting with items on a table, picking up and examining products in a normal shopping/inspecting manner, with no visible concealment of unpaid items into bags, pockets, or under clothes across the multi-frame sequence.","latency_ms":3034.7},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high trajectory score (0.6933) + co_disappear = 1.0 strongly suggests concealment intent. The person is leaning over a table with packages, and his hand moves toward his waist/hip area while holding an item—consistent with hiding it under clothing. No payment or visible checkout action occurs; no clear return to shelf or cart. The risk_score is low but the visual behavior aligns with multi-frame concealment under clothes, matching the 'conceal_unpaid' label per rule 2.","latency_ms":3700.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"fp_suppressed","rationale":"The individual is in an office-like environment, not a retail setting. He appears to be handling items on a desk, possibly preparing for shipping or organizing packages. There is no evidence of concealment, shoplifting intent, or browsing unpaid merchandise. The context suggests normal checkout or administrative activity.","latency_ms":2507.3}]},{"kind":"fp_kept","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"normal__demo_normal_03__C_1__conceal__0","clip_id":"normal__demo_normal_03","weak_label":"negative","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with the trajectory evidence (co_disappear = 1.0, dwell_ratio = 1.0), indicates the person likely concealed an item in their pocket or clothing. In the first frame, the person is holding both hands near the chest/upper torso area, consistent with placing or hiding an object. The subsequent frames show them walking away while still holding a phone, but no visible item is seen being placed in a cart or basket — suggesting concealment rather than normal browsing. The high model score (0.85) and trajectory score (0.65) support this inference. No payment or checkout action is observed.","latency_ms":3339.6,"agreement_hint":"fp_kept","center_ts":6.2,"corpus":"demo","media_url":"/api/media/sample/demo_normal_03.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=normal__demo_normal_03__C_1__conceal__0&file=kf_00_5.08s.jpg","/api/path1_case_keyframe?case_id=normal__demo_normal_03__C_1__conceal__0&file=kf_01_5.84s.jpg","/api/path1_case_keyframe?case_id=normal__demo_normal_03__C_1__conceal__0&file=kf_02_6.56s.jpg","/api/path1_case_keyframe?case_id=normal__demo_normal_03__C_1__conceal__0&file=kf_03_7.32s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"fp_suppressed","rationale":"The person is holding and looking at a phone, not concealing merchandise. No unpaid items are being hidden in pockets, bags, or clothing. The L1 conceal event is not supported by visual evidence.","latency_ms":1326.4},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"fp_suppressed","rationale":"The individual is holding a small dark object (consistent with a mobile phone, not an unpaid merchandise item) and examining it, with no action of concealing an unpaid product into a bag, pocket, or under clothing observed across the frames. The L1 'conceal' event is not supported by visual evidence of hiding merchandise.","latency_ms":3130.7},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with the trajectory evidence (co_disappear = 1.0, dwell_ratio = 1.0), indicates the person likely concealed an item in their pocket or clothing. In the first frame, the person is holding both hands near the chest/upper torso area, consistent with placing or hiding an object. The subsequent frames show them walking away while still holding a phone, but no visible item is seen being placed in a cart or basket — suggesting concealment rather than normal browsing. The high model score (0.85) and trajectory score (0.65) support this inference. No payment or checkout action is observed.","latency_ms":3339.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"fp_suppressed","rationale":"The person is seen holding a small object and making hand gestures, but there is no clear evidence of concealing merchandise into a bag, pocket, or under clothing. The behavior appears consistent with normal shopping activity, such as examining or handling an item.","latency_ms":2435.1}]},{"kind":"fp_kept","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"normal__demo_normal_04__C_1__conceal__0","clip_id":"normal__demo_normal_04","weak_label":"negative","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with high trajectory score (0.65) and co-disappear evidence (1.0), indicates the person likely concealed an item in their pocket. The person’s posture and movement—walking past the counter, turning, and interacting with another individual—suggests they are hiding something rather than simply browsing or paying. No visible payment or checkout action occurs, and no items are placed in a cart or basket. The risk score is low but the visual behavior aligns with concealment intent.","latency_ms":3224.1,"agreement_hint":"fp_kept","center_ts":4.76,"corpus":"demo","media_url":"/api/media/sample/demo_normal_04.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=normal__demo_normal_04__C_1__conceal__0&file=kf_00_3.64s.jpg","/api/path1_case_keyframe?case_id=normal__demo_normal_04__C_1__conceal__0&file=kf_01_4.40s.jpg","/api/path1_case_keyframe?case_id=normal__demo_normal_04__C_1__conceal__0&file=kf_02_5.12s.jpg","/api/path1_case_keyframe?case_id=normal__demo_normal_04__C_1__conceal__0&file=kf_03_5.88s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.8,"agreement_hint":"fp_suppressed","rationale":"The keyframes show the person walking through the store and holding a small item in his hand while interacting with another person. There is no visual evidence of him concealing merchandise into a pocket, bag, or under clothing. The L1 conceal event is not supported by the visuals, which show the item remaining visible in his hand.","latency_ms":1525.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The L1 event indicates a conceal event in the hip pocket zone, paired with multi-frame visual context showing the individual adjusting their hoodie near the hip area, consistent with hiding an unpaid item in clothing, matching the conceal_unpaid label criteria.","latency_ms":2453.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with high trajectory score (0.65) and co-disappear evidence (1.0), indicates the person likely concealed an item in their pocket. The person’s posture and movement—walking past the counter, turning, and interacting with another individual—suggests they are hiding something rather than simply browsing or paying. No visible payment or checkout action occurs, and no items are placed in a cart or basket. The risk score is low but the visual behavior aligns with concealment intent.","latency_ms":3224.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"fp_suppressed","rationale":"The individual is seen walking through the store, holding an item in his hand without any indication of concealment into a bag, pocket, or under clothing. There is no evidence of hiding behavior across the frames, and the actions appear consistent with normal shopping behavior such as examining or carrying an item.","latency_ms":2353.6}]},{"kind":"fp_kept","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"zenodo_normal__main170_Trim2__C_2__conceal__0","clip_id":"zenodo_normal__main170_Trim2","weak_label":"negative","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high trajectory score (0.6632) + co_disappear (1.0) indicates the person likely concealed an item under clothes. In the frames, the man in the striped shirt reaches into a shelf, then lowers his hand toward his waist while holding a basket—consistent with placing an item under clothing. The basket appears to contain only one visible item, but the multi-frame behavior (especially the downward motion and hand positioning near the waist) aligns with concealment intent. This is not just browsing since the action involves hiding rather than placing in cart or returning. The risk score is low but the visual evidence of co-disappearance and trajectory supports conceal_unpaid over uncertain.","latency_ms":3988.6,"agreement_hint":"fp_kept","center_ts":1.5666666666666667,"corpus":"zenodo","media_url":null,"playable":false,"keyframe_urls":["/api/path1_case_keyframe?case_id=zenodo_normal__main170_Trim2__C_2__conceal__0&file=kf_00_0.43s.jpg","/api/path1_case_keyframe?case_id=zenodo_normal__main170_Trim2__C_2__conceal__0&file=kf_01_1.20s.jpg","/api/path1_case_keyframe?case_id=zenodo_normal__main170_Trim2__C_2__conceal__0&file=kf_02_1.93s.jpg","/api/path1_case_keyframe?case_id=zenodo_normal__main170_Trim2__C_2__conceal__0&file=kf_03_2.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.8,"agreement_hint":"fp_suppressed","rationale":"The keyframes show the individual holding a shopping basket and reaching for items on the shelf, which is consistent with normal shopping behavior. There is no visible evidence of concealing merchandise into pockets, bags, or under clothes. The L1 conceal event is not supported by the visual frames.","latency_ms":993.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"fp_suppressed","rationale":"The individual in the striped shirt is holding a shopping basket, picking up products from the shelf, and placing them into the basket, which is normal shopping behavior consistent with browsing and adding items to a cart, not concealing unpaid merchandise. The L1 'conceal' event is not supported by visual evidence of hiding items under clothes or elsewhere outside the basket.","latency_ms":2494.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high trajectory score (0.6632) + co_disappear (1.0) indicates the person likely concealed an item under clothes. In the frames, the man in the striped shirt reaches into a shelf, then lowers his hand toward his waist while holding a basket—consistent with placing an item under clothing. The basket appears to contain only one visible item, but the multi-frame behavior (especially the downward motion and hand positioning near the waist) aligns with concealment intent. This is not just browsing since the action involves hiding rather than placing in cart or returning. The risk score is low but the visual evidence of co-disappearance and trajectory supports conceal_unpaid over uncertain.","latency_ms":3988.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"fp_suppressed","rationale":"The individual is holding a shopping basket and examining products on the shelves, consistent with normal shopping behavior. There is no visible concealment of merchandise into bags, pockets, or under clothing across the frames.","latency_ms":1898.2}]},{"kind":"fp_kept","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"zenodo_normal__main199_Trim1__C_2__conceal__0","clip_id":"zenodo_normal__main199_Trim1","weak_label":"negative","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) is supported by the trajectory evidence showing co-disappear (1.0) and dwell ratio 1.0, indicating the person likely hid an item under clothes. Although no explicit visual of the concealment is seen in these frames, the consistent multi-frame behavior (e.g., holding an item while walking away from shelves, then disappearing into a zone where concealment is inferred) aligns with the 'conceal_unpaid' label per rule 2: only label when visuals show concealment or clear multi-frame hiding intent. The risk_score is low but the meta evidence (trajectory, co_disappear, mode=hybrid) strongly supports concealment intent.","latency_ms":3948.5,"agreement_hint":"fp_kept","center_ts":1.5666666666666667,"corpus":"zenodo","media_url":null,"playable":false,"keyframe_urls":["/api/path1_case_keyframe?case_id=zenodo_normal__main199_Trim1__C_2__conceal__0&file=kf_00_0.43s.jpg","/api/path1_case_keyframe?case_id=zenodo_normal__main199_Trim1__C_2__conceal__0&file=kf_01_1.20s.jpg","/api/path1_case_keyframe?case_id=zenodo_normal__main199_Trim1__C_2__conceal__0&file=kf_02_1.93s.jpg","/api/path1_case_keyframe?case_id=zenodo_normal__main199_Trim1__C_2__conceal__0&file=kf_03_2.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"fp_suppressed","rationale":"The keyframes show individuals walking and browsing in a store aisle; no visible concealment of unpaid merchandise into bags, pockets, or clothing is evident. The L1 conceal event is not supported by clear visual evidence in these frames.","latency_ms":1468.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The L1 event indicates a conceal event under clothes, with multi-frame visual context showing the individual adjusting their waist area (consistent with hiding an item under clothing) as they move through the aisle, matching the subtype of concealment under clothes.","latency_ms":2205.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) is supported by the trajectory evidence showing co-disappear (1.0) and dwell ratio 1.0, indicating the person likely hid an item under clothes. Although no explicit visual of the concealment is seen in these frames, the consistent multi-frame behavior (e.g., holding an item while walking away from shelves, then disappearing into a zone where concealment is inferred) aligns with the 'conceal_unpaid' label per rule 2: only label when visuals show concealment or clear multi-frame hiding intent. The risk_score is low but the meta evidence (trajectory, co_disappear, mode=hybrid) strongly supports concealment intent.","latency_ms":3948.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"fp_suppressed","rationale":"The individual is walking through the aisle, holding a small object in his hand, and appears to be examining products on the shelves. There is no visible concealment of merchandise into a bag, pocket, or under clothing. The behavior aligns with normal shopping activity.","latency_ms":2324.9}]},{"kind":"fp_kept","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"hf_normal__Normal__18___C_1__conceal__1","clip_id":"hf_normal__Normal (18)","weak_label":"negative","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is shown with his hand inside his pocket, which aligns with the L1 event 'conceal' indicating potential concealment of an item. The posture and positioning suggest an intent to hide merchandise on his person.","latency_ms":2635.7,"agreement_hint":"fp_kept","center_ts":9.566666666666666,"corpus":"hf_tcc","media_url":"/api/media/dataset/hf_tcc_shoplifting__Shoplifting%20-%20MNNIT__Normal__Normal%20%2818%29.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=hf_normal__Normal__18___C_1__conceal__1&file=kf_00_8.43s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__18___C_1__conceal__1&file=kf_01_9.20s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__18___C_1__conceal__1&file=kf_02_9.93s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__18___C_1__conceal__1&file=kf_03_10.63s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.6,"agreement_hint":"fp_suppressed","rationale":"The keyframes show the person standing near a table with boxes and items, but no clear concealment into a bag, pocket, or clothing is visible. The L1 conceal event is a soft hint and lacks matching visual evidence in the provided frames.","latency_ms":1679.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"Across sequential frames, the individual is observed moving an item from the table into their hip pocket, which matches the L1 conceal event subtype of pocket hiding, consistent with concealing an unpaid product.","latency_ms":4032.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with the trajectory evidence showing co-disappearance (1.0) and high dwell ratio (0.8333), indicates the person likely concealed an item in their pocket. The person’s hand is consistently near the hip area across frames, and no visible payment or return action occurs — consistent with concealment rather than browsing or checkout. Although the risk_score is 0.0, the visual behavior and meta data strongly support conceal_unpaid.","latency_ms":2676.2},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"fp_kept","rationale":"The individual is shown with his hand inside his pocket, which aligns with the L1 event 'conceal' indicating potential concealment of an item. The posture and positioning suggest an intent to hide merchandise on his person.","latency_ms":2635.7}]},{"kind":"fp_kept","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"hf_normal__Normal__22___C_1__conceal__1","clip_id":"hf_normal__Normal (22)","weak_label":"negative","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen placing an item into his pocket, which constitutes concealment of unpaid merchandise. This action aligns with the 'conceal_unpaid' label as it shows intent to hide the item on his person.","latency_ms":2075.4,"agreement_hint":"fp_kept","center_ts":9.966666666666667,"corpus":"hf_tcc","media_url":"/api/media/dataset/hf_tcc_shoplifting__Shoplifting%20-%20MNNIT__Normal__Normal%20%2822%29.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=hf_normal__Normal__22___C_1__conceal__1&file=kf_00_8.83s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__22___C_1__conceal__1&file=kf_01_9.60s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__22___C_1__conceal__1&file=kf_02_10.33s.jpg","/api/path1_case_keyframe?case_id=hf_normal__Normal__22___C_1__conceal__1&file=kf_03_11.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.6,"agreement_hint":"fp_suppressed","rationale":"The frames show a person standing at a table with boxes and items, handling objects near the table surface. There is no visible concealment into a bag, pocket, or under clothes across the frames. The L1 conceal hint is not supported by clear visual evidence, so the behavior cannot be confirmed as shoplifting or concealment.","latency_ms":1757.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The person is observed moving an item toward their pants pocket (under clothes) across sequential frames, matching the L1 conceal event subtype of under_clothes, indicating hiding an unpaid item on their body.","latency_ms":3104.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"fp_kept","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with the trajectory evidence (co_disappear = 1.0, dwell_ratio = 0.833) indicates the person is hiding an item under their clothes. The person’s posture—bending over a table, reaching toward the wall/box area, and then pulling back while appearing to adjust clothing or pocket—supports concealment behavior. No payment or visible checkout action occurs; no items are placed in a cart or returned to shelves. This matches 'conceal_unpaid' as defined: hiding merchandise on the body across multiple frames, not just a single grab.","latency_ms":3566.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"fp_kept","rationale":"The individual is seen placing an item into his pocket, which constitutes concealment of unpaid merchandise. This action aligns with the 'conceal_unpaid' label as it shows intent to hide the item on his person.","latency_ms":2075.4}]}],"miss_pos":[{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting030_x264__C_11__1","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"rationale":"The keyframes show multiple people in a retail environment, with some individuals holding or examining items near shelves and counters. There is no clear visual evidence of concealing unpaid merchandise into bags, pockets, or clothing across the frames. The L1 event is a soft qty_spike hint without matching visual concealment evidence, so the behavior appears to be normal shopping or browsing.","latency_ms":1452.5,"agreement_hint":"miss_pos","center_ts":203.16666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__1&file=kf_00_202.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__1&file=kf_01_202.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__1&file=kf_02_203.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__1&file=kf_03_204.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show multiple people in a retail environment, with some individuals holding or examining items near shelves and counters. There is no clear visual evidence of concealing unpaid merchandise into bags, pockets, or clothing across the frames. The L1 event is a soft qty_spike hint without matching visual concealment evidence, so the behavior appears to be normal shopping or browsing.","latency_ms":1452.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the sleeveless patterned top moves an item from the shelf into their brown bag across sequential frames, hiding the product in the bag rather than placing it visibly for checkout or return, matching the definition of concealing unpaid merchandise.","latency_ms":3074.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer in the blue shirt (C#11) is seen reaching toward a shelf, then quickly moving with a sudden motion while holding an item close to their body. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, and the person’s posture—bending slightly, keeping arms close, and moving away from the display without placing the item in a visible cart or basket—indicates concealment intent. No clear checkout or return action is observed, and the behavior deviates from normal browsing. The presence of other customers nearby does not negate the suspicious multi-frame pattern of hiding merchandise.","latency_ms":3507.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"steal","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person in the orange shirt is seen concealing an item under their arm while standing near the checkout counter, indicating clear intent to shoplift. This behavior aligns with the 'steal' label as it shows concealment of unpaid merchandise.","latency_ms":2066.3}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting030_x264__C_11__qty_spike__4","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"rationale":"The keyframes show multiple shoppers in a store, with individuals holding bags and items, but no clear visual evidence of concealing unpaid merchandise into pockets, bags, or clothing. The L1 qty_spike event is a soft hint and not sufficient without matching visual concealment.","latency_ms":1301.1,"agreement_hint":"miss_pos","center_ts":203.16666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__qty_spike__4&file=kf_00_202.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__qty_spike__4&file=kf_01_202.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__qty_spike__4&file=kf_02_203.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__qty_spike__4&file=kf_03_204.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show multiple shoppers in a store, with individuals holding bags and items, but no clear visual evidence of concealing unpaid merchandise into pockets, bags, or clothing. The L1 qty_spike event is a soft hint and not sufficient without matching visual concealment.","latency_ms":1301.1},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the sleeveless patterned top moves their arm from reaching toward merchandise on the shelf to tucking an item into their brown bag across multiple consecutive frames, demonstrating clear concealment of an unpaid product.","latency_ms":2149.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer in the blue shirt (C#11) is seen reaching into a display area and then quickly moving toward their body while holding an item. In the final frame, they appear to be tucking or hiding the item under their clothing or into a bag, consistent with concealment behavior. The L1 event 'qty_spike' and 'taken_proxy>=2' support multiple items being taken, and the multi-frame sequence shows intent to hide rather than return or place in cart. No visible payment occurs, and the action is inconsistent with normal browsing.","latency_ms":2923.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"steal","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the blue shirt is seen placing an item into their waistband or pocket area, which is consistent with concealment behavior. This action, combined with the proximity to the checkout counter and the presence of other shoppers, strongly suggests an intent to shoplift.","latency_ms":2136.6}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting030_x264__C_1__0","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"rationale":"The keyframes show individuals standing and interacting near a display counter, with no visible concealment of merchandise into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding intent across frames.","latency_ms":1161.5,"agreement_hint":"miss_pos","center_ts":158.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__0&file=kf_00_157.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__0&file=kf_01_158.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__0&file=kf_02_158.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__0&file=kf_03_159.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show individuals standing and interacting near a display counter, with no visible concealment of merchandise into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding intent across frames.","latency_ms":1161.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the green plaid shirt adjusts their bag in a sequence of frames, with the bag appearing to shift position toward their torso in a way consistent with hiding an unpaid item, paired with the L1 qty_spike event indicating a potential product take.","latency_ms":3069.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (in the plaid shirt, center-right) is seen bending down and placing an item into a bag or pocket area near their waist/hip while others are distracted. The L1 event 'qty_spike' and 'handheld_peak>=2' suggest multiple items were handled quickly, and the body posture (bending, hiding motion) combined with the context of a retail store strongly indicates concealment of unpaid merchandise. This matches the definition of 'conceal_unpaid' — hiding on the body — not just browsing.","latency_ms":2728.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen holding an item in their hand and appears to be examining or considering it, consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or clothing, and the actions do not indicate shoplifting intent.","latency_ms":2089.1}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting030_x264__C_1__qty_spike__3","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"rationale":"The keyframes show multiple people in a retail environment, with some individuals holding or examining items near a display counter. There is no clear visual evidence of a person concealing unpaid merchandise into a bag, pocket, or clothing across the frames. The L1 event is a soft qty_spike hint, but the visuals do not confirm concealment or shoplifting intent.","latency_ms":2239.6,"agreement_hint":"miss_pos","center_ts":158.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__qty_spike__3&file=kf_00_157.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__qty_spike__3&file=kf_01_158.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__qty_spike__3&file=kf_02_158.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__qty_spike__3&file=kf_03_159.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show multiple people in a retail environment, with some individuals holding or examining items near a display counter. There is no clear visual evidence of a person concealing unpaid merchandise into a bag, pocket, or clothing across the frames. The L1 event is a soft qty_spike hint, but the visuals do not confirm concealment or shoplifting intent.","latency_ms":2239.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the green plaid shirt adjusts their bag in a sequence of frames, with the bag positioned to conceal items, consistent with hiding unpaid merchandise. The L1 qty_spike event provides additional soft context supporting potential concealment, and the multi-frame behavior shows intent to hide items rather than normal browsing.","latency_ms":2861.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (in blue shirt) is seen bending down and reaching toward the floor near their feet while holding a large brown bag. In the context of the L1 event 'qty_spike' and 'handheld_peak>=2', combined with the posture suggesting an attempt to hide or retrieve an item, this behavior strongly indicates concealment of unpaid merchandise. The person’s hand movement near the bag and lower body suggests placing or retrieving an item into the bag without paying. No clear checkout or return action is observed.","latency_ms":2898.2},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen holding and examining a product in their hand, consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or under clothing, and the actions appear to be part of a typical browsing process.","latency_ms":3339.3}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting039_x264__C_2__0","clip_id":"ucf_theft__Shoplifting039_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"rationale":"The frames show a person standing near a display table and shelf, facing away from the camera. No concealment into bag, pocket, or clothing is visible. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1405.5,"agreement_hint":"miss_pos","center_ts":82.36666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting039_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__0&file=kf_00_81.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__0&file=kf_01_82.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__0&file=kf_02_82.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__0&file=kf_03_83.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a person standing near a display table and shelf, facing away from the camera. No concealment into bag, pocket, or clothing is visible. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1405.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the customer is seen moving items from a display counter and concealing them under their clothing (waistband/pants area) in a manner consistent with hiding unpaid merchandise, matching multi-frame behavior indicating concealment.","latency_ms":2527.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The person is standing near a display area, facing the shelves and looking toward the entrance, with hands on hips in a relaxed posture. No visual evidence of picking up, holding, or concealing any item is present across the frames. The behavior aligns with normal browsing — possibly waiting or observing — and no concealment action (e.g., into bag/pocket/clothes) is observed. L1 event 'qty_spike' alone is insufficient without visual confirmation of theft.","latency_ms":2279.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen picking up an item, examining it briefly, and placing it into a shopping basket. There is no evidence of concealment or hiding the item on their body. The behavior aligns with normal shopping activity.","latency_ms":1742.5}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting039_x264__C_2__qty_spike__1","clip_id":"ucf_theft__Shoplifting039_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"rationale":"The frames show a person standing near a display table and then walking toward the exit. No visual evidence of concealing merchandise into a bag, pocket, or clothing is visible. The L1 qty_spike event is a soft hint and not supported by clear concealment behavior in the provided keyframes.","latency_ms":1481.4,"agreement_hint":"miss_pos","center_ts":82.36666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting039_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__qty_spike__1&file=kf_00_81.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__qty_spike__1&file=kf_01_82.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__qty_spike__1&file=kf_02_82.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__qty_spike__1&file=kf_03_83.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a person standing near a display table and then walking toward the exit. No visual evidence of concealing merchandise into a bag, pocket, or clothing is visible. The L1 qty_spike event is a soft hint and not supported by clear concealment behavior in the provided keyframes.","latency_ms":1481.4},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the customer is seen moving items from a display area and concealing them under their clothing (torso/waist area) without any visible payment action, consistent with hiding unpaid merchandise. The L1 qty_spike event aligns with the observed multi-frame behavior of handling and concealing products.","latency_ms":3204.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The person is standing near a display with hands on hips, facing the entrance/exit area, and appears to be browsing or waiting. No visual evidence of picking up, holding, or concealing any merchandise. The L1 event 'qty_spike' is likely a false positive (e.g., due to motion detection or proxy signal), but without actual visual confirmation of item handling or concealment, this behavior aligns with normal browsing. No concealment action is observed across frames.","latency_ms":3609.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is seen picking up an item, holding it briefly, and examining it while standing near the checkout counter. There is no visible concealment into a bag, pocket, or clothing, and the behavior aligns with normal shopping activity rather than shoplifting intent.","latency_ms":2523.8}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_10__1","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"rationale":"The keyframes show customers browsing and handling clothing on racks, with no visible concealment into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding unpaid merchandise.","latency_ms":1478.9,"agreement_hint":"miss_pos","center_ts":43.166666666666664,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__1&file=kf_00_42.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__1&file=kf_01_42.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__1&file=kf_02_43.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__1&file=kf_03_44.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show customers browsing and handling clothing on racks, with no visible concealment into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding unpaid merchandise.","latency_ms":1478.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer with dark hair in a white top is observed moving clothing from the rack and tucking it into the back of her jeans (under her clothing) across sequential frames, which constitutes hiding an unpaid product on her body.","latency_ms":2923.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing clothing racks, reaching for items, and appears to be examining or selecting garments in a normal shopping manner. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothes) or intent to steal. The L1 event 'qty_spike' with 'taken_proxy>=2' may reflect rapid item handling during selection, but without visible concealment, it remains consistent with browsing behavior.","latency_ms":2099.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is picking up and examining clothing items from the rack, which is consistent with normal shopping behavior. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames.","latency_ms":1515.5}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_10__qty_spike__4","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"rationale":"The keyframes show customers browsing and handling clothing on racks in a retail store. No clear concealment into bags, pockets, or clothing is visible across the frames. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding merchandise.","latency_ms":1186.9,"agreement_hint":"miss_pos","center_ts":43.166666666666664,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__qty_spike__4&file=kf_00_42.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__qty_spike__4&file=kf_01_42.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__qty_spike__4&file=kf_02_43.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__qty_spike__4&file=kf_03_44.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The keyframes show customers browsing and handling clothing on racks in a retail store. No clear concealment into bags, pockets, or clothing is visible across the frames. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding merchandise.","latency_ms":1186.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer in the white top and jeans is observed moving clothing from the rack and positioning items under her lifted top (waist area) across consecutive frames, which constitutes hiding unpaid merchandise on her body. The L1 qty_spike event aligns with the multi-frame behavior of taking items to conceal them, matching the visual evidence of hiding.","latency_ms":2776.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing clothes, reaching into a rack, picking up items, and examining them — typical shopping behavior. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothing) or hiding actions across frames. The L1 'qty_spike' event may reflect rapid item handling during browsing, not theft. No intent to steal is visible.","latency_ms":2088.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is seen picking up and examining clothing items from the rack, which is consistent with normal shopping behavior. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames.","latency_ms":2199.3}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_29__3","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"rationale":"The frames show customers browsing and handling clothing on racks. No clear concealment into bags, pockets, or clothing is visible across the sequence. The L1 qty_spike signal is a soft hint and lacks matching visual evidence of hiding merchandise.","latency_ms":1415.0,"agreement_hint":"miss_pos","center_ts":157.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__3&file=kf_00_156.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__3&file=kf_01_157.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__3&file=kf_02_157.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__3&file=kf_03_158.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks. No clear concealment into bags, pockets, or clothing is visible across the sequence. The L1 qty_spike signal is a soft hint and lacks matching visual evidence of hiding merchandise.","latency_ms":1415.0},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the white top and jeans is seen moving a clothing item from the rack and concealing it inside the back of their pants (under clothing) across sequential frames, which matches the definition of hiding unpaid merchandise. The L1 qty_spike event aligns with the observed action of taking an item to conceal, supporting the visual evidence.","latency_ms":3317.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customers are actively browsing clothing racks, picking up items, examining them, and placing them back or holding them while shopping—consistent with normal retail behavior. No visual evidence of concealment (e.g., putting items into bags/pockets/clothes without paying) is observed across the frames. The L1 event 'qty_spike' with 'handheld_peak>=2' may reflect brief handling but does not indicate theft without additional concealment cues.","latency_ms":2309.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are seen picking up, holding, and examining clothing items in a typical shopping manner. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames. The behavior aligns with normal browsing and product evaluation.","latency_ms":2214.3}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_29__qty_spike__8","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"rationale":"The frames show customers browsing and handling clothing on racks. No clear concealment into bags, pockets, or clothing is visible. The L1 qty_spike event is a soft hint and not supported by visual evidence of hiding merchandise.","latency_ms":1299.7,"agreement_hint":"miss_pos","center_ts":157.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__qty_spike__8&file=kf_00_156.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__qty_spike__8&file=kf_01_157.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__qty_spike__8&file=kf_02_157.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__qty_spike__8&file=kf_03_158.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks. No clear concealment into bags, pockets, or clothing is visible. The L1 qty_spike event is a soft hint and not supported by visual evidence of hiding merchandise.","latency_ms":1299.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"A woman in a white top and jeans is observed over multiple frames placing clothing items into her pants waistband, hiding them from view, which constitutes concealing unpaid merchandise. The L1 qty_spike event aligns with this multi-frame concealment behavior.","latency_ms":3892.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The person is actively browsing clothing racks, picking up and examining items, and holding them visibly while standing near the rack. There is no visual evidence of concealment into bags, pockets, or under clothes. The 'qty_spike' L1 event may reflect multiple items being handled quickly during normal browsing (e.g., checking several garments), but without any indication of hiding or attempting to leave without paying, this remains within normal shopping behavior.","latency_ms":2171.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are seen picking up, holding, and examining clothing items in a typical shopping manner. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames. The behavior aligns with normal browsing and product evaluation.","latency_ms":2258.6}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_48__5","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"rationale":"The frames show customers browsing and handling clothing on racks without any visible concealment into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1243.3,"agreement_hint":"miss_pos","center_ts":444.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__5&file=kf_00_443.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__5&file=kf_01_444.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__5&file=kf_02_444.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__5&file=kf_03_445.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks without any visible concealment into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1243.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The woman in the white top is seen holding a dark garment and moving it toward her body/back area across sequential frames, consistent with hiding an unpaid product, supported by the L1 qty_spike event indicating a potential take of multiple items.","latency_ms":2945.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.8,"agreement_hint":"keep_ok","rationale":"The customer (C#48) is seen browsing and then, in the final frames, appears to be placing an item into a bag or pocket while turning away from the rack—consistent with concealment behavior. The L1 event 'qty_spike' and 'taken_proxy>=2' support multiple items being handled, and the multi-frame sequence shows intent to hide merchandise without paying. No visible checkout or return action occurs.","latency_ms":2025.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen holding a garment close to their body and appears to be concealing it under their top or into their bag, consistent with shoplifting intent across multiple frames.","latency_ms":2868.3}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_48__qty_spike__12","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"rationale":"The keyframes show customers browsing and handling clothing on racks without any visible concealment into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding merchandise.","latency_ms":1783.8,"agreement_hint":"miss_pos","center_ts":444.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__qty_spike__12&file=kf_00_443.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__qty_spike__12&file=kf_01_444.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__qty_spike__12&file=kf_02_444.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__qty_spike__12&file=kf_03_445.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The keyframes show customers browsing and handling clothing on racks without any visible concealment into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding merchandise.","latency_ms":1783.8},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The woman in the white top is seen holding a dark bag and moving toward her torso/side, with multi-frame behavior showing she is concealing an item (consistent with hiding unpaid merchandise) rather than normal shopping actions like examining or placing items in a cart. The L1 qty_spike event aligns with this observed concealment behavior.","latency_ms":2825.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#48) is seen browsing and then, in the final frames, appears to be placing an item into a bag or pocket while turning away from the rack—consistent with concealment behavior. The L1 event 'qty_spike' with taken_proxy=2 and take_burst>=2/25s supports multiple items being handled quickly, and the visual sequence shows her moving toward the exit with a bag that may contain unpaid merchandise. No clear checkout or return action is observed.","latency_ms":2945.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person in the blue top is seen placing an item into her bag or under her clothing while browsing, which indicates an intent to conceal unpaid merchandise. This behavior aligns with shoplifting intent across multiple frames.","latency_ms":1846.4}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_4__0","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"rationale":"The frames show customers browsing and handling clothing on racks; no concealment into a bag, pocket, or clothing is visible. The L1 qty_spike is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1770.7,"agreement_hint":"miss_pos","center_ts":13.966666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__0&file=kf_00_12.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__0&file=kf_01_13.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__0&file=kf_02_14.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__0&file=kf_03_15.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks; no concealment into a bag, pocket, or clothing is visible. The L1 qty_spike is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1770.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer in the white top is observed moving an item toward their torso/under their clothing across sequential frames, consistent with hiding an unpaid product, matching the L1 event's handheld peak signal indicating multiple items handled with intent to conceal.","latency_ms":2844.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customers are actively browsing clothing racks, picking up items, examining them, and placing them back on the rack or holding them while shopping. There is no visual evidence of concealment (e.g., putting items into bags, pockets, or under clothes) or intent to steal. The L1 event 'qty_spike' with 'handheld_peak>=2' may reflect multiple items being held briefly for inspection, which is consistent with normal browsing behavior in a retail setting.","latency_ms":2491.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are seen browsing through clothing items on the racks, picking up and examining garments. There is no visible concealment of merchandise into bags, pockets, or under clothes. The behavior appears consistent with normal shopping activity.","latency_ms":1793.9}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_4__qty_spike__1","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"rationale":"The frames show customers browsing and handling clothing on racks; no concealment into bags, pockets, or clothing is visible. The L1 qty_spike is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":935.9,"agreement_hint":"miss_pos","center_ts":13.966666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__qty_spike__1&file=kf_00_12.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__qty_spike__1&file=kf_01_13.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__qty_spike__1&file=kf_02_14.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__qty_spike__1&file=kf_03_15.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks; no concealment into bags, pockets, or clothing is visible. The L1 qty_spike is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":935.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer in the white top is observed moving an item toward their torso/under their clothing across sequential frames, consistent with hiding an unpaid product, supported by the L1 qty_spike event indicating a quantity change associated with this activity.","latency_ms":2453.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customers are actively browsing clothing racks, picking up items, examining them, and placing them back or holding them while shopping—consistent with normal retail behavior. No visual evidence of concealment (e.g., putting items into bags/pockets/clothes) or intent to steal is observed across the frames. The L1 event 'qty_spike' is likely due to multiple items being handled in quick succession during normal browsing (e.g., trying on or comparing), not theft.","latency_ms":2496.2},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are seen examining and handling clothing items on the racks, consistent with normal shopping behavior. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames.","latency_ms":2091.4}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_5__2","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"rationale":"The frames show customers browsing and handling clothing on racks; no concealment into bags, pockets, or clothing is visible. The L1 qty_spike is a soft hint only and is not supported by clear visual evidence of hiding merchandise.","latency_ms":1211.6,"agreement_hint":"miss_pos","center_ts":149.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__2&file=kf_00_148.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__2&file=kf_01_149.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__2&file=kf_02_149.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__2&file=kf_03_150.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks; no concealment into bags, pockets, or clothing is visible. The L1 qty_spike is a soft hint only and is not supported by clear visual evidence of hiding merchandise.","latency_ms":1211.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is holding multiple clothing items while browsing the clothing rack, with no visible action of concealing items into a bag, pocket, or under clothes; the behavior is consistent with normal shopping activity of examining or carrying items while browsing.","latency_ms":2590.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing and handling clothing items on a rack, picking up, examining, and repositioning garments in a typical shopping manner. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothes) or intent to steal — the behavior aligns with normal shopping activity. The L1 event 'qty_spike' is likely due to rapid handling of multiple items while browsing, not theft.","latency_ms":3758.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is picking up and examining clothing items, holding them in their hands, and appears to be browsing through the merchandise. There is no visible concealment of items into bags, pockets, or under clothes, and the behavior aligns with normal shopping activity.","latency_ms":2268.7}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_5__qty_spike__7","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"rationale":"The keyframes show customers browsing and handling clothing on racks. No concealment into bags, pockets, or clothing is visible. The L1 qty_spike event is a soft hint and lacks matching visual evidence of theft.","latency_ms":1484.6,"agreement_hint":"miss_pos","center_ts":149.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__qty_spike__7&file=kf_00_148.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__qty_spike__7&file=kf_01_149.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__qty_spike__7&file=kf_02_149.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__qty_spike__7&file=kf_03_150.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The keyframes show customers browsing and handling clothing on racks. No concealment into bags, pockets, or clothing is visible. The L1 qty_spike event is a soft hint and lacks matching visual evidence of theft.","latency_ms":1484.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is holding multiple clothing items while standing at a clothing rack, engaging in normal shopping behavior of examining or selecting merchandise, with no visible concealment of unpaid items into bags, pockets, or under clothes.","latency_ms":3145.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing and handling clothing items on a rack, picking up, examining, and repositioning garments in a typical shopping manner. There is no visual evidence of concealment (e.g., putting items into bags, pockets, or under clothes) or intent to steal — the behavior aligns with normal shopping activity. The L1 event 'qty_spike' may reflect rapid handling but is not supported by visual concealment cues.","latency_ms":3533.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is picking up and examining clothing items, holding them against their body, and appears to be shopping normally. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames.","latency_ms":1591.0}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_71__6","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"rationale":"The person is seen browsing clothing racks and holding items near a bag, but there is no clear visual evidence of concealing unpaid merchandise into a bag, pocket, or clothing. The L1 qty_spike event is a soft hint and not sufficient for a concealment determination.","latency_ms":1461.0,"agreement_hint":"miss_pos","center_ts":665.9666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__6&file=kf_00_664.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__6&file=kf_01_665.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__6&file=kf_02_666.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__6&file=kf_03_667.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The person is seen browsing clothing racks and holding items near a bag, but there is no clear visual evidence of concealing unpaid merchandise into a bag, pocket, or clothing. The L1 qty_spike event is a soft hint and not sufficient for a concealment determination.","latency_ms":1461.0},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across the sequence of frames, the customer in the turquoise shirt is manipulating clothing from the rack while their personal bag is positioned at their side, with visual evidence of movement that suggests placing an item into the bag, consistent with hiding unpaid merchandise. The L1 qty_spike event aligns with this observed multi-frame behavior of concealing an item.","latency_ms":3151.3},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is browsing clothing racks, standing in front of a rack and appearing to examine items. There is no visual evidence of concealment (e.g., putting items into bag/pocket/clothes) or hiding behavior across frames. The L1 event 'qty_spike' with 'handheld_peak>=2' may indicate brief handling but is consistent with normal shopping (e.g., picking up multiple items to compare), not theft. No intent to steal is visible.","latency_ms":3486.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen browsing through clothing items on the rack, picking up and examining garments. There is no visible concealment of merchandise into a bag, pocket, or under clothes across the frames. The behavior aligns with normal shopping activity.","latency_ms":1982.4}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_71__qty_spike__15","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"rationale":"The frames show a shopper browsing clothing racks with a shoulder bag; no visible concealment into bag, pockets, or clothing is evident across the sequence. The L1 qty_spike is a soft hint only and lacks matching visual concealment evidence.","latency_ms":1122.2,"agreement_hint":"miss_pos","center_ts":665.9666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__qty_spike__15&file=kf_00_664.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__qty_spike__15&file=kf_01_665.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__qty_spike__15&file=kf_02_666.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__qty_spike__15&file=kf_03_667.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a shopper browsing clothing racks with a shoulder bag; no visible concealment into bag, pockets, or clothing is evident across the sequence. The L1 qty_spike is a soft hint only and lacks matching visual concealment evidence.","latency_ms":1122.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the customer uses their open hand to move clothing on the rack while their large shoulder bag is positioned at their side, with visual evidence of the hand moving toward the bag area consistent with hiding an unpaid item; the L1 qty_spike event provides supporting context for potential concealment, matching multi-frame behavior of hiding merchandise in a personal bag.","latency_ms":3954.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is browsing clothing racks, standing in front of merchandise, and appears to be examining items. There is no visual evidence of concealment (e.g., putting items into bag/pocket/clothes) or hiding behavior across the frames. The L1 event 'qty_spike' with 'handheld_peak>=2' may indicate brief handling but does not confirm theft without visible concealment. Since the person remains in the open, interacting with items normally (e.g., looking, possibly touching), this falls under normal shopping behavior.","latency_ms":3364.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is seen browsing through clothing items on the rack, picking up and examining garments. There is no visible concealment of merchandise into a bag, pocket, or under clothes. The behavior appears consistent with normal shopping activity.","latency_ms":1965.9}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_87__7","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"rationale":"The person is seen browsing and handling clothing on racks without any visible concealment into a bag, pocket, or clothing. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1384.0,"agreement_hint":"miss_pos","center_ts":810.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__7&file=kf_00_809.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__7&file=kf_01_810.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__7&file=kf_02_810.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__7&file=kf_03_811.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The person is seen browsing and handling clothing on racks without any visible concealment into a bag, pocket, or clothing. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1384.0},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across the sequence of frames, the customer is observed interacting with clothing items near the rack, moving toward her patterned bag, and positioning items in a manner consistent with hiding unpaid merchandise in her bag, which aligns with multi-frame behavior indicating concealment of products.","latency_ms":3572.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#87) is seen repeatedly interacting with clothing items in a manner suggesting concealment: she bends down near the floor, reaches into a lower rack area where items are less visible, and appears to manipulate items while partially obscured by her body and bag. Her posture and actions—especially the repeated bending and reaching into low areas without placing items in a visible cart or basket—align with typical shoplifting behavior of hiding merchandise on the person. The L1 event 'qty_spike' and 'taken_proxy>=2' support this, but the visual evidence of concealment (e.g., hiding items under clothes or in bag) is consistent across frames. No clear checkout or return to shelf is observed.","latency_ms":3232.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen picking up a red garment and placing it into her bag, which indicates an intent to conceal unpaid merchandise. This behavior aligns with the 'conceal_unpaid' label as she actively hides the item from view.","latency_ms":1893.5}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_87__qty_spike__17","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"rationale":"The person is seen browsing and handling clothing on racks without any visible concealment into a bag, pocket, or clothing. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1491.5,"agreement_hint":"miss_pos","center_ts":810.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__qty_spike__17&file=kf_00_809.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__qty_spike__17&file=kf_01_810.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__qty_spike__17&file=kf_02_810.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__qty_spike__17&file=kf_03_811.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The person is seen browsing and handling clothing on racks without any visible concealment into a bag, pocket, or clothing. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1491.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across the sequence of frames, the customer is observed taking a red garment from the clothing rack and moving it toward her large patterned bag, consistent with hiding an unpaid product in her bag. The L1 qty_spike event aligns with the multi-frame action of taking an item to conceal it, matching the visual evidence of hiding merchandise.","latency_ms":3449.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#87) is seen repeatedly interacting with merchandise in a way that suggests concealment: she bends down near the floor, reaches into a low clothing rack, and appears to retrieve items without placing them in a visible basket or cart. Her body posture and hand movements—particularly reaching under or behind racks while keeping her back partially turned—indicate an intent to hide items on her person (e.g., in her bag or clothing). The L1 event 'qty_spike' with 'taken_proxy>=2' and 'take_burst>=2/25s' supports rapid, repeated handling of items, consistent with shoplifting behavior rather than normal browsing. No payment or checkout is observed, and no items are visibly placed in a cart. This aligns with 'conceal_unpaid' as defined: hiding items on the body via multi-frame behavior.","latency_ms":5520.3},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen picking up a red garment and placing it into their bag, which indicates an intent to conceal unpaid merchandise. This behavior aligns with shoplifting intent across multiple frames.","latency_ms":1757.9}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_8__4","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.85,"rationale":"The person is seen holding and examining clothing items on hangers in a retail store, with no visible concealment into a bag, pocket, or clothing. The behavior is consistent with normal shopping and browsing.","latency_ms":1219.1,"agreement_hint":"miss_pos","center_ts":170.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__4&file=kf_00_169.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__4&file=kf_01_170.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__4&file=kf_02_170.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__4&file=kf_03_171.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.85,"agreement_hint":"miss_pos","rationale":"The person is seen holding and examining clothing items on hangers in a retail store, with no visible concealment into a bag, pocket, or clothing. The behavior is consistent with normal shopping and browsing.","latency_ms":1219.1},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is picking up, holding, and examining a red garment from a clothing rack, which is normal shopping behavior with no visible concealment of unpaid merchandise.","latency_ms":2701.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing and handling clothing items on a rack, selecting and examining them in a typical shopping manner. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothes) or intent to steal — the actions are consistent with normal shopping behavior (picking up, holding, inspecting, and likely returning or placing in cart, though cart not visible). L1 event 'qty_spike' alone is insufficient without visual confirmation of concealment; here, the person’s actions remain transparent and non-suspicious.","latency_ms":3321.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is examining a red garment by holding it up and looking at it, consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or under clothing, and the L1 event 'qty_spike' does not appear to be supported by clear visual evidence of intent to steal.","latency_ms":2522.4}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_8__qty_spike__9","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.85,"rationale":"The person is seen holding and examining clothing items on hangers in a retail setting, with no visible concealment into a bag, pocket, or clothing. The behavior is consistent with normal shopping and browsing.","latency_ms":1284.2,"agreement_hint":"miss_pos","center_ts":170.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__qty_spike__9&file=kf_00_169.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__qty_spike__9&file=kf_01_170.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__qty_spike__9&file=kf_02_170.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__qty_spike__9&file=kf_03_171.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.85,"agreement_hint":"miss_pos","rationale":"The person is seen holding and examining clothing items on hangers in a retail setting, with no visible concealment into a bag, pocket, or clothing. The behavior is consistent with normal shopping and browsing.","latency_ms":1284.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is only picking up, holding, and examining a red garment from a clothing rack across the provided frames, with no action of concealing the item into a bag, pocket, or under clothes. The L1 qty_spike event is a soft hint without matching concealment visual evidence, so normal shopping behavior is confirmed.","latency_ms":3124.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing and handling clothing items on a rack, selecting and examining them in a typical shopping manner. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothes) or intent to steal — the actions are consistent with normal retail browsing behavior. The L1 event 'qty_spike' may reflect multiple items being handled quickly but does not override the clear visual context of examination and selection without hiding.","latency_ms":2488.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is picking up and examining a red garment from the rack, which is consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or under clothing, and no multi-frame intent to hide the item is evident.","latency_ms":1820.4}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting041_x264__C_11__0","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"rationale":"The frames show customers browsing and moving through the store; no clear concealment into bag, pocket, or clothing is visible across the sequence.","latency_ms":1150.9,"agreement_hint":"miss_pos","center_ts":137.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__0&file=kf_00_136.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__0&file=kf_01_137.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__0&file=kf_02_137.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__0&file=kf_03_138.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and moving through the store; no clear concealment into bag, pocket, or clothing is visible across the sequence.","latency_ms":1150.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Multi-frame behavior shows the individual in the pink outfit moving items toward their body, with actions consistent with hiding unpaid merchandise, supported by the L1 qty_spike event indicating an unusual number of items were taken from the shelf area.","latency_ms":3187.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person in maroon (C#11) is seen moving toward the exit while holding an item close to their body, and then appears to duck or turn quickly near the doorway—consistent with concealing merchandise under clothing or into a bag. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, and the multi-frame behavior shows intent to hide rather than return or pay. No visible checkout or return occurs.","latency_ms":2428.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are at a checkout counter, with one person appearing to pay or complete a transaction while the other waits nearby. There is no visible concealment of merchandise into bags, pockets, or clothing, and their behavior aligns with typical checkout activity.","latency_ms":1699.8}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting041_x264__C_11__qty_spike__4","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"rationale":"The frames show customers browsing and moving through the store; no clear concealment into bag, pocket, or clothing is visible across the sequence. The L1 qty_spike is a soft hint only and lacks matching visual evidence of hiding merchandise.","latency_ms":1958.9,"agreement_hint":"miss_pos","center_ts":137.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__qty_spike__4&file=kf_00_136.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__qty_spike__4&file=kf_01_137.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__qty_spike__4&file=kf_02_137.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__qty_spike__4&file=kf_03_138.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and moving through the store; no clear concealment into bag, pocket, or clothing is visible across the sequence. The L1 qty_spike is a soft hint only and lacks matching visual evidence of hiding merchandise.","latency_ms":1958.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Multi-frame behavior shows the customer in the pink dress moving items toward her body, with actions consistent with hiding unpaid merchandise, supported by the L1 qty_spike event indicating a quantity change that aligns with concealment intent across the sequence of frames.","latency_ms":3784.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person in maroon (C#11) is seen moving toward the exit while holding an item close to their body, and then appears to duck or turn quickly near the doorway—consistent with concealing merchandise under clothing or into a bag. The L1 event 'qty_spike' with multiple takes and handheld peak supports this intent, and no payment or return action is observed. The behavior across frames shows clear concealment intent rather than browsing or checkout.","latency_ms":2752.3},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are at a checkout counter, with one person appearing to be in the process of paying or handing over items. There is no visible concealment of merchandise into bags, pockets, or under clothing. The behavior aligns with normal checkout activity.","latency_ms":1687.7}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting041_x264__C_13__2","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"rationale":"The frames show two individuals standing at a counter with visible merchandise; no concealment into bags, pockets, or clothing is evident. The L1 qty_spike is a soft hint only and lacks visual confirmation of hiding behavior.","latency_ms":1712.7,"agreement_hint":"miss_pos","center_ts":391.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__2&file=kf_00_390.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__2&file=kf_01_390.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__2&file=kf_02_391.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__2&file=kf_03_392.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show two individuals standing at a counter with visible merchandise; no concealment into bags, pockets, or clothing is evident. The L1 qty_spike is a soft hint only and lacks visual confirmation of hiding behavior.","latency_ms":1712.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is holding and examining a product in a normal shopping manner, with no visible concealment into bags, pockets, or under clothing across the sequence of frames. The L1 qty_spike event is a soft hint without matching visual evidence of concealment.","latency_ms":2733.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#13) is seen interacting with the counter while another person stands nearby. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, but more importantly, the customer’s posture—bending slightly, hands near the waist/counter area, and the presence of a white bag on the counter—combined with the context of the store layout and lack of visible payment, strongly indicates concealment of unpaid merchandise. No clear checkout or return action is observed; instead, the behavior aligns with shoplifting intent where items are hidden on the body or in bags without payment. The multi-frame sequence shows no item being placed into a cart or basket, nor any visible payment action.","latency_ms":3265.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is at the checkout counter, interacting with the cashier and handling products in a manner consistent with paying for items. There is no visible concealment of merchandise into bags, pockets, or under clothing.","latency_ms":1766.5}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting041_x264__C_13__qty_spike__7","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"rationale":"The frames show two individuals standing at a counter with visible merchandise; no concealment into bags, pockets, or clothing is evident. The L1 qty_spike is a soft proxy and lacks visual confirmation of hiding behavior.","latency_ms":1395.3,"agreement_hint":"miss_pos","center_ts":391.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__qty_spike__7&file=kf_00_390.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__qty_spike__7&file=kf_01_390.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__qty_spike__7&file=kf_02_391.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__qty_spike__7&file=kf_03_392.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show two individuals standing at a counter with visible merchandise; no concealment into bags, pockets, or clothing is evident. The L1 qty_spike is a soft proxy and lacks visual confirmation of hiding behavior.","latency_ms":1395.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is holding and examining a product over the counter, consistent with normal shopping behavior of inspecting merchandise, with no visual evidence of concealing unpaid items into a bag, pocket, or under clothes.","latency_ms":2677.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#13) is seen interacting with the counter while another person stands nearby. The L1 event 'qty_spike' and high 'handheld_peak' suggest multiple items were handled quickly. In the sequence, the customer’s hands are near the counter surface, and there is a white bag or item being held close to the body—consistent with concealing merchandise under clothing or into a bag. No payment is visible, and the behavior aligns with shoplifting intent: rapid handling of multiple items without placing them in a cart or basket, followed by potential concealment. The presence of multiple items on the counter and the customer’s posture indicate an attempt to hide goods rather than normal browsing.","latency_ms":3449.3},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is at the checkout counter, interacting with the cashier and handling products in a manner consistent with paying for items. There is no evidence of concealment or hiding unpaid merchandise.","latency_ms":2899.1}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting041_x264__C_7__1","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"rationale":"The frames show a person holding a white bag and standing near a counter with items, but there is no clear visual evidence of concealing unpaid merchandise into a bag, pocket, or clothing. The behavior appears consistent with normal shopping or carrying a personal bag.","latency_ms":1434.9,"agreement_hint":"miss_pos","center_ts":173.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__1&file=kf_00_172.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__1&file=kf_01_173.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__1&file=kf_02_173.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__1&file=kf_03_174.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a person holding a white bag and standing near a counter with items, but there is no clear visual evidence of concealing unpaid merchandise into a bag, pocket, or clothing. The behavior appears consistent with normal shopping or carrying a personal bag.","latency_ms":1434.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the maroon top is seen moving items toward a white bag across consecutive frames, with actions consistent with hiding unpaid merchandise in the bag, matching the definition of concealment of unpaid items.","latency_ms":2300.3},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#7) is seen holding a white bag and then appears to place an item into it while standing near the counter. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, and the behavior of placing something into the bag without proceeding to checkout indicates concealment intent. The person’s posture and movement toward the bag, combined with the context of being near the counter but not paying, support shoplifting intent. No clear payment or return action is observed.","latency_ms":2280.3},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the maroon shirt is seen placing an item into their bag, which is a clear act of concealment. This behavior aligns with shoplifting intent as the item is not visibly placed into a shopping cart or basket for checkout.","latency_ms":2273.1}]},{"kind":"miss_pos","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting041_x264__C_7__qty_spike__5","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"rationale":"The frames show a person holding a white bag and interacting with merchandise at a counter, but there is no clear visual evidence of concealing unpaid items into pockets, clothing, or a personal bag. The behavior appears consistent with normal shopping or browsing.","latency_ms":1362.8,"agreement_hint":"miss_pos","center_ts":173.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__qty_spike__5&file=kf_00_172.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__qty_spike__5&file=kf_01_173.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__qty_spike__5&file=kf_02_173.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__qty_spike__5&file=kf_03_174.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a person holding a white bag and interacting with merchandise at a counter, but there is no clear visual evidence of concealing unpaid items into pockets, clothing, or a personal bag. The behavior appears consistent with normal shopping or browsing.","latency_ms":1362.8},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the individual in the maroon top is seen moving items toward their white bag, with actions consistent with hiding unpaid merchandise into the bag rather than normal shopping activity. The L1 qty_spike event aligns with this observed behavior of transferring items to a bag without visible checkout activity.","latency_ms":3093.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#7) is seen holding a white bag and repeatedly reaching toward the counter area while another person stands nearby. The L1 event 'qty_spike' with 'taken_proxy>=2' suggests multiple items were taken, and the behavior of lingering near the counter without placing items in a cart or proceeding to checkout indicates intent to conceal unpaid merchandise. The white bag appears to be used for hiding items, consistent with concealment behavior across frames.","latency_ms":3008.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the maroon top is seen placing an item into their bag, which is a clear act of concealment. This behavior aligns with shoplifting intent as they attempt to hide unpaid merchandise.","latency_ms":1617.9}]},{"kind":"miss_pos","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting012_x264__C_14__conceal__7","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.85,"rationale":"The person in the white shirt is handling and examining fabric products on the store table, which is normal shopping behavior consistent with browsing merchandise, with no visual evidence of concealing unpaid items into a bag, pocket, or under clothes. The L1 conceal event is a soft hint that is not supported by clear visual evidence of hiding merchandise.","latency_ms":3134.9,"agreement_hint":"miss_pos","center_ts":562.7666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_14__conceal__7&file=kf_00_561.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_14__conceal__7&file=kf_01_562.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_14__conceal__7&file=kf_02_563.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_14__conceal__7&file=kf_03_563.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show the person in a position consistent with hiding merchandise near the waist area while browsing the display.","latency_ms":1548.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.85,"agreement_hint":"miss_pos","rationale":"The person in the white shirt is handling and examining fabric products on the store table, which is normal shopping behavior consistent with browsing merchandise, with no visual evidence of concealing unpaid items into a bag, pocket, or under clothes. The L1 conceal event is a soft hint that is not supported by clear visual evidence of hiding merchandise.","latency_ms":3134.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (1.0) and high dwell ratio (0.833), indicates the customer likely concealed an item in their pocket or waist area. The person’s posture—bending slightly, hand near hip/low torso—and the absence of visible payment or cart placement across multiple frames support concealment intent rather than browsing or checkout. No clear visual of the item being hidden is seen in these frames, but the multi-frame behavioral pattern and L1 metadata strongly suggest unpaid concealment.","latency_ms":3048.4},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the foreground is seen placing an item into their pocket, consistent with concealment behavior. The L1 event 'conceal' further supports this inference, as it aligns with the visual evidence of hiding unpaid merchandise.","latency_ms":1749.9}]},{"kind":"miss_pos","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_5__2","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The individual is holding multiple clothing items while browsing the clothing rack, with no visible action of concealing items into a bag, pocket, or under clothes; the behavior is consistent with normal shopping activity of examining or carrying items while browsing.","latency_ms":2590.5,"agreement_hint":"miss_pos","center_ts":149.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__2&file=kf_00_148.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__2&file=kf_01_149.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__2&file=kf_02_149.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__2&file=kf_03_150.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks; no concealment into bags, pockets, or clothing is visible. The L1 qty_spike is a soft hint only and is not supported by clear visual evidence of hiding merchandise.","latency_ms":1211.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is holding multiple clothing items while browsing the clothing rack, with no visible action of concealing items into a bag, pocket, or under clothes; the behavior is consistent with normal shopping activity of examining or carrying items while browsing.","latency_ms":2590.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing and handling clothing items on a rack, picking up, examining, and repositioning garments in a typical shopping manner. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothes) or intent to steal — the behavior aligns with normal shopping activity. The L1 event 'qty_spike' is likely due to rapid handling of multiple items while browsing, not theft.","latency_ms":3758.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is picking up and examining clothing items, holding them in their hands, and appears to be browsing through the merchandise. There is no visible concealment of items into bags, pockets, or under clothes, and the behavior aligns with normal shopping activity.","latency_ms":2268.7}]},{"kind":"miss_pos","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_5__qty_spike__7","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The individual is holding multiple clothing items while standing at a clothing rack, engaging in normal shopping behavior of examining or selecting merchandise, with no visible concealment of unpaid items into bags, pockets, or under clothes.","latency_ms":3145.6,"agreement_hint":"miss_pos","center_ts":149.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__qty_spike__7&file=kf_00_148.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__qty_spike__7&file=kf_01_149.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__qty_spike__7&file=kf_02_149.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__qty_spike__7&file=kf_03_150.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The keyframes show customers browsing and handling clothing on racks. No concealment into bags, pockets, or clothing is visible. The L1 qty_spike event is a soft hint and lacks matching visual evidence of theft.","latency_ms":1484.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is holding multiple clothing items while standing at a clothing rack, engaging in normal shopping behavior of examining or selecting merchandise, with no visible concealment of unpaid items into bags, pockets, or under clothes.","latency_ms":3145.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing and handling clothing items on a rack, picking up, examining, and repositioning garments in a typical shopping manner. There is no visual evidence of concealment (e.g., putting items into bags, pockets, or under clothes) or intent to steal — the behavior aligns with normal shopping activity. The L1 event 'qty_spike' may reflect rapid handling but is not supported by visual concealment cues.","latency_ms":3533.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is picking up and examining clothing items, holding them against their body, and appears to be shopping normally. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames.","latency_ms":1591.0}]},{"kind":"miss_pos","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_8__4","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"rationale":"The customer is picking up, holding, and examining a red garment from a clothing rack, which is normal shopping behavior with no visible concealment of unpaid merchandise.","latency_ms":2701.8,"agreement_hint":"miss_pos","center_ts":170.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__4&file=kf_00_169.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__4&file=kf_01_170.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__4&file=kf_02_170.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__4&file=kf_03_171.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.85,"agreement_hint":"miss_pos","rationale":"The person is seen holding and examining clothing items on hangers in a retail store, with no visible concealment into a bag, pocket, or clothing. The behavior is consistent with normal shopping and browsing.","latency_ms":1219.1},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is picking up, holding, and examining a red garment from a clothing rack, which is normal shopping behavior with no visible concealment of unpaid merchandise.","latency_ms":2701.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing and handling clothing items on a rack, selecting and examining them in a typical shopping manner. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothes) or intent to steal — the actions are consistent with normal shopping behavior (picking up, holding, inspecting, and likely returning or placing in cart, though cart not visible). L1 event 'qty_spike' alone is insufficient without visual confirmation of concealment; here, the person’s actions remain transparent and non-suspicious.","latency_ms":3321.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is examining a red garment by holding it up and looking at it, consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or under clothing, and the L1 event 'qty_spike' does not appear to be supported by clear visual evidence of intent to steal.","latency_ms":2522.4}]},{"kind":"miss_pos","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_8__qty_spike__9","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"rationale":"The customer is only picking up, holding, and examining a red garment from a clothing rack across the provided frames, with no action of concealing the item into a bag, pocket, or under clothes. The L1 qty_spike event is a soft hint without matching concealment visual evidence, so normal shopping behavior is confirmed.","latency_ms":3124.5,"agreement_hint":"miss_pos","center_ts":170.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__qty_spike__9&file=kf_00_169.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__qty_spike__9&file=kf_01_170.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__qty_spike__9&file=kf_02_170.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__qty_spike__9&file=kf_03_171.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.85,"agreement_hint":"miss_pos","rationale":"The person is seen holding and examining clothing items on hangers in a retail setting, with no visible concealment into a bag, pocket, or clothing. The behavior is consistent with normal shopping and browsing.","latency_ms":1284.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is only picking up, holding, and examining a red garment from a clothing rack across the provided frames, with no action of concealing the item into a bag, pocket, or under clothes. The L1 qty_spike event is a soft hint without matching concealment visual evidence, so normal shopping behavior is confirmed.","latency_ms":3124.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing and handling clothing items on a rack, selecting and examining them in a typical shopping manner. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothes) or intent to steal — the actions are consistent with normal retail browsing behavior. The L1 event 'qty_spike' may reflect multiple items being handled quickly but does not override the clear visual context of examination and selection without hiding.","latency_ms":2488.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is picking up and examining a red garment from the rack, which is consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or under clothing, and no multi-frame intent to hide the item is evident.","latency_ms":1820.4}]},{"kind":"miss_pos","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting041_x264__C_13__2","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The customer is holding and examining a product in a normal shopping manner, with no visible concealment into bags, pockets, or under clothing across the sequence of frames. The L1 qty_spike event is a soft hint without matching visual evidence of concealment.","latency_ms":2733.4,"agreement_hint":"miss_pos","center_ts":391.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__2&file=kf_00_390.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__2&file=kf_01_390.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__2&file=kf_02_391.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__2&file=kf_03_392.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show two individuals standing at a counter with visible merchandise; no concealment into bags, pockets, or clothing is evident. The L1 qty_spike is a soft hint only and lacks visual confirmation of hiding behavior.","latency_ms":1712.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is holding and examining a product in a normal shopping manner, with no visible concealment into bags, pockets, or under clothing across the sequence of frames. The L1 qty_spike event is a soft hint without matching visual evidence of concealment.","latency_ms":2733.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#13) is seen interacting with the counter while another person stands nearby. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, but more importantly, the customer’s posture—bending slightly, hands near the waist/counter area, and the presence of a white bag on the counter—combined with the context of the store layout and lack of visible payment, strongly indicates concealment of unpaid merchandise. No clear checkout or return action is observed; instead, the behavior aligns with shoplifting intent where items are hidden on the body or in bags without payment. The multi-frame sequence shows no item being placed into a cart or basket, nor any visible payment action.","latency_ms":3265.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is at the checkout counter, interacting with the cashier and handling products in a manner consistent with paying for items. There is no visible concealment of merchandise into bags, pockets, or under clothing.","latency_ms":1766.5}]},{"kind":"miss_pos","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting041_x264__C_13__qty_spike__7","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The customer is holding and examining a product over the counter, consistent with normal shopping behavior of inspecting merchandise, with no visual evidence of concealing unpaid items into a bag, pocket, or under clothes.","latency_ms":2677.0,"agreement_hint":"miss_pos","center_ts":391.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__qty_spike__7&file=kf_00_390.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__qty_spike__7&file=kf_01_390.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__qty_spike__7&file=kf_02_391.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__qty_spike__7&file=kf_03_392.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show two individuals standing at a counter with visible merchandise; no concealment into bags, pockets, or clothing is evident. The L1 qty_spike is a soft proxy and lacks visual confirmation of hiding behavior.","latency_ms":1395.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is holding and examining a product over the counter, consistent with normal shopping behavior of inspecting merchandise, with no visual evidence of concealing unpaid items into a bag, pocket, or under clothes.","latency_ms":2677.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#13) is seen interacting with the counter while another person stands nearby. The L1 event 'qty_spike' and high 'handheld_peak' suggest multiple items were handled quickly. In the sequence, the customer’s hands are near the counter surface, and there is a white bag or item being held close to the body—consistent with concealing merchandise under clothing or into a bag. No payment is visible, and the behavior aligns with shoplifting intent: rapid handling of multiple items without placing them in a cart or basket, followed by potential concealment. The presence of multiple items on the counter and the customer’s posture indicate an attempt to hide goods rather than normal browsing.","latency_ms":3449.3},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is at the checkout counter, interacting with the cashier and handling products in a manner consistent with paying for items. There is no evidence of concealment or hiding unpaid merchandise.","latency_ms":2899.1}]},{"kind":"miss_pos","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting039_x264__C_2__0","clip_id":"ucf_theft__Shoplifting039_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"rationale":"The person is standing near a display area, facing the shelves and looking toward the entrance, with hands on hips in a relaxed posture. No visual evidence of picking up, holding, or concealing any item is present across the frames. The behavior aligns with normal browsing — possibly waiting or observing — and no concealment action (e.g., into bag/pocket/clothes) is observed. L1 event 'qty_spike' alone is insufficient without visual confirmation of theft.","latency_ms":2279.9,"agreement_hint":"miss_pos","center_ts":82.36666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting039_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__0&file=kf_00_81.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__0&file=kf_01_82.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__0&file=kf_02_82.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__0&file=kf_03_83.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a person standing near a display table and shelf, facing away from the camera. No concealment into bag, pocket, or clothing is visible. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1405.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the customer is seen moving items from a display counter and concealing them under their clothing (waistband/pants area) in a manner consistent with hiding unpaid merchandise, matching multi-frame behavior indicating concealment.","latency_ms":2527.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The person is standing near a display area, facing the shelves and looking toward the entrance, with hands on hips in a relaxed posture. No visual evidence of picking up, holding, or concealing any item is present across the frames. The behavior aligns with normal browsing — possibly waiting or observing — and no concealment action (e.g., into bag/pocket/clothes) is observed. L1 event 'qty_spike' alone is insufficient without visual confirmation of theft.","latency_ms":2279.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen picking up an item, examining it briefly, and placing it into a shopping basket. There is no evidence of concealment or hiding the item on their body. The behavior aligns with normal shopping activity.","latency_ms":1742.5}]},{"kind":"miss_pos","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting039_x264__C_2__qty_spike__1","clip_id":"ucf_theft__Shoplifting039_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"rationale":"The person is standing near a display with hands on hips, facing the entrance/exit area, and appears to be browsing or waiting. No visual evidence of picking up, holding, or concealing any merchandise. The L1 event 'qty_spike' is likely a false positive (e.g., due to motion detection or proxy signal), but without actual visual confirmation of item handling or concealment, this behavior aligns with normal browsing. No concealment action is observed across frames.","latency_ms":3609.6,"agreement_hint":"miss_pos","center_ts":82.36666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting039_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__qty_spike__1&file=kf_00_81.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__qty_spike__1&file=kf_01_82.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__qty_spike__1&file=kf_02_82.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__qty_spike__1&file=kf_03_83.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a person standing near a display table and then walking toward the exit. No visual evidence of concealing merchandise into a bag, pocket, or clothing is visible. The L1 qty_spike event is a soft hint and not supported by clear concealment behavior in the provided keyframes.","latency_ms":1481.4},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the customer is seen moving items from a display area and concealing them under their clothing (torso/waist area) without any visible payment action, consistent with hiding unpaid merchandise. The L1 qty_spike event aligns with the observed multi-frame behavior of handling and concealing products.","latency_ms":3204.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The person is standing near a display with hands on hips, facing the entrance/exit area, and appears to be browsing or waiting. No visual evidence of picking up, holding, or concealing any merchandise. The L1 event 'qty_spike' is likely a false positive (e.g., due to motion detection or proxy signal), but without actual visual confirmation of item handling or concealment, this behavior aligns with normal browsing. No concealment action is observed across frames.","latency_ms":3609.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is seen picking up an item, holding it briefly, and examining it while standing near the checkout counter. There is no visible concealment into a bag, pocket, or clothing, and the behavior aligns with normal shopping activity rather than shoplifting intent.","latency_ms":2523.8}]},{"kind":"miss_pos","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_10__1","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"rationale":"The customer is actively browsing clothing racks, reaching for items, and appears to be examining or selecting garments in a normal shopping manner. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothes) or intent to steal. The L1 event 'qty_spike' with 'taken_proxy>=2' may reflect rapid item handling during selection, but without visible concealment, it remains consistent with browsing behavior.","latency_ms":2099.9,"agreement_hint":"miss_pos","center_ts":43.166666666666664,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__1&file=kf_00_42.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__1&file=kf_01_42.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__1&file=kf_02_43.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__1&file=kf_03_44.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show customers browsing and handling clothing on racks, with no visible concealment into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding unpaid merchandise.","latency_ms":1478.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer with dark hair in a white top is observed moving clothing from the rack and tucking it into the back of her jeans (under her clothing) across sequential frames, which constitutes hiding an unpaid product on her body.","latency_ms":2923.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing clothing racks, reaching for items, and appears to be examining or selecting garments in a normal shopping manner. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothes) or intent to steal. The L1 event 'qty_spike' with 'taken_proxy>=2' may reflect rapid item handling during selection, but without visible concealment, it remains consistent with browsing behavior.","latency_ms":2099.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is picking up and examining clothing items from the rack, which is consistent with normal shopping behavior. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames.","latency_ms":1515.5}]},{"kind":"miss_pos","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_10__qty_spike__4","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"rationale":"The customer is actively browsing clothes, reaching into a rack, picking up items, and examining them — typical shopping behavior. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothing) or hiding actions across frames. The L1 'qty_spike' event may reflect rapid item handling during browsing, not theft. No intent to steal is visible.","latency_ms":2088.0,"agreement_hint":"miss_pos","center_ts":43.166666666666664,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__qty_spike__4&file=kf_00_42.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__qty_spike__4&file=kf_01_42.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__qty_spike__4&file=kf_02_43.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__qty_spike__4&file=kf_03_44.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The keyframes show customers browsing and handling clothing on racks in a retail store. No clear concealment into bags, pockets, or clothing is visible across the frames. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding merchandise.","latency_ms":1186.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer in the white top and jeans is observed moving clothing from the rack and positioning items under her lifted top (waist area) across consecutive frames, which constitutes hiding unpaid merchandise on her body. The L1 qty_spike event aligns with the multi-frame behavior of taking items to conceal them, matching the visual evidence of hiding.","latency_ms":2776.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing clothes, reaching into a rack, picking up items, and examining them — typical shopping behavior. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothing) or hiding actions across frames. The L1 'qty_spike' event may reflect rapid item handling during browsing, not theft. No intent to steal is visible.","latency_ms":2088.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is seen picking up and examining clothing items from the rack, which is consistent with normal shopping behavior. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames.","latency_ms":2199.3}]},{"kind":"miss_pos","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_29__3","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"rationale":"The customers are actively browsing clothing racks, picking up items, examining them, and placing them back or holding them while shopping—consistent with normal retail behavior. No visual evidence of concealment (e.g., putting items into bags/pockets/clothes without paying) is observed across the frames. The L1 event 'qty_spike' with 'handheld_peak>=2' may reflect brief handling but does not indicate theft without additional concealment cues.","latency_ms":2309.1,"agreement_hint":"miss_pos","center_ts":157.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__3&file=kf_00_156.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__3&file=kf_01_157.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__3&file=kf_02_157.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__3&file=kf_03_158.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks. No clear concealment into bags, pockets, or clothing is visible across the sequence. The L1 qty_spike signal is a soft hint and lacks matching visual evidence of hiding merchandise.","latency_ms":1415.0},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the white top and jeans is seen moving a clothing item from the rack and concealing it inside the back of their pants (under clothing) across sequential frames, which matches the definition of hiding unpaid merchandise. The L1 qty_spike event aligns with the observed action of taking an item to conceal, supporting the visual evidence.","latency_ms":3317.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customers are actively browsing clothing racks, picking up items, examining them, and placing them back or holding them while shopping—consistent with normal retail behavior. No visual evidence of concealment (e.g., putting items into bags/pockets/clothes without paying) is observed across the frames. The L1 event 'qty_spike' with 'handheld_peak>=2' may reflect brief handling but does not indicate theft without additional concealment cues.","latency_ms":2309.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are seen picking up, holding, and examining clothing items in a typical shopping manner. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames. The behavior aligns with normal browsing and product evaluation.","latency_ms":2214.3}]},{"kind":"miss_pos","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_29__qty_spike__8","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"rationale":"The person is actively browsing clothing racks, picking up and examining items, and holding them visibly while standing near the rack. There is no visual evidence of concealment into bags, pockets, or under clothes. The 'qty_spike' L1 event may reflect multiple items being handled quickly during normal browsing (e.g., checking several garments), but without any indication of hiding or attempting to leave without paying, this remains within normal shopping behavior.","latency_ms":2171.1,"agreement_hint":"miss_pos","center_ts":157.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__qty_spike__8&file=kf_00_156.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__qty_spike__8&file=kf_01_157.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__qty_spike__8&file=kf_02_157.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__qty_spike__8&file=kf_03_158.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks. No clear concealment into bags, pockets, or clothing is visible. The L1 qty_spike event is a soft hint and not supported by visual evidence of hiding merchandise.","latency_ms":1299.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"A woman in a white top and jeans is observed over multiple frames placing clothing items into her pants waistband, hiding them from view, which constitutes concealing unpaid merchandise. The L1 qty_spike event aligns with this multi-frame concealment behavior.","latency_ms":3892.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The person is actively browsing clothing racks, picking up and examining items, and holding them visibly while standing near the rack. There is no visual evidence of concealment into bags, pockets, or under clothes. The 'qty_spike' L1 event may reflect multiple items being handled quickly during normal browsing (e.g., checking several garments), but without any indication of hiding or attempting to leave without paying, this remains within normal shopping behavior.","latency_ms":2171.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are seen picking up, holding, and examining clothing items in a typical shopping manner. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames. The behavior aligns with normal browsing and product evaluation.","latency_ms":2258.6}]},{"kind":"miss_pos","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_4__0","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"rationale":"The customers are actively browsing clothing racks, picking up items, examining them, and placing them back on the rack or holding them while shopping. There is no visual evidence of concealment (e.g., putting items into bags, pockets, or under clothes) or intent to steal. The L1 event 'qty_spike' with 'handheld_peak>=2' may reflect multiple items being held briefly for inspection, which is consistent with normal browsing behavior in a retail setting.","latency_ms":2491.7,"agreement_hint":"miss_pos","center_ts":13.966666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__0&file=kf_00_12.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__0&file=kf_01_13.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__0&file=kf_02_14.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__0&file=kf_03_15.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks; no concealment into a bag, pocket, or clothing is visible. The L1 qty_spike is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1770.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer in the white top is observed moving an item toward their torso/under their clothing across sequential frames, consistent with hiding an unpaid product, matching the L1 event's handheld peak signal indicating multiple items handled with intent to conceal.","latency_ms":2844.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customers are actively browsing clothing racks, picking up items, examining them, and placing them back on the rack or holding them while shopping. There is no visual evidence of concealment (e.g., putting items into bags, pockets, or under clothes) or intent to steal. The L1 event 'qty_spike' with 'handheld_peak>=2' may reflect multiple items being held briefly for inspection, which is consistent with normal browsing behavior in a retail setting.","latency_ms":2491.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are seen browsing through clothing items on the racks, picking up and examining garments. There is no visible concealment of merchandise into bags, pockets, or under clothes. The behavior appears consistent with normal shopping activity.","latency_ms":1793.9}]},{"kind":"miss_pos","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_4__qty_spike__1","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"rationale":"The customers are actively browsing clothing racks, picking up items, examining them, and placing them back or holding them while shopping—consistent with normal retail behavior. No visual evidence of concealment (e.g., putting items into bags/pockets/clothes) or intent to steal is observed across the frames. The L1 event 'qty_spike' is likely due to multiple items being handled in quick succession during normal browsing (e.g., trying on or comparing), not theft.","latency_ms":2496.2,"agreement_hint":"miss_pos","center_ts":13.966666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__qty_spike__1&file=kf_00_12.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__qty_spike__1&file=kf_01_13.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__qty_spike__1&file=kf_02_14.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__qty_spike__1&file=kf_03_15.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks; no concealment into bags, pockets, or clothing is visible. The L1 qty_spike is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":935.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer in the white top is observed moving an item toward their torso/under their clothing across sequential frames, consistent with hiding an unpaid product, supported by the L1 qty_spike event indicating a quantity change associated with this activity.","latency_ms":2453.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customers are actively browsing clothing racks, picking up items, examining them, and placing them back or holding them while shopping—consistent with normal retail behavior. No visual evidence of concealment (e.g., putting items into bags/pockets/clothes) or intent to steal is observed across the frames. The L1 event 'qty_spike' is likely due to multiple items being handled in quick succession during normal browsing (e.g., trying on or comparing), not theft.","latency_ms":2496.2},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are seen examining and handling clothing items on the racks, consistent with normal shopping behavior. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames.","latency_ms":2091.4}]},{"kind":"miss_pos","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_5__2","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"rationale":"The customer is actively browsing and handling clothing items on a rack, picking up, examining, and repositioning garments in a typical shopping manner. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothes) or intent to steal — the behavior aligns with normal shopping activity. The L1 event 'qty_spike' is likely due to rapid handling of multiple items while browsing, not theft.","latency_ms":3758.1,"agreement_hint":"miss_pos","center_ts":149.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__2&file=kf_00_148.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__2&file=kf_01_149.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__2&file=kf_02_149.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__2&file=kf_03_150.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks; no concealment into bags, pockets, or clothing is visible. The L1 qty_spike is a soft hint only and is not supported by clear visual evidence of hiding merchandise.","latency_ms":1211.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is holding multiple clothing items while browsing the clothing rack, with no visible action of concealing items into a bag, pocket, or under clothes; the behavior is consistent with normal shopping activity of examining or carrying items while browsing.","latency_ms":2590.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing and handling clothing items on a rack, picking up, examining, and repositioning garments in a typical shopping manner. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothes) or intent to steal — the behavior aligns with normal shopping activity. The L1 event 'qty_spike' is likely due to rapid handling of multiple items while browsing, not theft.","latency_ms":3758.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is picking up and examining clothing items, holding them in their hands, and appears to be browsing through the merchandise. There is no visible concealment of items into bags, pockets, or under clothes, and the behavior aligns with normal shopping activity.","latency_ms":2268.7}]},{"kind":"miss_pos","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_5__qty_spike__7","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"rationale":"The customer is actively browsing and handling clothing items on a rack, picking up, examining, and repositioning garments in a typical shopping manner. There is no visual evidence of concealment (e.g., putting items into bags, pockets, or under clothes) or intent to steal — the behavior aligns with normal shopping activity. The L1 event 'qty_spike' may reflect rapid handling but is not supported by visual concealment cues.","latency_ms":3533.7,"agreement_hint":"miss_pos","center_ts":149.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__qty_spike__7&file=kf_00_148.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__qty_spike__7&file=kf_01_149.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__qty_spike__7&file=kf_02_149.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__qty_spike__7&file=kf_03_150.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The keyframes show customers browsing and handling clothing on racks. No concealment into bags, pockets, or clothing is visible. The L1 qty_spike event is a soft hint and lacks matching visual evidence of theft.","latency_ms":1484.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is holding multiple clothing items while standing at a clothing rack, engaging in normal shopping behavior of examining or selecting merchandise, with no visible concealment of unpaid items into bags, pockets, or under clothes.","latency_ms":3145.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing and handling clothing items on a rack, picking up, examining, and repositioning garments in a typical shopping manner. There is no visual evidence of concealment (e.g., putting items into bags, pockets, or under clothes) or intent to steal — the behavior aligns with normal shopping activity. The L1 event 'qty_spike' may reflect rapid handling but is not supported by visual concealment cues.","latency_ms":3533.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is picking up and examining clothing items, holding them against their body, and appears to be shopping normally. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames.","latency_ms":1591.0}]},{"kind":"miss_pos","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_71__6","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The customer is browsing clothing racks, standing in front of a rack and appearing to examine items. There is no visual evidence of concealment (e.g., putting items into bag/pocket/clothes) or hiding behavior across frames. The L1 event 'qty_spike' with 'handheld_peak>=2' may indicate brief handling but is consistent with normal shopping (e.g., picking up multiple items to compare), not theft. No intent to steal is visible.","latency_ms":3486.8,"agreement_hint":"miss_pos","center_ts":665.9666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__6&file=kf_00_664.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__6&file=kf_01_665.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__6&file=kf_02_666.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__6&file=kf_03_667.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The person is seen browsing clothing racks and holding items near a bag, but there is no clear visual evidence of concealing unpaid merchandise into a bag, pocket, or clothing. The L1 qty_spike event is a soft hint and not sufficient for a concealment determination.","latency_ms":1461.0},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across the sequence of frames, the customer in the turquoise shirt is manipulating clothing from the rack while their personal bag is positioned at their side, with visual evidence of movement that suggests placing an item into the bag, consistent with hiding unpaid merchandise. The L1 qty_spike event aligns with this observed multi-frame behavior of concealing an item.","latency_ms":3151.3},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is browsing clothing racks, standing in front of a rack and appearing to examine items. There is no visual evidence of concealment (e.g., putting items into bag/pocket/clothes) or hiding behavior across frames. The L1 event 'qty_spike' with 'handheld_peak>=2' may indicate brief handling but is consistent with normal shopping (e.g., picking up multiple items to compare), not theft. No intent to steal is visible.","latency_ms":3486.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen browsing through clothing items on the rack, picking up and examining garments. There is no visible concealment of merchandise into a bag, pocket, or under clothes across the frames. The behavior aligns with normal shopping activity.","latency_ms":1982.4}]},{"kind":"miss_pos","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_71__qty_spike__15","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"rationale":"The customer is browsing clothing racks, standing in front of merchandise, and appears to be examining items. There is no visual evidence of concealment (e.g., putting items into bag/pocket/clothes) or hiding behavior across the frames. The L1 event 'qty_spike' with 'handheld_peak>=2' may indicate brief handling but does not confirm theft without visible concealment. Since the person remains in the open, interacting with items normally (e.g., looking, possibly touching), this falls under normal shopping behavior.","latency_ms":3364.6,"agreement_hint":"miss_pos","center_ts":665.9666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__qty_spike__15&file=kf_00_664.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__qty_spike__15&file=kf_01_665.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__qty_spike__15&file=kf_02_666.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__qty_spike__15&file=kf_03_667.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a shopper browsing clothing racks with a shoulder bag; no visible concealment into bag, pockets, or clothing is evident across the sequence. The L1 qty_spike is a soft hint only and lacks matching visual concealment evidence.","latency_ms":1122.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the customer uses their open hand to move clothing on the rack while their large shoulder bag is positioned at their side, with visual evidence of the hand moving toward the bag area consistent with hiding an unpaid item; the L1 qty_spike event provides supporting context for potential concealment, matching multi-frame behavior of hiding merchandise in a personal bag.","latency_ms":3954.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is browsing clothing racks, standing in front of merchandise, and appears to be examining items. There is no visual evidence of concealment (e.g., putting items into bag/pocket/clothes) or hiding behavior across the frames. The L1 event 'qty_spike' with 'handheld_peak>=2' may indicate brief handling but does not confirm theft without visible concealment. Since the person remains in the open, interacting with items normally (e.g., looking, possibly touching), this falls under normal shopping behavior.","latency_ms":3364.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is seen browsing through clothing items on the rack, picking up and examining garments. There is no visible concealment of merchandise into a bag, pocket, or under clothes. The behavior appears consistent with normal shopping activity.","latency_ms":1965.9}]},{"kind":"miss_pos","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_8__4","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"rationale":"The customer is actively browsing and handling clothing items on a rack, selecting and examining them in a typical shopping manner. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothes) or intent to steal — the actions are consistent with normal shopping behavior (picking up, holding, inspecting, and likely returning or placing in cart, though cart not visible). L1 event 'qty_spike' alone is insufficient without visual confirmation of concealment; here, the person’s actions remain transparent and non-suspicious.","latency_ms":3321.0,"agreement_hint":"miss_pos","center_ts":170.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__4&file=kf_00_169.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__4&file=kf_01_170.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__4&file=kf_02_170.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__4&file=kf_03_171.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.85,"agreement_hint":"miss_pos","rationale":"The person is seen holding and examining clothing items on hangers in a retail store, with no visible concealment into a bag, pocket, or clothing. The behavior is consistent with normal shopping and browsing.","latency_ms":1219.1},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is picking up, holding, and examining a red garment from a clothing rack, which is normal shopping behavior with no visible concealment of unpaid merchandise.","latency_ms":2701.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing and handling clothing items on a rack, selecting and examining them in a typical shopping manner. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothes) or intent to steal — the actions are consistent with normal shopping behavior (picking up, holding, inspecting, and likely returning or placing in cart, though cart not visible). L1 event 'qty_spike' alone is insufficient without visual confirmation of concealment; here, the person’s actions remain transparent and non-suspicious.","latency_ms":3321.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is examining a red garment by holding it up and looking at it, consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or under clothing, and the L1 event 'qty_spike' does not appear to be supported by clear visual evidence of intent to steal.","latency_ms":2522.4}]},{"kind":"miss_pos","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_8__qty_spike__9","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"rationale":"The customer is actively browsing and handling clothing items on a rack, selecting and examining them in a typical shopping manner. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothes) or intent to steal — the actions are consistent with normal retail browsing behavior. The L1 event 'qty_spike' may reflect multiple items being handled quickly but does not override the clear visual context of examination and selection without hiding.","latency_ms":2488.9,"agreement_hint":"miss_pos","center_ts":170.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__qty_spike__9&file=kf_00_169.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__qty_spike__9&file=kf_01_170.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__qty_spike__9&file=kf_02_170.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__qty_spike__9&file=kf_03_171.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.85,"agreement_hint":"miss_pos","rationale":"The person is seen holding and examining clothing items on hangers in a retail setting, with no visible concealment into a bag, pocket, or clothing. The behavior is consistent with normal shopping and browsing.","latency_ms":1284.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is only picking up, holding, and examining a red garment from a clothing rack across the provided frames, with no action of concealing the item into a bag, pocket, or under clothes. The L1 qty_spike event is a soft hint without matching concealment visual evidence, so normal shopping behavior is confirmed.","latency_ms":3124.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing and handling clothing items on a rack, selecting and examining them in a typical shopping manner. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothes) or intent to steal — the actions are consistent with normal retail browsing behavior. The L1 event 'qty_spike' may reflect multiple items being handled quickly but does not override the clear visual context of examination and selection without hiding.","latency_ms":2488.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is picking up and examining a red garment from the rack, which is consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or under clothing, and no multi-frame intent to hide the item is evident.","latency_ms":1820.4}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting012_x264__C_16__conceal__5","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"rationale":"The individual is engaged in a transaction at the checkout counter, handling items on the table and interacting with the cashier. There is no evidence of concealment or hiding of merchandise.","latency_ms":1807.7,"agreement_hint":"miss_pos","center_ts":441.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_16__conceal__5&file=kf_00_440.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_16__conceal__5&file=kf_01_440.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_16__conceal__5&file=kf_02_441.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_16__conceal__5&file=kf_03_442.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.4,"agreement_hint":"uncertain","rationale":"The keyframes show a person seated at a counter handling fabric and interacting with another person, but no clear concealment into a bag, pocket, or under clothes is visible across the frames. The L1 conceal hint is not corroborated by obvious visual evidence in these images.","latency_ms":1179.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a conceal event under clothes, with model score 0.85, and multi-frame behavior aligns with hiding merchandise on the person's body, matching the conceal_unpaid label criteria.","latency_ms":2964.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 0.833) indicates the person likely concealed an item under their clothes. The person is seated at a table with fabrics, and their posture and arm movement suggest hiding something—consistent with concealment intent. No payment or visible return to shelf occurs; no clear checkout action. This matches 'conceal_unpaid' per rules: multi-frame hiding behavior, not just browsing.","latency_ms":3244.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is engaged in a transaction at the checkout counter, handling items on the table and interacting with the cashier. There is no evidence of concealment or hiding of merchandise.","latency_ms":1807.7}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting012_x264__C_21__conceal__6","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The person is examining a large piece of fabric on a table, which is consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or under clothing, and the actions across the frames suggest she is inspecting the item rather than attempting to steal it.","latency_ms":2522.6,"agreement_hint":"miss_pos","center_ts":489.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_21__conceal__6&file=kf_00_488.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_21__conceal__6&file=kf_01_488.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_21__conceal__6&file=kf_02_489.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_21__conceal__6&file=kf_03_490.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the yellow and black top is seen handling merchandise at the table and then moving her hands toward her hip/pocket area, consistent with the L1 conceal event (subtype pocket, zone hip). The multi-frame sequence shows her interacting with items and then concealing them on her body rather than carrying them visibly or placing them in a cart.","latency_ms":1443.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment event in the hip pocket zone, with supporting trajectory evidence, and multi-frame behavior aligns with hiding an unpaid item on the person’s body, matching the conceal_unpaid label criteria.","latency_ms":3062.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappearance (item vanishes from view after interaction) and high model score (0.85), strongly suggests the person is concealing an item in their pocket or clothing. The multi-frame behavior shows the individual standing near a large fabric display, interacting closely with it, and maintaining a posture consistent with hiding something at the hip. No payment or visible placement into a cart occurs; no clear return to shelf. This aligns with 'conceal_unpaid' per rules: concealment into pocket/clothes inferred across frames, not just a single grab.","latency_ms":3355.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is examining a large piece of fabric on a table, which is consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or under clothing, and the actions across the frames suggest she is inspecting the item rather than attempting to steal it.","latency_ms":2522.6}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting012_x264__C_3__conceal__1","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"rationale":"The individual is standing at a checkout counter with a large item spread out on the counter, appearing to be in the process of paying or completing a transaction. There is no evidence of concealment or hiding of merchandise.","latency_ms":2250.0,"agreement_hint":"miss_pos","center_ts":174.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_3__conceal__1&file=kf_00_173.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_3__conceal__1&file=kf_01_174.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_3__conceal__1&file=kf_02_174.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_3__conceal__1&file=kf_03_175.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the yellow top is seen handling merchandise at the display table and then making movements consistent with tucking or hiding an item under their clothing, matching the L1 conceal event subtype 'under_clothes'.","latency_ms":1282.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer is observed manipulating a large golden fabric item, tucking it under their clothing (consistent with the L1 event subtype 'under_clothes') across consecutive frames, showing clear intent to conceal an unpaid product rather than normal shopping activity.","latency_ms":3036.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 1.0) indicates the person likely concealed an item under their clothes. The person is standing near the counter with a large fabric item being handled by another person, but the keyframe sequence shows no visible payment or return to shelf; instead, the concealment pattern aligns with shoplifting intent. No clear visual of the item being hidden in this specific frame set, but the L1 context strongly supports concealment intent across frames.","latency_ms":3073.4},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is standing at a checkout counter with a large item spread out on the counter, appearing to be in the process of paying or completing a transaction. There is no evidence of concealment or hiding of merchandise.","latency_ms":2250.0}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting012_x264__C_5__conceal__0","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"rationale":"The individual is seated at a table in what appears to be a restaurant or dining area, interacting with another person who seems to be an employee or server. There is no evidence of concealment, hiding, or shoplifting intent. The behavior is consistent with normal dining and checkout activities.","latency_ms":2111.1,"agreement_hint":"miss_pos","center_ts":101.96666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_5__conceal__0&file=kf_00_100.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_5__conceal__0&file=kf_01_101.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_5__conceal__0&file=kf_02_102.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_5__conceal__0&file=kf_03_103.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the yellow top is seen seated and repeatedly interacting with an item near their lap/waist area, with the L1 event indicating concealment under clothes. Across the frames, the item is no longer visible on the table or in hand, suggesting it was hidden on the body.","latency_ms":1400.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the person in the white shirt moves a yellow product from the counter and conceals it under their clothing (pants/waist area), matching the L1 conceal event subtype of under_clothes, with multi-frame behavior showing the product being hidden rather than normal shopping or checkout.","latency_ms":3269.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'under_clothes', and the visual sequence shows the customer (C#5, P#5) sitting at the counter while the staff member is distracted; the customer's hand is near their waist/hip area where a yellow item (likely the concealed product) is later seen in the staff member's hand. The trajectory evidence indicates 'below_threshold' and 'co_disappear', consistent with hiding an item under clothes. No payment occurs, and the item is not placed in a visible cart or basket. This meets the criteria for 'conceal_unpaid' as it involves hiding merchandise on the body without intent to pay.","latency_ms":4061.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is seated at a table in what appears to be a restaurant or dining area, interacting with another person who seems to be an employee or server. There is no evidence of concealment, hiding, or shoplifting intent. The behavior is consistent with normal dining and checkout activities.","latency_ms":2111.1}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting012_x264__C_6__conceal__2","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"rationale":"The individual is standing at a checkout counter with merchandise laid out on the table, appearing to be in the process of paying or completing a transaction. There is no visible concealment of items into bags, pockets, or under clothing, and the behavior aligns with normal checkout procedures.","latency_ms":2099.4,"agreement_hint":"miss_pos","center_ts":199.16666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_6__conceal__2&file=kf_00_198.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_6__conceal__2&file=kf_01_198.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_6__conceal__2&file=kf_02_199.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_6__conceal__2&file=kf_03_200.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the yellow top is seen handling merchandise at the display table and then moving their hands toward their hip/pocket area in a manner consistent with concealing an item, matching the L1 conceal event with pocket/hip subtype.","latency_ms":1571.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer (C#6) is observed over multiple frames moving an item toward their hip pocket, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior showing the item being hidden in their clothing pocket.","latency_ms":3468.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after interaction) and high model score (0.85), strongly indicates the customer is concealing an item in their pocket or clothing. The person's posture and hand movements near the hip area across frames support this, especially since they are not placing the item in a visible cart or basket. No payment is observed, and the context suggests intent to steal rather than browse.","latency_ms":3213.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is standing at a checkout counter with merchandise laid out on the table, appearing to be in the process of paying or completing a transaction. There is no visible concealment of items into bags, pockets, or under clothing, and the behavior aligns with normal checkout procedures.","latency_ms":2099.4}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting012_x264__C_9__conceal__3","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.95,"rationale":"The individual is seated at a counter, interacting with a salesperson who appears to be processing a transaction. There are no visible signs of concealment or hiding of merchandise, and the behavior aligns with a normal checkout process.","latency_ms":2280.8,"agreement_hint":"miss_pos","center_ts":232.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_9__conceal__3&file=kf_00_231.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_9__conceal__3&file=kf_01_232.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_9__conceal__3&file=kf_02_232.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_9__conceal__3&file=kf_03_233.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The keyframes show a person in a yellow top seated at a counter with another person standing nearby, appearing to handle items on the counter. No clear concealment into a bag, pocket, or clothing is visible across the frames, and the L1 conceal event is not corroborated by obvious visual evidence.","latency_ms":1216.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 conceal event with subtype 'pocket' (hip zone) aligns with multi-frame visual context of the individual's actions, showing behavior consistent with hiding an unpaid item on their person, matching the conceal_unpaid label criteria.","latency_ms":2285.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after interaction) and high model score (0.85), strongly indicates the person is concealing an item in their pocket or clothing. The multi-frame behavior shows them leaning over the table, interacting with items, then a clear disappearance of the item from visible space—consistent with concealment rather than browsing or checkout. No payment or return to shelf is observed.","latency_ms":2880.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The individual is seated at a counter, interacting with a salesperson who appears to be processing a transaction. There are no visible signs of concealment or hiding of merchandise, and the behavior aligns with a normal checkout process.","latency_ms":2280.8}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting030_x264__C_1__0","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The person is seen holding an item in their hand and appears to be examining or considering it, consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or clothing, and the actions do not indicate shoplifting intent.","latency_ms":2089.1,"agreement_hint":"miss_pos","center_ts":158.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__0&file=kf_00_157.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__0&file=kf_01_158.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__0&file=kf_02_158.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__0&file=kf_03_159.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show individuals standing and interacting near a display counter, with no visible concealment of merchandise into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding intent across frames.","latency_ms":1161.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the green plaid shirt adjusts their bag in a sequence of frames, with the bag appearing to shift position toward their torso in a way consistent with hiding an unpaid item, paired with the L1 qty_spike event indicating a potential product take.","latency_ms":3069.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (in the plaid shirt, center-right) is seen bending down and placing an item into a bag or pocket area near their waist/hip while others are distracted. The L1 event 'qty_spike' and 'handheld_peak>=2' suggest multiple items were handled quickly, and the body posture (bending, hiding motion) combined with the context of a retail store strongly indicates concealment of unpaid merchandise. This matches the definition of 'conceal_unpaid' — hiding on the body — not just browsing.","latency_ms":2728.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen holding an item in their hand and appears to be examining or considering it, consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or clothing, and the actions do not indicate shoplifting intent.","latency_ms":2089.1}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting030_x264__C_1__qty_spike__3","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The person is seen holding and examining a product in their hand, consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or under clothing, and the actions appear to be part of a typical browsing process.","latency_ms":3339.3,"agreement_hint":"miss_pos","center_ts":158.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__qty_spike__3&file=kf_00_157.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__qty_spike__3&file=kf_01_158.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__qty_spike__3&file=kf_02_158.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__qty_spike__3&file=kf_03_159.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show multiple people in a retail environment, with some individuals holding or examining items near a display counter. There is no clear visual evidence of a person concealing unpaid merchandise into a bag, pocket, or clothing across the frames. The L1 event is a soft qty_spike hint, but the visuals do not confirm concealment or shoplifting intent.","latency_ms":2239.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the green plaid shirt adjusts their bag in a sequence of frames, with the bag positioned to conceal items, consistent with hiding unpaid merchandise. The L1 qty_spike event provides additional soft context supporting potential concealment, and the multi-frame behavior shows intent to hide items rather than normal browsing.","latency_ms":2861.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (in blue shirt) is seen bending down and reaching toward the floor near their feet while holding a large brown bag. In the context of the L1 event 'qty_spike' and 'handheld_peak>=2', combined with the posture suggesting an attempt to hide or retrieve an item, this behavior strongly indicates concealment of unpaid merchandise. The person’s hand movement near the bag and lower body suggests placing or retrieving an item into the bag without paying. No clear checkout or return action is observed.","latency_ms":2898.2},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen holding and examining a product in their hand, consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or under clothing, and the actions appear to be part of a typical browsing process.","latency_ms":3339.3}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting039_x264__C_2__0","clip_id":"ucf_theft__Shoplifting039_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The person is seen picking up an item, examining it briefly, and placing it into a shopping basket. There is no evidence of concealment or hiding the item on their body. The behavior aligns with normal shopping activity.","latency_ms":1742.5,"agreement_hint":"miss_pos","center_ts":82.36666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting039_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__0&file=kf_00_81.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__0&file=kf_01_82.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__0&file=kf_02_82.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__0&file=kf_03_83.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a person standing near a display table and shelf, facing away from the camera. No concealment into bag, pocket, or clothing is visible. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1405.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the customer is seen moving items from a display counter and concealing them under their clothing (waistband/pants area) in a manner consistent with hiding unpaid merchandise, matching multi-frame behavior indicating concealment.","latency_ms":2527.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The person is standing near a display area, facing the shelves and looking toward the entrance, with hands on hips in a relaxed posture. No visual evidence of picking up, holding, or concealing any item is present across the frames. The behavior aligns with normal browsing — possibly waiting or observing — and no concealment action (e.g., into bag/pocket/clothes) is observed. L1 event 'qty_spike' alone is insufficient without visual confirmation of theft.","latency_ms":2279.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen picking up an item, examining it briefly, and placing it into a shopping basket. There is no evidence of concealment or hiding the item on their body. The behavior aligns with normal shopping activity.","latency_ms":1742.5}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting039_x264__C_2__qty_spike__1","clip_id":"ucf_theft__Shoplifting039_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The customer is seen picking up an item, holding it briefly, and examining it while standing near the checkout counter. There is no visible concealment into a bag, pocket, or clothing, and the behavior aligns with normal shopping activity rather than shoplifting intent.","latency_ms":2523.8,"agreement_hint":"miss_pos","center_ts":82.36666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting039_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__qty_spike__1&file=kf_00_81.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__qty_spike__1&file=kf_01_82.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__qty_spike__1&file=kf_02_82.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__qty_spike__1&file=kf_03_83.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a person standing near a display table and then walking toward the exit. No visual evidence of concealing merchandise into a bag, pocket, or clothing is visible. The L1 qty_spike event is a soft hint and not supported by clear concealment behavior in the provided keyframes.","latency_ms":1481.4},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the customer is seen moving items from a display area and concealing them under their clothing (torso/waist area) without any visible payment action, consistent with hiding unpaid merchandise. The L1 qty_spike event aligns with the observed multi-frame behavior of handling and concealing products.","latency_ms":3204.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The person is standing near a display with hands on hips, facing the entrance/exit area, and appears to be browsing or waiting. No visual evidence of picking up, holding, or concealing any merchandise. The L1 event 'qty_spike' is likely a false positive (e.g., due to motion detection or proxy signal), but without actual visual confirmation of item handling or concealment, this behavior aligns with normal browsing. No concealment action is observed across frames.","latency_ms":3609.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is seen picking up an item, holding it briefly, and examining it while standing near the checkout counter. There is no visible concealment into a bag, pocket, or clothing, and the behavior aligns with normal shopping activity rather than shoplifting intent.","latency_ms":2523.8}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_10__1","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The customer is picking up and examining clothing items from the rack, which is consistent with normal shopping behavior. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames.","latency_ms":1515.5,"agreement_hint":"miss_pos","center_ts":43.166666666666664,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__1&file=kf_00_42.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__1&file=kf_01_42.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__1&file=kf_02_43.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__1&file=kf_03_44.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show customers browsing and handling clothing on racks, with no visible concealment into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding unpaid merchandise.","latency_ms":1478.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer with dark hair in a white top is observed moving clothing from the rack and tucking it into the back of her jeans (under her clothing) across sequential frames, which constitutes hiding an unpaid product on her body.","latency_ms":2923.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing clothing racks, reaching for items, and appears to be examining or selecting garments in a normal shopping manner. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothes) or intent to steal. The L1 event 'qty_spike' with 'taken_proxy>=2' may reflect rapid item handling during selection, but without visible concealment, it remains consistent with browsing behavior.","latency_ms":2099.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is picking up and examining clothing items from the rack, which is consistent with normal shopping behavior. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames.","latency_ms":1515.5}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_10__conceal__3","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The person is seen picking up and examining clothing items, which is consistent with normal shopping behavior. There is no visible concealment of merchandise into a bag, pocket, or under clothes across the frames.","latency_ms":2072.5,"agreement_hint":"miss_pos","center_ts":41.56666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__conceal__3&file=kf_00_40.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__conceal__3&file=kf_01_41.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__conceal__3&file=kf_02_41.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__conceal__3&file=kf_03_42.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action under clothes, and the multi-frame sequence shows a person in the foreground with a white top and dark hair whose body orientation and hand movements are consistent with hiding an item near the waistband or under clothing while browsing. The concealment is not fully visible due to occlusion, but the behavior aligns with the L1 conceal hint and the trajectory evidence of item disappearance.","latency_ms":1794.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the white long-sleeve shirt repeatedly manipulates clothing near their torso, with multi-frame behavior showing actions consistent with hiding an item under their clothing, matching the L1 conceal event subtype of under_clothes.","latency_ms":3242.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high trajectory score (0.6678) + co_disappear=1.0 across 6 frames strongly indicates concealment under clothes. The person's posture (bending, hand near waist/hip area) and the context of being in a clothing store support intent to hide merchandise without payment. No visible checkout or return actions occur.","latency_ms":2858.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen picking up and examining clothing items, which is consistent with normal shopping behavior. There is no visible concealment of merchandise into a bag, pocket, or under clothes across the frames.","latency_ms":2072.5}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_10__qty_spike__4","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The customer is seen picking up and examining clothing items from the rack, which is consistent with normal shopping behavior. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames.","latency_ms":2199.3,"agreement_hint":"miss_pos","center_ts":43.166666666666664,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__qty_spike__4&file=kf_00_42.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__qty_spike__4&file=kf_01_42.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__qty_spike__4&file=kf_02_43.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__qty_spike__4&file=kf_03_44.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The keyframes show customers browsing and handling clothing on racks in a retail store. No clear concealment into bags, pockets, or clothing is visible across the frames. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding merchandise.","latency_ms":1186.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer in the white top and jeans is observed moving clothing from the rack and positioning items under her lifted top (waist area) across consecutive frames, which constitutes hiding unpaid merchandise on her body. The L1 qty_spike event aligns with the multi-frame behavior of taking items to conceal them, matching the visual evidence of hiding.","latency_ms":2776.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing clothes, reaching into a rack, picking up items, and examining them — typical shopping behavior. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothing) or hiding actions across frames. The L1 'qty_spike' event may reflect rapid item handling during browsing, not theft. No intent to steal is visible.","latency_ms":2088.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is seen picking up and examining clothing items from the rack, which is consistent with normal shopping behavior. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames.","latency_ms":2199.3}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_29__3","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The individuals are seen picking up, holding, and examining clothing items in a typical shopping manner. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames. The behavior aligns with normal browsing and product evaluation.","latency_ms":2214.3,"agreement_hint":"miss_pos","center_ts":157.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__3&file=kf_00_156.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__3&file=kf_01_157.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__3&file=kf_02_157.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__3&file=kf_03_158.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks. No clear concealment into bags, pockets, or clothing is visible across the sequence. The L1 qty_spike signal is a soft hint and lacks matching visual evidence of hiding merchandise.","latency_ms":1415.0},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the white top and jeans is seen moving a clothing item from the rack and concealing it inside the back of their pants (under clothing) across sequential frames, which matches the definition of hiding unpaid merchandise. The L1 qty_spike event aligns with the observed action of taking an item to conceal, supporting the visual evidence.","latency_ms":3317.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customers are actively browsing clothing racks, picking up items, examining them, and placing them back or holding them while shopping—consistent with normal retail behavior. No visual evidence of concealment (e.g., putting items into bags/pockets/clothes without paying) is observed across the frames. The L1 event 'qty_spike' with 'handheld_peak>=2' may reflect brief handling but does not indicate theft without additional concealment cues.","latency_ms":2309.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are seen picking up, holding, and examining clothing items in a typical shopping manner. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames. The behavior aligns with normal browsing and product evaluation.","latency_ms":2214.3}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_29__qty_spike__8","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The individuals are seen picking up, holding, and examining clothing items in a typical shopping manner. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames. The behavior aligns with normal browsing and product evaluation.","latency_ms":2258.6,"agreement_hint":"miss_pos","center_ts":157.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__qty_spike__8&file=kf_00_156.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__qty_spike__8&file=kf_01_157.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__qty_spike__8&file=kf_02_157.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__qty_spike__8&file=kf_03_158.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks. No clear concealment into bags, pockets, or clothing is visible. The L1 qty_spike event is a soft hint and not supported by visual evidence of hiding merchandise.","latency_ms":1299.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"A woman in a white top and jeans is observed over multiple frames placing clothing items into her pants waistband, hiding them from view, which constitutes concealing unpaid merchandise. The L1 qty_spike event aligns with this multi-frame concealment behavior.","latency_ms":3892.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The person is actively browsing clothing racks, picking up and examining items, and holding them visibly while standing near the rack. There is no visual evidence of concealment into bags, pockets, or under clothes. The 'qty_spike' L1 event may reflect multiple items being handled quickly during normal browsing (e.g., checking several garments), but without any indication of hiding or attempting to leave without paying, this remains within normal shopping behavior.","latency_ms":2171.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are seen picking up, holding, and examining clothing items in a typical shopping manner. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames. The behavior aligns with normal browsing and product evaluation.","latency_ms":2258.6}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_4__0","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The individuals are seen browsing through clothing items on the racks, picking up and examining garments. There is no visible concealment of merchandise into bags, pockets, or under clothes. The behavior appears consistent with normal shopping activity.","latency_ms":1793.9,"agreement_hint":"miss_pos","center_ts":13.966666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__0&file=kf_00_12.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__0&file=kf_01_13.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__0&file=kf_02_14.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__0&file=kf_03_15.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks; no concealment into a bag, pocket, or clothing is visible. The L1 qty_spike is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1770.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer in the white top is observed moving an item toward their torso/under their clothing across sequential frames, consistent with hiding an unpaid product, matching the L1 event's handheld peak signal indicating multiple items handled with intent to conceal.","latency_ms":2844.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customers are actively browsing clothing racks, picking up items, examining them, and placing them back on the rack or holding them while shopping. There is no visual evidence of concealment (e.g., putting items into bags, pockets, or under clothes) or intent to steal. The L1 event 'qty_spike' with 'handheld_peak>=2' may reflect multiple items being held briefly for inspection, which is consistent with normal browsing behavior in a retail setting.","latency_ms":2491.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are seen browsing through clothing items on the racks, picking up and examining garments. There is no visible concealment of merchandise into bags, pockets, or under clothes. The behavior appears consistent with normal shopping activity.","latency_ms":1793.9}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_4__qty_spike__1","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The individuals are seen examining and handling clothing items on the racks, consistent with normal shopping behavior. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames.","latency_ms":2091.4,"agreement_hint":"miss_pos","center_ts":13.966666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__qty_spike__1&file=kf_00_12.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__qty_spike__1&file=kf_01_13.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__qty_spike__1&file=kf_02_14.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__qty_spike__1&file=kf_03_15.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks; no concealment into bags, pockets, or clothing is visible. The L1 qty_spike is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":935.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer in the white top is observed moving an item toward their torso/under their clothing across sequential frames, consistent with hiding an unpaid product, supported by the L1 qty_spike event indicating a quantity change associated with this activity.","latency_ms":2453.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customers are actively browsing clothing racks, picking up items, examining them, and placing them back or holding them while shopping—consistent with normal retail behavior. No visual evidence of concealment (e.g., putting items into bags/pockets/clothes) or intent to steal is observed across the frames. The L1 event 'qty_spike' is likely due to multiple items being handled in quick succession during normal browsing (e.g., trying on or comparing), not theft.","latency_ms":2496.2},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are seen examining and handling clothing items on the racks, consistent with normal shopping behavior. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames.","latency_ms":2091.4}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_5__2","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The customer is picking up and examining clothing items, holding them in their hands, and appears to be browsing through the merchandise. There is no visible concealment of items into bags, pockets, or under clothes, and the behavior aligns with normal shopping activity.","latency_ms":2268.7,"agreement_hint":"miss_pos","center_ts":149.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__2&file=kf_00_148.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__2&file=kf_01_149.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__2&file=kf_02_149.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__2&file=kf_03_150.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks; no concealment into bags, pockets, or clothing is visible. The L1 qty_spike is a soft hint only and is not supported by clear visual evidence of hiding merchandise.","latency_ms":1211.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is holding multiple clothing items while browsing the clothing rack, with no visible action of concealing items into a bag, pocket, or under clothes; the behavior is consistent with normal shopping activity of examining or carrying items while browsing.","latency_ms":2590.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing and handling clothing items on a rack, picking up, examining, and repositioning garments in a typical shopping manner. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothes) or intent to steal — the behavior aligns with normal shopping activity. The L1 event 'qty_spike' is likely due to rapid handling of multiple items while browsing, not theft.","latency_ms":3758.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is picking up and examining clothing items, holding them in their hands, and appears to be browsing through the merchandise. There is no visible concealment of items into bags, pockets, or under clothes, and the behavior aligns with normal shopping activity.","latency_ms":2268.7}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_5__conceal__6","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The customer is seen picking up and examining clothing items, placing them into a shopping basket, and interacting with the merchandise in a manner consistent with normal shopping behavior. There is no visible concealment of unpaid items into bags, pockets, or under clothes.","latency_ms":2064.0,"agreement_hint":"miss_pos","center_ts":148.76666666666668,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__conceal__6&file=kf_00_147.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__conceal__6&file=kf_01_148.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__conceal__6&file=kf_02_149.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__conceal__6&file=kf_03_149.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the multi-frame sequence shows a person handling merchandise in a manner consistent with hiding it on their body rather than openly carrying it.","latency_ms":1825.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#5) is holding multiple garments and moving toward their hip pocket (per L1 event subtype 'pocket'), with multi-frame behavior showing the action of positioning items to conceal them on their person, consistent with hiding unpaid merchandise.","latency_ms":3190.3},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' at hip zone, and the trajectory analysis shows co-disappear (item vanishes from view after interaction) with high score (0.65) and 100% dwell ratio. The person's posture and hand motion toward the hip area across multiple frames suggest hiding an item in a pocket or waistband, consistent with concealment intent. No payment or return to shelf is observed.","latency_ms":2657.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is seen picking up and examining clothing items, placing them into a shopping basket, and interacting with the merchandise in a manner consistent with normal shopping behavior. There is no visible concealment of unpaid items into bags, pockets, or under clothes.","latency_ms":2064.0}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_5__qty_spike__7","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The customer is picking up and examining clothing items, holding them against their body, and appears to be shopping normally. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames.","latency_ms":1591.0,"agreement_hint":"miss_pos","center_ts":149.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__qty_spike__7&file=kf_00_148.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__qty_spike__7&file=kf_01_149.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__qty_spike__7&file=kf_02_149.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__qty_spike__7&file=kf_03_150.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The keyframes show customers browsing and handling clothing on racks. No concealment into bags, pockets, or clothing is visible. The L1 qty_spike event is a soft hint and lacks matching visual evidence of theft.","latency_ms":1484.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is holding multiple clothing items while standing at a clothing rack, engaging in normal shopping behavior of examining or selecting merchandise, with no visible concealment of unpaid items into bags, pockets, or under clothes.","latency_ms":3145.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing and handling clothing items on a rack, picking up, examining, and repositioning garments in a typical shopping manner. There is no visual evidence of concealment (e.g., putting items into bags, pockets, or under clothes) or intent to steal — the behavior aligns with normal shopping activity. The L1 event 'qty_spike' may reflect rapid handling but is not supported by visual concealment cues.","latency_ms":3533.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is picking up and examining clothing items, holding them against their body, and appears to be shopping normally. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames.","latency_ms":1591.0}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_71__6","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The person is seen browsing through clothing items on the rack, picking up and examining garments. There is no visible concealment of merchandise into a bag, pocket, or under clothes across the frames. The behavior aligns with normal shopping activity.","latency_ms":1982.4,"agreement_hint":"miss_pos","center_ts":665.9666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__6&file=kf_00_664.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__6&file=kf_01_665.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__6&file=kf_02_666.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__6&file=kf_03_667.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The person is seen browsing clothing racks and holding items near a bag, but there is no clear visual evidence of concealing unpaid merchandise into a bag, pocket, or clothing. The L1 qty_spike event is a soft hint and not sufficient for a concealment determination.","latency_ms":1461.0},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across the sequence of frames, the customer in the turquoise shirt is manipulating clothing from the rack while their personal bag is positioned at their side, with visual evidence of movement that suggests placing an item into the bag, consistent with hiding unpaid merchandise. The L1 qty_spike event aligns with this observed multi-frame behavior of concealing an item.","latency_ms":3151.3},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is browsing clothing racks, standing in front of a rack and appearing to examine items. There is no visual evidence of concealment (e.g., putting items into bag/pocket/clothes) or hiding behavior across frames. The L1 event 'qty_spike' with 'handheld_peak>=2' may indicate brief handling but is consistent with normal shopping (e.g., picking up multiple items to compare), not theft. No intent to steal is visible.","latency_ms":3486.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen browsing through clothing items on the rack, picking up and examining garments. There is no visible concealment of merchandise into a bag, pocket, or under clothes across the frames. The behavior aligns with normal shopping activity.","latency_ms":1982.4}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_71__qty_spike__15","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The customer is seen browsing through clothing items on the rack, picking up and examining garments. There is no visible concealment of merchandise into a bag, pocket, or under clothes. The behavior appears consistent with normal shopping activity.","latency_ms":1965.9,"agreement_hint":"miss_pos","center_ts":665.9666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__qty_spike__15&file=kf_00_664.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__qty_spike__15&file=kf_01_665.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__qty_spike__15&file=kf_02_666.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__qty_spike__15&file=kf_03_667.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a shopper browsing clothing racks with a shoulder bag; no visible concealment into bag, pockets, or clothing is evident across the sequence. The L1 qty_spike is a soft hint only and lacks matching visual concealment evidence.","latency_ms":1122.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the customer uses their open hand to move clothing on the rack while their large shoulder bag is positioned at their side, with visual evidence of the hand moving toward the bag area consistent with hiding an unpaid item; the L1 qty_spike event provides supporting context for potential concealment, matching multi-frame behavior of hiding merchandise in a personal bag.","latency_ms":3954.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is browsing clothing racks, standing in front of merchandise, and appears to be examining items. There is no visual evidence of concealment (e.g., putting items into bag/pocket/clothes) or hiding behavior across the frames. The L1 event 'qty_spike' with 'handheld_peak>=2' may indicate brief handling but does not confirm theft without visible concealment. Since the person remains in the open, interacting with items normally (e.g., looking, possibly touching), this falls under normal shopping behavior.","latency_ms":3364.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is seen browsing through clothing items on the rack, picking up and examining garments. There is no visible concealment of merchandise into a bag, pocket, or under clothes. The behavior appears consistent with normal shopping activity.","latency_ms":1965.9}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_8__4","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The person is examining a red garment by holding it up and looking at it, consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or under clothing, and the L1 event 'qty_spike' does not appear to be supported by clear visual evidence of intent to steal.","latency_ms":2522.4,"agreement_hint":"miss_pos","center_ts":170.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__4&file=kf_00_169.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__4&file=kf_01_170.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__4&file=kf_02_170.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__4&file=kf_03_171.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.85,"agreement_hint":"miss_pos","rationale":"The person is seen holding and examining clothing items on hangers in a retail store, with no visible concealment into a bag, pocket, or clothing. The behavior is consistent with normal shopping and browsing.","latency_ms":1219.1},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is picking up, holding, and examining a red garment from a clothing rack, which is normal shopping behavior with no visible concealment of unpaid merchandise.","latency_ms":2701.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing and handling clothing items on a rack, selecting and examining them in a typical shopping manner. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothes) or intent to steal — the actions are consistent with normal shopping behavior (picking up, holding, inspecting, and likely returning or placing in cart, though cart not visible). L1 event 'qty_spike' alone is insufficient without visual confirmation of concealment; here, the person’s actions remain transparent and non-suspicious.","latency_ms":3321.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is examining a red garment by holding it up and looking at it, consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or under clothing, and the L1 event 'qty_spike' does not appear to be supported by clear visual evidence of intent to steal.","latency_ms":2522.4}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_8__qty_spike__9","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The person is picking up and examining a red garment from the rack, which is consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or under clothing, and no multi-frame intent to hide the item is evident.","latency_ms":1820.4,"agreement_hint":"miss_pos","center_ts":170.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__qty_spike__9&file=kf_00_169.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__qty_spike__9&file=kf_01_170.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__qty_spike__9&file=kf_02_170.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__qty_spike__9&file=kf_03_171.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.85,"agreement_hint":"miss_pos","rationale":"The person is seen holding and examining clothing items on hangers in a retail setting, with no visible concealment into a bag, pocket, or clothing. The behavior is consistent with normal shopping and browsing.","latency_ms":1284.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is only picking up, holding, and examining a red garment from a clothing rack across the provided frames, with no action of concealing the item into a bag, pocket, or under clothes. The L1 qty_spike event is a soft hint without matching concealment visual evidence, so normal shopping behavior is confirmed.","latency_ms":3124.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing and handling clothing items on a rack, selecting and examining them in a typical shopping manner. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothes) or intent to steal — the actions are consistent with normal retail browsing behavior. The L1 event 'qty_spike' may reflect multiple items being handled quickly but does not override the clear visual context of examination and selection without hiding.","latency_ms":2488.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is picking up and examining a red garment from the rack, which is consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or under clothing, and no multi-frame intent to hide the item is evident.","latency_ms":1820.4}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting041_x264__C_11__0","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"rationale":"The individuals are at a checkout counter, with one person appearing to pay or complete a transaction while the other waits nearby. There is no visible concealment of merchandise into bags, pockets, or clothing, and their behavior aligns with typical checkout activity.","latency_ms":1699.8,"agreement_hint":"miss_pos","center_ts":137.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__0&file=kf_00_136.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__0&file=kf_01_137.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__0&file=kf_02_137.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__0&file=kf_03_138.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and moving through the store; no clear concealment into bag, pocket, or clothing is visible across the sequence.","latency_ms":1150.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Multi-frame behavior shows the individual in the pink outfit moving items toward their body, with actions consistent with hiding unpaid merchandise, supported by the L1 qty_spike event indicating an unusual number of items were taken from the shelf area.","latency_ms":3187.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person in maroon (C#11) is seen moving toward the exit while holding an item close to their body, and then appears to duck or turn quickly near the doorway—consistent with concealing merchandise under clothing or into a bag. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, and the multi-frame behavior shows intent to hide rather than return or pay. No visible checkout or return occurs.","latency_ms":2428.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are at a checkout counter, with one person appearing to pay or complete a transaction while the other waits nearby. There is no visible concealment of merchandise into bags, pockets, or clothing, and their behavior aligns with typical checkout activity.","latency_ms":1699.8}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting041_x264__C_11__conceal__3","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.95,"rationale":"The person is at the checkout counter, interacting with the cashier and placing items into a shopping bag. There is no evidence of concealment or hiding unpaid merchandise. The behavior aligns with normal checkout procedures.","latency_ms":2201.0,"agreement_hint":"miss_pos","center_ts":124.76666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__conceal__3&file=kf_00_123.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__conceal__3&file=kf_01_124.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__conceal__3&file=kf_02_125.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__conceal__3&file=kf_03_125.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The keyframes show individuals near a counter with bags, but no clear concealment of unpaid merchandise into pockets or clothing is visible. The L1 conceal event is a soft hint, but visual evidence does not confirm shoplifting intent.","latency_ms":1637.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Visual evidence across frames shows a person placing an item into a pocket (consistent with the L1 conceal event subtype of pocket) while moving toward the exit, with multi-frame behavior indicating hiding an unpaid item rather than normal shopping or checkout.","latency_ms":3198.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (product vanishing from view after interaction) and dwell ratio of 1.0, strongly indicates concealment. The person in the pink dress is at the counter, and the visual flow suggests they placed an item into a pocket or under clothing near the hip area—consistent with multi-frame concealment intent. No payment is observed, and the risk score, though low, aligns with the soft signal. This meets the criteria for 'conceal_unpaid' as defined: hiding on the body without visible checkout.","latency_ms":3176.4},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The person is at the checkout counter, interacting with the cashier and placing items into a shopping bag. There is no evidence of concealment or hiding unpaid merchandise. The behavior aligns with normal checkout procedures.","latency_ms":2201.0}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting041_x264__C_11__qty_spike__4","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"rationale":"The individuals are at a checkout counter, with one person appearing to be in the process of paying or handing over items. There is no visible concealment of merchandise into bags, pockets, or under clothing. The behavior aligns with normal checkout activity.","latency_ms":1687.7,"agreement_hint":"miss_pos","center_ts":137.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__qty_spike__4&file=kf_00_136.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__qty_spike__4&file=kf_01_137.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__qty_spike__4&file=kf_02_137.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__qty_spike__4&file=kf_03_138.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and moving through the store; no clear concealment into bag, pocket, or clothing is visible across the sequence. The L1 qty_spike is a soft hint only and lacks matching visual evidence of hiding merchandise.","latency_ms":1958.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Multi-frame behavior shows the customer in the pink dress moving items toward her body, with actions consistent with hiding unpaid merchandise, supported by the L1 qty_spike event indicating a quantity change that aligns with concealment intent across the sequence of frames.","latency_ms":3784.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person in maroon (C#11) is seen moving toward the exit while holding an item close to their body, and then appears to duck or turn quickly near the doorway—consistent with concealing merchandise under clothing or into a bag. The L1 event 'qty_spike' with multiple takes and handheld peak supports this intent, and no payment or return action is observed. The behavior across frames shows clear concealment intent rather than browsing or checkout.","latency_ms":2752.3},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are at a checkout counter, with one person appearing to be in the process of paying or handing over items. There is no visible concealment of merchandise into bags, pockets, or under clothing. The behavior aligns with normal checkout activity.","latency_ms":1687.7}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting041_x264__C_13__2","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"rationale":"The customer is at the checkout counter, interacting with the cashier and handling products in a manner consistent with paying for items. There is no visible concealment of merchandise into bags, pockets, or under clothing.","latency_ms":1766.5,"agreement_hint":"miss_pos","center_ts":391.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__2&file=kf_00_390.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__2&file=kf_01_390.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__2&file=kf_02_391.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__2&file=kf_03_392.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show two individuals standing at a counter with visible merchandise; no concealment into bags, pockets, or clothing is evident. The L1 qty_spike is a soft hint only and lacks visual confirmation of hiding behavior.","latency_ms":1712.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is holding and examining a product in a normal shopping manner, with no visible concealment into bags, pockets, or under clothing across the sequence of frames. The L1 qty_spike event is a soft hint without matching visual evidence of concealment.","latency_ms":2733.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#13) is seen interacting with the counter while another person stands nearby. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, but more importantly, the customer’s posture—bending slightly, hands near the waist/counter area, and the presence of a white bag on the counter—combined with the context of the store layout and lack of visible payment, strongly indicates concealment of unpaid merchandise. No clear checkout or return action is observed; instead, the behavior aligns with shoplifting intent where items are hidden on the body or in bags without payment. The multi-frame sequence shows no item being placed into a cart or basket, nor any visible payment action.","latency_ms":3265.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is at the checkout counter, interacting with the cashier and handling products in a manner consistent with paying for items. There is no visible concealment of merchandise into bags, pockets, or under clothing.","latency_ms":1766.5}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting041_x264__C_13__conceal__6","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"rationale":"The person is standing at a checkout counter with items placed on the counter, indicating they are in the process of paying for their purchases. There is no evidence of concealment or hiding of merchandise.","latency_ms":1692.1,"agreement_hint":"miss_pos","center_ts":360.76666666666665,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__conceal__6&file=kf_00_359.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__conceal__6&file=kf_01_360.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__conceal__6&file=kf_02_361.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__conceal__6&file=kf_03_361.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a conceal action at the hip/pocket with a model score of 0.85, and the keyframes show a person in a maroon outfit standing near a counter with items, consistent with hiding merchandise on the body.","latency_ms":3158.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The woman in the maroon sari is seen moving an item toward her hip pocket across sequential frames, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior showing intent to hide the unpaid item on her person.","latency_ms":2422.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after approach) and high model score (0.85), strongly suggests the person concealed an item in their pocket or clothing. The multi-frame behavior shows the person standing near the counter, then turning away while holding something near their hip area—consistent with hiding merchandise. No payment is observed, and no clear return to shelf or cart placement occurs. This meets the criteria for 'conceal_unpaid' as defined: hiding product on body without visible payment intent.","latency_ms":3111.4},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is standing at a checkout counter with items placed on the counter, indicating they are in the process of paying for their purchases. There is no evidence of concealment or hiding of merchandise.","latency_ms":1692.1}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting041_x264__C_13__qty_spike__7","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"rationale":"The customer is at the checkout counter, interacting with the cashier and handling products in a manner consistent with paying for items. There is no evidence of concealment or hiding unpaid merchandise.","latency_ms":2899.1,"agreement_hint":"miss_pos","center_ts":391.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__qty_spike__7&file=kf_00_390.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__qty_spike__7&file=kf_01_390.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__qty_spike__7&file=kf_02_391.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__qty_spike__7&file=kf_03_392.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show two individuals standing at a counter with visible merchandise; no concealment into bags, pockets, or clothing is evident. The L1 qty_spike is a soft proxy and lacks visual confirmation of hiding behavior.","latency_ms":1395.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is holding and examining a product over the counter, consistent with normal shopping behavior of inspecting merchandise, with no visual evidence of concealing unpaid items into a bag, pocket, or under clothes.","latency_ms":2677.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#13) is seen interacting with the counter while another person stands nearby. The L1 event 'qty_spike' and high 'handheld_peak' suggest multiple items were handled quickly. In the sequence, the customer’s hands are near the counter surface, and there is a white bag or item being held close to the body—consistent with concealing merchandise under clothing or into a bag. No payment is visible, and the behavior aligns with shoplifting intent: rapid handling of multiple items without placing them in a cart or basket, followed by potential concealment. The presence of multiple items on the counter and the customer’s posture indicate an attempt to hide goods rather than normal browsing.","latency_ms":3449.3},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is at the checkout counter, interacting with the cashier and handling products in a manner consistent with paying for items. There is no evidence of concealment or hiding unpaid merchandise.","latency_ms":2899.1}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting041_x264__C_7__conceal__0","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"rationale":"The person is at a checkout counter, interacting with the cashier and appears to be in the process of paying for items. There is no visible concealment or intent to hide merchandise.","latency_ms":1801.8,"agreement_hint":"miss_pos","center_ts":15.566666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__conceal__0&file=kf_00_14.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__conceal__0&file=kf_01_15.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__conceal__0&file=kf_02_15.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__conceal__0&file=kf_03_16.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.4,"agreement_hint":"uncertain","rationale":"The L1 event suggests a concealment into a pocket at the hip, but the provided keyframes show only general store activity with people browsing and holding items. No clear visual evidence of hiding merchandise in clothing or a bag is visible across the frames.","latency_ms":1578.8},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the blue top is observed over consecutive frames moving an item toward their hip pocket (consistent with the L1 conceal event subtype of pocket), showing multi-frame behavior of hiding an unpaid product on their person.","latency_ms":2859.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with the person's posture (bending slightly toward the counter while holding a child), suggests an attempt to hide an item in their clothing or pocket. The multi-frame context shows no clear payment action, and the person is not visibly placing items into a cart or basket. The high model score (0.85) and legacy streak (5) support this interpretation despite low trajectory evidence.","latency_ms":2778.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is at a checkout counter, interacting with the cashier and appears to be in the process of paying for items. There is no visible concealment or intent to hide merchandise.","latency_ms":1801.8}]},{"kind":"miss_pos","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"zenodo_theft__main220_Trim5__C_1__conceal__0","clip_id":"zenodo_theft__main220_Trim5","weak_label":"positive","l1_event_type":"conceal","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"rationale":"The individual is holding a shopping basket and examining products on the shelves, consistent with normal shopping behavior. There is no visible concealment of merchandise into a bag, pocket, or under clothing across the frames.","latency_ms":2492.2,"agreement_hint":"miss_pos","center_ts":1.5666666666666667,"corpus":"zenodo","media_url":null,"playable":false,"keyframe_urls":["/api/path1_case_keyframe?case_id=zenodo_theft__main220_Trim5__C_1__conceal__0&file=kf_00_0.43s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main220_Trim5__C_1__conceal__0&file=kf_01_1.20s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main220_Trim5__C_1__conceal__0&file=kf_02_1.93s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main220_Trim5__C_1__conceal__0&file=kf_03_2.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person is seen holding a shopping basket while reaching toward the shelf, and the L1 event indicates a concealment action into a pocket at the hip. The multi-frame sequence shows the person moving through the aisle with the basket, consistent with hiding merchandise rather than normal browsing or checkout.","latency_ms":1373.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer is seen moving an item from the shelf toward his hip pocket (as indicated by L1 conceal event subtype pocket) across sequential frames, hiding the item from view rather than placing it into the shopping basket, consistent with concealing unpaid merchandise.","latency_ms":2790.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' and zone 'hip', supported by trajectory evidence showing co-disappearance (item vanishes from view after interaction) and high model score (0.85). Visually, the person picks up an item (frame 1), then in subsequent frames (2–4) walks away while holding the basket but also appears to have the item tucked into their pocket or waist area—consistent with concealment behavior. No visible placement into cart/basket or return to shelf occurs; no checkout is seen. This meets the criteria for 'conceal_unpaid' as defined: hiding product on body with multi-frame intent, not just a single grab.","latency_ms":3486.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is holding a shopping basket and examining products on the shelves, consistent with normal shopping behavior. There is no visible concealment of merchandise into a bag, pocket, or under clothing across the frames.","latency_ms":2492.2}]}],"keep_ok":[{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting012_x264__C_14__conceal__7","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show the person in a position consistent with hiding merchandise near the waist area while browsing the display.","latency_ms":1548.7,"agreement_hint":"keep_ok","center_ts":562.7666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_14__conceal__7&file=kf_00_561.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_14__conceal__7&file=kf_01_562.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_14__conceal__7&file=kf_02_563.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_14__conceal__7&file=kf_03_563.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show the person in a position consistent with hiding merchandise near the waist area while browsing the display.","latency_ms":1548.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.85,"agreement_hint":"miss_pos","rationale":"The person in the white shirt is handling and examining fabric products on the store table, which is normal shopping behavior consistent with browsing merchandise, with no visual evidence of concealing unpaid items into a bag, pocket, or under clothes. The L1 conceal event is a soft hint that is not supported by clear visual evidence of hiding merchandise.","latency_ms":3134.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (1.0) and high dwell ratio (0.833), indicates the customer likely concealed an item in their pocket or waist area. The person’s posture—bending slightly, hand near hip/low torso—and the absence of visible payment or cart placement across multiple frames support concealment intent rather than browsing or checkout. No clear visual of the item being hidden is seen in these frames, but the multi-frame behavioral pattern and L1 metadata strongly suggest unpaid concealment.","latency_ms":3048.4},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the foreground is seen placing an item into their pocket, consistent with concealment behavior. The L1 event 'conceal' further supports this inference, as it aligns with the visual evidence of hiding unpaid merchandise.","latency_ms":1749.9}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting012_x264__C_20__conceal__4","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"rationale":"The L1 event indicates a concealment action at the hip/pocket with a model score of 0.85, and the keyframes show the person in an orange top interacting with merchandise at a display table. While the exact concealment is not perfectly clear in the low-resolution frames, the multi-frame behavior and L1 evidence suggest the person is hiding unpaid merchandise on their body.","latency_ms":1494.8,"agreement_hint":"keep_ok","center_ts":417.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_20__conceal__4&file=kf_00_416.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_20__conceal__4&file=kf_01_416.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_20__conceal__4&file=kf_02_417.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_20__conceal__4&file=kf_03_418.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a model score of 0.85, and the keyframes show the person in an orange top interacting with merchandise at a display table. While the exact concealment is not perfectly clear in the low-resolution frames, the multi-frame behavior and L1 evidence suggest the person is hiding unpaid merchandise on their body.","latency_ms":1494.8},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the yellow top interacts with merchandise across multiple frames, with L1 event indicating concealment in a hip pocket; multi-frame behavior shows handling of goods consistent with hiding unpaid items, matching the conceal_unpaid criteria.","latency_ms":3008.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after interaction) and high model score (0.85), strongly indicates the person is concealing merchandise in their pocket or clothing. The multi-frame behavior shows them handling fabric items near the counter, then moving with a posture suggesting hidden placement—consistent with shoplifting intent. No payment or visible return to shelf occurs.","latency_ms":2698.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing a large, patterned fabric item into their bag or pocket area near the checkout counter, consistent with concealment behavior. The surrounding context of other shoppers and staff does not contradict this intent.","latency_ms":2191.8}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting012_x264__C_21__conceal__6","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"rationale":"The person in the yellow and black top is seen handling merchandise at the table and then moving her hands toward her hip/pocket area, consistent with the L1 conceal event (subtype pocket, zone hip). The multi-frame sequence shows her interacting with items and then concealing them on her body rather than carrying them visibly or placing them in a cart.","latency_ms":1443.2,"agreement_hint":"keep_ok","center_ts":489.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_21__conceal__6&file=kf_00_488.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_21__conceal__6&file=kf_01_488.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_21__conceal__6&file=kf_02_489.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_21__conceal__6&file=kf_03_490.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the yellow and black top is seen handling merchandise at the table and then moving her hands toward her hip/pocket area, consistent with the L1 conceal event (subtype pocket, zone hip). The multi-frame sequence shows her interacting with items and then concealing them on her body rather than carrying them visibly or placing them in a cart.","latency_ms":1443.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment event in the hip pocket zone, with supporting trajectory evidence, and multi-frame behavior aligns with hiding an unpaid item on the person’s body, matching the conceal_unpaid label criteria.","latency_ms":3062.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappearance (item vanishes from view after interaction) and high model score (0.85), strongly suggests the person is concealing an item in their pocket or clothing. The multi-frame behavior shows the individual standing near a large fabric display, interacting closely with it, and maintaining a posture consistent with hiding something at the hip. No payment or visible placement into a cart occurs; no clear return to shelf. This aligns with 'conceal_unpaid' per rules: concealment into pocket/clothes inferred across frames, not just a single grab.","latency_ms":3355.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is examining a large piece of fabric on a table, which is consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or under clothing, and the actions across the frames suggest she is inspecting the item rather than attempting to steal it.","latency_ms":2522.6}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting012_x264__C_3__conceal__1","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"rationale":"The person in the yellow top is seen handling merchandise at the display table and then making movements consistent with tucking or hiding an item under their clothing, matching the L1 conceal event subtype 'under_clothes'.","latency_ms":1282.9,"agreement_hint":"keep_ok","center_ts":174.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_3__conceal__1&file=kf_00_173.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_3__conceal__1&file=kf_01_174.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_3__conceal__1&file=kf_02_174.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_3__conceal__1&file=kf_03_175.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the yellow top is seen handling merchandise at the display table and then making movements consistent with tucking or hiding an item under their clothing, matching the L1 conceal event subtype 'under_clothes'.","latency_ms":1282.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer is observed manipulating a large golden fabric item, tucking it under their clothing (consistent with the L1 event subtype 'under_clothes') across consecutive frames, showing clear intent to conceal an unpaid product rather than normal shopping activity.","latency_ms":3036.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 1.0) indicates the person likely concealed an item under their clothes. The person is standing near the counter with a large fabric item being handled by another person, but the keyframe sequence shows no visible payment or return to shelf; instead, the concealment pattern aligns with shoplifting intent. No clear visual of the item being hidden in this specific frame set, but the L1 context strongly supports concealment intent across frames.","latency_ms":3073.4},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is standing at a checkout counter with a large item spread out on the counter, appearing to be in the process of paying or completing a transaction. There is no evidence of concealment or hiding of merchandise.","latency_ms":2250.0}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting012_x264__C_5__conceal__0","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"rationale":"The person in the yellow top is seen seated and repeatedly interacting with an item near their lap/waist area, with the L1 event indicating concealment under clothes. Across the frames, the item is no longer visible on the table or in hand, suggesting it was hidden on the body.","latency_ms":1400.6,"agreement_hint":"keep_ok","center_ts":101.96666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_5__conceal__0&file=kf_00_100.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_5__conceal__0&file=kf_01_101.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_5__conceal__0&file=kf_02_102.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_5__conceal__0&file=kf_03_103.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the yellow top is seen seated and repeatedly interacting with an item near their lap/waist area, with the L1 event indicating concealment under clothes. Across the frames, the item is no longer visible on the table or in hand, suggesting it was hidden on the body.","latency_ms":1400.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the person in the white shirt moves a yellow product from the counter and conceals it under their clothing (pants/waist area), matching the L1 conceal event subtype of under_clothes, with multi-frame behavior showing the product being hidden rather than normal shopping or checkout.","latency_ms":3269.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'under_clothes', and the visual sequence shows the customer (C#5, P#5) sitting at the counter while the staff member is distracted; the customer's hand is near their waist/hip area where a yellow item (likely the concealed product) is later seen in the staff member's hand. The trajectory evidence indicates 'below_threshold' and 'co_disappear', consistent with hiding an item under clothes. No payment occurs, and the item is not placed in a visible cart or basket. This meets the criteria for 'conceal_unpaid' as it involves hiding merchandise on the body without intent to pay.","latency_ms":4061.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is seated at a table in what appears to be a restaurant or dining area, interacting with another person who seems to be an employee or server. There is no evidence of concealment, hiding, or shoplifting intent. The behavior is consistent with normal dining and checkout activities.","latency_ms":2111.1}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting012_x264__C_6__conceal__2","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"rationale":"The person in the yellow top is seen handling merchandise at the display table and then moving their hands toward their hip/pocket area in a manner consistent with concealing an item, matching the L1 conceal event with pocket/hip subtype.","latency_ms":1571.9,"agreement_hint":"keep_ok","center_ts":199.16666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_6__conceal__2&file=kf_00_198.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_6__conceal__2&file=kf_01_198.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_6__conceal__2&file=kf_02_199.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_6__conceal__2&file=kf_03_200.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the yellow top is seen handling merchandise at the display table and then moving their hands toward their hip/pocket area in a manner consistent with concealing an item, matching the L1 conceal event with pocket/hip subtype.","latency_ms":1571.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer (C#6) is observed over multiple frames moving an item toward their hip pocket, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior showing the item being hidden in their clothing pocket.","latency_ms":3468.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after interaction) and high model score (0.85), strongly indicates the customer is concealing an item in their pocket or clothing. The person's posture and hand movements near the hip area across frames support this, especially since they are not placing the item in a visible cart or basket. No payment is observed, and the context suggests intent to steal rather than browse.","latency_ms":3213.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is standing at a checkout counter with merchandise laid out on the table, appearing to be in the process of paying or completing a transaction. There is no visible concealment of items into bags, pockets, or under clothing, and the behavior aligns with normal checkout procedures.","latency_ms":2099.4}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting014_x264__C_1__conceal__1","clip_id":"ucf_theft__Shoplifting014_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"rationale":"The person in the orange outfit is seen moving through the store and appears to be concealing an item under her clothing or in a bag, consistent with the L1 conceal event indicating a pocket/hip concealment.","latency_ms":1336.9,"agreement_hint":"keep_ok","center_ts":754.7666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting014_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_1__conceal__1&file=kf_00_753.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_1__conceal__1&file=kf_01_754.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_1__conceal__1&file=kf_02_755.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_1__conceal__1&file=kf_03_755.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the orange outfit is seen moving through the store and appears to be concealing an item under her clothing or in a bag, consistent with the L1 conceal event indicating a pocket/hip concealment.","latency_ms":1336.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the patterned top and red pants is observed moving an item from the shelf area toward their hip pocket across consecutive frames, matching the L1 conceal event subtype of pocket concealment, with visual evidence of hiding an unpaid product on their person.","latency_ms":2729.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' and zone 'hip', and the visual sequence shows the person (in red/orange attire) turning away from the shelf, bringing their hands toward their hip area while holding a dark item, consistent with pocketing or concealing merchandise under clothing. The multi-frame behavior supports concealment intent rather than browsing or checkout. No payment is observed, and the risk score, though low, aligns with the visual evidence of hiding an item on the body.","latency_ms":2899.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their pocket or waistband area, which is consistent with concealment behavior. This action, combined with the L1 event 'conceal' and the visual evidence of the item being hidden on the body, strongly suggests intent to steal unpaid merchandise.","latency_ms":1722.4}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting014_x264__C_4__conceal__0","clip_id":"ucf_theft__Shoplifting014_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The person in red is seen handling merchandise near a rack and then turning away while adjusting her clothing, consistent with concealing an item under her clothes. The L1 event 'conceal' with subtype 'under_clothes' and high model score supports this, and the multi-frame sequence shows a clear hiding action rather than normal browsing.","latency_ms":1563.0,"agreement_hint":"keep_ok","center_ts":87.96666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting014_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_4__conceal__0&file=kf_00_86.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_4__conceal__0&file=kf_01_87.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_4__conceal__0&file=kf_02_88.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_4__conceal__0&file=kf_03_89.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The person in red is seen handling merchandise near a rack and then turning away while adjusting her clothing, consistent with concealing an item under her clothes. The L1 event 'conceal' with subtype 'under_clothes' and high model score supports this, and the multi-frame sequence shows a clear hiding action rather than normal browsing.","latency_ms":1563.0},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer interacts with clothing on a rack, and multi-frame behavior shows an action consistent with hiding an item under her clothing (matching the L1 conceal event subtype of under_clothes), with no visible payment action or return to shelf for the item, indicating concealment of unpaid merchandise.","latency_ms":3259.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 0.6667) indicates the person likely concealed an item under clothing. In the frames, the person is seen adjusting her headscarf/face area while holding a garment, which aligns with hiding an item under clothes — a classic shoplifting tactic. No payment or return to shelf is observed, and the behavior is inconsistent with normal browsing.","latency_ms":2715.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item under their clothing, which is consistent with concealment behavior. The L1 event 'conceal' further supports this inference.","latency_ms":2596.6}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting014_x264__C_77__conceal__2","clip_id":"ucf_theft__Shoplifting014_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"rationale":"The person is seen holding a dark item and moving it toward her hip/pocket area while turning away from the camera, consistent with the L1 conceal event indicating a pocket concealment at the hip. The multi-frame sequence shows the item disappearing from view near her body, suggesting unpaid concealment rather than normal browsing.","latency_ms":1657.2,"agreement_hint":"keep_ok","center_ts":1947.9666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting014_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_77__conceal__2&file=kf_00_1946.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_77__conceal__2&file=kf_01_1947.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_77__conceal__2&file=kf_02_1948.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_77__conceal__2&file=kf_03_1949.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person is seen holding a dark item and moving it toward her hip/pocket area while turning away from the camera, consistent with the L1 conceal event indicating a pocket concealment at the hip. The multi-frame sequence shows the item disappearing from view near her body, suggesting unpaid concealment rather than normal browsing.","latency_ms":1657.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Multi-frame visual evidence shows the customer moving an item toward their hip pocket (consistent with the L1 conceal event subtype of pocket), hiding the item from view as part of a shoplifting-related concealment action.","latency_ms":2608.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with the trajectory evidence showing co-disappearance (item vanishes from visible hand into hip area) and high dwell ratio (0.8), strongly indicates concealment. The person’s posture and movement—reaching toward the hip while holding an item in the other hand, then turning away without placing it in a cart or basket—supports intent to hide unpaid merchandise. No payment or checkout is observed.","latency_ms":2693.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their pocket, which is consistent with concealment behavior. The L1 event 'conceal' further supports this inference.","latency_ms":1917.0}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting030_x264__C_1__conceal__1","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show a person in the foreground with a bag and hand near the hip area, consistent with hiding merchandise. While the visual evidence is not perfectly clear, the combination of the L1 conceal event and the observed posture supports concealment of unpaid merchandise.","latency_ms":1447.7,"agreement_hint":"keep_ok","center_ts":92.76666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__conceal__1&file=kf_00_91.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__conceal__1&file=kf_01_92.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__conceal__1&file=kf_02_93.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__conceal__1&file=kf_03_93.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show a person in the foreground with a bag and hand near the hip area, consistent with hiding merchandise. While the visual evidence is not perfectly clear, the combination of the L1 conceal event and the observed posture supports concealment of unpaid merchandise.","latency_ms":1447.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#1) is observed moving an item toward their hip pocket across sequential frames, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior indicating hiding an unpaid product rather than normal shopping activity.","latency_ms":3199.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view) and high model score (0.85), strongly indicates the person is concealing an item in their pocket or clothing. The multi-frame behavior shows them standing near the counter while making a motion consistent with hiding an item, and no payment is observed. This aligns with 'conceal_unpaid' per rules: concealment into body/pocket is confirmed by both visual context and L1 metadata.","latency_ms":3152.2},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item into their pocket, which is a clear act of concealment. This behavior aligns with the 'conceal' event type and indicates an intent to steal unpaid merchandise.","latency_ms":1637.5}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting030_x264__C_20__conceal__6","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show a person in a red top and dark pants near a display counter with a hand-to-hip motion consistent with hiding merchandise. While the visual evidence is not perfectly clear, the multi-frame behavior and L1 context support concealment.","latency_ms":1353.1,"agreement_hint":"keep_ok","center_ts":313.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_20__conceal__6&file=kf_00_312.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_20__conceal__6&file=kf_01_313.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_20__conceal__6&file=kf_02_313.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_20__conceal__6&file=kf_03_314.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show a person in a red top and dark pants near a display counter with a hand-to-hip motion consistent with hiding merchandise. While the visual evidence is not perfectly clear, the multi-frame behavior and L1 context support concealment.","latency_ms":1353.1},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the red shirt performs a sequence of actions consistent with concealing an unpaid item: they bend down near the shelf area, then move their hands toward their hip pocket (matching the L1 event's subtype of pocket concealment), with multi-frame behavior showing the action of hiding an item on their person rather than normal browsing or checkout.","latency_ms":2916.7},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly labels 'conceal' with subtype 'pocket' and zone 'hip', and the trajectory evidence shows high dwell ratio (0.833) and co-disappear (1.0), indicating the item was hidden on the person's body. The multi-frame behavior shows the customer in close proximity to a display, then moving away with no visible payment or cart placement, consistent with concealment intent. No checkout or return is observed.","latency_ms":2164.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their pocket, which is a clear act of concealment. This behavior aligns with the 'conceal_unpaid' label as it indicates an intent to hide merchandise without paying.","latency_ms":1882.9}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting030_x264__C_2__conceal__0","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"rationale":"The person in the red shirt is seen bending down and interacting with merchandise in a manner consistent with concealing items under clothing or in a bag, as indicated by the L1 event subtype 'under_clothes' and the visual evidence of the person's posture and actions across multiple frames.","latency_ms":1312.8,"agreement_hint":"keep_ok","center_ts":16.766666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_2__conceal__0&file=kf_00_15.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_2__conceal__0&file=kf_01_16.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_2__conceal__0&file=kf_02_17.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_2__conceal__0&file=kf_03_17.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the red shirt is seen bending down and interacting with merchandise in a manner consistent with concealing items under clothing or in a bag, as indicated by the L1 event subtype 'under_clothes' and the visual evidence of the person's posture and actions across multiple frames.","latency_ms":1312.8},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the red shirt is holding a product against their torso under their clothing, consistent with multi-frame behavior of concealing an unpaid item, matching the L1 conceal event subtype of under_clothes.","latency_ms":2999.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person (P#2, red top) is crouched near a display counter and appears to be placing an item under their clothing or into a hidden location, consistent with the L1 event 'conceal' and meta subtype 'under_clothes'. The posture, prolonged crouch, and lack of visible payment or return to shelf indicate intent to conceal unpaid merchandise. This matches the definition of 'conceal_unpaid' as hiding items on the body across multiple frames.","latency_ms":2525.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is crouched near the checkout counter, with their hands positioned in a way that suggests they are concealing an item under their clothing or in a hidden location. This behavior aligns with the 'under_clothes' concealment pattern indicated by the L1 event and visual evidence.","latency_ms":2537.9}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_10__conceal__3","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"rationale":"The L1 event indicates a concealment action under clothes, and the multi-frame sequence shows a person in the foreground with a white top and dark hair whose body orientation and hand movements are consistent with hiding an item near the waistband or under clothing while browsing. The concealment is not fully visible due to occlusion, but the behavior aligns with the L1 conceal hint and the trajectory evidence of item disappearance.","latency_ms":1794.2,"agreement_hint":"keep_ok","center_ts":41.56666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__conceal__3&file=kf_00_40.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__conceal__3&file=kf_01_41.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__conceal__3&file=kf_02_41.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__conceal__3&file=kf_03_42.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action under clothes, and the multi-frame sequence shows a person in the foreground with a white top and dark hair whose body orientation and hand movements are consistent with hiding an item near the waistband or under clothing while browsing. The concealment is not fully visible due to occlusion, but the behavior aligns with the L1 conceal hint and the trajectory evidence of item disappearance.","latency_ms":1794.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the white long-sleeve shirt repeatedly manipulates clothing near their torso, with multi-frame behavior showing actions consistent with hiding an item under their clothing, matching the L1 conceal event subtype of under_clothes.","latency_ms":3242.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high trajectory score (0.6678) + co_disappear=1.0 across 6 frames strongly indicates concealment under clothes. The person's posture (bending, hand near waist/hip area) and the context of being in a clothing store support intent to hide merchandise without payment. No visible checkout or return actions occur.","latency_ms":2858.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen picking up and examining clothing items, which is consistent with normal shopping behavior. There is no visible concealment of merchandise into a bag, pocket, or under clothes across the frames.","latency_ms":2072.5}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_29__conceal__5","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"rationale":"The L1 event indicates a concealment action under clothes, and the multi-frame sequence shows a person in the foreground handling merchandise near their waistline, consistent with hiding unpaid items.","latency_ms":1489.6,"agreement_hint":"keep_ok","center_ts":146.76666666666668,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__conceal__5&file=kf_00_145.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__conceal__5&file=kf_01_146.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__conceal__5&file=kf_02_147.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__conceal__5&file=kf_03_147.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action under clothes, and the multi-frame sequence shows a person in the foreground handling merchandise near their waistline, consistent with hiding unpaid items.","latency_ms":1489.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual with dark hair and white top is observed moving a clothing item toward their underclothes (midsection) across sequential frames, consistent with hiding an unpaid product under clothing, matching the L1 conceal event subtype of under_clothes.","latency_ms":2778.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 1.0) indicates the person likely concealed an item under clothing. The person’s posture—bending slightly, hand near waist/hip area, and holding a bag while standing close to others—supports concealment intent. No visual of the item being placed in a bag or pocket is seen, but the multi-frame behavior (dwell, co-disappear, and lack of visible re-emergence) strongly suggests unpaid concealment. This aligns with the rule that only steal/conceal_unpaid when visuals show concealment into bag/pocket/clothes or clear multi-frame hiding intent.","latency_ms":3463.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item under their clothing, which is consistent with concealment behavior. This action aligns with the L1 event 'conceal' and indicates an intent to hide unpaid merchandise.","latency_ms":1618.3}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_3__conceal__13","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the multi-frame sequence shows the person handling merchandise in a manner consistent with hiding it on their body rather than browsing or checking out.","latency_ms":1564.4,"agreement_hint":"keep_ok","center_ts":485.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_3__conceal__13&file=kf_00_484.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_3__conceal__13&file=kf_01_484.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_3__conceal__13&file=kf_02_485.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_3__conceal__13&file=kf_03_486.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the multi-frame sequence shows the person handling merchandise in a manner consistent with hiding it on their body rather than browsing or checking out.","latency_ms":1564.4},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the white top is observed moving a purple garment from a display rack and concealing it under their outer clothing at their hip, consistent with the L1 conceal event subtype of pocket/hip concealment, with multi-frame behavior showing the garment being hidden on their body rather than normal shopping activity.","latency_ms":3162.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' at hip level, and the trajectory analysis shows co-disappearance (item vanishes from view after interaction), dwell ratio of 1.0, and high model score (0.85). The person's behavior across frames shows them interacting with merchandise near the hip area, consistent with hiding an item in a pocket or under clothing, without placing it in a visible cart or basket. This aligns with 'conceal_unpaid' as defined: hiding product on the body with clear intent to avoid payment.","latency_ms":2901.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen picking up a purple garment and placing it into their bag, which aligns with the 'conceal' L1 event indicating intent to hide unpaid merchandise. The behavior across frames shows clear concealment into the bag.","latency_ms":2400.8}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_40__conceal__10","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the multi-frame sequence shows a person in the foreground interacting with merchandise in a manner consistent with hiding an item on their body.","latency_ms":1416.7,"agreement_hint":"keep_ok","center_ts":396.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_40__conceal__10&file=kf_00_395.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_40__conceal__10&file=kf_01_396.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_40__conceal__10&file=kf_02_396.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_40__conceal__10&file=kf_03_397.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the multi-frame sequence shows a person in the foreground interacting with merchandise in a manner consistent with hiding an item on their body.","latency_ms":1416.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#40) is observed over multiple frames moving an item toward their hip pocket (consistent with the L1 conceal event subtype of pocket), with multi-frame behavior showing intent to hide the item on their body rather than browse or checkout.","latency_ms":3646.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after interaction) and high model score (0.85), strongly indicates the person concealed an item in their pocket or clothing. The multi-frame behavior shows them interacting with merchandise near the hip area, consistent with hiding an unpaid item. No visual of payment or return to shelf is observed.","latency_ms":2528.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item into a bag or pocket area near their hip, consistent with concealment behavior. This action aligns with the L1 event 'conceal' and is supported by visual evidence across multiple frames.","latency_ms":2239.8}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_48__conceal__11","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The keyframes show a woman in a white top and blue jeans moving through the store and then reaching toward her waistband/hip area in a manner consistent with concealing an item, matching the L1 conceal event (subtype: pocket, zone: hip). The multi-frame sequence captures the concealment motion rather than mere browsing.","latency_ms":1557.5,"agreement_hint":"keep_ok","center_ts":439.96666666666664,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__conceal__11&file=kf_00_438.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__conceal__11&file=kf_01_439.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__conceal__11&file=kf_02_440.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__conceal__11&file=kf_03_441.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The keyframes show a woman in a white top and blue jeans moving through the store and then reaching toward her waistband/hip area in a manner consistent with concealing an item, matching the L1 conceal event (subtype: pocket, zone: hip). The multi-frame sequence captures the concealment motion rather than mere browsing.","latency_ms":1557.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#48) is observed over multiple frames moving their hand toward their hip pocket (per L1 event subtype: pocket, zone: hip) while handling clothing, consistent with hiding an unpaid item on their person, matching the conceal_unpaid criteria of hiding merchandise in a pocket/on the body.","latency_ms":4239.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with high trajectory score (0.7429) and co-disappear signal (1.0), indicates the person likely concealed an item in their hip/pocket area. The person's body language—hand moving toward the hip area while walking away from the rack—and the context of being in a clothing store support this. No visual evidence shows the item being placed in a bag or returned to a shelf, and the risk score is low but the meta data strongly suggests concealment intent. This aligns with 'conceal_unpaid' as defined: hiding merchandise on the body without payment.","latency_ms":3013.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their front pocket, which is a clear act of concealment. This behavior aligns with the 'conceal_unpaid' label as it indicates an intent to hide merchandise without paying.","latency_ms":2743.8}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_4__conceal__0","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"rationale":"The keyframes show a person in the center of the frame with a dark shoulder bag. Across the sequence, they appear to be interacting with merchandise while their body and bag are positioned in a way that suggests concealing an item, consistent with the L1 conceal event (subtype: pocket, zone: hip). The multi-frame behavior indicates hiding intent rather than normal browsing.","latency_ms":2055.5,"agreement_hint":"keep_ok","center_ts":5.566666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__conceal__0&file=kf_00_4.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__conceal__0&file=kf_01_5.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__conceal__0&file=kf_02_5.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__conceal__0&file=kf_03_6.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The keyframes show a person in the center of the frame with a dark shoulder bag. Across the sequence, they appear to be interacting with merchandise while their body and bag are positioned in a way that suggests concealing an item, consistent with the L1 conceal event (subtype: pocket, zone: hip). The multi-frame behavior indicates hiding intent rather than normal browsing.","latency_ms":2055.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual is observed moving an item toward their hip pocket across sequential frames, consistent with hiding an unpaid item on their person, matching the L1 conceal event subtype of pocket concealment.","latency_ms":2411.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view) and high score (0.6748), indicates the person is hiding an item on their person. The multi-frame behavior shows the individual moving with a bag or item near their hip, consistent with concealment into pocket or under clothing. No payment or return to shelf is observed, supporting unpaid concealment intent.","latency_ms":2614.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their waistband/pocket area, consistent with concealing unpaid merchandise. This behavior aligns with the 'conceal' L1 event and is supported by visual evidence across multiple frames.","latency_ms":1860.6}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_5__conceal__6","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the multi-frame sequence shows a person handling merchandise in a manner consistent with hiding it on their body rather than openly carrying it.","latency_ms":1825.5,"agreement_hint":"keep_ok","center_ts":148.76666666666668,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__conceal__6&file=kf_00_147.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__conceal__6&file=kf_01_148.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__conceal__6&file=kf_02_149.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__conceal__6&file=kf_03_149.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the multi-frame sequence shows a person handling merchandise in a manner consistent with hiding it on their body rather than openly carrying it.","latency_ms":1825.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#5) is holding multiple garments and moving toward their hip pocket (per L1 event subtype 'pocket'), with multi-frame behavior showing the action of positioning items to conceal them on their person, consistent with hiding unpaid merchandise.","latency_ms":3190.3},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' at hip zone, and the trajectory analysis shows co-disappear (item vanishes from view after interaction) with high score (0.65) and 100% dwell ratio. The person's posture and hand motion toward the hip area across multiple frames suggest hiding an item in a pocket or waistband, consistent with concealment intent. No payment or return to shelf is observed.","latency_ms":2657.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is seen picking up and examining clothing items, placing them into a shopping basket, and interacting with the merchandise in a manner consistent with normal shopping behavior. There is no visible concealment of unpaid items into bags, pockets, or under clothes.","latency_ms":2064.0}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_87__conceal__16","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The person is seen moving through the store and placing an item into a bag/pocket area at the hip, consistent with concealment behavior across multiple frames.","latency_ms":1467.7,"agreement_hint":"keep_ok","center_ts":807.5666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__conceal__16&file=kf_00_806.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__conceal__16&file=kf_01_807.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__conceal__16&file=kf_02_807.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__conceal__16&file=kf_03_808.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The person is seen moving through the store and placing an item into a bag/pocket area at the hip, consistent with concealment behavior across multiple frames.","latency_ms":1467.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Multi-frame visual evidence shows the customer moving an item toward her hip pocket (consistent with the L1 conceal event subtype of pocket), with trajectory and model score supporting hiding an unpaid product on her person rather than normal shopping actions.","latency_ms":3366.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (1.0) and high model score (0.85), indicates the person likely concealed an item in their pocket or waist area. The person's posture and movement near the clothing racks, along with the absence of the item in visible hands or cart, support concealment intent rather than browsing or checkout. No payment is observed, and the risk score is low but not zero, suggesting the act may be subtle but still identifiable as concealment.","latency_ms":2807.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item into her bag, which is consistent with concealment behavior. The L1 event 'conceal' further supports this inference, as it indicates a potential attempt to hide unpaid merchandise.","latency_ms":2311.6}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting040_x264__C_8__conceal__2","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"rationale":"The L1 event indicates a conceal action at the hip/pocket with a high model score, and the keyframes show the person in the act of handling merchandise near their body in a manner consistent with concealment. While the visual evidence is not perfectly clear, the combination of the L1 event and the observed behavior supports a concealment determination.","latency_ms":1217.7,"agreement_hint":"keep_ok","center_ts":25.966666666666665,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__conceal__2&file=kf_00_24.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__conceal__2&file=kf_01_25.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__conceal__2&file=kf_02_26.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__conceal__2&file=kf_03_27.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a conceal action at the hip/pocket with a high model score, and the keyframes show the person in the act of handling merchandise near their body in a manner consistent with concealment. While the visual evidence is not perfectly clear, the combination of the L1 event and the observed behavior supports a concealment determination.","latency_ms":1217.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#8) is observed over multiple frames moving an item toward their hip pocket, consistent with the L1 conceal event subtype of pocket concealment, showing multi-frame behavior of hiding an unpaid item on their person.","latency_ms":3069.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view) and high model score (0.85), strongly indicates the person is concealing an item in their pocket or clothing. The multi-frame behavior shows the person holding items while moving toward the hip area, consistent with hiding merchandise without payment. This aligns with the definition of 'conceal_unpaid' — hiding a product on the body — not just browsing.","latency_ms":3059.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen making a deliberate motion to conceal an item into their pocket, consistent with shoplifting behavior. The L1 event 'conceal' further supports this inference.","latency_ms":2068.8}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting041_x264__C_13__conceal__6","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"rationale":"The L1 event indicates a conceal action at the hip/pocket with a model score of 0.85, and the keyframes show a person in a maroon outfit standing near a counter with items, consistent with hiding merchandise on the body.","latency_ms":3158.5,"agreement_hint":"keep_ok","center_ts":360.76666666666665,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__conceal__6&file=kf_00_359.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__conceal__6&file=kf_01_360.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__conceal__6&file=kf_02_361.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__conceal__6&file=kf_03_361.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a conceal action at the hip/pocket with a model score of 0.85, and the keyframes show a person in a maroon outfit standing near a counter with items, consistent with hiding merchandise on the body.","latency_ms":3158.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The woman in the maroon sari is seen moving an item toward her hip pocket across sequential frames, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior showing intent to hide the unpaid item on her person.","latency_ms":2422.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after approach) and high model score (0.85), strongly suggests the person concealed an item in their pocket or clothing. The multi-frame behavior shows the person standing near the counter, then turning away while holding something near their hip area—consistent with hiding merchandise. No payment is observed, and no clear return to shelf or cart placement occurs. This meets the criteria for 'conceal_unpaid' as defined: hiding product on body without visible payment intent.","latency_ms":3111.4},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is standing at a checkout counter with items placed on the counter, indicating they are in the process of paying for their purchases. There is no evidence of concealment or hiding of merchandise.","latency_ms":1692.1}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"ucf_theft__Shoplifting041_x264__C_3__conceal__1","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show a person in a pink outfit with a white bag near the hip area, consistent with hiding merchandise. While the visual evidence is not perfectly clear, the multi-frame behavior and L1 hint support concealment.","latency_ms":1554.3,"agreement_hint":"keep_ok","center_ts":24.766666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_3__conceal__1&file=kf_00_23.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_3__conceal__1&file=kf_01_24.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_3__conceal__1&file=kf_02_25.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_3__conceal__1&file=kf_03_25.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show a person in a pink outfit with a white bag near the hip area, consistent with hiding merchandise. While the visual evidence is not perfectly clear, the multi-frame behavior and L1 hint support concealment.","latency_ms":1554.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#3) is observed moving an item toward their hip pocket across sequential frames, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior indicating hiding an unpaid product rather than normal shopping actions.","latency_ms":2842.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (product vanishes from view after interaction) and high model score (0.85), strongly indicates the person concealed an item in their pocket or clothing. The multi-frame behavior shows the individual interacting with shelves, then moving away with no visible payment, supporting concealment intent. No clear checkout or return to shelf is observed.","latency_ms":2451.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen reaching up to a high shelf and appears to be placing an item into her pocket or bag, consistent with concealment behavior. This action aligns with the L1 event 'conceal' and suggests intent to shoplift.","latency_ms":2691.1}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"zenodo_theft__main220_Trim5__C_1__conceal__0","clip_id":"zenodo_theft__main220_Trim5","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"rationale":"The person is seen holding a shopping basket while reaching toward the shelf, and the L1 event indicates a concealment action into a pocket at the hip. The multi-frame sequence shows the person moving through the aisle with the basket, consistent with hiding merchandise rather than normal browsing or checkout.","latency_ms":1373.9,"agreement_hint":"keep_ok","center_ts":1.5666666666666667,"corpus":"zenodo","media_url":null,"playable":false,"keyframe_urls":["/api/path1_case_keyframe?case_id=zenodo_theft__main220_Trim5__C_1__conceal__0&file=kf_00_0.43s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main220_Trim5__C_1__conceal__0&file=kf_01_1.20s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main220_Trim5__C_1__conceal__0&file=kf_02_1.93s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main220_Trim5__C_1__conceal__0&file=kf_03_2.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person is seen holding a shopping basket while reaching toward the shelf, and the L1 event indicates a concealment action into a pocket at the hip. The multi-frame sequence shows the person moving through the aisle with the basket, consistent with hiding merchandise rather than normal browsing or checkout.","latency_ms":1373.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer is seen moving an item from the shelf toward his hip pocket (as indicated by L1 conceal event subtype pocket) across sequential frames, hiding the item from view rather than placing it into the shopping basket, consistent with concealing unpaid merchandise.","latency_ms":2790.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' and zone 'hip', supported by trajectory evidence showing co-disappearance (item vanishes from view after interaction) and high model score (0.85). Visually, the person picks up an item (frame 1), then in subsequent frames (2–4) walks away while holding the basket but also appears to have the item tucked into their pocket or waist area—consistent with concealment behavior. No visible placement into cart/basket or return to shelf occurs; no checkout is seen. This meets the criteria for 'conceal_unpaid' as defined: hiding product on body with multi-frame intent, not just a single grab.","latency_ms":3486.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is holding a shopping basket and examining products on the shelves, consistent with normal shopping behavior. There is no visible concealment of merchandise into a bag, pocket, or under clothing across the frames.","latency_ms":2492.2}]},{"kind":"keep_ok","profile":"deepseek_flash","model":"deepseek-v4-flash","case_id":"zenodo_theft__main303_Trim1__C_1__conceal__0","clip_id":"zenodo_theft__main303_Trim1","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The sequence of frames shows the person holding a black backpack open in front of their torso while manipulating an item near the bag's opening, consistent with concealing merchandise. The L1 event subtype 'under_clothes' and model score support this, and the multi-frame behavior indicates hiding intent rather than normal browsing.","latency_ms":1689.5,"agreement_hint":"keep_ok","center_ts":1.5666666666666667,"corpus":"zenodo","media_url":null,"playable":false,"keyframe_urls":["/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__conceal__0&file=kf_00_0.43s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__conceal__0&file=kf_01_1.20s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__conceal__0&file=kf_02_1.93s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__conceal__0&file=kf_03_2.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The sequence of frames shows the person holding a black backpack open in front of their torso while manipulating an item near the bag's opening, consistent with concealing merchandise. The L1 event subtype 'under_clothes' and model score support this, and the multi-frame behavior indicates hiding intent rather than normal browsing.","latency_ms":1689.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the individual adjusts a large black bag while in the snack aisle, with L1 event data indicating concealment under clothes (consistent with hiding unpaid merchandise). The multi-frame behavior shows intentional manipulation of the bag to hide items, matching the conceal_unpaid label criteria.","latency_ms":3569.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) is supported by visual evidence: the person repeatedly reaches toward the right side of their body while holding a large black bag, then later walks forward with the bag held close to their torso—consistent with hiding an item under clothing or in the bag. The trajectory analysis shows co-disappear (1.0) and dwell ratio 1.0, indicating sustained focus on concealment behavior. No visible payment or return actions occur; no items are placed in cart or basket. This aligns with 'conceal_unpaid' per rules: multi-frame intent to hide unpaid merchandise, not just browsing.","latency_ms":3224.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen walking through the aisle while adjusting a backpack, which aligns with the L1 event 'conceal' indicating potential concealment of unpaid merchandise. The behavior suggests an intent to hide items on their person.","latency_ms":2615.3}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"dcsass__demo_dcsass_03__C_2__conceal__0","clip_id":"dcsass__demo_dcsass_03","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Multi-frame visual evidence shows a customer (person P#2) moving an item toward their hip pocket, consistent with the L1 conceal event subtype of pocket concealment, indicating hiding an unpaid product on their body.","latency_ms":2886.6,"agreement_hint":"keep_ok","center_ts":1.9666666666666666,"corpus":"demo","media_url":"/api/media/sample/demo_dcsass_03.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=dcsass__demo_dcsass_03__C_2__conceal__0&file=kf_00_0.83s.jpg","/api/path1_case_keyframe?case_id=dcsass__demo_dcsass_03__C_2__conceal__0&file=kf_01_1.60s.jpg","/api/path1_case_keyframe?case_id=dcsass__demo_dcsass_03__C_2__conceal__0&file=kf_02_2.33s.jpg","/api/path1_case_keyframe?case_id=dcsass__demo_dcsass_03__C_2__conceal__0&file=kf_03_2.97s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The L1 event suggests a concealment into a pocket at the hip, but the provided keyframes are too blurry and low-resolution to visually confirm any item being hidden. The person in the blue cap is seen handling something near their chest/waist, but without clear visual evidence of the item or the concealment action, a definitive label cannot be assigned.","latency_ms":1409.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Multi-frame visual evidence shows a customer (person P#2) moving an item toward their hip pocket, consistent with the L1 conceal event subtype of pocket concealment, indicating hiding an unpaid product on their body.","latency_ms":2886.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with the trajectory evidence showing co-disappearance (item vanishes from view after approach) and high dwell ratio (0.833), strongly suggests the person is concealing an item in their pocket or clothing. The person's hand movements near the hip area across multiple frames (13:09:17–13:09:19) are consistent with hiding merchandise, and the risk score, though low, aligns with this behavior. No visual of payment or return to shelf occurs, and the action is not typical browsing.","latency_ms":3145.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen making a deliberate motion consistent with concealing an item into their pocket or clothing, as indicated by the L1 event 'conceal' and supported by the visual evidence of their hand positioning near their hip area.","latency_ms":2629.2}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting012_x264__C_16__conceal__5","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event indicates a conceal event under clothes, with model score 0.85, and multi-frame behavior aligns with hiding merchandise on the person's body, matching the conceal_unpaid label criteria.","latency_ms":2964.0,"agreement_hint":"keep_ok","center_ts":441.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_16__conceal__5&file=kf_00_440.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_16__conceal__5&file=kf_01_440.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_16__conceal__5&file=kf_02_441.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_16__conceal__5&file=kf_03_442.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.4,"agreement_hint":"uncertain","rationale":"The keyframes show a person seated at a counter handling fabric and interacting with another person, but no clear concealment into a bag, pocket, or under clothes is visible across the frames. The L1 conceal hint is not corroborated by obvious visual evidence in these images.","latency_ms":1179.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a conceal event under clothes, with model score 0.85, and multi-frame behavior aligns with hiding merchandise on the person's body, matching the conceal_unpaid label criteria.","latency_ms":2964.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 0.833) indicates the person likely concealed an item under their clothes. The person is seated at a table with fabrics, and their posture and arm movement suggest hiding something—consistent with concealment intent. No payment or visible return to shelf occurs; no clear checkout action. This matches 'conceal_unpaid' per rules: multi-frame hiding behavior, not just browsing.","latency_ms":3244.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is engaged in a transaction at the checkout counter, handling items on the table and interacting with the cashier. There is no evidence of concealment or hiding of merchandise.","latency_ms":1807.7}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting012_x264__C_20__conceal__4","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual in the yellow top interacts with merchandise across multiple frames, with L1 event indicating concealment in a hip pocket; multi-frame behavior shows handling of goods consistent with hiding unpaid items, matching the conceal_unpaid criteria.","latency_ms":3008.9,"agreement_hint":"keep_ok","center_ts":417.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_20__conceal__4&file=kf_00_416.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_20__conceal__4&file=kf_01_416.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_20__conceal__4&file=kf_02_417.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_20__conceal__4&file=kf_03_418.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a model score of 0.85, and the keyframes show the person in an orange top interacting with merchandise at a display table. While the exact concealment is not perfectly clear in the low-resolution frames, the multi-frame behavior and L1 evidence suggest the person is hiding unpaid merchandise on their body.","latency_ms":1494.8},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the yellow top interacts with merchandise across multiple frames, with L1 event indicating concealment in a hip pocket; multi-frame behavior shows handling of goods consistent with hiding unpaid items, matching the conceal_unpaid criteria.","latency_ms":3008.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after interaction) and high model score (0.85), strongly indicates the person is concealing merchandise in their pocket or clothing. The multi-frame behavior shows them handling fabric items near the counter, then moving with a posture suggesting hidden placement—consistent with shoplifting intent. No payment or visible return to shelf occurs.","latency_ms":2698.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing a large, patterned fabric item into their bag or pocket area near the checkout counter, consistent with concealment behavior. The surrounding context of other shoppers and staff does not contradict this intent.","latency_ms":2191.8}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting012_x264__C_21__conceal__6","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event indicates a concealment event in the hip pocket zone, with supporting trajectory evidence, and multi-frame behavior aligns with hiding an unpaid item on the person’s body, matching the conceal_unpaid label criteria.","latency_ms":3062.4,"agreement_hint":"keep_ok","center_ts":489.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_21__conceal__6&file=kf_00_488.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_21__conceal__6&file=kf_01_488.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_21__conceal__6&file=kf_02_489.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_21__conceal__6&file=kf_03_490.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the yellow and black top is seen handling merchandise at the table and then moving her hands toward her hip/pocket area, consistent with the L1 conceal event (subtype pocket, zone hip). The multi-frame sequence shows her interacting with items and then concealing them on her body rather than carrying them visibly or placing them in a cart.","latency_ms":1443.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment event in the hip pocket zone, with supporting trajectory evidence, and multi-frame behavior aligns with hiding an unpaid item on the person’s body, matching the conceal_unpaid label criteria.","latency_ms":3062.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappearance (item vanishes from view after interaction) and high model score (0.85), strongly suggests the person is concealing an item in their pocket or clothing. The multi-frame behavior shows the individual standing near a large fabric display, interacting closely with it, and maintaining a posture consistent with hiding something at the hip. No payment or visible placement into a cart occurs; no clear return to shelf. This aligns with 'conceal_unpaid' per rules: concealment into pocket/clothes inferred across frames, not just a single grab.","latency_ms":3355.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is examining a large piece of fabric on a table, which is consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or under clothing, and the actions across the frames suggest she is inspecting the item rather than attempting to steal it.","latency_ms":2522.6}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting012_x264__C_34__conceal__8","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The male individual in the white shirt is observed moving his hand toward his hip pocket (consistent with the L1 event's subtype of pocket concealment) across sequential frames, with multi-frame behavior indicating an action to hide an unpaid item in his clothing pocket, matching the conceal_unpaid definition.","latency_ms":3128.7,"agreement_hint":"keep_ok","center_ts":659.9666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_34__conceal__8&file=kf_00_658.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_34__conceal__8&file=kf_01_659.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_34__conceal__8&file=kf_02_660.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_34__conceal__8&file=kf_03_661.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The L1 event suggests a concealment into a pocket at the hip, but the provided keyframes do not clearly show a person concealing unpaid merchandise. The frames show a shop setting with people browsing and a person seated, but no visible act of hiding an item into clothing or a bag is evident. Without clear visual confirmation of concealment, the label is uncertain.","latency_ms":1560.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The male individual in the white shirt is observed moving his hand toward his hip pocket (consistent with the L1 event's subtype of pocket concealment) across sequential frames, with multi-frame behavior indicating an action to hide an unpaid item in his clothing pocket, matching the conceal_unpaid definition.","latency_ms":3128.7},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (1.0) and dwell ratio 1.0 across 4 frames, indicates the person likely concealed an item in their pocket or waist area. The person is seated near a table with merchandise, and the timing and behavior align with hiding an item without payment. No visual of the actual concealment is seen, but the multi-frame pattern and high model score (0.85) support this inference.","latency_ms":2752.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item into their pocket (as indicated by the L1 event 'conceal' and visual evidence of hand movement toward the hip area), which constitutes hiding unpaid merchandise on their body.","latency_ms":2347.1}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting012_x264__C_3__conceal__1","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The customer is observed manipulating a large golden fabric item, tucking it under their clothing (consistent with the L1 event subtype 'under_clothes') across consecutive frames, showing clear intent to conceal an unpaid product rather than normal shopping activity.","latency_ms":3036.2,"agreement_hint":"keep_ok","center_ts":174.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_3__conceal__1&file=kf_00_173.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_3__conceal__1&file=kf_01_174.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_3__conceal__1&file=kf_02_174.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_3__conceal__1&file=kf_03_175.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the yellow top is seen handling merchandise at the display table and then making movements consistent with tucking or hiding an item under their clothing, matching the L1 conceal event subtype 'under_clothes'.","latency_ms":1282.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer is observed manipulating a large golden fabric item, tucking it under their clothing (consistent with the L1 event subtype 'under_clothes') across consecutive frames, showing clear intent to conceal an unpaid product rather than normal shopping activity.","latency_ms":3036.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 1.0) indicates the person likely concealed an item under their clothes. The person is standing near the counter with a large fabric item being handled by another person, but the keyframe sequence shows no visible payment or return to shelf; instead, the concealment pattern aligns with shoplifting intent. No clear visual of the item being hidden in this specific frame set, but the L1 context strongly supports concealment intent across frames.","latency_ms":3073.4},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is standing at a checkout counter with a large item spread out on the counter, appearing to be in the process of paying or completing a transaction. There is no evidence of concealment or hiding of merchandise.","latency_ms":2250.0}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting012_x264__C_5__conceal__0","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Across sequential frames, the person in the white shirt moves a yellow product from the counter and conceals it under their clothing (pants/waist area), matching the L1 conceal event subtype of under_clothes, with multi-frame behavior showing the product being hidden rather than normal shopping or checkout.","latency_ms":3269.6,"agreement_hint":"keep_ok","center_ts":101.96666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_5__conceal__0&file=kf_00_100.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_5__conceal__0&file=kf_01_101.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_5__conceal__0&file=kf_02_102.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_5__conceal__0&file=kf_03_103.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the yellow top is seen seated and repeatedly interacting with an item near their lap/waist area, with the L1 event indicating concealment under clothes. Across the frames, the item is no longer visible on the table or in hand, suggesting it was hidden on the body.","latency_ms":1400.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the person in the white shirt moves a yellow product from the counter and conceals it under their clothing (pants/waist area), matching the L1 conceal event subtype of under_clothes, with multi-frame behavior showing the product being hidden rather than normal shopping or checkout.","latency_ms":3269.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'under_clothes', and the visual sequence shows the customer (C#5, P#5) sitting at the counter while the staff member is distracted; the customer's hand is near their waist/hip area where a yellow item (likely the concealed product) is later seen in the staff member's hand. The trajectory evidence indicates 'below_threshold' and 'co_disappear', consistent with hiding an item under clothes. No payment occurs, and the item is not placed in a visible cart or basket. This meets the criteria for 'conceal_unpaid' as it involves hiding merchandise on the body without intent to pay.","latency_ms":4061.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is seated at a table in what appears to be a restaurant or dining area, interacting with another person who seems to be an employee or server. There is no evidence of concealment, hiding, or shoplifting intent. The behavior is consistent with normal dining and checkout activities.","latency_ms":2111.1}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting012_x264__C_6__conceal__2","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The customer (C#6) is observed over multiple frames moving an item toward their hip pocket, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior showing the item being hidden in their clothing pocket.","latency_ms":3468.0,"agreement_hint":"keep_ok","center_ts":199.16666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_6__conceal__2&file=kf_00_198.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_6__conceal__2&file=kf_01_198.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_6__conceal__2&file=kf_02_199.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_6__conceal__2&file=kf_03_200.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the yellow top is seen handling merchandise at the display table and then moving their hands toward their hip/pocket area in a manner consistent with concealing an item, matching the L1 conceal event with pocket/hip subtype.","latency_ms":1571.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer (C#6) is observed over multiple frames moving an item toward their hip pocket, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior showing the item being hidden in their clothing pocket.","latency_ms":3468.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after interaction) and high model score (0.85), strongly indicates the customer is concealing an item in their pocket or clothing. The person's posture and hand movements near the hip area across frames support this, especially since they are not placing the item in a visible cart or basket. No payment is observed, and the context suggests intent to steal rather than browse.","latency_ms":3213.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is standing at a checkout counter with merchandise laid out on the table, appearing to be in the process of paying or completing a transaction. There is no visible concealment of items into bags, pockets, or under clothing, and the behavior aligns with normal checkout procedures.","latency_ms":2099.4}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting012_x264__C_9__conceal__3","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 conceal event with subtype 'pocket' (hip zone) aligns with multi-frame visual context of the individual's actions, showing behavior consistent with hiding an unpaid item on their person, matching the conceal_unpaid label criteria.","latency_ms":2285.2,"agreement_hint":"keep_ok","center_ts":232.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_9__conceal__3&file=kf_00_231.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_9__conceal__3&file=kf_01_232.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_9__conceal__3&file=kf_02_232.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_9__conceal__3&file=kf_03_233.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The keyframes show a person in a yellow top seated at a counter with another person standing nearby, appearing to handle items on the counter. No clear concealment into a bag, pocket, or clothing is visible across the frames, and the L1 conceal event is not corroborated by obvious visual evidence.","latency_ms":1216.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 conceal event with subtype 'pocket' (hip zone) aligns with multi-frame visual context of the individual's actions, showing behavior consistent with hiding an unpaid item on their person, matching the conceal_unpaid label criteria.","latency_ms":2285.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after interaction) and high model score (0.85), strongly indicates the person is concealing an item in their pocket or clothing. The multi-frame behavior shows them leaning over the table, interacting with items, then a clear disappearance of the item from visible space—consistent with concealment rather than browsing or checkout. No payment or return to shelf is observed.","latency_ms":2880.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The individual is seated at a counter, interacting with a salesperson who appears to be processing a transaction. There are no visible signs of concealment or hiding of merchandise, and the behavior aligns with a normal checkout process.","latency_ms":2280.8}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting014_x264__C_1__conceal__1","clip_id":"ucf_theft__Shoplifting014_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual in the patterned top and red pants is observed moving an item from the shelf area toward their hip pocket across consecutive frames, matching the L1 conceal event subtype of pocket concealment, with visual evidence of hiding an unpaid product on their person.","latency_ms":2729.4,"agreement_hint":"keep_ok","center_ts":754.7666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting014_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_1__conceal__1&file=kf_00_753.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_1__conceal__1&file=kf_01_754.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_1__conceal__1&file=kf_02_755.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_1__conceal__1&file=kf_03_755.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the orange outfit is seen moving through the store and appears to be concealing an item under her clothing or in a bag, consistent with the L1 conceal event indicating a pocket/hip concealment.","latency_ms":1336.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the patterned top and red pants is observed moving an item from the shelf area toward their hip pocket across consecutive frames, matching the L1 conceal event subtype of pocket concealment, with visual evidence of hiding an unpaid product on their person.","latency_ms":2729.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' and zone 'hip', and the visual sequence shows the person (in red/orange attire) turning away from the shelf, bringing their hands toward their hip area while holding a dark item, consistent with pocketing or concealing merchandise under clothing. The multi-frame behavior supports concealment intent rather than browsing or checkout. No payment is observed, and the risk score, though low, aligns with the visual evidence of hiding an item on the body.","latency_ms":2899.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their pocket or waistband area, which is consistent with concealment behavior. This action, combined with the L1 event 'conceal' and the visual evidence of the item being hidden on the body, strongly suggests intent to steal unpaid merchandise.","latency_ms":1722.4}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting014_x264__C_4__conceal__0","clip_id":"ucf_theft__Shoplifting014_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The customer interacts with clothing on a rack, and multi-frame behavior shows an action consistent with hiding an item under her clothing (matching the L1 conceal event subtype of under_clothes), with no visible payment action or return to shelf for the item, indicating concealment of unpaid merchandise.","latency_ms":3259.8,"agreement_hint":"keep_ok","center_ts":87.96666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting014_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_4__conceal__0&file=kf_00_86.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_4__conceal__0&file=kf_01_87.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_4__conceal__0&file=kf_02_88.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_4__conceal__0&file=kf_03_89.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The person in red is seen handling merchandise near a rack and then turning away while adjusting her clothing, consistent with concealing an item under her clothes. The L1 event 'conceal' with subtype 'under_clothes' and high model score supports this, and the multi-frame sequence shows a clear hiding action rather than normal browsing.","latency_ms":1563.0},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer interacts with clothing on a rack, and multi-frame behavior shows an action consistent with hiding an item under her clothing (matching the L1 conceal event subtype of under_clothes), with no visible payment action or return to shelf for the item, indicating concealment of unpaid merchandise.","latency_ms":3259.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 0.6667) indicates the person likely concealed an item under clothing. In the frames, the person is seen adjusting her headscarf/face area while holding a garment, which aligns with hiding an item under clothes — a classic shoplifting tactic. No payment or return to shelf is observed, and the behavior is inconsistent with normal browsing.","latency_ms":2715.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item under their clothing, which is consistent with concealment behavior. The L1 event 'conceal' further supports this inference.","latency_ms":2596.6}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting014_x264__C_77__conceal__2","clip_id":"ucf_theft__Shoplifting014_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Multi-frame visual evidence shows the customer moving an item toward their hip pocket (consistent with the L1 conceal event subtype of pocket), hiding the item from view as part of a shoplifting-related concealment action.","latency_ms":2608.4,"agreement_hint":"keep_ok","center_ts":1947.9666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting014_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_77__conceal__2&file=kf_00_1946.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_77__conceal__2&file=kf_01_1947.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_77__conceal__2&file=kf_02_1948.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_77__conceal__2&file=kf_03_1949.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person is seen holding a dark item and moving it toward her hip/pocket area while turning away from the camera, consistent with the L1 conceal event indicating a pocket concealment at the hip. The multi-frame sequence shows the item disappearing from view near her body, suggesting unpaid concealment rather than normal browsing.","latency_ms":1657.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Multi-frame visual evidence shows the customer moving an item toward their hip pocket (consistent with the L1 conceal event subtype of pocket), hiding the item from view as part of a shoplifting-related concealment action.","latency_ms":2608.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with the trajectory evidence showing co-disappearance (item vanishes from visible hand into hip area) and high dwell ratio (0.8), strongly indicates concealment. The person’s posture and movement—reaching toward the hip while holding an item in the other hand, then turning away without placing it in a cart or basket—supports intent to hide unpaid merchandise. No payment or checkout is observed.","latency_ms":2693.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their pocket, which is consistent with concealment behavior. The L1 event 'conceal' further supports this inference.","latency_ms":1917.0}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting030_x264__C_10__conceal__5","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual (P#10) is observed moving an item toward their hip pocket across sequential frames, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior consistent with hiding an unpaid product.","latency_ms":2425.9,"agreement_hint":"keep_ok","center_ts":222.76666666666668,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_10__conceal__5&file=kf_00_221.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_10__conceal__5&file=kf_01_222.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_10__conceal__5&file=kf_02_223.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_10__conceal__5&file=kf_03_223.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.4,"agreement_hint":"uncertain","rationale":"The overhead frames show multiple shoppers near a display counter, but no clear concealment into a pocket, bag, or clothing is visible. The L1 conceal hint is not sufficiently supported by the visuals, so the action cannot be confirmed.","latency_ms":1275.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#10) is observed moving an item toward their hip pocket across sequential frames, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior consistent with hiding an unpaid product.","latency_ms":2425.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (1.0) and high dwell ratio (0.833), indicates the person likely concealed an item in their pocket or waist area. The person’s posture and hand movement near the hip area across multiple frames support this, and the risk score is low but the visual trajectory pattern strongly suggests concealment rather than normal browsing. No payment or return to shelf is observed.","latency_ms":3096.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their backpack, which is a clear act of concealing unpaid merchandise. This behavior aligns with the 'conceal_unpaid' label as it involves hiding an item on their person without proceeding to checkout.","latency_ms":2385.8}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting030_x264__C_11__1","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual in the sleeveless patterned top moves an item from the shelf into their brown bag across sequential frames, hiding the product in the bag rather than placing it visibly for checkout or return, matching the definition of concealing unpaid merchandise.","latency_ms":3074.1,"agreement_hint":"keep_ok","center_ts":203.16666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__1&file=kf_00_202.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__1&file=kf_01_202.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__1&file=kf_02_203.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__1&file=kf_03_204.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show multiple people in a retail environment, with some individuals holding or examining items near shelves and counters. There is no clear visual evidence of concealing unpaid merchandise into bags, pockets, or clothing across the frames. The L1 event is a soft qty_spike hint without matching visual concealment evidence, so the behavior appears to be normal shopping or browsing.","latency_ms":1452.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the sleeveless patterned top moves an item from the shelf into their brown bag across sequential frames, hiding the product in the bag rather than placing it visibly for checkout or return, matching the definition of concealing unpaid merchandise.","latency_ms":3074.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer in the blue shirt (C#11) is seen reaching toward a shelf, then quickly moving with a sudden motion while holding an item close to their body. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, and the person’s posture—bending slightly, keeping arms close, and moving away from the display without placing the item in a visible cart or basket—indicates concealment intent. No clear checkout or return action is observed, and the behavior deviates from normal browsing. The presence of other customers nearby does not negate the suspicious multi-frame pattern of hiding merchandise.","latency_ms":3507.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"steal","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person in the orange shirt is seen concealing an item under their arm while standing near the checkout counter, indicating clear intent to shoplift. This behavior aligns with the 'steal' label as it shows concealment of unpaid merchandise.","latency_ms":2066.3}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting030_x264__C_11__conceal__2","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual (P#11) is observed in multi-frame behavior consistent with concealing an unpaid item in their hip pocket, matching the L1 conceal event subtype of pocket concealment, with visual trajectory and item evidence supporting the hiding action across frames.","latency_ms":2473.6,"agreement_hint":"keep_ok","center_ts":124.76666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__conceal__2&file=kf_00_123.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__conceal__2&file=kf_01_124.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__conceal__2&file=kf_02_125.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__conceal__2&file=kf_03_125.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The L1 event suggests a concealment into a pocket at the hip, but the provided keyframes are too low-resolution and distant to visually confirm any item being hidden. No clear multi-frame concealment behavior is discernible from the images alone.","latency_ms":1375.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#11) is observed in multi-frame behavior consistent with concealing an unpaid item in their hip pocket, matching the L1 conceal event subtype of pocket concealment, with visual trajectory and item evidence supporting the hiding action across frames.","latency_ms":2473.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view) and high model score (0.85), strongly indicates the person is hiding an item in their pocket or clothing. The multi-frame behavior shows the individual leaning forward and making a motion consistent with concealing an object at the hip, which aligns with the 'conceal_unpaid' label per rules—specifically, concealment into clothing/pocket, not just holding. No payment or visible return to shelf occurs.","latency_ms":2794.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.95,"agreement_hint":"keep_ok","rationale":"The individual is seen bending over and placing an item into their waistband or pocket area, consistent with concealing unpaid merchandise. This behavior aligns with the 'conceal' L1 event and demonstrates clear intent to hide the item from view.","latency_ms":2831.2}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting030_x264__C_11__qty_spike__4","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual in the sleeveless patterned top moves their arm from reaching toward merchandise on the shelf to tucking an item into their brown bag across multiple consecutive frames, demonstrating clear concealment of an unpaid product.","latency_ms":2149.0,"agreement_hint":"keep_ok","center_ts":203.16666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__qty_spike__4&file=kf_00_202.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__qty_spike__4&file=kf_01_202.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__qty_spike__4&file=kf_02_203.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__qty_spike__4&file=kf_03_204.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show multiple shoppers in a store, with individuals holding bags and items, but no clear visual evidence of concealing unpaid merchandise into pockets, bags, or clothing. The L1 qty_spike event is a soft hint and not sufficient without matching visual concealment.","latency_ms":1301.1},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the sleeveless patterned top moves their arm from reaching toward merchandise on the shelf to tucking an item into their brown bag across multiple consecutive frames, demonstrating clear concealment of an unpaid product.","latency_ms":2149.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer in the blue shirt (C#11) is seen reaching into a display area and then quickly moving toward their body while holding an item. In the final frame, they appear to be tucking or hiding the item under their clothing or into a bag, consistent with concealment behavior. The L1 event 'qty_spike' and 'taken_proxy>=2' support multiple items being taken, and the multi-frame sequence shows intent to hide rather than return or place in cart. No visible payment occurs, and the action is inconsistent with normal browsing.","latency_ms":2923.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"steal","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the blue shirt is seen placing an item into their waistband or pocket area, which is consistent with concealment behavior. This action, combined with the proximity to the checkout counter and the presence of other shoppers, strongly suggests an intent to shoplift.","latency_ms":2136.6}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting030_x264__C_1__0","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual in the green plaid shirt adjusts their bag in a sequence of frames, with the bag appearing to shift position toward their torso in a way consistent with hiding an unpaid item, paired with the L1 qty_spike event indicating a potential product take.","latency_ms":3069.4,"agreement_hint":"keep_ok","center_ts":158.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__0&file=kf_00_157.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__0&file=kf_01_158.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__0&file=kf_02_158.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__0&file=kf_03_159.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show individuals standing and interacting near a display counter, with no visible concealment of merchandise into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding intent across frames.","latency_ms":1161.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the green plaid shirt adjusts their bag in a sequence of frames, with the bag appearing to shift position toward their torso in a way consistent with hiding an unpaid item, paired with the L1 qty_spike event indicating a potential product take.","latency_ms":3069.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (in the plaid shirt, center-right) is seen bending down and placing an item into a bag or pocket area near their waist/hip while others are distracted. The L1 event 'qty_spike' and 'handheld_peak>=2' suggest multiple items were handled quickly, and the body posture (bending, hiding motion) combined with the context of a retail store strongly indicates concealment of unpaid merchandise. This matches the definition of 'conceal_unpaid' — hiding on the body — not just browsing.","latency_ms":2728.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen holding an item in their hand and appears to be examining or considering it, consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or clothing, and the actions do not indicate shoplifting intent.","latency_ms":2089.1}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting030_x264__C_1__conceal__1","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual (P#1) is observed moving an item toward their hip pocket across sequential frames, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior indicating hiding an unpaid product rather than normal shopping activity.","latency_ms":3199.2,"agreement_hint":"keep_ok","center_ts":92.76666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__conceal__1&file=kf_00_91.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__conceal__1&file=kf_01_92.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__conceal__1&file=kf_02_93.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__conceal__1&file=kf_03_93.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show a person in the foreground with a bag and hand near the hip area, consistent with hiding merchandise. While the visual evidence is not perfectly clear, the combination of the L1 conceal event and the observed posture supports concealment of unpaid merchandise.","latency_ms":1447.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#1) is observed moving an item toward their hip pocket across sequential frames, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior indicating hiding an unpaid product rather than normal shopping activity.","latency_ms":3199.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view) and high model score (0.85), strongly indicates the person is concealing an item in their pocket or clothing. The multi-frame behavior shows them standing near the counter while making a motion consistent with hiding an item, and no payment is observed. This aligns with 'conceal_unpaid' per rules: concealment into body/pocket is confirmed by both visual context and L1 metadata.","latency_ms":3152.2},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item into their pocket, which is a clear act of concealment. This behavior aligns with the 'conceal' event type and indicates an intent to steal unpaid merchandise.","latency_ms":1637.5}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting030_x264__C_1__qty_spike__3","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual in the green plaid shirt adjusts their bag in a sequence of frames, with the bag positioned to conceal items, consistent with hiding unpaid merchandise. The L1 qty_spike event provides additional soft context supporting potential concealment, and the multi-frame behavior shows intent to hide items rather than normal browsing.","latency_ms":2861.1,"agreement_hint":"keep_ok","center_ts":158.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__qty_spike__3&file=kf_00_157.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__qty_spike__3&file=kf_01_158.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__qty_spike__3&file=kf_02_158.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__qty_spike__3&file=kf_03_159.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show multiple people in a retail environment, with some individuals holding or examining items near a display counter. There is no clear visual evidence of a person concealing unpaid merchandise into a bag, pocket, or clothing across the frames. The L1 event is a soft qty_spike hint, but the visuals do not confirm concealment or shoplifting intent.","latency_ms":2239.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the green plaid shirt adjusts their bag in a sequence of frames, with the bag positioned to conceal items, consistent with hiding unpaid merchandise. The L1 qty_spike event provides additional soft context supporting potential concealment, and the multi-frame behavior shows intent to hide items rather than normal browsing.","latency_ms":2861.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (in blue shirt) is seen bending down and reaching toward the floor near their feet while holding a large brown bag. In the context of the L1 event 'qty_spike' and 'handheld_peak>=2', combined with the posture suggesting an attempt to hide or retrieve an item, this behavior strongly indicates concealment of unpaid merchandise. The person’s hand movement near the bag and lower body suggests placing or retrieving an item into the bag without paying. No clear checkout or return action is observed.","latency_ms":2898.2},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen holding and examining a product in their hand, consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or under clothing, and the actions appear to be part of a typical browsing process.","latency_ms":3339.3}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting030_x264__C_20__conceal__6","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual in the red shirt performs a sequence of actions consistent with concealing an unpaid item: they bend down near the shelf area, then move their hands toward their hip pocket (matching the L1 event's subtype of pocket concealment), with multi-frame behavior showing the action of hiding an item on their person rather than normal browsing or checkout.","latency_ms":2916.7,"agreement_hint":"keep_ok","center_ts":313.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_20__conceal__6&file=kf_00_312.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_20__conceal__6&file=kf_01_313.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_20__conceal__6&file=kf_02_313.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_20__conceal__6&file=kf_03_314.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show a person in a red top and dark pants near a display counter with a hand-to-hip motion consistent with hiding merchandise. While the visual evidence is not perfectly clear, the multi-frame behavior and L1 context support concealment.","latency_ms":1353.1},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the red shirt performs a sequence of actions consistent with concealing an unpaid item: they bend down near the shelf area, then move their hands toward their hip pocket (matching the L1 event's subtype of pocket concealment), with multi-frame behavior showing the action of hiding an item on their person rather than normal browsing or checkout.","latency_ms":2916.7},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly labels 'conceal' with subtype 'pocket' and zone 'hip', and the trajectory evidence shows high dwell ratio (0.833) and co-disappear (1.0), indicating the item was hidden on the person's body. The multi-frame behavior shows the customer in close proximity to a display, then moving away with no visible payment or cart placement, consistent with concealment intent. No checkout or return is observed.","latency_ms":2164.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their pocket, which is a clear act of concealment. This behavior aligns with the 'conceal_unpaid' label as it indicates an intent to hide merchandise without paying.","latency_ms":1882.9}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting030_x264__C_28__conceal__7","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual in the light blue shirt performs a sequence of actions across frames: moving toward the right-side display, bending down toward their hip area (matching the L1 event's subtype of pocket concealment), consistent with hiding an unpaid item on their person. The multi-frame behavior aligns with concealment intent rather than normal shopping activity.","latency_ms":3302.3,"agreement_hint":"keep_ok","center_ts":363.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_28__conceal__7&file=kf_00_362.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_28__conceal__7&file=kf_01_362.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_28__conceal__7&file=kf_02_363.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_28__conceal__7&file=kf_03_364.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.3,"agreement_hint":"uncertain","rationale":"The keyframes show multiple people in a store, but no clear visual evidence of a person concealing unpaid merchandise into a bag, pocket, or clothing. The L1 conceal event is a soft hint and cannot be verified from the provided frames.","latency_ms":852.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the light blue shirt performs a sequence of actions across frames: moving toward the right-side display, bending down toward their hip area (matching the L1 event's subtype of pocket concealment), consistent with hiding an unpaid item on their person. The multi-frame behavior aligns with concealment intent rather than normal shopping activity.","latency_ms":3302.3},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' at the hip zone, and the trajectory analysis shows a high co-disappear score (1.0) and dwell ratio (1.0), indicating the item was hidden on the person's body rather than placed in a visible bag or cart. Although no direct visual of the item being pocketed is seen in these frames, the multi-frame behavior (approach, pause at hip, then move away without placing in cart) combined with the strong L1 evidence supports concealment intent. The risk score is low but the model and trajectory scores are high, and the weak label is 'positive' for theft.","latency_ms":2981.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the red top is seen placing an item into their pocket, consistent with concealment behavior. This action aligns with the L1 event 'conceal' and indicates intent to hide unpaid merchandise.","latency_ms":2449.6}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting030_x264__C_2__conceal__0","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual in the red shirt is holding a product against their torso under their clothing, consistent with multi-frame behavior of concealing an unpaid item, matching the L1 conceal event subtype of under_clothes.","latency_ms":2999.5,"agreement_hint":"keep_ok","center_ts":16.766666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_2__conceal__0&file=kf_00_15.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_2__conceal__0&file=kf_01_16.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_2__conceal__0&file=kf_02_17.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_2__conceal__0&file=kf_03_17.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the red shirt is seen bending down and interacting with merchandise in a manner consistent with concealing items under clothing or in a bag, as indicated by the L1 event subtype 'under_clothes' and the visual evidence of the person's posture and actions across multiple frames.","latency_ms":1312.8},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the red shirt is holding a product against their torso under their clothing, consistent with multi-frame behavior of concealing an unpaid item, matching the L1 conceal event subtype of under_clothes.","latency_ms":2999.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person (P#2, red top) is crouched near a display counter and appears to be placing an item under their clothing or into a hidden location, consistent with the L1 event 'conceal' and meta subtype 'under_clothes'. The posture, prolonged crouch, and lack of visible payment or return to shelf indicate intent to conceal unpaid merchandise. This matches the definition of 'conceal_unpaid' as hiding items on the body across multiple frames.","latency_ms":2525.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is crouched near the checkout counter, with their hands positioned in a way that suggests they are concealing an item under their clothing or in a hidden location. This behavior aligns with the 'under_clothes' concealment pattern indicated by the L1 event and visual evidence.","latency_ms":2537.9}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting039_x264__C_2__0","clip_id":"ucf_theft__Shoplifting039_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Across sequential frames, the customer is seen moving items from a display counter and concealing them under their clothing (waistband/pants area) in a manner consistent with hiding unpaid merchandise, matching multi-frame behavior indicating concealment.","latency_ms":2527.6,"agreement_hint":"keep_ok","center_ts":82.36666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting039_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__0&file=kf_00_81.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__0&file=kf_01_82.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__0&file=kf_02_82.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__0&file=kf_03_83.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a person standing near a display table and shelf, facing away from the camera. No concealment into bag, pocket, or clothing is visible. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1405.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the customer is seen moving items from a display counter and concealing them under their clothing (waistband/pants area) in a manner consistent with hiding unpaid merchandise, matching multi-frame behavior indicating concealment.","latency_ms":2527.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The person is standing near a display area, facing the shelves and looking toward the entrance, with hands on hips in a relaxed posture. No visual evidence of picking up, holding, or concealing any item is present across the frames. The behavior aligns with normal browsing — possibly waiting or observing — and no concealment action (e.g., into bag/pocket/clothes) is observed. L1 event 'qty_spike' alone is insufficient without visual confirmation of theft.","latency_ms":2279.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen picking up an item, examining it briefly, and placing it into a shopping basket. There is no evidence of concealment or hiding the item on their body. The behavior aligns with normal shopping activity.","latency_ms":1742.5}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting039_x264__C_2__conceal__0","clip_id":"ucf_theft__Shoplifting039_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual is observed moving from the center of the store to the right-side shelf area, with their hand positioned at their hip (matching the L1 conceal event subtype of pocket) across sequential frames, and exits the frame after this action, consistent with hiding an unpaid item in their clothing.","latency_ms":2033.7,"agreement_hint":"keep_ok","center_ts":10.766666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting039_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__conceal__0&file=kf_00_9.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__conceal__0&file=kf_01_10.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__conceal__0&file=kf_02_11.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__conceal__0&file=kf_03_11.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The keyframes show a person walking through the store, but no clear concealment of merchandise into a bag, pocket, or clothing is visible. The L1 event suggests a concealment at the hip, but the visual evidence does not confirm this action across the frames.","latency_ms":1074.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual is observed moving from the center of the store to the right-side shelf area, with their hand positioned at their hip (matching the L1 conceal event subtype of pocket) across sequential frames, and exits the frame after this action, consistent with hiding an unpaid item in their clothing.","latency_ms":2033.7},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappearance (item vanishes from view) and high score (0.759), strongly indicates the person concealed an item in their pocket or clothing. The person's posture and movement toward the exit without proceeding to checkout support this. No visual of the item being placed in a bag or cart, but the 'pocket' subtype and high confidence in concealment align with 'conceal_unpaid'.","latency_ms":2583.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen concealing an item into their pocket (as indicated by the L1 event 'conceal' with subtype 'pocket'), which aligns with behavior consistent with shoplifting intent. The person's actions across the frames suggest an attempt to hide merchandise without paying.","latency_ms":1958.6}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting039_x264__C_2__qty_spike__1","clip_id":"ucf_theft__Shoplifting039_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Across sequential frames, the customer is seen moving items from a display area and concealing them under their clothing (torso/waist area) without any visible payment action, consistent with hiding unpaid merchandise. The L1 qty_spike event aligns with the observed multi-frame behavior of handling and concealing products.","latency_ms":3204.9,"agreement_hint":"keep_ok","center_ts":82.36666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting039_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__qty_spike__1&file=kf_00_81.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__qty_spike__1&file=kf_01_82.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__qty_spike__1&file=kf_02_82.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__qty_spike__1&file=kf_03_83.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a person standing near a display table and then walking toward the exit. No visual evidence of concealing merchandise into a bag, pocket, or clothing is visible. The L1 qty_spike event is a soft hint and not supported by clear concealment behavior in the provided keyframes.","latency_ms":1481.4},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the customer is seen moving items from a display area and concealing them under their clothing (torso/waist area) without any visible payment action, consistent with hiding unpaid merchandise. The L1 qty_spike event aligns with the observed multi-frame behavior of handling and concealing products.","latency_ms":3204.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The person is standing near a display with hands on hips, facing the entrance/exit area, and appears to be browsing or waiting. No visual evidence of picking up, holding, or concealing any merchandise. The L1 event 'qty_spike' is likely a false positive (e.g., due to motion detection or proxy signal), but without actual visual confirmation of item handling or concealment, this behavior aligns with normal browsing. No concealment action is observed across frames.","latency_ms":3609.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is seen picking up an item, holding it briefly, and examining it while standing near the checkout counter. There is no visible concealment into a bag, pocket, or clothing, and the behavior aligns with normal shopping activity rather than shoplifting intent.","latency_ms":2523.8}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_10__1","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The customer with dark hair in a white top is observed moving clothing from the rack and tucking it into the back of her jeans (under her clothing) across sequential frames, which constitutes hiding an unpaid product on her body.","latency_ms":2923.5,"agreement_hint":"keep_ok","center_ts":43.166666666666664,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__1&file=kf_00_42.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__1&file=kf_01_42.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__1&file=kf_02_43.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__1&file=kf_03_44.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show customers browsing and handling clothing on racks, with no visible concealment into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding unpaid merchandise.","latency_ms":1478.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer with dark hair in a white top is observed moving clothing from the rack and tucking it into the back of her jeans (under her clothing) across sequential frames, which constitutes hiding an unpaid product on her body.","latency_ms":2923.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing clothing racks, reaching for items, and appears to be examining or selecting garments in a normal shopping manner. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothes) or intent to steal. The L1 event 'qty_spike' with 'taken_proxy>=2' may reflect rapid item handling during selection, but without visible concealment, it remains consistent with browsing behavior.","latency_ms":2099.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is picking up and examining clothing items from the rack, which is consistent with normal shopping behavior. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames.","latency_ms":1515.5}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_10__conceal__3","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual in the white long-sleeve shirt repeatedly manipulates clothing near their torso, with multi-frame behavior showing actions consistent with hiding an item under their clothing, matching the L1 conceal event subtype of under_clothes.","latency_ms":3242.6,"agreement_hint":"keep_ok","center_ts":41.56666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__conceal__3&file=kf_00_40.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__conceal__3&file=kf_01_41.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__conceal__3&file=kf_02_41.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__conceal__3&file=kf_03_42.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action under clothes, and the multi-frame sequence shows a person in the foreground with a white top and dark hair whose body orientation and hand movements are consistent with hiding an item near the waistband or under clothing while browsing. The concealment is not fully visible due to occlusion, but the behavior aligns with the L1 conceal hint and the trajectory evidence of item disappearance.","latency_ms":1794.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the white long-sleeve shirt repeatedly manipulates clothing near their torso, with multi-frame behavior showing actions consistent with hiding an item under their clothing, matching the L1 conceal event subtype of under_clothes.","latency_ms":3242.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high trajectory score (0.6678) + co_disappear=1.0 across 6 frames strongly indicates concealment under clothes. The person's posture (bending, hand near waist/hip area) and the context of being in a clothing store support intent to hide merchandise without payment. No visible checkout or return actions occur.","latency_ms":2858.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen picking up and examining clothing items, which is consistent with normal shopping behavior. There is no visible concealment of merchandise into a bag, pocket, or under clothes across the frames.","latency_ms":2072.5}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_10__qty_spike__4","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The customer in the white top and jeans is observed moving clothing from the rack and positioning items under her lifted top (waist area) across consecutive frames, which constitutes hiding unpaid merchandise on her body. The L1 qty_spike event aligns with the multi-frame behavior of taking items to conceal them, matching the visual evidence of hiding.","latency_ms":2776.0,"agreement_hint":"keep_ok","center_ts":43.166666666666664,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__qty_spike__4&file=kf_00_42.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__qty_spike__4&file=kf_01_42.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__qty_spike__4&file=kf_02_43.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__qty_spike__4&file=kf_03_44.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The keyframes show customers browsing and handling clothing on racks in a retail store. No clear concealment into bags, pockets, or clothing is visible across the frames. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding merchandise.","latency_ms":1186.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer in the white top and jeans is observed moving clothing from the rack and positioning items under her lifted top (waist area) across consecutive frames, which constitutes hiding unpaid merchandise on her body. The L1 qty_spike event aligns with the multi-frame behavior of taking items to conceal them, matching the visual evidence of hiding.","latency_ms":2776.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing clothes, reaching into a rack, picking up items, and examining them — typical shopping behavior. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothing) or hiding actions across frames. The L1 'qty_spike' event may reflect rapid item handling during browsing, not theft. No intent to steal is visible.","latency_ms":2088.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is seen picking up and examining clothing items from the rack, which is consistent with normal shopping behavior. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames.","latency_ms":2199.3}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_29__3","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual in the white top and jeans is seen moving a clothing item from the rack and concealing it inside the back of their pants (under clothing) across sequential frames, which matches the definition of hiding unpaid merchandise. The L1 qty_spike event aligns with the observed action of taking an item to conceal, supporting the visual evidence.","latency_ms":3317.8,"agreement_hint":"keep_ok","center_ts":157.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__3&file=kf_00_156.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__3&file=kf_01_157.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__3&file=kf_02_157.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__3&file=kf_03_158.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks. No clear concealment into bags, pockets, or clothing is visible across the sequence. The L1 qty_spike signal is a soft hint and lacks matching visual evidence of hiding merchandise.","latency_ms":1415.0},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the white top and jeans is seen moving a clothing item from the rack and concealing it inside the back of their pants (under clothing) across sequential frames, which matches the definition of hiding unpaid merchandise. The L1 qty_spike event aligns with the observed action of taking an item to conceal, supporting the visual evidence.","latency_ms":3317.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customers are actively browsing clothing racks, picking up items, examining them, and placing them back or holding them while shopping—consistent with normal retail behavior. No visual evidence of concealment (e.g., putting items into bags/pockets/clothes without paying) is observed across the frames. The L1 event 'qty_spike' with 'handheld_peak>=2' may reflect brief handling but does not indicate theft without additional concealment cues.","latency_ms":2309.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are seen picking up, holding, and examining clothing items in a typical shopping manner. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames. The behavior aligns with normal browsing and product evaluation.","latency_ms":2214.3}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_29__conceal__5","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual with dark hair and white top is observed moving a clothing item toward their underclothes (midsection) across sequential frames, consistent with hiding an unpaid product under clothing, matching the L1 conceal event subtype of under_clothes.","latency_ms":2778.1,"agreement_hint":"keep_ok","center_ts":146.76666666666668,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__conceal__5&file=kf_00_145.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__conceal__5&file=kf_01_146.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__conceal__5&file=kf_02_147.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__conceal__5&file=kf_03_147.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action under clothes, and the multi-frame sequence shows a person in the foreground handling merchandise near their waistline, consistent with hiding unpaid items.","latency_ms":1489.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual with dark hair and white top is observed moving a clothing item toward their underclothes (midsection) across sequential frames, consistent with hiding an unpaid product under clothing, matching the L1 conceal event subtype of under_clothes.","latency_ms":2778.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 1.0) indicates the person likely concealed an item under clothing. The person’s posture—bending slightly, hand near waist/hip area, and holding a bag while standing close to others—supports concealment intent. No visual of the item being placed in a bag or pocket is seen, but the multi-frame behavior (dwell, co-disappear, and lack of visible re-emergence) strongly suggests unpaid concealment. This aligns with the rule that only steal/conceal_unpaid when visuals show concealment into bag/pocket/clothes or clear multi-frame hiding intent.","latency_ms":3463.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item under their clothing, which is consistent with concealment behavior. This action aligns with the L1 event 'conceal' and indicates an intent to hide unpaid merchandise.","latency_ms":1618.3}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_29__qty_spike__8","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"A woman in a white top and jeans is observed over multiple frames placing clothing items into her pants waistband, hiding them from view, which constitutes concealing unpaid merchandise. The L1 qty_spike event aligns with this multi-frame concealment behavior.","latency_ms":3892.8,"agreement_hint":"keep_ok","center_ts":157.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__qty_spike__8&file=kf_00_156.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__qty_spike__8&file=kf_01_157.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__qty_spike__8&file=kf_02_157.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__qty_spike__8&file=kf_03_158.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks. No clear concealment into bags, pockets, or clothing is visible. The L1 qty_spike event is a soft hint and not supported by visual evidence of hiding merchandise.","latency_ms":1299.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"A woman in a white top and jeans is observed over multiple frames placing clothing items into her pants waistband, hiding them from view, which constitutes concealing unpaid merchandise. The L1 qty_spike event aligns with this multi-frame concealment behavior.","latency_ms":3892.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The person is actively browsing clothing racks, picking up and examining items, and holding them visibly while standing near the rack. There is no visual evidence of concealment into bags, pockets, or under clothes. The 'qty_spike' L1 event may reflect multiple items being handled quickly during normal browsing (e.g., checking several garments), but without any indication of hiding or attempting to leave without paying, this remains within normal shopping behavior.","latency_ms":2171.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are seen picking up, holding, and examining clothing items in a typical shopping manner. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames. The behavior aligns with normal browsing and product evaluation.","latency_ms":2258.6}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_3__conceal__13","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual in the white top is observed moving a purple garment from a display rack and concealing it under their outer clothing at their hip, consistent with the L1 conceal event subtype of pocket/hip concealment, with multi-frame behavior showing the garment being hidden on their body rather than normal shopping activity.","latency_ms":3162.8,"agreement_hint":"keep_ok","center_ts":485.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_3__conceal__13&file=kf_00_484.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_3__conceal__13&file=kf_01_484.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_3__conceal__13&file=kf_02_485.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_3__conceal__13&file=kf_03_486.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the multi-frame sequence shows the person handling merchandise in a manner consistent with hiding it on their body rather than browsing or checking out.","latency_ms":1564.4},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the white top is observed moving a purple garment from a display rack and concealing it under their outer clothing at their hip, consistent with the L1 conceal event subtype of pocket/hip concealment, with multi-frame behavior showing the garment being hidden on their body rather than normal shopping activity.","latency_ms":3162.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' at hip level, and the trajectory analysis shows co-disappearance (item vanishes from view after interaction), dwell ratio of 1.0, and high model score (0.85). The person's behavior across frames shows them interacting with merchandise near the hip area, consistent with hiding an item in a pocket or under clothing, without placing it in a visible cart or basket. This aligns with 'conceal_unpaid' as defined: hiding product on the body with clear intent to avoid payment.","latency_ms":2901.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen picking up a purple garment and placing it into their bag, which aligns with the 'conceal' L1 event indicating intent to hide unpaid merchandise. The behavior across frames shows clear concealment into the bag.","latency_ms":2400.8}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_40__conceal__10","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual (P#40) is observed over multiple frames moving an item toward their hip pocket (consistent with the L1 conceal event subtype of pocket), with multi-frame behavior showing intent to hide the item on their body rather than browse or checkout.","latency_ms":3646.5,"agreement_hint":"keep_ok","center_ts":396.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_40__conceal__10&file=kf_00_395.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_40__conceal__10&file=kf_01_396.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_40__conceal__10&file=kf_02_396.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_40__conceal__10&file=kf_03_397.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the multi-frame sequence shows a person in the foreground interacting with merchandise in a manner consistent with hiding an item on their body.","latency_ms":1416.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#40) is observed over multiple frames moving an item toward their hip pocket (consistent with the L1 conceal event subtype of pocket), with multi-frame behavior showing intent to hide the item on their body rather than browse or checkout.","latency_ms":3646.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after interaction) and high model score (0.85), strongly indicates the person concealed an item in their pocket or clothing. The multi-frame behavior shows them interacting with merchandise near the hip area, consistent with hiding an unpaid item. No visual of payment or return to shelf is observed.","latency_ms":2528.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item into a bag or pocket area near their hip, consistent with concealment behavior. This action aligns with the L1 event 'conceal' and is supported by visual evidence across multiple frames.","latency_ms":2239.8}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_48__5","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The woman in the white top is seen holding a dark garment and moving it toward her body/back area across sequential frames, consistent with hiding an unpaid product, supported by the L1 qty_spike event indicating a potential take of multiple items.","latency_ms":2945.0,"agreement_hint":"keep_ok","center_ts":444.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__5&file=kf_00_443.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__5&file=kf_01_444.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__5&file=kf_02_444.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__5&file=kf_03_445.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks without any visible concealment into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1243.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The woman in the white top is seen holding a dark garment and moving it toward her body/back area across sequential frames, consistent with hiding an unpaid product, supported by the L1 qty_spike event indicating a potential take of multiple items.","latency_ms":2945.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.8,"agreement_hint":"keep_ok","rationale":"The customer (C#48) is seen browsing and then, in the final frames, appears to be placing an item into a bag or pocket while turning away from the rack—consistent with concealment behavior. The L1 event 'qty_spike' and 'taken_proxy>=2' support multiple items being handled, and the multi-frame sequence shows intent to hide merchandise without paying. No visible checkout or return action occurs.","latency_ms":2025.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen holding a garment close to their body and appears to be concealing it under their top or into their bag, consistent with shoplifting intent across multiple frames.","latency_ms":2868.3}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_48__conceal__11","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual (P#48) is observed over multiple frames moving their hand toward their hip pocket (per L1 event subtype: pocket, zone: hip) while handling clothing, consistent with hiding an unpaid item on their person, matching the conceal_unpaid criteria of hiding merchandise in a pocket/on the body.","latency_ms":4239.4,"agreement_hint":"keep_ok","center_ts":439.96666666666664,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__conceal__11&file=kf_00_438.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__conceal__11&file=kf_01_439.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__conceal__11&file=kf_02_440.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__conceal__11&file=kf_03_441.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The keyframes show a woman in a white top and blue jeans moving through the store and then reaching toward her waistband/hip area in a manner consistent with concealing an item, matching the L1 conceal event (subtype: pocket, zone: hip). The multi-frame sequence captures the concealment motion rather than mere browsing.","latency_ms":1557.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#48) is observed over multiple frames moving their hand toward their hip pocket (per L1 event subtype: pocket, zone: hip) while handling clothing, consistent with hiding an unpaid item on their person, matching the conceal_unpaid criteria of hiding merchandise in a pocket/on the body.","latency_ms":4239.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with high trajectory score (0.7429) and co-disappear signal (1.0), indicates the person likely concealed an item in their hip/pocket area. The person's body language—hand moving toward the hip area while walking away from the rack—and the context of being in a clothing store support this. No visual evidence shows the item being placed in a bag or returned to a shelf, and the risk score is low but the meta data strongly suggests concealment intent. This aligns with 'conceal_unpaid' as defined: hiding merchandise on the body without payment.","latency_ms":3013.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their front pocket, which is a clear act of concealment. This behavior aligns with the 'conceal_unpaid' label as it indicates an intent to hide merchandise without paying.","latency_ms":2743.8}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_48__qty_spike__12","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The woman in the white top is seen holding a dark bag and moving toward her torso/side, with multi-frame behavior showing she is concealing an item (consistent with hiding unpaid merchandise) rather than normal shopping actions like examining or placing items in a cart. The L1 qty_spike event aligns with this observed concealment behavior.","latency_ms":2825.8,"agreement_hint":"keep_ok","center_ts":444.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__qty_spike__12&file=kf_00_443.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__qty_spike__12&file=kf_01_444.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__qty_spike__12&file=kf_02_444.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__qty_spike__12&file=kf_03_445.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The keyframes show customers browsing and handling clothing on racks without any visible concealment into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding merchandise.","latency_ms":1783.8},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The woman in the white top is seen holding a dark bag and moving toward her torso/side, with multi-frame behavior showing she is concealing an item (consistent with hiding unpaid merchandise) rather than normal shopping actions like examining or placing items in a cart. The L1 qty_spike event aligns with this observed concealment behavior.","latency_ms":2825.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#48) is seen browsing and then, in the final frames, appears to be placing an item into a bag or pocket while turning away from the rack—consistent with concealment behavior. The L1 event 'qty_spike' with taken_proxy=2 and take_burst>=2/25s supports multiple items being handled quickly, and the visual sequence shows her moving toward the exit with a bag that may contain unpaid merchandise. No clear checkout or return action is observed.","latency_ms":2945.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person in the blue top is seen placing an item into her bag or under her clothing while browsing, which indicates an intent to conceal unpaid merchandise. This behavior aligns with shoplifting intent across multiple frames.","latency_ms":1846.4}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_4__0","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The customer in the white top is observed moving an item toward their torso/under their clothing across sequential frames, consistent with hiding an unpaid product, matching the L1 event's handheld peak signal indicating multiple items handled with intent to conceal.","latency_ms":2844.2,"agreement_hint":"keep_ok","center_ts":13.966666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__0&file=kf_00_12.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__0&file=kf_01_13.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__0&file=kf_02_14.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__0&file=kf_03_15.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks; no concealment into a bag, pocket, or clothing is visible. The L1 qty_spike is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1770.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer in the white top is observed moving an item toward their torso/under their clothing across sequential frames, consistent with hiding an unpaid product, matching the L1 event's handheld peak signal indicating multiple items handled with intent to conceal.","latency_ms":2844.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customers are actively browsing clothing racks, picking up items, examining them, and placing them back on the rack or holding them while shopping. There is no visual evidence of concealment (e.g., putting items into bags, pockets, or under clothes) or intent to steal. The L1 event 'qty_spike' with 'handheld_peak>=2' may reflect multiple items being held briefly for inspection, which is consistent with normal browsing behavior in a retail setting.","latency_ms":2491.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are seen browsing through clothing items on the racks, picking up and examining garments. There is no visible concealment of merchandise into bags, pockets, or under clothes. The behavior appears consistent with normal shopping activity.","latency_ms":1793.9}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_4__conceal__0","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual is observed moving an item toward their hip pocket across sequential frames, consistent with hiding an unpaid item on their person, matching the L1 conceal event subtype of pocket concealment.","latency_ms":2411.2,"agreement_hint":"keep_ok","center_ts":5.566666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__conceal__0&file=kf_00_4.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__conceal__0&file=kf_01_5.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__conceal__0&file=kf_02_5.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__conceal__0&file=kf_03_6.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The keyframes show a person in the center of the frame with a dark shoulder bag. Across the sequence, they appear to be interacting with merchandise while their body and bag are positioned in a way that suggests concealing an item, consistent with the L1 conceal event (subtype: pocket, zone: hip). The multi-frame behavior indicates hiding intent rather than normal browsing.","latency_ms":2055.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual is observed moving an item toward their hip pocket across sequential frames, consistent with hiding an unpaid item on their person, matching the L1 conceal event subtype of pocket concealment.","latency_ms":2411.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view) and high score (0.6748), indicates the person is hiding an item on their person. The multi-frame behavior shows the individual moving with a bag or item near their hip, consistent with concealment into pocket or under clothing. No payment or return to shelf is observed, supporting unpaid concealment intent.","latency_ms":2614.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their waistband/pocket area, consistent with concealing unpaid merchandise. This behavior aligns with the 'conceal' L1 event and is supported by visual evidence across multiple frames.","latency_ms":1860.6}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_4__qty_spike__1","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The customer in the white top is observed moving an item toward their torso/under their clothing across sequential frames, consistent with hiding an unpaid product, supported by the L1 qty_spike event indicating a quantity change associated with this activity.","latency_ms":2453.5,"agreement_hint":"keep_ok","center_ts":13.966666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__qty_spike__1&file=kf_00_12.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__qty_spike__1&file=kf_01_13.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__qty_spike__1&file=kf_02_14.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__qty_spike__1&file=kf_03_15.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks; no concealment into bags, pockets, or clothing is visible. The L1 qty_spike is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":935.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer in the white top is observed moving an item toward their torso/under their clothing across sequential frames, consistent with hiding an unpaid product, supported by the L1 qty_spike event indicating a quantity change associated with this activity.","latency_ms":2453.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customers are actively browsing clothing racks, picking up items, examining them, and placing them back or holding them while shopping—consistent with normal retail behavior. No visual evidence of concealment (e.g., putting items into bags/pockets/clothes) or intent to steal is observed across the frames. The L1 event 'qty_spike' is likely due to multiple items being handled in quick succession during normal browsing (e.g., trying on or comparing), not theft.","latency_ms":2496.2},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are seen examining and handling clothing items on the racks, consistent with normal shopping behavior. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames.","latency_ms":2091.4}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_5__conceal__6","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual (P#5) is holding multiple garments and moving toward their hip pocket (per L1 event subtype 'pocket'), with multi-frame behavior showing the action of positioning items to conceal them on their person, consistent with hiding unpaid merchandise.","latency_ms":3190.3,"agreement_hint":"keep_ok","center_ts":148.76666666666668,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__conceal__6&file=kf_00_147.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__conceal__6&file=kf_01_148.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__conceal__6&file=kf_02_149.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__conceal__6&file=kf_03_149.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the multi-frame sequence shows a person handling merchandise in a manner consistent with hiding it on their body rather than openly carrying it.","latency_ms":1825.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#5) is holding multiple garments and moving toward their hip pocket (per L1 event subtype 'pocket'), with multi-frame behavior showing the action of positioning items to conceal them on their person, consistent with hiding unpaid merchandise.","latency_ms":3190.3},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' at hip zone, and the trajectory analysis shows co-disappear (item vanishes from view after interaction) with high score (0.65) and 100% dwell ratio. The person's posture and hand motion toward the hip area across multiple frames suggest hiding an item in a pocket or waistband, consistent with concealment intent. No payment or return to shelf is observed.","latency_ms":2657.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is seen picking up and examining clothing items, placing them into a shopping basket, and interacting with the merchandise in a manner consistent with normal shopping behavior. There is no visible concealment of unpaid items into bags, pockets, or under clothes.","latency_ms":2064.0}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_71__6","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Across the sequence of frames, the customer in the turquoise shirt is manipulating clothing from the rack while their personal bag is positioned at their side, with visual evidence of movement that suggests placing an item into the bag, consistent with hiding unpaid merchandise. The L1 qty_spike event aligns with this observed multi-frame behavior of concealing an item.","latency_ms":3151.3,"agreement_hint":"keep_ok","center_ts":665.9666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__6&file=kf_00_664.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__6&file=kf_01_665.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__6&file=kf_02_666.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__6&file=kf_03_667.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The person is seen browsing clothing racks and holding items near a bag, but there is no clear visual evidence of concealing unpaid merchandise into a bag, pocket, or clothing. The L1 qty_spike event is a soft hint and not sufficient for a concealment determination.","latency_ms":1461.0},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across the sequence of frames, the customer in the turquoise shirt is manipulating clothing from the rack while their personal bag is positioned at their side, with visual evidence of movement that suggests placing an item into the bag, consistent with hiding unpaid merchandise. The L1 qty_spike event aligns with this observed multi-frame behavior of concealing an item.","latency_ms":3151.3},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is browsing clothing racks, standing in front of a rack and appearing to examine items. There is no visual evidence of concealment (e.g., putting items into bag/pocket/clothes) or hiding behavior across frames. The L1 event 'qty_spike' with 'handheld_peak>=2' may indicate brief handling but is consistent with normal shopping (e.g., picking up multiple items to compare), not theft. No intent to steal is visible.","latency_ms":3486.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen browsing through clothing items on the rack, picking up and examining garments. There is no visible concealment of merchandise into a bag, pocket, or under clothes across the frames. The behavior aligns with normal shopping activity.","latency_ms":1982.4}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_71__conceal__14","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The customer is repeatedly reaching into their open bag while browsing clothing racks, with L1 event data indicating a concealment event under clothes, consistent with multi-frame behavior of hiding an unpaid item.","latency_ms":2743.9,"agreement_hint":"keep_ok","center_ts":662.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__conceal__14&file=kf_00_661.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__conceal__14&file=kf_01_662.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__conceal__14&file=kf_02_662.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__conceal__14&file=kf_03_663.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The keyframes show a person browsing clothing racks with a shoulder bag, but no clear concealment action (e.g., placing merchandise into the bag or under clothes) is visible across the frames. The L1 conceal hint is not corroborated by visual evidence.","latency_ms":1465.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer is repeatedly reaching into their open bag while browsing clothing racks, with L1 event data indicating a concealment event under clothes, consistent with multi-frame behavior of hiding an unpaid item.","latency_ms":2743.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 1.0) indicates the person likely concealed an item under their clothes. The person is standing near a clothing rack, and while no explicit visual of the concealment is seen in these frames, the consistent context and high-confidence L1 signal support concealment intent. No payment or visible return to shelf occurs, and the behavior aligns with shoplifting via under-clothes concealment.","latency_ms":2903.3},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item under their clothing, which is a clear concealment behavior indicating intent to shoplift. This is supported by the L1 event 'conceal' and the visual evidence of the item being hidden.","latency_ms":1812.0}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_71__qty_spike__15","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Across sequential frames, the customer uses their open hand to move clothing on the rack while their large shoulder bag is positioned at their side, with visual evidence of the hand moving toward the bag area consistent with hiding an unpaid item; the L1 qty_spike event provides supporting context for potential concealment, matching multi-frame behavior of hiding merchandise in a personal bag.","latency_ms":3954.2,"agreement_hint":"keep_ok","center_ts":665.9666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__qty_spike__15&file=kf_00_664.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__qty_spike__15&file=kf_01_665.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__qty_spike__15&file=kf_02_666.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__qty_spike__15&file=kf_03_667.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a shopper browsing clothing racks with a shoulder bag; no visible concealment into bag, pockets, or clothing is evident across the sequence. The L1 qty_spike is a soft hint only and lacks matching visual concealment evidence.","latency_ms":1122.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the customer uses their open hand to move clothing on the rack while their large shoulder bag is positioned at their side, with visual evidence of the hand moving toward the bag area consistent with hiding an unpaid item; the L1 qty_spike event provides supporting context for potential concealment, matching multi-frame behavior of hiding merchandise in a personal bag.","latency_ms":3954.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is browsing clothing racks, standing in front of merchandise, and appears to be examining items. There is no visual evidence of concealment (e.g., putting items into bag/pocket/clothes) or hiding behavior across the frames. The L1 event 'qty_spike' with 'handheld_peak>=2' may indicate brief handling but does not confirm theft without visible concealment. Since the person remains in the open, interacting with items normally (e.g., looking, possibly touching), this falls under normal shopping behavior.","latency_ms":3364.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is seen browsing through clothing items on the rack, picking up and examining garments. There is no visible concealment of merchandise into a bag, pocket, or under clothes. The behavior appears consistent with normal shopping activity.","latency_ms":1965.9}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_87__7","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Across the sequence of frames, the customer is observed interacting with clothing items near the rack, moving toward her patterned bag, and positioning items in a manner consistent with hiding unpaid merchandise in her bag, which aligns with multi-frame behavior indicating concealment of products.","latency_ms":3572.6,"agreement_hint":"keep_ok","center_ts":810.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__7&file=kf_00_809.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__7&file=kf_01_810.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__7&file=kf_02_810.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__7&file=kf_03_811.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The person is seen browsing and handling clothing on racks without any visible concealment into a bag, pocket, or clothing. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1384.0},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across the sequence of frames, the customer is observed interacting with clothing items near the rack, moving toward her patterned bag, and positioning items in a manner consistent with hiding unpaid merchandise in her bag, which aligns with multi-frame behavior indicating concealment of products.","latency_ms":3572.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#87) is seen repeatedly interacting with clothing items in a manner suggesting concealment: she bends down near the floor, reaches into a lower rack area where items are less visible, and appears to manipulate items while partially obscured by her body and bag. Her posture and actions—especially the repeated bending and reaching into low areas without placing items in a visible cart or basket—align with typical shoplifting behavior of hiding merchandise on the person. The L1 event 'qty_spike' and 'taken_proxy>=2' support this, but the visual evidence of concealment (e.g., hiding items under clothes or in bag) is consistent across frames. No clear checkout or return to shelf is observed.","latency_ms":3232.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen picking up a red garment and placing it into her bag, which indicates an intent to conceal unpaid merchandise. This behavior aligns with the 'conceal_unpaid' label as she actively hides the item from view.","latency_ms":1893.5}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_87__conceal__16","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Multi-frame visual evidence shows the customer moving an item toward her hip pocket (consistent with the L1 conceal event subtype of pocket), with trajectory and model score supporting hiding an unpaid product on her person rather than normal shopping actions.","latency_ms":3366.1,"agreement_hint":"keep_ok","center_ts":807.5666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__conceal__16&file=kf_00_806.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__conceal__16&file=kf_01_807.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__conceal__16&file=kf_02_807.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__conceal__16&file=kf_03_808.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The person is seen moving through the store and placing an item into a bag/pocket area at the hip, consistent with concealment behavior across multiple frames.","latency_ms":1467.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Multi-frame visual evidence shows the customer moving an item toward her hip pocket (consistent with the L1 conceal event subtype of pocket), with trajectory and model score supporting hiding an unpaid product on her person rather than normal shopping actions.","latency_ms":3366.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (1.0) and high model score (0.85), indicates the person likely concealed an item in their pocket or waist area. The person's posture and movement near the clothing racks, along with the absence of the item in visible hands or cart, support concealment intent rather than browsing or checkout. No payment is observed, and the risk score is low but not zero, suggesting the act may be subtle but still identifiable as concealment.","latency_ms":2807.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item into her bag, which is consistent with concealment behavior. The L1 event 'conceal' further supports this inference, as it indicates a potential attempt to hide unpaid merchandise.","latency_ms":2311.6}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_87__qty_spike__17","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Across the sequence of frames, the customer is observed taking a red garment from the clothing rack and moving it toward her large patterned bag, consistent with hiding an unpaid product in her bag. The L1 qty_spike event aligns with the multi-frame action of taking an item to conceal it, matching the visual evidence of hiding merchandise.","latency_ms":3449.5,"agreement_hint":"keep_ok","center_ts":810.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__qty_spike__17&file=kf_00_809.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__qty_spike__17&file=kf_01_810.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__qty_spike__17&file=kf_02_810.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__qty_spike__17&file=kf_03_811.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The person is seen browsing and handling clothing on racks without any visible concealment into a bag, pocket, or clothing. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1491.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across the sequence of frames, the customer is observed taking a red garment from the clothing rack and moving it toward her large patterned bag, consistent with hiding an unpaid product in her bag. The L1 qty_spike event aligns with the multi-frame action of taking an item to conceal it, matching the visual evidence of hiding merchandise.","latency_ms":3449.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#87) is seen repeatedly interacting with merchandise in a way that suggests concealment: she bends down near the floor, reaches into a low clothing rack, and appears to retrieve items without placing them in a visible basket or cart. Her body posture and hand movements—particularly reaching under or behind racks while keeping her back partially turned—indicate an intent to hide items on her person (e.g., in her bag or clothing). The L1 event 'qty_spike' with 'taken_proxy>=2' and 'take_burst>=2/25s' supports rapid, repeated handling of items, consistent with shoplifting behavior rather than normal browsing. No payment or checkout is observed, and no items are visibly placed in a cart. This aligns with 'conceal_unpaid' as defined: hiding items on the body via multi-frame behavior.","latency_ms":5520.3},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen picking up a red garment and placing it into their bag, which indicates an intent to conceal unpaid merchandise. This behavior aligns with shoplifting intent across multiple frames.","latency_ms":1757.9}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_8__conceal__2","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual (P#8) is observed over multiple frames moving an item toward their hip pocket, consistent with the L1 conceal event subtype of pocket concealment, showing multi-frame behavior of hiding an unpaid item on their person.","latency_ms":3069.5,"agreement_hint":"keep_ok","center_ts":25.966666666666665,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__conceal__2&file=kf_00_24.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__conceal__2&file=kf_01_25.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__conceal__2&file=kf_02_26.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__conceal__2&file=kf_03_27.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a conceal action at the hip/pocket with a high model score, and the keyframes show the person in the act of handling merchandise near their body in a manner consistent with concealment. While the visual evidence is not perfectly clear, the combination of the L1 event and the observed behavior supports a concealment determination.","latency_ms":1217.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#8) is observed over multiple frames moving an item toward their hip pocket, consistent with the L1 conceal event subtype of pocket concealment, showing multi-frame behavior of hiding an unpaid item on their person.","latency_ms":3069.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view) and high model score (0.85), strongly indicates the person is concealing an item in their pocket or clothing. The multi-frame behavior shows the person holding items while moving toward the hip area, consistent with hiding merchandise without payment. This aligns with the definition of 'conceal_unpaid' — hiding a product on the body — not just browsing.","latency_ms":3059.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen making a deliberate motion to conceal an item into their pocket, consistent with shoplifting behavior. The L1 event 'conceal' further supports this inference.","latency_ms":2068.8}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting041_x264__C_10__conceal__2","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event indicates a conceal event under clothes, with model score 0.85 and subtype 'under_clothes'; visual evidence across frames shows the individual in the pink outfit adjusting their upper body/scarf area consistent with hiding an item under clothing, matching the concealment behavior.","latency_ms":2897.5,"agreement_hint":"keep_ok","center_ts":100.36666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_10__conceal__2&file=kf_00_99.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_10__conceal__2&file=kf_01_100.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_10__conceal__2&file=kf_02_100.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_10__conceal__2&file=kf_03_101.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.4,"agreement_hint":"uncertain","rationale":"The L1 event suggests concealment under clothes, but the keyframes show only people standing and browsing; no clear visual evidence of hiding merchandise on the body is visible across the frames.","latency_ms":1360.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a conceal event under clothes, with model score 0.85 and subtype 'under_clothes'; visual evidence across frames shows the individual in the pink outfit adjusting their upper body/scarf area consistent with hiding an item under clothing, matching the concealment behavior.","latency_ms":2897.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high trajectory score (0.59) + dwell ratio (0.83) indicates sustained, suspicious behavior near the body. The person (C#10, P#10) is standing at the counter while holding an item up near their head/shoulder area for multiple frames — a posture consistent with hiding an item under clothing or in a bag not visible to camera. No payment occurs, and no clear return to shelf or cart is observed. This matches the definition of 'conceal_unpaid' where concealment into clothing is inferred from multi-frame behavior and context, despite lack of direct visual proof of the item being hidden.","latency_ms":3515.4},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and the visual evidence of a person placing an item under their clothing strongly indicate intent to steal by concealing unpaid merchandise.","latency_ms":2046.4}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting041_x264__C_11__0","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Multi-frame behavior shows the individual in the pink outfit moving items toward their body, with actions consistent with hiding unpaid merchandise, supported by the L1 qty_spike event indicating an unusual number of items were taken from the shelf area.","latency_ms":3187.1,"agreement_hint":"keep_ok","center_ts":137.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__0&file=kf_00_136.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__0&file=kf_01_137.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__0&file=kf_02_137.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__0&file=kf_03_138.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and moving through the store; no clear concealment into bag, pocket, or clothing is visible across the sequence.","latency_ms":1150.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Multi-frame behavior shows the individual in the pink outfit moving items toward their body, with actions consistent with hiding unpaid merchandise, supported by the L1 qty_spike event indicating an unusual number of items were taken from the shelf area.","latency_ms":3187.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person in maroon (C#11) is seen moving toward the exit while holding an item close to their body, and then appears to duck or turn quickly near the doorway—consistent with concealing merchandise under clothing or into a bag. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, and the multi-frame behavior shows intent to hide rather than return or pay. No visible checkout or return occurs.","latency_ms":2428.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are at a checkout counter, with one person appearing to pay or complete a transaction while the other waits nearby. There is no visible concealment of merchandise into bags, pockets, or clothing, and their behavior aligns with typical checkout activity.","latency_ms":1699.8}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting041_x264__C_11__conceal__3","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Visual evidence across frames shows a person placing an item into a pocket (consistent with the L1 conceal event subtype of pocket) while moving toward the exit, with multi-frame behavior indicating hiding an unpaid item rather than normal shopping or checkout.","latency_ms":3198.0,"agreement_hint":"keep_ok","center_ts":124.76666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__conceal__3&file=kf_00_123.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__conceal__3&file=kf_01_124.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__conceal__3&file=kf_02_125.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__conceal__3&file=kf_03_125.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The keyframes show individuals near a counter with bags, but no clear concealment of unpaid merchandise into pockets or clothing is visible. The L1 conceal event is a soft hint, but visual evidence does not confirm shoplifting intent.","latency_ms":1637.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Visual evidence across frames shows a person placing an item into a pocket (consistent with the L1 conceal event subtype of pocket) while moving toward the exit, with multi-frame behavior indicating hiding an unpaid item rather than normal shopping or checkout.","latency_ms":3198.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (product vanishing from view after interaction) and dwell ratio of 1.0, strongly indicates concealment. The person in the pink dress is at the counter, and the visual flow suggests they placed an item into a pocket or under clothing near the hip area—consistent with multi-frame concealment intent. No payment is observed, and the risk score, though low, aligns with the soft signal. This meets the criteria for 'conceal_unpaid' as defined: hiding on the body without visible checkout.","latency_ms":3176.4},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The person is at the checkout counter, interacting with the cashier and placing items into a shopping bag. There is no evidence of concealment or hiding unpaid merchandise. The behavior aligns with normal checkout procedures.","latency_ms":2201.0}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting041_x264__C_11__qty_spike__4","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Multi-frame behavior shows the customer in the pink dress moving items toward her body, with actions consistent with hiding unpaid merchandise, supported by the L1 qty_spike event indicating a quantity change that aligns with concealment intent across the sequence of frames.","latency_ms":3784.6,"agreement_hint":"keep_ok","center_ts":137.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__qty_spike__4&file=kf_00_136.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__qty_spike__4&file=kf_01_137.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__qty_spike__4&file=kf_02_137.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__qty_spike__4&file=kf_03_138.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and moving through the store; no clear concealment into bag, pocket, or clothing is visible across the sequence. The L1 qty_spike is a soft hint only and lacks matching visual evidence of hiding merchandise.","latency_ms":1958.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Multi-frame behavior shows the customer in the pink dress moving items toward her body, with actions consistent with hiding unpaid merchandise, supported by the L1 qty_spike event indicating a quantity change that aligns with concealment intent across the sequence of frames.","latency_ms":3784.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person in maroon (C#11) is seen moving toward the exit while holding an item close to their body, and then appears to duck or turn quickly near the doorway—consistent with concealing merchandise under clothing or into a bag. The L1 event 'qty_spike' with multiple takes and handheld peak supports this intent, and no payment or return action is observed. The behavior across frames shows clear concealment intent rather than browsing or checkout.","latency_ms":2752.3},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are at a checkout counter, with one person appearing to be in the process of paying or handing over items. There is no visible concealment of merchandise into bags, pockets, or under clothing. The behavior aligns with normal checkout activity.","latency_ms":1687.7}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting041_x264__C_13__conceal__6","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The woman in the maroon sari is seen moving an item toward her hip pocket across sequential frames, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior showing intent to hide the unpaid item on her person.","latency_ms":2422.1,"agreement_hint":"keep_ok","center_ts":360.76666666666665,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__conceal__6&file=kf_00_359.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__conceal__6&file=kf_01_360.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__conceal__6&file=kf_02_361.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__conceal__6&file=kf_03_361.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a conceal action at the hip/pocket with a model score of 0.85, and the keyframes show a person in a maroon outfit standing near a counter with items, consistent with hiding merchandise on the body.","latency_ms":3158.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The woman in the maroon sari is seen moving an item toward her hip pocket across sequential frames, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior showing intent to hide the unpaid item on her person.","latency_ms":2422.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after approach) and high model score (0.85), strongly suggests the person concealed an item in their pocket or clothing. The multi-frame behavior shows the person standing near the counter, then turning away while holding something near their hip area—consistent with hiding merchandise. No payment is observed, and no clear return to shelf or cart placement occurs. This meets the criteria for 'conceal_unpaid' as defined: hiding product on body without visible payment intent.","latency_ms":3111.4},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is standing at a checkout counter with items placed on the counter, indicating they are in the process of paying for their purchases. There is no evidence of concealment or hiding of merchandise.","latency_ms":1692.1}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting041_x264__C_3__conceal__1","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual (P#3) is observed moving an item toward their hip pocket across sequential frames, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior indicating hiding an unpaid product rather than normal shopping actions.","latency_ms":2842.4,"agreement_hint":"keep_ok","center_ts":24.766666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_3__conceal__1&file=kf_00_23.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_3__conceal__1&file=kf_01_24.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_3__conceal__1&file=kf_02_25.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_3__conceal__1&file=kf_03_25.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show a person in a pink outfit with a white bag near the hip area, consistent with hiding merchandise. While the visual evidence is not perfectly clear, the multi-frame behavior and L1 hint support concealment.","latency_ms":1554.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#3) is observed moving an item toward their hip pocket across sequential frames, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior indicating hiding an unpaid product rather than normal shopping actions.","latency_ms":2842.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (product vanishes from view after interaction) and high model score (0.85), strongly indicates the person concealed an item in their pocket or clothing. The multi-frame behavior shows the individual interacting with shelves, then moving away with no visible payment, supporting concealment intent. No clear checkout or return to shelf is observed.","latency_ms":2451.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen reaching up to a high shelf and appears to be placing an item into her pocket or bag, consistent with concealment behavior. This action aligns with the L1 event 'conceal' and suggests intent to shoplift.","latency_ms":2691.1}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting041_x264__C_7__1","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual in the maroon top is seen moving items toward a white bag across consecutive frames, with actions consistent with hiding unpaid merchandise in the bag, matching the definition of concealment of unpaid items.","latency_ms":2300.3,"agreement_hint":"keep_ok","center_ts":173.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__1&file=kf_00_172.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__1&file=kf_01_173.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__1&file=kf_02_173.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__1&file=kf_03_174.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a person holding a white bag and standing near a counter with items, but there is no clear visual evidence of concealing unpaid merchandise into a bag, pocket, or clothing. The behavior appears consistent with normal shopping or carrying a personal bag.","latency_ms":1434.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the maroon top is seen moving items toward a white bag across consecutive frames, with actions consistent with hiding unpaid merchandise in the bag, matching the definition of concealment of unpaid items.","latency_ms":2300.3},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#7) is seen holding a white bag and then appears to place an item into it while standing near the counter. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, and the behavior of placing something into the bag without proceeding to checkout indicates concealment intent. The person’s posture and movement toward the bag, combined with the context of being near the counter but not paying, support shoplifting intent. No clear payment or return action is observed.","latency_ms":2280.3},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the maroon shirt is seen placing an item into their bag, which is a clear act of concealment. This behavior aligns with shoplifting intent as the item is not visibly placed into a shopping cart or basket for checkout.","latency_ms":2273.1}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting041_x264__C_7__conceal__0","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual in the blue top is observed over consecutive frames moving an item toward their hip pocket (consistent with the L1 conceal event subtype of pocket), showing multi-frame behavior of hiding an unpaid product on their person.","latency_ms":2859.8,"agreement_hint":"keep_ok","center_ts":15.566666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__conceal__0&file=kf_00_14.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__conceal__0&file=kf_01_15.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__conceal__0&file=kf_02_15.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__conceal__0&file=kf_03_16.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.4,"agreement_hint":"uncertain","rationale":"The L1 event suggests a concealment into a pocket at the hip, but the provided keyframes show only general store activity with people browsing and holding items. No clear visual evidence of hiding merchandise in clothing or a bag is visible across the frames.","latency_ms":1578.8},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the blue top is observed over consecutive frames moving an item toward their hip pocket (consistent with the L1 conceal event subtype of pocket), showing multi-frame behavior of hiding an unpaid product on their person.","latency_ms":2859.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with the person's posture (bending slightly toward the counter while holding a child), suggests an attempt to hide an item in their clothing or pocket. The multi-frame context shows no clear payment action, and the person is not visibly placing items into a cart or basket. The high model score (0.85) and legacy streak (5) support this interpretation despite low trajectory evidence.","latency_ms":2778.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is at a checkout counter, interacting with the cashier and appears to be in the process of paying for items. There is no visible concealment or intent to hide merchandise.","latency_ms":1801.8}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting041_x264__C_7__qty_spike__5","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Across sequential frames, the individual in the maroon top is seen moving items toward their white bag, with actions consistent with hiding unpaid merchandise into the bag rather than normal shopping activity. The L1 qty_spike event aligns with this observed behavior of transferring items to a bag without visible checkout activity.","latency_ms":3093.6,"agreement_hint":"keep_ok","center_ts":173.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__qty_spike__5&file=kf_00_172.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__qty_spike__5&file=kf_01_173.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__qty_spike__5&file=kf_02_173.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__qty_spike__5&file=kf_03_174.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a person holding a white bag and interacting with merchandise at a counter, but there is no clear visual evidence of concealing unpaid items into pockets, clothing, or a personal bag. The behavior appears consistent with normal shopping or browsing.","latency_ms":1362.8},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the individual in the maroon top is seen moving items toward their white bag, with actions consistent with hiding unpaid merchandise into the bag rather than normal shopping activity. The L1 qty_spike event aligns with this observed behavior of transferring items to a bag without visible checkout activity.","latency_ms":3093.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#7) is seen holding a white bag and repeatedly reaching toward the counter area while another person stands nearby. The L1 event 'qty_spike' with 'taken_proxy>=2' suggests multiple items were taken, and the behavior of lingering near the counter without placing items in a cart or proceeding to checkout indicates intent to conceal unpaid merchandise. The white bag appears to be used for hiding items, consistent with concealment behavior across frames.","latency_ms":3008.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the maroon top is seen placing an item into their bag, which is a clear act of concealment. This behavior aligns with shoplifting intent as they attempt to hide unpaid merchandise.","latency_ms":1617.9}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"zenodo_theft__main220_Trim5__C_1__conceal__0","clip_id":"zenodo_theft__main220_Trim5","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The customer is seen moving an item from the shelf toward his hip pocket (as indicated by L1 conceal event subtype pocket) across sequential frames, hiding the item from view rather than placing it into the shopping basket, consistent with concealing unpaid merchandise.","latency_ms":2790.8,"agreement_hint":"keep_ok","center_ts":1.5666666666666667,"corpus":"zenodo","media_url":null,"playable":false,"keyframe_urls":["/api/path1_case_keyframe?case_id=zenodo_theft__main220_Trim5__C_1__conceal__0&file=kf_00_0.43s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main220_Trim5__C_1__conceal__0&file=kf_01_1.20s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main220_Trim5__C_1__conceal__0&file=kf_02_1.93s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main220_Trim5__C_1__conceal__0&file=kf_03_2.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person is seen holding a shopping basket while reaching toward the shelf, and the L1 event indicates a concealment action into a pocket at the hip. The multi-frame sequence shows the person moving through the aisle with the basket, consistent with hiding merchandise rather than normal browsing or checkout.","latency_ms":1373.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer is seen moving an item from the shelf toward his hip pocket (as indicated by L1 conceal event subtype pocket) across sequential frames, hiding the item from view rather than placing it into the shopping basket, consistent with concealing unpaid merchandise.","latency_ms":2790.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' and zone 'hip', supported by trajectory evidence showing co-disappearance (item vanishes from view after interaction) and high model score (0.85). Visually, the person picks up an item (frame 1), then in subsequent frames (2–4) walks away while holding the basket but also appears to have the item tucked into their pocket or waist area—consistent with concealment behavior. No visible placement into cart/basket or return to shelf occurs; no checkout is seen. This meets the criteria for 'conceal_unpaid' as defined: hiding product on body with multi-frame intent, not just a single grab.","latency_ms":3486.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is holding a shopping basket and examining products on the shelves, consistent with normal shopping behavior. There is no visible concealment of merchandise into a bag, pocket, or under clothing across the frames.","latency_ms":2492.2}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"zenodo_theft__main303_Trim1__C_1__0","clip_id":"zenodo_theft__main303_Trim1","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Across sequential frames, the individual is seen adjusting a large black bag against their torso, then lifting it to their shoulder in a manner consistent with concealing unpaid merchandise within the bag, with no visible payment activity to indicate normal checkout. The L1 qty_spike event aligns with the behavior of taking items to conceal, matching multi-frame hiding intent.","latency_ms":3483.6,"agreement_hint":"keep_ok","center_ts":3.566666666666667,"corpus":"zenodo","media_url":null,"playable":false,"keyframe_urls":["/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__0&file=kf_00_2.43s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__0&file=kf_01_3.20s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__0&file=kf_02_3.93s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__0&file=kf_03_3.93s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.6,"agreement_hint":"uncertain","rationale":"The frames show a man walking down an aisle holding a black bag, but there is no clear visual evidence of him placing unpaid merchandise into the bag or concealing items on his person. The L1 qty_spike event is a soft hint and not sufficient without matching visual concealment evidence.","latency_ms":918.1},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the individual is seen adjusting a large black bag against their torso, then lifting it to their shoulder in a manner consistent with concealing unpaid merchandise within the bag, with no visible payment activity to indicate normal checkout. The L1 qty_spike event aligns with the behavior of taking items to conceal, matching multi-frame hiding intent.","latency_ms":3483.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is holding a black bag and repeatedly brings his hand to the front of his torso (e.g., frame 1 and 2), consistent with placing an item inside the bag or under his shirt. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, but more importantly, the multi-frame behavior—specifically the repeated hand-to-bag/torso motion while walking through the aisle—indicates concealment intent rather than normal shopping. No items are seen placed in a cart or basket; instead, the bag is carried openly but used for hiding. This matches the definition of 'conceal_unpaid': putting a product into a bag/pocket/under clothes, inferred from overall multi-frame behavior.","latency_ms":3735.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their backpack while walking through the aisle, which indicates an intent to conceal unpaid merchandise. This behavior aligns with shoplifting intent.","latency_ms":2044.7}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"zenodo_theft__main303_Trim1__C_1__conceal__0","clip_id":"zenodo_theft__main303_Trim1","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Across sequential frames, the individual adjusts a large black bag while in the snack aisle, with L1 event data indicating concealment under clothes (consistent with hiding unpaid merchandise). The multi-frame behavior shows intentional manipulation of the bag to hide items, matching the conceal_unpaid label criteria.","latency_ms":3569.4,"agreement_hint":"keep_ok","center_ts":1.5666666666666667,"corpus":"zenodo","media_url":null,"playable":false,"keyframe_urls":["/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__conceal__0&file=kf_00_0.43s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__conceal__0&file=kf_01_1.20s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__conceal__0&file=kf_02_1.93s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__conceal__0&file=kf_03_2.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The sequence of frames shows the person holding a black backpack open in front of their torso while manipulating an item near the bag's opening, consistent with concealing merchandise. The L1 event subtype 'under_clothes' and model score support this, and the multi-frame behavior indicates hiding intent rather than normal browsing.","latency_ms":1689.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the individual adjusts a large black bag while in the snack aisle, with L1 event data indicating concealment under clothes (consistent with hiding unpaid merchandise). The multi-frame behavior shows intentional manipulation of the bag to hide items, matching the conceal_unpaid label criteria.","latency_ms":3569.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) is supported by visual evidence: the person repeatedly reaches toward the right side of their body while holding a large black bag, then later walks forward with the bag held close to their torso—consistent with hiding an item under clothing or in the bag. The trajectory analysis shows co-disappear (1.0) and dwell ratio 1.0, indicating sustained focus on concealment behavior. No visible payment or return actions occur; no items are placed in cart or basket. This aligns with 'conceal_unpaid' per rules: multi-frame intent to hide unpaid merchandise, not just browsing.","latency_ms":3224.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen walking through the aisle while adjusting a backpack, which aligns with the L1 event 'conceal' indicating potential concealment of unpaid merchandise. The behavior suggests an intent to hide items on their person.","latency_ms":2615.3}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"zenodo_theft__main303_Trim1__C_1__qty_spike__1","clip_id":"zenodo_theft__main303_Trim1","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual is seen placing a black bag under their shirt (concealing it against their torso) and then securing it over their shoulder, consistent with hiding an unpaid item on their person across sequential frames. The L1 qty_spike event supports the inference of taking items to conceal, matching the visual behavior of hiding a bag under clothing.","latency_ms":2930.9,"agreement_hint":"keep_ok","center_ts":3.566666666666667,"corpus":"zenodo","media_url":null,"playable":false,"keyframe_urls":["/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__qty_spike__1&file=kf_00_2.43s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__qty_spike__1&file=kf_01_3.20s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__qty_spike__1&file=kf_02_3.93s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__qty_spike__1&file=kf_03_3.93s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.6,"agreement_hint":"uncertain","rationale":"The frames show a man walking down an aisle holding a black bag, but there is no visible merchandise being concealed into the bag, pockets, or clothing. The L1 qty_spike event is a soft hint only and lacks matching visual evidence of concealment.","latency_ms":1410.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual is seen placing a black bag under their shirt (concealing it against their torso) and then securing it over their shoulder, consistent with hiding an unpaid item on their person across sequential frames. The L1 qty_spike event supports the inference of taking items to conceal, matching the visual behavior of hiding a bag under clothing.","latency_ms":2930.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is walking down the aisle with a black bag slung over his shoulder, and in the first frame, he is seen adjusting or pressing his hand against the front of the bag near his chest—consistent with placing or securing an item inside. His posture and hand motion suggest concealment rather than casual carrying. The L1 event 'qty_spike' (with taken_proxy=2) supports multiple items being taken, and combined with the visual of him holding the bag close to his body while walking away from shelves, this indicates intent to hide unpaid merchandise. No items are seen being placed in a cart or returned to shelves; instead, the bag’s position and his actions align with concealment.","latency_ms":3344.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their backpack while walking through the aisle, which indicates an intent to conceal unpaid merchandise. This behavior aligns with the 'conceal_unpaid' label as it shows a clear action of hiding an item on their person.","latency_ms":8476.4}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"dcsass__demo_dcsass_03__C_2__conceal__0","clip_id":"dcsass__demo_dcsass_03","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with the trajectory evidence showing co-disappearance (item vanishes from view after approach) and high dwell ratio (0.833), strongly suggests the person is concealing an item in their pocket or clothing. The person's hand movements near the hip area across multiple frames (13:09:17–13:09:19) are consistent with hiding merchandise, and the risk score, though low, aligns with this behavior. No visual of payment or return to shelf occurs, and the action is not typical browsing.","latency_ms":3145.7,"agreement_hint":"keep_ok","center_ts":1.9666666666666666,"corpus":"demo","media_url":"/api/media/sample/demo_dcsass_03.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=dcsass__demo_dcsass_03__C_2__conceal__0&file=kf_00_0.83s.jpg","/api/path1_case_keyframe?case_id=dcsass__demo_dcsass_03__C_2__conceal__0&file=kf_01_1.60s.jpg","/api/path1_case_keyframe?case_id=dcsass__demo_dcsass_03__C_2__conceal__0&file=kf_02_2.33s.jpg","/api/path1_case_keyframe?case_id=dcsass__demo_dcsass_03__C_2__conceal__0&file=kf_03_2.97s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The L1 event suggests a concealment into a pocket at the hip, but the provided keyframes are too blurry and low-resolution to visually confirm any item being hidden. The person in the blue cap is seen handling something near their chest/waist, but without clear visual evidence of the item or the concealment action, a definitive label cannot be assigned.","latency_ms":1409.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Multi-frame visual evidence shows a customer (person P#2) moving an item toward their hip pocket, consistent with the L1 conceal event subtype of pocket concealment, indicating hiding an unpaid product on their body.","latency_ms":2886.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with the trajectory evidence showing co-disappearance (item vanishes from view after approach) and high dwell ratio (0.833), strongly suggests the person is concealing an item in their pocket or clothing. The person's hand movements near the hip area across multiple frames (13:09:17–13:09:19) are consistent with hiding merchandise, and the risk score, though low, aligns with this behavior. No visual of payment or return to shelf occurs, and the action is not typical browsing.","latency_ms":3145.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen making a deliberate motion consistent with concealing an item into their pocket or clothing, as indicated by the L1 event 'conceal' and supported by the visual evidence of their hand positioning near their hip area.","latency_ms":2629.2}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting012_x264__C_14__conceal__7","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (1.0) and high dwell ratio (0.833), indicates the customer likely concealed an item in their pocket or waist area. The person’s posture—bending slightly, hand near hip/low torso—and the absence of visible payment or cart placement across multiple frames support concealment intent rather than browsing or checkout. No clear visual of the item being hidden is seen in these frames, but the multi-frame behavioral pattern and L1 metadata strongly suggest unpaid concealment.","latency_ms":3048.4,"agreement_hint":"keep_ok","center_ts":562.7666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_14__conceal__7&file=kf_00_561.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_14__conceal__7&file=kf_01_562.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_14__conceal__7&file=kf_02_563.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_14__conceal__7&file=kf_03_563.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show the person in a position consistent with hiding merchandise near the waist area while browsing the display.","latency_ms":1548.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.85,"agreement_hint":"miss_pos","rationale":"The person in the white shirt is handling and examining fabric products on the store table, which is normal shopping behavior consistent with browsing merchandise, with no visual evidence of concealing unpaid items into a bag, pocket, or under clothes. The L1 conceal event is a soft hint that is not supported by clear visual evidence of hiding merchandise.","latency_ms":3134.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (1.0) and high dwell ratio (0.833), indicates the customer likely concealed an item in their pocket or waist area. The person’s posture—bending slightly, hand near hip/low torso—and the absence of visible payment or cart placement across multiple frames support concealment intent rather than browsing or checkout. No clear visual of the item being hidden is seen in these frames, but the multi-frame behavioral pattern and L1 metadata strongly suggest unpaid concealment.","latency_ms":3048.4},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the foreground is seen placing an item into their pocket, consistent with concealment behavior. The L1 event 'conceal' further supports this inference, as it aligns with the visual evidence of hiding unpaid merchandise.","latency_ms":1749.9}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting012_x264__C_16__conceal__5","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 0.833) indicates the person likely concealed an item under their clothes. The person is seated at a table with fabrics, and their posture and arm movement suggest hiding something—consistent with concealment intent. No payment or visible return to shelf occurs; no clear checkout action. This matches 'conceal_unpaid' per rules: multi-frame hiding behavior, not just browsing.","latency_ms":3244.6,"agreement_hint":"keep_ok","center_ts":441.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_16__conceal__5&file=kf_00_440.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_16__conceal__5&file=kf_01_440.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_16__conceal__5&file=kf_02_441.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_16__conceal__5&file=kf_03_442.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.4,"agreement_hint":"uncertain","rationale":"The keyframes show a person seated at a counter handling fabric and interacting with another person, but no clear concealment into a bag, pocket, or under clothes is visible across the frames. The L1 conceal hint is not corroborated by obvious visual evidence in these images.","latency_ms":1179.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a conceal event under clothes, with model score 0.85, and multi-frame behavior aligns with hiding merchandise on the person's body, matching the conceal_unpaid label criteria.","latency_ms":2964.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 0.833) indicates the person likely concealed an item under their clothes. The person is seated at a table with fabrics, and their posture and arm movement suggest hiding something—consistent with concealment intent. No payment or visible return to shelf occurs; no clear checkout action. This matches 'conceal_unpaid' per rules: multi-frame hiding behavior, not just browsing.","latency_ms":3244.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is engaged in a transaction at the checkout counter, handling items on the table and interacting with the cashier. There is no evidence of concealment or hiding of merchandise.","latency_ms":1807.7}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting012_x264__C_20__conceal__4","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after interaction) and high model score (0.85), strongly indicates the person is concealing merchandise in their pocket or clothing. The multi-frame behavior shows them handling fabric items near the counter, then moving with a posture suggesting hidden placement—consistent with shoplifting intent. No payment or visible return to shelf occurs.","latency_ms":2698.9,"agreement_hint":"keep_ok","center_ts":417.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_20__conceal__4&file=kf_00_416.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_20__conceal__4&file=kf_01_416.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_20__conceal__4&file=kf_02_417.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_20__conceal__4&file=kf_03_418.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a model score of 0.85, and the keyframes show the person in an orange top interacting with merchandise at a display table. While the exact concealment is not perfectly clear in the low-resolution frames, the multi-frame behavior and L1 evidence suggest the person is hiding unpaid merchandise on their body.","latency_ms":1494.8},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the yellow top interacts with merchandise across multiple frames, with L1 event indicating concealment in a hip pocket; multi-frame behavior shows handling of goods consistent with hiding unpaid items, matching the conceal_unpaid criteria.","latency_ms":3008.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after interaction) and high model score (0.85), strongly indicates the person is concealing merchandise in their pocket or clothing. The multi-frame behavior shows them handling fabric items near the counter, then moving with a posture suggesting hidden placement—consistent with shoplifting intent. No payment or visible return to shelf occurs.","latency_ms":2698.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing a large, patterned fabric item into their bag or pocket area near the checkout counter, consistent with concealment behavior. The surrounding context of other shoppers and staff does not contradict this intent.","latency_ms":2191.8}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting012_x264__C_21__conceal__6","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappearance (item vanishes from view after interaction) and high model score (0.85), strongly suggests the person is concealing an item in their pocket or clothing. The multi-frame behavior shows the individual standing near a large fabric display, interacting closely with it, and maintaining a posture consistent with hiding something at the hip. No payment or visible placement into a cart occurs; no clear return to shelf. This aligns with 'conceal_unpaid' per rules: concealment into pocket/clothes inferred across frames, not just a single grab.","latency_ms":3355.0,"agreement_hint":"keep_ok","center_ts":489.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_21__conceal__6&file=kf_00_488.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_21__conceal__6&file=kf_01_488.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_21__conceal__6&file=kf_02_489.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_21__conceal__6&file=kf_03_490.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the yellow and black top is seen handling merchandise at the table and then moving her hands toward her hip/pocket area, consistent with the L1 conceal event (subtype pocket, zone hip). The multi-frame sequence shows her interacting with items and then concealing them on her body rather than carrying them visibly or placing them in a cart.","latency_ms":1443.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment event in the hip pocket zone, with supporting trajectory evidence, and multi-frame behavior aligns with hiding an unpaid item on the person’s body, matching the conceal_unpaid label criteria.","latency_ms":3062.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappearance (item vanishes from view after interaction) and high model score (0.85), strongly suggests the person is concealing an item in their pocket or clothing. The multi-frame behavior shows the individual standing near a large fabric display, interacting closely with it, and maintaining a posture consistent with hiding something at the hip. No payment or visible placement into a cart occurs; no clear return to shelf. This aligns with 'conceal_unpaid' per rules: concealment into pocket/clothes inferred across frames, not just a single grab.","latency_ms":3355.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is examining a large piece of fabric on a table, which is consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or under clothing, and the actions across the frames suggest she is inspecting the item rather than attempting to steal it.","latency_ms":2522.6}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting012_x264__C_34__conceal__8","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (1.0) and dwell ratio 1.0 across 4 frames, indicates the person likely concealed an item in their pocket or waist area. The person is seated near a table with merchandise, and the timing and behavior align with hiding an item without payment. No visual of the actual concealment is seen, but the multi-frame pattern and high model score (0.85) support this inference.","latency_ms":2752.1,"agreement_hint":"keep_ok","center_ts":659.9666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_34__conceal__8&file=kf_00_658.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_34__conceal__8&file=kf_01_659.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_34__conceal__8&file=kf_02_660.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_34__conceal__8&file=kf_03_661.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The L1 event suggests a concealment into a pocket at the hip, but the provided keyframes do not clearly show a person concealing unpaid merchandise. The frames show a shop setting with people browsing and a person seated, but no visible act of hiding an item into clothing or a bag is evident. Without clear visual confirmation of concealment, the label is uncertain.","latency_ms":1560.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The male individual in the white shirt is observed moving his hand toward his hip pocket (consistent with the L1 event's subtype of pocket concealment) across sequential frames, with multi-frame behavior indicating an action to hide an unpaid item in his clothing pocket, matching the conceal_unpaid definition.","latency_ms":3128.7},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (1.0) and dwell ratio 1.0 across 4 frames, indicates the person likely concealed an item in their pocket or waist area. The person is seated near a table with merchandise, and the timing and behavior align with hiding an item without payment. No visual of the actual concealment is seen, but the multi-frame pattern and high model score (0.85) support this inference.","latency_ms":2752.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item into their pocket (as indicated by the L1 event 'conceal' and visual evidence of hand movement toward the hip area), which constitutes hiding unpaid merchandise on their body.","latency_ms":2347.1}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting012_x264__C_3__conceal__1","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 1.0) indicates the person likely concealed an item under their clothes. The person is standing near the counter with a large fabric item being handled by another person, but the keyframe sequence shows no visible payment or return to shelf; instead, the concealment pattern aligns with shoplifting intent. No clear visual of the item being hidden in this specific frame set, but the L1 context strongly supports concealment intent across frames.","latency_ms":3073.4,"agreement_hint":"keep_ok","center_ts":174.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_3__conceal__1&file=kf_00_173.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_3__conceal__1&file=kf_01_174.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_3__conceal__1&file=kf_02_174.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_3__conceal__1&file=kf_03_175.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the yellow top is seen handling merchandise at the display table and then making movements consistent with tucking or hiding an item under their clothing, matching the L1 conceal event subtype 'under_clothes'.","latency_ms":1282.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer is observed manipulating a large golden fabric item, tucking it under their clothing (consistent with the L1 event subtype 'under_clothes') across consecutive frames, showing clear intent to conceal an unpaid product rather than normal shopping activity.","latency_ms":3036.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 1.0) indicates the person likely concealed an item under their clothes. The person is standing near the counter with a large fabric item being handled by another person, but the keyframe sequence shows no visible payment or return to shelf; instead, the concealment pattern aligns with shoplifting intent. No clear visual of the item being hidden in this specific frame set, but the L1 context strongly supports concealment intent across frames.","latency_ms":3073.4},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is standing at a checkout counter with a large item spread out on the counter, appearing to be in the process of paying or completing a transaction. There is no evidence of concealment or hiding of merchandise.","latency_ms":2250.0}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting012_x264__C_5__conceal__0","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event explicitly flags 'conceal' with subtype 'under_clothes', and the visual sequence shows the customer (C#5, P#5) sitting at the counter while the staff member is distracted; the customer's hand is near their waist/hip area where a yellow item (likely the concealed product) is later seen in the staff member's hand. The trajectory evidence indicates 'below_threshold' and 'co_disappear', consistent with hiding an item under clothes. No payment occurs, and the item is not placed in a visible cart or basket. This meets the criteria for 'conceal_unpaid' as it involves hiding merchandise on the body without intent to pay.","latency_ms":4061.8,"agreement_hint":"keep_ok","center_ts":101.96666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_5__conceal__0&file=kf_00_100.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_5__conceal__0&file=kf_01_101.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_5__conceal__0&file=kf_02_102.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_5__conceal__0&file=kf_03_103.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the yellow top is seen seated and repeatedly interacting with an item near their lap/waist area, with the L1 event indicating concealment under clothes. Across the frames, the item is no longer visible on the table or in hand, suggesting it was hidden on the body.","latency_ms":1400.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the person in the white shirt moves a yellow product from the counter and conceals it under their clothing (pants/waist area), matching the L1 conceal event subtype of under_clothes, with multi-frame behavior showing the product being hidden rather than normal shopping or checkout.","latency_ms":3269.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'under_clothes', and the visual sequence shows the customer (C#5, P#5) sitting at the counter while the staff member is distracted; the customer's hand is near their waist/hip area where a yellow item (likely the concealed product) is later seen in the staff member's hand. The trajectory evidence indicates 'below_threshold' and 'co_disappear', consistent with hiding an item under clothes. No payment occurs, and the item is not placed in a visible cart or basket. This meets the criteria for 'conceal_unpaid' as it involves hiding merchandise on the body without intent to pay.","latency_ms":4061.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is seated at a table in what appears to be a restaurant or dining area, interacting with another person who seems to be an employee or server. There is no evidence of concealment, hiding, or shoplifting intent. The behavior is consistent with normal dining and checkout activities.","latency_ms":2111.1}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting012_x264__C_6__conceal__2","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after interaction) and high model score (0.85), strongly indicates the customer is concealing an item in their pocket or clothing. The person's posture and hand movements near the hip area across frames support this, especially since they are not placing the item in a visible cart or basket. No payment is observed, and the context suggests intent to steal rather than browse.","latency_ms":3213.5,"agreement_hint":"keep_ok","center_ts":199.16666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_6__conceal__2&file=kf_00_198.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_6__conceal__2&file=kf_01_198.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_6__conceal__2&file=kf_02_199.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_6__conceal__2&file=kf_03_200.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the yellow top is seen handling merchandise at the display table and then moving their hands toward their hip/pocket area in a manner consistent with concealing an item, matching the L1 conceal event with pocket/hip subtype.","latency_ms":1571.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer (C#6) is observed over multiple frames moving an item toward their hip pocket, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior showing the item being hidden in their clothing pocket.","latency_ms":3468.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after interaction) and high model score (0.85), strongly indicates the customer is concealing an item in their pocket or clothing. The person's posture and hand movements near the hip area across frames support this, especially since they are not placing the item in a visible cart or basket. No payment is observed, and the context suggests intent to steal rather than browse.","latency_ms":3213.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is standing at a checkout counter with merchandise laid out on the table, appearing to be in the process of paying or completing a transaction. There is no visible concealment of items into bags, pockets, or under clothing, and the behavior aligns with normal checkout procedures.","latency_ms":2099.4}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting012_x264__C_9__conceal__3","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after interaction) and high model score (0.85), strongly indicates the person is concealing an item in their pocket or clothing. The multi-frame behavior shows them leaning over the table, interacting with items, then a clear disappearance of the item from visible space—consistent with concealment rather than browsing or checkout. No payment or return to shelf is observed.","latency_ms":2880.0,"agreement_hint":"keep_ok","center_ts":232.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_9__conceal__3&file=kf_00_231.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_9__conceal__3&file=kf_01_232.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_9__conceal__3&file=kf_02_232.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_9__conceal__3&file=kf_03_233.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The keyframes show a person in a yellow top seated at a counter with another person standing nearby, appearing to handle items on the counter. No clear concealment into a bag, pocket, or clothing is visible across the frames, and the L1 conceal event is not corroborated by obvious visual evidence.","latency_ms":1216.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 conceal event with subtype 'pocket' (hip zone) aligns with multi-frame visual context of the individual's actions, showing behavior consistent with hiding an unpaid item on their person, matching the conceal_unpaid label criteria.","latency_ms":2285.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after interaction) and high model score (0.85), strongly indicates the person is concealing an item in their pocket or clothing. The multi-frame behavior shows them leaning over the table, interacting with items, then a clear disappearance of the item from visible space—consistent with concealment rather than browsing or checkout. No payment or return to shelf is observed.","latency_ms":2880.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The individual is seated at a counter, interacting with a salesperson who appears to be processing a transaction. There are no visible signs of concealment or hiding of merchandise, and the behavior aligns with a normal checkout process.","latency_ms":2280.8}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting014_x264__C_1__conceal__1","clip_id":"ucf_theft__Shoplifting014_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' and zone 'hip', and the visual sequence shows the person (in red/orange attire) turning away from the shelf, bringing their hands toward their hip area while holding a dark item, consistent with pocketing or concealing merchandise under clothing. The multi-frame behavior supports concealment intent rather than browsing or checkout. No payment is observed, and the risk score, though low, aligns with the visual evidence of hiding an item on the body.","latency_ms":2899.1,"agreement_hint":"keep_ok","center_ts":754.7666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting014_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_1__conceal__1&file=kf_00_753.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_1__conceal__1&file=kf_01_754.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_1__conceal__1&file=kf_02_755.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_1__conceal__1&file=kf_03_755.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the orange outfit is seen moving through the store and appears to be concealing an item under her clothing or in a bag, consistent with the L1 conceal event indicating a pocket/hip concealment.","latency_ms":1336.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the patterned top and red pants is observed moving an item from the shelf area toward their hip pocket across consecutive frames, matching the L1 conceal event subtype of pocket concealment, with visual evidence of hiding an unpaid product on their person.","latency_ms":2729.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' and zone 'hip', and the visual sequence shows the person (in red/orange attire) turning away from the shelf, bringing their hands toward their hip area while holding a dark item, consistent with pocketing or concealing merchandise under clothing. The multi-frame behavior supports concealment intent rather than browsing or checkout. No payment is observed, and the risk score, though low, aligns with the visual evidence of hiding an item on the body.","latency_ms":2899.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their pocket or waistband area, which is consistent with concealment behavior. This action, combined with the L1 event 'conceal' and the visual evidence of the item being hidden on the body, strongly suggests intent to steal unpaid merchandise.","latency_ms":1722.4}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting014_x264__C_4__conceal__0","clip_id":"ucf_theft__Shoplifting014_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 0.6667) indicates the person likely concealed an item under clothing. In the frames, the person is seen adjusting her headscarf/face area while holding a garment, which aligns with hiding an item under clothes — a classic shoplifting tactic. No payment or return to shelf is observed, and the behavior is inconsistent with normal browsing.","latency_ms":2715.5,"agreement_hint":"keep_ok","center_ts":87.96666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting014_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_4__conceal__0&file=kf_00_86.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_4__conceal__0&file=kf_01_87.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_4__conceal__0&file=kf_02_88.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_4__conceal__0&file=kf_03_89.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The person in red is seen handling merchandise near a rack and then turning away while adjusting her clothing, consistent with concealing an item under her clothes. The L1 event 'conceal' with subtype 'under_clothes' and high model score supports this, and the multi-frame sequence shows a clear hiding action rather than normal browsing.","latency_ms":1563.0},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer interacts with clothing on a rack, and multi-frame behavior shows an action consistent with hiding an item under her clothing (matching the L1 conceal event subtype of under_clothes), with no visible payment action or return to shelf for the item, indicating concealment of unpaid merchandise.","latency_ms":3259.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 0.6667) indicates the person likely concealed an item under clothing. In the frames, the person is seen adjusting her headscarf/face area while holding a garment, which aligns with hiding an item under clothes — a classic shoplifting tactic. No payment or return to shelf is observed, and the behavior is inconsistent with normal browsing.","latency_ms":2715.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item under their clothing, which is consistent with concealment behavior. The L1 event 'conceal' further supports this inference.","latency_ms":2596.6}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting014_x264__C_77__conceal__2","clip_id":"ucf_theft__Shoplifting014_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with the trajectory evidence showing co-disappearance (item vanishes from visible hand into hip area) and high dwell ratio (0.8), strongly indicates concealment. The person’s posture and movement—reaching toward the hip while holding an item in the other hand, then turning away without placing it in a cart or basket—supports intent to hide unpaid merchandise. No payment or checkout is observed.","latency_ms":2693.6,"agreement_hint":"keep_ok","center_ts":1947.9666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting014_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_77__conceal__2&file=kf_00_1946.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_77__conceal__2&file=kf_01_1947.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_77__conceal__2&file=kf_02_1948.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_77__conceal__2&file=kf_03_1949.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person is seen holding a dark item and moving it toward her hip/pocket area while turning away from the camera, consistent with the L1 conceal event indicating a pocket concealment at the hip. The multi-frame sequence shows the item disappearing from view near her body, suggesting unpaid concealment rather than normal browsing.","latency_ms":1657.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Multi-frame visual evidence shows the customer moving an item toward their hip pocket (consistent with the L1 conceal event subtype of pocket), hiding the item from view as part of a shoplifting-related concealment action.","latency_ms":2608.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with the trajectory evidence showing co-disappearance (item vanishes from visible hand into hip area) and high dwell ratio (0.8), strongly indicates concealment. The person’s posture and movement—reaching toward the hip while holding an item in the other hand, then turning away without placing it in a cart or basket—supports intent to hide unpaid merchandise. No payment or checkout is observed.","latency_ms":2693.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their pocket, which is consistent with concealment behavior. The L1 event 'conceal' further supports this inference.","latency_ms":1917.0}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting030_x264__C_10__conceal__5","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (1.0) and high dwell ratio (0.833), indicates the person likely concealed an item in their pocket or waist area. The person’s posture and hand movement near the hip area across multiple frames support this, and the risk score is low but the visual trajectory pattern strongly suggests concealment rather than normal browsing. No payment or return to shelf is observed.","latency_ms":3096.8,"agreement_hint":"keep_ok","center_ts":222.76666666666668,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_10__conceal__5&file=kf_00_221.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_10__conceal__5&file=kf_01_222.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_10__conceal__5&file=kf_02_223.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_10__conceal__5&file=kf_03_223.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.4,"agreement_hint":"uncertain","rationale":"The overhead frames show multiple shoppers near a display counter, but no clear concealment into a pocket, bag, or clothing is visible. The L1 conceal hint is not sufficiently supported by the visuals, so the action cannot be confirmed.","latency_ms":1275.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#10) is observed moving an item toward their hip pocket across sequential frames, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior consistent with hiding an unpaid product.","latency_ms":2425.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (1.0) and high dwell ratio (0.833), indicates the person likely concealed an item in their pocket or waist area. The person’s posture and hand movement near the hip area across multiple frames support this, and the risk score is low but the visual trajectory pattern strongly suggests concealment rather than normal browsing. No payment or return to shelf is observed.","latency_ms":3096.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their backpack, which is a clear act of concealing unpaid merchandise. This behavior aligns with the 'conceal_unpaid' label as it involves hiding an item on their person without proceeding to checkout.","latency_ms":2385.8}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting030_x264__C_11__1","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer in the blue shirt (C#11) is seen reaching toward a shelf, then quickly moving with a sudden motion while holding an item close to their body. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, and the person’s posture—bending slightly, keeping arms close, and moving away from the display without placing the item in a visible cart or basket—indicates concealment intent. No clear checkout or return action is observed, and the behavior deviates from normal browsing. The presence of other customers nearby does not negate the suspicious multi-frame pattern of hiding merchandise.","latency_ms":3507.0,"agreement_hint":"keep_ok","center_ts":203.16666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__1&file=kf_00_202.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__1&file=kf_01_202.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__1&file=kf_02_203.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__1&file=kf_03_204.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show multiple people in a retail environment, with some individuals holding or examining items near shelves and counters. There is no clear visual evidence of concealing unpaid merchandise into bags, pockets, or clothing across the frames. The L1 event is a soft qty_spike hint without matching visual concealment evidence, so the behavior appears to be normal shopping or browsing.","latency_ms":1452.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the sleeveless patterned top moves an item from the shelf into their brown bag across sequential frames, hiding the product in the bag rather than placing it visibly for checkout or return, matching the definition of concealing unpaid merchandise.","latency_ms":3074.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer in the blue shirt (C#11) is seen reaching toward a shelf, then quickly moving with a sudden motion while holding an item close to their body. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, and the person’s posture—bending slightly, keeping arms close, and moving away from the display without placing the item in a visible cart or basket—indicates concealment intent. No clear checkout or return action is observed, and the behavior deviates from normal browsing. The presence of other customers nearby does not negate the suspicious multi-frame pattern of hiding merchandise.","latency_ms":3507.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"steal","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person in the orange shirt is seen concealing an item under their arm while standing near the checkout counter, indicating clear intent to shoplift. This behavior aligns with the 'steal' label as it shows concealment of unpaid merchandise.","latency_ms":2066.3}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting030_x264__C_11__conceal__2","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view) and high model score (0.85), strongly indicates the person is hiding an item in their pocket or clothing. The multi-frame behavior shows the individual leaning forward and making a motion consistent with concealing an object at the hip, which aligns with the 'conceal_unpaid' label per rules—specifically, concealment into clothing/pocket, not just holding. No payment or visible return to shelf occurs.","latency_ms":2794.5,"agreement_hint":"keep_ok","center_ts":124.76666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__conceal__2&file=kf_00_123.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__conceal__2&file=kf_01_124.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__conceal__2&file=kf_02_125.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__conceal__2&file=kf_03_125.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The L1 event suggests a concealment into a pocket at the hip, but the provided keyframes are too low-resolution and distant to visually confirm any item being hidden. No clear multi-frame concealment behavior is discernible from the images alone.","latency_ms":1375.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#11) is observed in multi-frame behavior consistent with concealing an unpaid item in their hip pocket, matching the L1 conceal event subtype of pocket concealment, with visual trajectory and item evidence supporting the hiding action across frames.","latency_ms":2473.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view) and high model score (0.85), strongly indicates the person is hiding an item in their pocket or clothing. The multi-frame behavior shows the individual leaning forward and making a motion consistent with concealing an object at the hip, which aligns with the 'conceal_unpaid' label per rules—specifically, concealment into clothing/pocket, not just holding. No payment or visible return to shelf occurs.","latency_ms":2794.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.95,"agreement_hint":"keep_ok","rationale":"The individual is seen bending over and placing an item into their waistband or pocket area, consistent with concealing unpaid merchandise. This behavior aligns with the 'conceal' L1 event and demonstrates clear intent to hide the item from view.","latency_ms":2831.2}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting030_x264__C_11__qty_spike__4","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer in the blue shirt (C#11) is seen reaching into a display area and then quickly moving toward their body while holding an item. In the final frame, they appear to be tucking or hiding the item under their clothing or into a bag, consistent with concealment behavior. The L1 event 'qty_spike' and 'taken_proxy>=2' support multiple items being taken, and the multi-frame sequence shows intent to hide rather than return or place in cart. No visible payment occurs, and the action is inconsistent with normal browsing.","latency_ms":2923.5,"agreement_hint":"keep_ok","center_ts":203.16666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__qty_spike__4&file=kf_00_202.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__qty_spike__4&file=kf_01_202.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__qty_spike__4&file=kf_02_203.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__qty_spike__4&file=kf_03_204.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show multiple shoppers in a store, with individuals holding bags and items, but no clear visual evidence of concealing unpaid merchandise into pockets, bags, or clothing. The L1 qty_spike event is a soft hint and not sufficient without matching visual concealment.","latency_ms":1301.1},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the sleeveless patterned top moves their arm from reaching toward merchandise on the shelf to tucking an item into their brown bag across multiple consecutive frames, demonstrating clear concealment of an unpaid product.","latency_ms":2149.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer in the blue shirt (C#11) is seen reaching into a display area and then quickly moving toward their body while holding an item. In the final frame, they appear to be tucking or hiding the item under their clothing or into a bag, consistent with concealment behavior. The L1 event 'qty_spike' and 'taken_proxy>=2' support multiple items being taken, and the multi-frame sequence shows intent to hide rather than return or place in cart. No visible payment occurs, and the action is inconsistent with normal browsing.","latency_ms":2923.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"steal","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the blue shirt is seen placing an item into their waistband or pocket area, which is consistent with concealment behavior. This action, combined with the proximity to the checkout counter and the presence of other shoppers, strongly suggests an intent to shoplift.","latency_ms":2136.6}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting030_x264__C_1__0","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer (in the plaid shirt, center-right) is seen bending down and placing an item into a bag or pocket area near their waist/hip while others are distracted. The L1 event 'qty_spike' and 'handheld_peak>=2' suggest multiple items were handled quickly, and the body posture (bending, hiding motion) combined with the context of a retail store strongly indicates concealment of unpaid merchandise. This matches the definition of 'conceal_unpaid' — hiding on the body — not just browsing.","latency_ms":2728.7,"agreement_hint":"keep_ok","center_ts":158.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__0&file=kf_00_157.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__0&file=kf_01_158.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__0&file=kf_02_158.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__0&file=kf_03_159.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show individuals standing and interacting near a display counter, with no visible concealment of merchandise into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding intent across frames.","latency_ms":1161.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the green plaid shirt adjusts their bag in a sequence of frames, with the bag appearing to shift position toward their torso in a way consistent with hiding an unpaid item, paired with the L1 qty_spike event indicating a potential product take.","latency_ms":3069.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (in the plaid shirt, center-right) is seen bending down and placing an item into a bag or pocket area near their waist/hip while others are distracted. The L1 event 'qty_spike' and 'handheld_peak>=2' suggest multiple items were handled quickly, and the body posture (bending, hiding motion) combined with the context of a retail store strongly indicates concealment of unpaid merchandise. This matches the definition of 'conceal_unpaid' — hiding on the body — not just browsing.","latency_ms":2728.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen holding an item in their hand and appears to be examining or considering it, consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or clothing, and the actions do not indicate shoplifting intent.","latency_ms":2089.1}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting030_x264__C_1__conceal__1","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view) and high model score (0.85), strongly indicates the person is concealing an item in their pocket or clothing. The multi-frame behavior shows them standing near the counter while making a motion consistent with hiding an item, and no payment is observed. This aligns with 'conceal_unpaid' per rules: concealment into body/pocket is confirmed by both visual context and L1 metadata.","latency_ms":3152.2,"agreement_hint":"keep_ok","center_ts":92.76666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__conceal__1&file=kf_00_91.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__conceal__1&file=kf_01_92.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__conceal__1&file=kf_02_93.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__conceal__1&file=kf_03_93.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show a person in the foreground with a bag and hand near the hip area, consistent with hiding merchandise. While the visual evidence is not perfectly clear, the combination of the L1 conceal event and the observed posture supports concealment of unpaid merchandise.","latency_ms":1447.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#1) is observed moving an item toward their hip pocket across sequential frames, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior indicating hiding an unpaid product rather than normal shopping activity.","latency_ms":3199.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view) and high model score (0.85), strongly indicates the person is concealing an item in their pocket or clothing. The multi-frame behavior shows them standing near the counter while making a motion consistent with hiding an item, and no payment is observed. This aligns with 'conceal_unpaid' per rules: concealment into body/pocket is confirmed by both visual context and L1 metadata.","latency_ms":3152.2},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item into their pocket, which is a clear act of concealment. This behavior aligns with the 'conceal' event type and indicates an intent to steal unpaid merchandise.","latency_ms":1637.5}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting030_x264__C_1__qty_spike__3","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer (in blue shirt) is seen bending down and reaching toward the floor near their feet while holding a large brown bag. In the context of the L1 event 'qty_spike' and 'handheld_peak>=2', combined with the posture suggesting an attempt to hide or retrieve an item, this behavior strongly indicates concealment of unpaid merchandise. The person’s hand movement near the bag and lower body suggests placing or retrieving an item into the bag without paying. No clear checkout or return action is observed.","latency_ms":2898.2,"agreement_hint":"keep_ok","center_ts":158.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__qty_spike__3&file=kf_00_157.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__qty_spike__3&file=kf_01_158.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__qty_spike__3&file=kf_02_158.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__qty_spike__3&file=kf_03_159.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show multiple people in a retail environment, with some individuals holding or examining items near a display counter. There is no clear visual evidence of a person concealing unpaid merchandise into a bag, pocket, or clothing across the frames. The L1 event is a soft qty_spike hint, but the visuals do not confirm concealment or shoplifting intent.","latency_ms":2239.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the green plaid shirt adjusts their bag in a sequence of frames, with the bag positioned to conceal items, consistent with hiding unpaid merchandise. The L1 qty_spike event provides additional soft context supporting potential concealment, and the multi-frame behavior shows intent to hide items rather than normal browsing.","latency_ms":2861.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (in blue shirt) is seen bending down and reaching toward the floor near their feet while holding a large brown bag. In the context of the L1 event 'qty_spike' and 'handheld_peak>=2', combined with the posture suggesting an attempt to hide or retrieve an item, this behavior strongly indicates concealment of unpaid merchandise. The person’s hand movement near the bag and lower body suggests placing or retrieving an item into the bag without paying. No clear checkout or return action is observed.","latency_ms":2898.2},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen holding and examining a product in their hand, consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or under clothing, and the actions appear to be part of a typical browsing process.","latency_ms":3339.3}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting030_x264__C_20__conceal__6","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event explicitly labels 'conceal' with subtype 'pocket' and zone 'hip', and the trajectory evidence shows high dwell ratio (0.833) and co-disappear (1.0), indicating the item was hidden on the person's body. The multi-frame behavior shows the customer in close proximity to a display, then moving away with no visible payment or cart placement, consistent with concealment intent. No checkout or return is observed.","latency_ms":2164.7,"agreement_hint":"keep_ok","center_ts":313.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_20__conceal__6&file=kf_00_312.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_20__conceal__6&file=kf_01_313.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_20__conceal__6&file=kf_02_313.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_20__conceal__6&file=kf_03_314.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show a person in a red top and dark pants near a display counter with a hand-to-hip motion consistent with hiding merchandise. While the visual evidence is not perfectly clear, the multi-frame behavior and L1 context support concealment.","latency_ms":1353.1},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the red shirt performs a sequence of actions consistent with concealing an unpaid item: they bend down near the shelf area, then move their hands toward their hip pocket (matching the L1 event's subtype of pocket concealment), with multi-frame behavior showing the action of hiding an item on their person rather than normal browsing or checkout.","latency_ms":2916.7},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly labels 'conceal' with subtype 'pocket' and zone 'hip', and the trajectory evidence shows high dwell ratio (0.833) and co-disappear (1.0), indicating the item was hidden on the person's body. The multi-frame behavior shows the customer in close proximity to a display, then moving away with no visible payment or cart placement, consistent with concealment intent. No checkout or return is observed.","latency_ms":2164.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their pocket, which is a clear act of concealment. This behavior aligns with the 'conceal_unpaid' label as it indicates an intent to hide merchandise without paying.","latency_ms":1882.9}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting030_x264__C_28__conceal__7","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' at the hip zone, and the trajectory analysis shows a high co-disappear score (1.0) and dwell ratio (1.0), indicating the item was hidden on the person's body rather than placed in a visible bag or cart. Although no direct visual of the item being pocketed is seen in these frames, the multi-frame behavior (approach, pause at hip, then move away without placing in cart) combined with the strong L1 evidence supports concealment intent. The risk score is low but the model and trajectory scores are high, and the weak label is 'positive' for theft.","latency_ms":2981.7,"agreement_hint":"keep_ok","center_ts":363.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_28__conceal__7&file=kf_00_362.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_28__conceal__7&file=kf_01_362.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_28__conceal__7&file=kf_02_363.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_28__conceal__7&file=kf_03_364.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.3,"agreement_hint":"uncertain","rationale":"The keyframes show multiple people in a store, but no clear visual evidence of a person concealing unpaid merchandise into a bag, pocket, or clothing. The L1 conceal event is a soft hint and cannot be verified from the provided frames.","latency_ms":852.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the light blue shirt performs a sequence of actions across frames: moving toward the right-side display, bending down toward their hip area (matching the L1 event's subtype of pocket concealment), consistent with hiding an unpaid item on their person. The multi-frame behavior aligns with concealment intent rather than normal shopping activity.","latency_ms":3302.3},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' at the hip zone, and the trajectory analysis shows a high co-disappear score (1.0) and dwell ratio (1.0), indicating the item was hidden on the person's body rather than placed in a visible bag or cart. Although no direct visual of the item being pocketed is seen in these frames, the multi-frame behavior (approach, pause at hip, then move away without placing in cart) combined with the strong L1 evidence supports concealment intent. The risk score is low but the model and trajectory scores are high, and the weak label is 'positive' for theft.","latency_ms":2981.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the red top is seen placing an item into their pocket, consistent with concealment behavior. This action aligns with the L1 event 'conceal' and indicates intent to hide unpaid merchandise.","latency_ms":2449.6}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting030_x264__C_2__conceal__0","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The person (P#2, red top) is crouched near a display counter and appears to be placing an item under their clothing or into a hidden location, consistent with the L1 event 'conceal' and meta subtype 'under_clothes'. The posture, prolonged crouch, and lack of visible payment or return to shelf indicate intent to conceal unpaid merchandise. This matches the definition of 'conceal_unpaid' as hiding items on the body across multiple frames.","latency_ms":2525.1,"agreement_hint":"keep_ok","center_ts":16.766666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_2__conceal__0&file=kf_00_15.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_2__conceal__0&file=kf_01_16.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_2__conceal__0&file=kf_02_17.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_2__conceal__0&file=kf_03_17.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the red shirt is seen bending down and interacting with merchandise in a manner consistent with concealing items under clothing or in a bag, as indicated by the L1 event subtype 'under_clothes' and the visual evidence of the person's posture and actions across multiple frames.","latency_ms":1312.8},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the red shirt is holding a product against their torso under their clothing, consistent with multi-frame behavior of concealing an unpaid item, matching the L1 conceal event subtype of under_clothes.","latency_ms":2999.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person (P#2, red top) is crouched near a display counter and appears to be placing an item under their clothing or into a hidden location, consistent with the L1 event 'conceal' and meta subtype 'under_clothes'. The posture, prolonged crouch, and lack of visible payment or return to shelf indicate intent to conceal unpaid merchandise. This matches the definition of 'conceal_unpaid' as hiding items on the body across multiple frames.","latency_ms":2525.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is crouched near the checkout counter, with their hands positioned in a way that suggests they are concealing an item under their clothing or in a hidden location. This behavior aligns with the 'under_clothes' concealment pattern indicated by the L1 event and visual evidence.","latency_ms":2537.9}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting039_x264__C_2__conceal__0","clip_id":"ucf_theft__Shoplifting039_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappearance (item vanishes from view) and high score (0.759), strongly indicates the person concealed an item in their pocket or clothing. The person's posture and movement toward the exit without proceeding to checkout support this. No visual of the item being placed in a bag or cart, but the 'pocket' subtype and high confidence in concealment align with 'conceal_unpaid'.","latency_ms":2583.0,"agreement_hint":"keep_ok","center_ts":10.766666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting039_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__conceal__0&file=kf_00_9.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__conceal__0&file=kf_01_10.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__conceal__0&file=kf_02_11.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__conceal__0&file=kf_03_11.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The keyframes show a person walking through the store, but no clear concealment of merchandise into a bag, pocket, or clothing is visible. The L1 event suggests a concealment at the hip, but the visual evidence does not confirm this action across the frames.","latency_ms":1074.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual is observed moving from the center of the store to the right-side shelf area, with their hand positioned at their hip (matching the L1 conceal event subtype of pocket) across sequential frames, and exits the frame after this action, consistent with hiding an unpaid item in their clothing.","latency_ms":2033.7},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappearance (item vanishes from view) and high score (0.759), strongly indicates the person concealed an item in their pocket or clothing. The person's posture and movement toward the exit without proceeding to checkout support this. No visual of the item being placed in a bag or cart, but the 'pocket' subtype and high confidence in concealment align with 'conceal_unpaid'.","latency_ms":2583.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen concealing an item into their pocket (as indicated by the L1 event 'conceal' with subtype 'pocket'), which aligns with behavior consistent with shoplifting intent. The person's actions across the frames suggest an attempt to hide merchandise without paying.","latency_ms":1958.6}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_10__conceal__3","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high trajectory score (0.6678) + co_disappear=1.0 across 6 frames strongly indicates concealment under clothes. The person's posture (bending, hand near waist/hip area) and the context of being in a clothing store support intent to hide merchandise without payment. No visible checkout or return actions occur.","latency_ms":2858.8,"agreement_hint":"keep_ok","center_ts":41.56666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__conceal__3&file=kf_00_40.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__conceal__3&file=kf_01_41.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__conceal__3&file=kf_02_41.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__conceal__3&file=kf_03_42.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action under clothes, and the multi-frame sequence shows a person in the foreground with a white top and dark hair whose body orientation and hand movements are consistent with hiding an item near the waistband or under clothing while browsing. The concealment is not fully visible due to occlusion, but the behavior aligns with the L1 conceal hint and the trajectory evidence of item disappearance.","latency_ms":1794.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the white long-sleeve shirt repeatedly manipulates clothing near their torso, with multi-frame behavior showing actions consistent with hiding an item under their clothing, matching the L1 conceal event subtype of under_clothes.","latency_ms":3242.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high trajectory score (0.6678) + co_disappear=1.0 across 6 frames strongly indicates concealment under clothes. The person's posture (bending, hand near waist/hip area) and the context of being in a clothing store support intent to hide merchandise without payment. No visible checkout or return actions occur.","latency_ms":2858.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen picking up and examining clothing items, which is consistent with normal shopping behavior. There is no visible concealment of merchandise into a bag, pocket, or under clothes across the frames.","latency_ms":2072.5}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_29__conceal__5","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 1.0) indicates the person likely concealed an item under clothing. The person’s posture—bending slightly, hand near waist/hip area, and holding a bag while standing close to others—supports concealment intent. No visual of the item being placed in a bag or pocket is seen, but the multi-frame behavior (dwell, co-disappear, and lack of visible re-emergence) strongly suggests unpaid concealment. This aligns with the rule that only steal/conceal_unpaid when visuals show concealment into bag/pocket/clothes or clear multi-frame hiding intent.","latency_ms":3463.5,"agreement_hint":"keep_ok","center_ts":146.76666666666668,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__conceal__5&file=kf_00_145.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__conceal__5&file=kf_01_146.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__conceal__5&file=kf_02_147.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__conceal__5&file=kf_03_147.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action under clothes, and the multi-frame sequence shows a person in the foreground handling merchandise near their waistline, consistent with hiding unpaid items.","latency_ms":1489.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual with dark hair and white top is observed moving a clothing item toward their underclothes (midsection) across sequential frames, consistent with hiding an unpaid product under clothing, matching the L1 conceal event subtype of under_clothes.","latency_ms":2778.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 1.0) indicates the person likely concealed an item under clothing. The person’s posture—bending slightly, hand near waist/hip area, and holding a bag while standing close to others—supports concealment intent. No visual of the item being placed in a bag or pocket is seen, but the multi-frame behavior (dwell, co-disappear, and lack of visible re-emergence) strongly suggests unpaid concealment. This aligns with the rule that only steal/conceal_unpaid when visuals show concealment into bag/pocket/clothes or clear multi-frame hiding intent.","latency_ms":3463.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item under their clothing, which is consistent with concealment behavior. This action aligns with the L1 event 'conceal' and indicates an intent to hide unpaid merchandise.","latency_ms":1618.3}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_3__conceal__13","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' at hip level, and the trajectory analysis shows co-disappearance (item vanishes from view after interaction), dwell ratio of 1.0, and high model score (0.85). The person's behavior across frames shows them interacting with merchandise near the hip area, consistent with hiding an item in a pocket or under clothing, without placing it in a visible cart or basket. This aligns with 'conceal_unpaid' as defined: hiding product on the body with clear intent to avoid payment.","latency_ms":2901.1,"agreement_hint":"keep_ok","center_ts":485.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_3__conceal__13&file=kf_00_484.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_3__conceal__13&file=kf_01_484.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_3__conceal__13&file=kf_02_485.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_3__conceal__13&file=kf_03_486.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the multi-frame sequence shows the person handling merchandise in a manner consistent with hiding it on their body rather than browsing or checking out.","latency_ms":1564.4},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the white top is observed moving a purple garment from a display rack and concealing it under their outer clothing at their hip, consistent with the L1 conceal event subtype of pocket/hip concealment, with multi-frame behavior showing the garment being hidden on their body rather than normal shopping activity.","latency_ms":3162.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' at hip level, and the trajectory analysis shows co-disappearance (item vanishes from view after interaction), dwell ratio of 1.0, and high model score (0.85). The person's behavior across frames shows them interacting with merchandise near the hip area, consistent with hiding an item in a pocket or under clothing, without placing it in a visible cart or basket. This aligns with 'conceal_unpaid' as defined: hiding product on the body with clear intent to avoid payment.","latency_ms":2901.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen picking up a purple garment and placing it into their bag, which aligns with the 'conceal' L1 event indicating intent to hide unpaid merchandise. The behavior across frames shows clear concealment into the bag.","latency_ms":2400.8}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_40__conceal__10","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after interaction) and high model score (0.85), strongly indicates the person concealed an item in their pocket or clothing. The multi-frame behavior shows them interacting with merchandise near the hip area, consistent with hiding an unpaid item. No visual of payment or return to shelf is observed.","latency_ms":2528.7,"agreement_hint":"keep_ok","center_ts":396.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_40__conceal__10&file=kf_00_395.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_40__conceal__10&file=kf_01_396.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_40__conceal__10&file=kf_02_396.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_40__conceal__10&file=kf_03_397.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the multi-frame sequence shows a person in the foreground interacting with merchandise in a manner consistent with hiding an item on their body.","latency_ms":1416.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#40) is observed over multiple frames moving an item toward their hip pocket (consistent with the L1 conceal event subtype of pocket), with multi-frame behavior showing intent to hide the item on their body rather than browse or checkout.","latency_ms":3646.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after interaction) and high model score (0.85), strongly indicates the person concealed an item in their pocket or clothing. The multi-frame behavior shows them interacting with merchandise near the hip area, consistent with hiding an unpaid item. No visual of payment or return to shelf is observed.","latency_ms":2528.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item into a bag or pocket area near their hip, consistent with concealment behavior. This action aligns with the L1 event 'conceal' and is supported by visual evidence across multiple frames.","latency_ms":2239.8}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_48__5","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.8,"rationale":"The customer (C#48) is seen browsing and then, in the final frames, appears to be placing an item into a bag or pocket while turning away from the rack—consistent with concealment behavior. The L1 event 'qty_spike' and 'taken_proxy>=2' support multiple items being handled, and the multi-frame sequence shows intent to hide merchandise without paying. No visible checkout or return action occurs.","latency_ms":2025.5,"agreement_hint":"keep_ok","center_ts":444.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__5&file=kf_00_443.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__5&file=kf_01_444.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__5&file=kf_02_444.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__5&file=kf_03_445.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks without any visible concealment into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1243.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The woman in the white top is seen holding a dark garment and moving it toward her body/back area across sequential frames, consistent with hiding an unpaid product, supported by the L1 qty_spike event indicating a potential take of multiple items.","latency_ms":2945.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.8,"agreement_hint":"keep_ok","rationale":"The customer (C#48) is seen browsing and then, in the final frames, appears to be placing an item into a bag or pocket while turning away from the rack—consistent with concealment behavior. The L1 event 'qty_spike' and 'taken_proxy>=2' support multiple items being handled, and the multi-frame sequence shows intent to hide merchandise without paying. No visible checkout or return action occurs.","latency_ms":2025.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen holding a garment close to their body and appears to be concealing it under their top or into their bag, consistent with shoplifting intent across multiple frames.","latency_ms":2868.3}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_48__conceal__11","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with high trajectory score (0.7429) and co-disappear signal (1.0), indicates the person likely concealed an item in their hip/pocket area. The person's body language—hand moving toward the hip area while walking away from the rack—and the context of being in a clothing store support this. No visual evidence shows the item being placed in a bag or returned to a shelf, and the risk score is low but the meta data strongly suggests concealment intent. This aligns with 'conceal_unpaid' as defined: hiding merchandise on the body without payment.","latency_ms":3013.8,"agreement_hint":"keep_ok","center_ts":439.96666666666664,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__conceal__11&file=kf_00_438.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__conceal__11&file=kf_01_439.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__conceal__11&file=kf_02_440.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__conceal__11&file=kf_03_441.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The keyframes show a woman in a white top and blue jeans moving through the store and then reaching toward her waistband/hip area in a manner consistent with concealing an item, matching the L1 conceal event (subtype: pocket, zone: hip). The multi-frame sequence captures the concealment motion rather than mere browsing.","latency_ms":1557.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#48) is observed over multiple frames moving their hand toward their hip pocket (per L1 event subtype: pocket, zone: hip) while handling clothing, consistent with hiding an unpaid item on their person, matching the conceal_unpaid criteria of hiding merchandise in a pocket/on the body.","latency_ms":4239.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with high trajectory score (0.7429) and co-disappear signal (1.0), indicates the person likely concealed an item in their hip/pocket area. The person's body language—hand moving toward the hip area while walking away from the rack—and the context of being in a clothing store support this. No visual evidence shows the item being placed in a bag or returned to a shelf, and the risk score is low but the meta data strongly suggests concealment intent. This aligns with 'conceal_unpaid' as defined: hiding merchandise on the body without payment.","latency_ms":3013.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their front pocket, which is a clear act of concealment. This behavior aligns with the 'conceal_unpaid' label as it indicates an intent to hide merchandise without paying.","latency_ms":2743.8}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_48__qty_spike__12","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer (C#48) is seen browsing and then, in the final frames, appears to be placing an item into a bag or pocket while turning away from the rack—consistent with concealment behavior. The L1 event 'qty_spike' with taken_proxy=2 and take_burst>=2/25s supports multiple items being handled quickly, and the visual sequence shows her moving toward the exit with a bag that may contain unpaid merchandise. No clear checkout or return action is observed.","latency_ms":2945.0,"agreement_hint":"keep_ok","center_ts":444.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__qty_spike__12&file=kf_00_443.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__qty_spike__12&file=kf_01_444.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__qty_spike__12&file=kf_02_444.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__qty_spike__12&file=kf_03_445.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The keyframes show customers browsing and handling clothing on racks without any visible concealment into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding merchandise.","latency_ms":1783.8},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The woman in the white top is seen holding a dark bag and moving toward her torso/side, with multi-frame behavior showing she is concealing an item (consistent with hiding unpaid merchandise) rather than normal shopping actions like examining or placing items in a cart. The L1 qty_spike event aligns with this observed concealment behavior.","latency_ms":2825.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#48) is seen browsing and then, in the final frames, appears to be placing an item into a bag or pocket while turning away from the rack—consistent with concealment behavior. The L1 event 'qty_spike' with taken_proxy=2 and take_burst>=2/25s supports multiple items being handled quickly, and the visual sequence shows her moving toward the exit with a bag that may contain unpaid merchandise. No clear checkout or return action is observed.","latency_ms":2945.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person in the blue top is seen placing an item into her bag or under her clothing while browsing, which indicates an intent to conceal unpaid merchandise. This behavior aligns with shoplifting intent across multiple frames.","latency_ms":1846.4}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_4__conceal__0","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view) and high score (0.6748), indicates the person is hiding an item on their person. The multi-frame behavior shows the individual moving with a bag or item near their hip, consistent with concealment into pocket or under clothing. No payment or return to shelf is observed, supporting unpaid concealment intent.","latency_ms":2614.8,"agreement_hint":"keep_ok","center_ts":5.566666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__conceal__0&file=kf_00_4.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__conceal__0&file=kf_01_5.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__conceal__0&file=kf_02_5.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__conceal__0&file=kf_03_6.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The keyframes show a person in the center of the frame with a dark shoulder bag. Across the sequence, they appear to be interacting with merchandise while their body and bag are positioned in a way that suggests concealing an item, consistent with the L1 conceal event (subtype: pocket, zone: hip). The multi-frame behavior indicates hiding intent rather than normal browsing.","latency_ms":2055.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual is observed moving an item toward their hip pocket across sequential frames, consistent with hiding an unpaid item on their person, matching the L1 conceal event subtype of pocket concealment.","latency_ms":2411.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view) and high score (0.6748), indicates the person is hiding an item on their person. The multi-frame behavior shows the individual moving with a bag or item near their hip, consistent with concealment into pocket or under clothing. No payment or return to shelf is observed, supporting unpaid concealment intent.","latency_ms":2614.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their waistband/pocket area, consistent with concealing unpaid merchandise. This behavior aligns with the 'conceal' L1 event and is supported by visual evidence across multiple frames.","latency_ms":1860.6}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_5__conceal__6","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' at hip zone, and the trajectory analysis shows co-disappear (item vanishes from view after interaction) with high score (0.65) and 100% dwell ratio. The person's posture and hand motion toward the hip area across multiple frames suggest hiding an item in a pocket or waistband, consistent with concealment intent. No payment or return to shelf is observed.","latency_ms":2657.9,"agreement_hint":"keep_ok","center_ts":148.76666666666668,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__conceal__6&file=kf_00_147.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__conceal__6&file=kf_01_148.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__conceal__6&file=kf_02_149.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__conceal__6&file=kf_03_149.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the multi-frame sequence shows a person handling merchandise in a manner consistent with hiding it on their body rather than openly carrying it.","latency_ms":1825.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#5) is holding multiple garments and moving toward their hip pocket (per L1 event subtype 'pocket'), with multi-frame behavior showing the action of positioning items to conceal them on their person, consistent with hiding unpaid merchandise.","latency_ms":3190.3},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' at hip zone, and the trajectory analysis shows co-disappear (item vanishes from view after interaction) with high score (0.65) and 100% dwell ratio. The person's posture and hand motion toward the hip area across multiple frames suggest hiding an item in a pocket or waistband, consistent with concealment intent. No payment or return to shelf is observed.","latency_ms":2657.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is seen picking up and examining clothing items, placing them into a shopping basket, and interacting with the merchandise in a manner consistent with normal shopping behavior. There is no visible concealment of unpaid items into bags, pockets, or under clothes.","latency_ms":2064.0}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_71__conceal__14","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 1.0) indicates the person likely concealed an item under their clothes. The person is standing near a clothing rack, and while no explicit visual of the concealment is seen in these frames, the consistent context and high-confidence L1 signal support concealment intent. No payment or visible return to shelf occurs, and the behavior aligns with shoplifting via under-clothes concealment.","latency_ms":2903.3,"agreement_hint":"keep_ok","center_ts":662.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__conceal__14&file=kf_00_661.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__conceal__14&file=kf_01_662.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__conceal__14&file=kf_02_662.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__conceal__14&file=kf_03_663.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The keyframes show a person browsing clothing racks with a shoulder bag, but no clear concealment action (e.g., placing merchandise into the bag or under clothes) is visible across the frames. The L1 conceal hint is not corroborated by visual evidence.","latency_ms":1465.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer is repeatedly reaching into their open bag while browsing clothing racks, with L1 event data indicating a concealment event under clothes, consistent with multi-frame behavior of hiding an unpaid item.","latency_ms":2743.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 1.0) indicates the person likely concealed an item under their clothes. The person is standing near a clothing rack, and while no explicit visual of the concealment is seen in these frames, the consistent context and high-confidence L1 signal support concealment intent. No payment or visible return to shelf occurs, and the behavior aligns with shoplifting via under-clothes concealment.","latency_ms":2903.3},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item under their clothing, which is a clear concealment behavior indicating intent to shoplift. This is supported by the L1 event 'conceal' and the visual evidence of the item being hidden.","latency_ms":1812.0}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_87__7","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer (C#87) is seen repeatedly interacting with clothing items in a manner suggesting concealment: she bends down near the floor, reaches into a lower rack area where items are less visible, and appears to manipulate items while partially obscured by her body and bag. Her posture and actions—especially the repeated bending and reaching into low areas without placing items in a visible cart or basket—align with typical shoplifting behavior of hiding merchandise on the person. The L1 event 'qty_spike' and 'taken_proxy>=2' support this, but the visual evidence of concealment (e.g., hiding items under clothes or in bag) is consistent across frames. No clear checkout or return to shelf is observed.","latency_ms":3232.8,"agreement_hint":"keep_ok","center_ts":810.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__7&file=kf_00_809.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__7&file=kf_01_810.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__7&file=kf_02_810.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__7&file=kf_03_811.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The person is seen browsing and handling clothing on racks without any visible concealment into a bag, pocket, or clothing. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1384.0},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across the sequence of frames, the customer is observed interacting with clothing items near the rack, moving toward her patterned bag, and positioning items in a manner consistent with hiding unpaid merchandise in her bag, which aligns with multi-frame behavior indicating concealment of products.","latency_ms":3572.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#87) is seen repeatedly interacting with clothing items in a manner suggesting concealment: she bends down near the floor, reaches into a lower rack area where items are less visible, and appears to manipulate items while partially obscured by her body and bag. Her posture and actions—especially the repeated bending and reaching into low areas without placing items in a visible cart or basket—align with typical shoplifting behavior of hiding merchandise on the person. The L1 event 'qty_spike' and 'taken_proxy>=2' support this, but the visual evidence of concealment (e.g., hiding items under clothes or in bag) is consistent across frames. No clear checkout or return to shelf is observed.","latency_ms":3232.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen picking up a red garment and placing it into her bag, which indicates an intent to conceal unpaid merchandise. This behavior aligns with the 'conceal_unpaid' label as she actively hides the item from view.","latency_ms":1893.5}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_87__conceal__16","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (1.0) and high model score (0.85), indicates the person likely concealed an item in their pocket or waist area. The person's posture and movement near the clothing racks, along with the absence of the item in visible hands or cart, support concealment intent rather than browsing or checkout. No payment is observed, and the risk score is low but not zero, suggesting the act may be subtle but still identifiable as concealment.","latency_ms":2807.6,"agreement_hint":"keep_ok","center_ts":807.5666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__conceal__16&file=kf_00_806.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__conceal__16&file=kf_01_807.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__conceal__16&file=kf_02_807.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__conceal__16&file=kf_03_808.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The person is seen moving through the store and placing an item into a bag/pocket area at the hip, consistent with concealment behavior across multiple frames.","latency_ms":1467.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Multi-frame visual evidence shows the customer moving an item toward her hip pocket (consistent with the L1 conceal event subtype of pocket), with trajectory and model score supporting hiding an unpaid product on her person rather than normal shopping actions.","latency_ms":3366.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (1.0) and high model score (0.85), indicates the person likely concealed an item in their pocket or waist area. The person's posture and movement near the clothing racks, along with the absence of the item in visible hands or cart, support concealment intent rather than browsing or checkout. No payment is observed, and the risk score is low but not zero, suggesting the act may be subtle but still identifiable as concealment.","latency_ms":2807.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item into her bag, which is consistent with concealment behavior. The L1 event 'conceal' further supports this inference, as it indicates a potential attempt to hide unpaid merchandise.","latency_ms":2311.6}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_87__qty_spike__17","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer (C#87) is seen repeatedly interacting with merchandise in a way that suggests concealment: she bends down near the floor, reaches into a low clothing rack, and appears to retrieve items without placing them in a visible basket or cart. Her body posture and hand movements—particularly reaching under or behind racks while keeping her back partially turned—indicate an intent to hide items on her person (e.g., in her bag or clothing). The L1 event 'qty_spike' with 'taken_proxy>=2' and 'take_burst>=2/25s' supports rapid, repeated handling of items, consistent with shoplifting behavior rather than normal browsing. No payment or checkout is observed, and no items are visibly placed in a cart. This aligns with 'conceal_unpaid' as defined: hiding items on the body via multi-frame behavior.","latency_ms":5520.3,"agreement_hint":"keep_ok","center_ts":810.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__qty_spike__17&file=kf_00_809.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__qty_spike__17&file=kf_01_810.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__qty_spike__17&file=kf_02_810.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__qty_spike__17&file=kf_03_811.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The person is seen browsing and handling clothing on racks without any visible concealment into a bag, pocket, or clothing. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1491.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across the sequence of frames, the customer is observed taking a red garment from the clothing rack and moving it toward her large patterned bag, consistent with hiding an unpaid product in her bag. The L1 qty_spike event aligns with the multi-frame action of taking an item to conceal it, matching the visual evidence of hiding merchandise.","latency_ms":3449.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#87) is seen repeatedly interacting with merchandise in a way that suggests concealment: she bends down near the floor, reaches into a low clothing rack, and appears to retrieve items without placing them in a visible basket or cart. Her body posture and hand movements—particularly reaching under or behind racks while keeping her back partially turned—indicate an intent to hide items on her person (e.g., in her bag or clothing). The L1 event 'qty_spike' with 'taken_proxy>=2' and 'take_burst>=2/25s' supports rapid, repeated handling of items, consistent with shoplifting behavior rather than normal browsing. No payment or checkout is observed, and no items are visibly placed in a cart. This aligns with 'conceal_unpaid' as defined: hiding items on the body via multi-frame behavior.","latency_ms":5520.3},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen picking up a red garment and placing it into their bag, which indicates an intent to conceal unpaid merchandise. This behavior aligns with shoplifting intent across multiple frames.","latency_ms":1757.9}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting040_x264__C_8__conceal__2","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view) and high model score (0.85), strongly indicates the person is concealing an item in their pocket or clothing. The multi-frame behavior shows the person holding items while moving toward the hip area, consistent with hiding merchandise without payment. This aligns with the definition of 'conceal_unpaid' — hiding a product on the body — not just browsing.","latency_ms":3059.0,"agreement_hint":"keep_ok","center_ts":25.966666666666665,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__conceal__2&file=kf_00_24.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__conceal__2&file=kf_01_25.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__conceal__2&file=kf_02_26.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__conceal__2&file=kf_03_27.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a conceal action at the hip/pocket with a high model score, and the keyframes show the person in the act of handling merchandise near their body in a manner consistent with concealment. While the visual evidence is not perfectly clear, the combination of the L1 event and the observed behavior supports a concealment determination.","latency_ms":1217.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#8) is observed over multiple frames moving an item toward their hip pocket, consistent with the L1 conceal event subtype of pocket concealment, showing multi-frame behavior of hiding an unpaid item on their person.","latency_ms":3069.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view) and high model score (0.85), strongly indicates the person is concealing an item in their pocket or clothing. The multi-frame behavior shows the person holding items while moving toward the hip area, consistent with hiding merchandise without payment. This aligns with the definition of 'conceal_unpaid' — hiding a product on the body — not just browsing.","latency_ms":3059.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen making a deliberate motion to conceal an item into their pocket, consistent with shoplifting behavior. The L1 event 'conceal' further supports this inference.","latency_ms":2068.8}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting041_x264__C_10__conceal__2","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high trajectory score (0.59) + dwell ratio (0.83) indicates sustained, suspicious behavior near the body. The person (C#10, P#10) is standing at the counter while holding an item up near their head/shoulder area for multiple frames — a posture consistent with hiding an item under clothing or in a bag not visible to camera. No payment occurs, and no clear return to shelf or cart is observed. This matches the definition of 'conceal_unpaid' where concealment into clothing is inferred from multi-frame behavior and context, despite lack of direct visual proof of the item being hidden.","latency_ms":3515.4,"agreement_hint":"keep_ok","center_ts":100.36666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_10__conceal__2&file=kf_00_99.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_10__conceal__2&file=kf_01_100.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_10__conceal__2&file=kf_02_100.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_10__conceal__2&file=kf_03_101.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.4,"agreement_hint":"uncertain","rationale":"The L1 event suggests concealment under clothes, but the keyframes show only people standing and browsing; no clear visual evidence of hiding merchandise on the body is visible across the frames.","latency_ms":1360.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a conceal event under clothes, with model score 0.85 and subtype 'under_clothes'; visual evidence across frames shows the individual in the pink outfit adjusting their upper body/scarf area consistent with hiding an item under clothing, matching the concealment behavior.","latency_ms":2897.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high trajectory score (0.59) + dwell ratio (0.83) indicates sustained, suspicious behavior near the body. The person (C#10, P#10) is standing at the counter while holding an item up near their head/shoulder area for multiple frames — a posture consistent with hiding an item under clothing or in a bag not visible to camera. No payment occurs, and no clear return to shelf or cart is observed. This matches the definition of 'conceal_unpaid' where concealment into clothing is inferred from multi-frame behavior and context, despite lack of direct visual proof of the item being hidden.","latency_ms":3515.4},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and the visual evidence of a person placing an item under their clothing strongly indicate intent to steal by concealing unpaid merchandise.","latency_ms":2046.4}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting041_x264__C_11__0","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The person in maroon (C#11) is seen moving toward the exit while holding an item close to their body, and then appears to duck or turn quickly near the doorway—consistent with concealing merchandise under clothing or into a bag. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, and the multi-frame behavior shows intent to hide rather than return or pay. No visible checkout or return occurs.","latency_ms":2428.7,"agreement_hint":"keep_ok","center_ts":137.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__0&file=kf_00_136.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__0&file=kf_01_137.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__0&file=kf_02_137.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__0&file=kf_03_138.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and moving through the store; no clear concealment into bag, pocket, or clothing is visible across the sequence.","latency_ms":1150.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Multi-frame behavior shows the individual in the pink outfit moving items toward their body, with actions consistent with hiding unpaid merchandise, supported by the L1 qty_spike event indicating an unusual number of items were taken from the shelf area.","latency_ms":3187.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person in maroon (C#11) is seen moving toward the exit while holding an item close to their body, and then appears to duck or turn quickly near the doorway—consistent with concealing merchandise under clothing or into a bag. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, and the multi-frame behavior shows intent to hide rather than return or pay. No visible checkout or return occurs.","latency_ms":2428.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are at a checkout counter, with one person appearing to pay or complete a transaction while the other waits nearby. There is no visible concealment of merchandise into bags, pockets, or clothing, and their behavior aligns with typical checkout activity.","latency_ms":1699.8}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting041_x264__C_11__conceal__3","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (product vanishing from view after interaction) and dwell ratio of 1.0, strongly indicates concealment. The person in the pink dress is at the counter, and the visual flow suggests they placed an item into a pocket or under clothing near the hip area—consistent with multi-frame concealment intent. No payment is observed, and the risk score, though low, aligns with the soft signal. This meets the criteria for 'conceal_unpaid' as defined: hiding on the body without visible checkout.","latency_ms":3176.4,"agreement_hint":"keep_ok","center_ts":124.76666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__conceal__3&file=kf_00_123.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__conceal__3&file=kf_01_124.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__conceal__3&file=kf_02_125.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__conceal__3&file=kf_03_125.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The keyframes show individuals near a counter with bags, but no clear concealment of unpaid merchandise into pockets or clothing is visible. The L1 conceal event is a soft hint, but visual evidence does not confirm shoplifting intent.","latency_ms":1637.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Visual evidence across frames shows a person placing an item into a pocket (consistent with the L1 conceal event subtype of pocket) while moving toward the exit, with multi-frame behavior indicating hiding an unpaid item rather than normal shopping or checkout.","latency_ms":3198.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (product vanishing from view after interaction) and dwell ratio of 1.0, strongly indicates concealment. The person in the pink dress is at the counter, and the visual flow suggests they placed an item into a pocket or under clothing near the hip area—consistent with multi-frame concealment intent. No payment is observed, and the risk score, though low, aligns with the soft signal. This meets the criteria for 'conceal_unpaid' as defined: hiding on the body without visible checkout.","latency_ms":3176.4},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The person is at the checkout counter, interacting with the cashier and placing items into a shopping bag. There is no evidence of concealment or hiding unpaid merchandise. The behavior aligns with normal checkout procedures.","latency_ms":2201.0}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting041_x264__C_11__qty_spike__4","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The person in maroon (C#11) is seen moving toward the exit while holding an item close to their body, and then appears to duck or turn quickly near the doorway—consistent with concealing merchandise under clothing or into a bag. The L1 event 'qty_spike' with multiple takes and handheld peak supports this intent, and no payment or return action is observed. The behavior across frames shows clear concealment intent rather than browsing or checkout.","latency_ms":2752.3,"agreement_hint":"keep_ok","center_ts":137.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__qty_spike__4&file=kf_00_136.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__qty_spike__4&file=kf_01_137.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__qty_spike__4&file=kf_02_137.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__qty_spike__4&file=kf_03_138.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and moving through the store; no clear concealment into bag, pocket, or clothing is visible across the sequence. The L1 qty_spike is a soft hint only and lacks matching visual evidence of hiding merchandise.","latency_ms":1958.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Multi-frame behavior shows the customer in the pink dress moving items toward her body, with actions consistent with hiding unpaid merchandise, supported by the L1 qty_spike event indicating a quantity change that aligns with concealment intent across the sequence of frames.","latency_ms":3784.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person in maroon (C#11) is seen moving toward the exit while holding an item close to their body, and then appears to duck or turn quickly near the doorway—consistent with concealing merchandise under clothing or into a bag. The L1 event 'qty_spike' with multiple takes and handheld peak supports this intent, and no payment or return action is observed. The behavior across frames shows clear concealment intent rather than browsing or checkout.","latency_ms":2752.3},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are at a checkout counter, with one person appearing to be in the process of paying or handing over items. There is no visible concealment of merchandise into bags, pockets, or under clothing. The behavior aligns with normal checkout activity.","latency_ms":1687.7}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting041_x264__C_13__2","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer (C#13) is seen interacting with the counter while another person stands nearby. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, but more importantly, the customer’s posture—bending slightly, hands near the waist/counter area, and the presence of a white bag on the counter—combined with the context of the store layout and lack of visible payment, strongly indicates concealment of unpaid merchandise. No clear checkout or return action is observed; instead, the behavior aligns with shoplifting intent where items are hidden on the body or in bags without payment. The multi-frame sequence shows no item being placed into a cart or basket, nor any visible payment action.","latency_ms":3265.8,"agreement_hint":"keep_ok","center_ts":391.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__2&file=kf_00_390.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__2&file=kf_01_390.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__2&file=kf_02_391.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__2&file=kf_03_392.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show two individuals standing at a counter with visible merchandise; no concealment into bags, pockets, or clothing is evident. The L1 qty_spike is a soft hint only and lacks visual confirmation of hiding behavior.","latency_ms":1712.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is holding and examining a product in a normal shopping manner, with no visible concealment into bags, pockets, or under clothing across the sequence of frames. The L1 qty_spike event is a soft hint without matching visual evidence of concealment.","latency_ms":2733.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#13) is seen interacting with the counter while another person stands nearby. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, but more importantly, the customer’s posture—bending slightly, hands near the waist/counter area, and the presence of a white bag on the counter—combined with the context of the store layout and lack of visible payment, strongly indicates concealment of unpaid merchandise. No clear checkout or return action is observed; instead, the behavior aligns with shoplifting intent where items are hidden on the body or in bags without payment. The multi-frame sequence shows no item being placed into a cart or basket, nor any visible payment action.","latency_ms":3265.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is at the checkout counter, interacting with the cashier and handling products in a manner consistent with paying for items. There is no visible concealment of merchandise into bags, pockets, or under clothing.","latency_ms":1766.5}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting041_x264__C_13__conceal__6","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after approach) and high model score (0.85), strongly suggests the person concealed an item in their pocket or clothing. The multi-frame behavior shows the person standing near the counter, then turning away while holding something near their hip area—consistent with hiding merchandise. No payment is observed, and no clear return to shelf or cart placement occurs. This meets the criteria for 'conceal_unpaid' as defined: hiding product on body without visible payment intent.","latency_ms":3111.4,"agreement_hint":"keep_ok","center_ts":360.76666666666665,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__conceal__6&file=kf_00_359.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__conceal__6&file=kf_01_360.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__conceal__6&file=kf_02_361.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__conceal__6&file=kf_03_361.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a conceal action at the hip/pocket with a model score of 0.85, and the keyframes show a person in a maroon outfit standing near a counter with items, consistent with hiding merchandise on the body.","latency_ms":3158.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The woman in the maroon sari is seen moving an item toward her hip pocket across sequential frames, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior showing intent to hide the unpaid item on her person.","latency_ms":2422.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after approach) and high model score (0.85), strongly suggests the person concealed an item in their pocket or clothing. The multi-frame behavior shows the person standing near the counter, then turning away while holding something near their hip area—consistent with hiding merchandise. No payment is observed, and no clear return to shelf or cart placement occurs. This meets the criteria for 'conceal_unpaid' as defined: hiding product on body without visible payment intent.","latency_ms":3111.4},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is standing at a checkout counter with items placed on the counter, indicating they are in the process of paying for their purchases. There is no evidence of concealment or hiding of merchandise.","latency_ms":1692.1}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting041_x264__C_13__qty_spike__7","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer (C#13) is seen interacting with the counter while another person stands nearby. The L1 event 'qty_spike' and high 'handheld_peak' suggest multiple items were handled quickly. In the sequence, the customer’s hands are near the counter surface, and there is a white bag or item being held close to the body—consistent with concealing merchandise under clothing or into a bag. No payment is visible, and the behavior aligns with shoplifting intent: rapid handling of multiple items without placing them in a cart or basket, followed by potential concealment. The presence of multiple items on the counter and the customer’s posture indicate an attempt to hide goods rather than normal browsing.","latency_ms":3449.3,"agreement_hint":"keep_ok","center_ts":391.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__qty_spike__7&file=kf_00_390.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__qty_spike__7&file=kf_01_390.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__qty_spike__7&file=kf_02_391.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__qty_spike__7&file=kf_03_392.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show two individuals standing at a counter with visible merchandise; no concealment into bags, pockets, or clothing is evident. The L1 qty_spike is a soft proxy and lacks visual confirmation of hiding behavior.","latency_ms":1395.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is holding and examining a product over the counter, consistent with normal shopping behavior of inspecting merchandise, with no visual evidence of concealing unpaid items into a bag, pocket, or under clothes.","latency_ms":2677.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#13) is seen interacting with the counter while another person stands nearby. The L1 event 'qty_spike' and high 'handheld_peak' suggest multiple items were handled quickly. In the sequence, the customer’s hands are near the counter surface, and there is a white bag or item being held close to the body—consistent with concealing merchandise under clothing or into a bag. No payment is visible, and the behavior aligns with shoplifting intent: rapid handling of multiple items without placing them in a cart or basket, followed by potential concealment. The presence of multiple items on the counter and the customer’s posture indicate an attempt to hide goods rather than normal browsing.","latency_ms":3449.3},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is at the checkout counter, interacting with the cashier and handling products in a manner consistent with paying for items. There is no evidence of concealment or hiding unpaid merchandise.","latency_ms":2899.1}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting041_x264__C_3__conceal__1","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (product vanishes from view after interaction) and high model score (0.85), strongly indicates the person concealed an item in their pocket or clothing. The multi-frame behavior shows the individual interacting with shelves, then moving away with no visible payment, supporting concealment intent. No clear checkout or return to shelf is observed.","latency_ms":2451.1,"agreement_hint":"keep_ok","center_ts":24.766666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_3__conceal__1&file=kf_00_23.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_3__conceal__1&file=kf_01_24.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_3__conceal__1&file=kf_02_25.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_3__conceal__1&file=kf_03_25.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show a person in a pink outfit with a white bag near the hip area, consistent with hiding merchandise. While the visual evidence is not perfectly clear, the multi-frame behavior and L1 hint support concealment.","latency_ms":1554.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#3) is observed moving an item toward their hip pocket across sequential frames, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior indicating hiding an unpaid product rather than normal shopping actions.","latency_ms":2842.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (product vanishes from view after interaction) and high model score (0.85), strongly indicates the person concealed an item in their pocket or clothing. The multi-frame behavior shows the individual interacting with shelves, then moving away with no visible payment, supporting concealment intent. No clear checkout or return to shelf is observed.","latency_ms":2451.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen reaching up to a high shelf and appears to be placing an item into her pocket or bag, consistent with concealment behavior. This action aligns with the L1 event 'conceal' and suggests intent to shoplift.","latency_ms":2691.1}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting041_x264__C_7__1","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer (C#7) is seen holding a white bag and then appears to place an item into it while standing near the counter. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, and the behavior of placing something into the bag without proceeding to checkout indicates concealment intent. The person’s posture and movement toward the bag, combined with the context of being near the counter but not paying, support shoplifting intent. No clear payment or return action is observed.","latency_ms":2280.3,"agreement_hint":"keep_ok","center_ts":173.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__1&file=kf_00_172.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__1&file=kf_01_173.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__1&file=kf_02_173.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__1&file=kf_03_174.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a person holding a white bag and standing near a counter with items, but there is no clear visual evidence of concealing unpaid merchandise into a bag, pocket, or clothing. The behavior appears consistent with normal shopping or carrying a personal bag.","latency_ms":1434.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the maroon top is seen moving items toward a white bag across consecutive frames, with actions consistent with hiding unpaid merchandise in the bag, matching the definition of concealment of unpaid items.","latency_ms":2300.3},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#7) is seen holding a white bag and then appears to place an item into it while standing near the counter. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, and the behavior of placing something into the bag without proceeding to checkout indicates concealment intent. The person’s posture and movement toward the bag, combined with the context of being near the counter but not paying, support shoplifting intent. No clear payment or return action is observed.","latency_ms":2280.3},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the maroon shirt is seen placing an item into their bag, which is a clear act of concealment. This behavior aligns with shoplifting intent as the item is not visibly placed into a shopping cart or basket for checkout.","latency_ms":2273.1}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting041_x264__C_7__conceal__0","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with the person's posture (bending slightly toward the counter while holding a child), suggests an attempt to hide an item in their clothing or pocket. The multi-frame context shows no clear payment action, and the person is not visibly placing items into a cart or basket. The high model score (0.85) and legacy streak (5) support this interpretation despite low trajectory evidence.","latency_ms":2778.1,"agreement_hint":"keep_ok","center_ts":15.566666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__conceal__0&file=kf_00_14.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__conceal__0&file=kf_01_15.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__conceal__0&file=kf_02_15.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__conceal__0&file=kf_03_16.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.4,"agreement_hint":"uncertain","rationale":"The L1 event suggests a concealment into a pocket at the hip, but the provided keyframes show only general store activity with people browsing and holding items. No clear visual evidence of hiding merchandise in clothing or a bag is visible across the frames.","latency_ms":1578.8},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the blue top is observed over consecutive frames moving an item toward their hip pocket (consistent with the L1 conceal event subtype of pocket), showing multi-frame behavior of hiding an unpaid product on their person.","latency_ms":2859.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with the person's posture (bending slightly toward the counter while holding a child), suggests an attempt to hide an item in their clothing or pocket. The multi-frame context shows no clear payment action, and the person is not visibly placing items into a cart or basket. The high model score (0.85) and legacy streak (5) support this interpretation despite low trajectory evidence.","latency_ms":2778.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is at a checkout counter, interacting with the cashier and appears to be in the process of paying for items. There is no visible concealment or intent to hide merchandise.","latency_ms":1801.8}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting041_x264__C_7__qty_spike__5","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer (C#7) is seen holding a white bag and repeatedly reaching toward the counter area while another person stands nearby. The L1 event 'qty_spike' with 'taken_proxy>=2' suggests multiple items were taken, and the behavior of lingering near the counter without placing items in a cart or proceeding to checkout indicates intent to conceal unpaid merchandise. The white bag appears to be used for hiding items, consistent with concealment behavior across frames.","latency_ms":3008.0,"agreement_hint":"keep_ok","center_ts":173.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__qty_spike__5&file=kf_00_172.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__qty_spike__5&file=kf_01_173.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__qty_spike__5&file=kf_02_173.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__qty_spike__5&file=kf_03_174.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a person holding a white bag and interacting with merchandise at a counter, but there is no clear visual evidence of concealing unpaid items into pockets, clothing, or a personal bag. The behavior appears consistent with normal shopping or browsing.","latency_ms":1362.8},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the individual in the maroon top is seen moving items toward their white bag, with actions consistent with hiding unpaid merchandise into the bag rather than normal shopping activity. The L1 qty_spike event aligns with this observed behavior of transferring items to a bag without visible checkout activity.","latency_ms":3093.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#7) is seen holding a white bag and repeatedly reaching toward the counter area while another person stands nearby. The L1 event 'qty_spike' with 'taken_proxy>=2' suggests multiple items were taken, and the behavior of lingering near the counter without placing items in a cart or proceeding to checkout indicates intent to conceal unpaid merchandise. The white bag appears to be used for hiding items, consistent with concealment behavior across frames.","latency_ms":3008.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the maroon top is seen placing an item into their bag, which is a clear act of concealment. This behavior aligns with shoplifting intent as they attempt to hide unpaid merchandise.","latency_ms":1617.9}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"zenodo_theft__main220_Trim5__C_1__conceal__0","clip_id":"zenodo_theft__main220_Trim5","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' and zone 'hip', supported by trajectory evidence showing co-disappearance (item vanishes from view after interaction) and high model score (0.85). Visually, the person picks up an item (frame 1), then in subsequent frames (2–4) walks away while holding the basket but also appears to have the item tucked into their pocket or waist area—consistent with concealment behavior. No visible placement into cart/basket or return to shelf occurs; no checkout is seen. This meets the criteria for 'conceal_unpaid' as defined: hiding product on body with multi-frame intent, not just a single grab.","latency_ms":3486.8,"agreement_hint":"keep_ok","center_ts":1.5666666666666667,"corpus":"zenodo","media_url":null,"playable":false,"keyframe_urls":["/api/path1_case_keyframe?case_id=zenodo_theft__main220_Trim5__C_1__conceal__0&file=kf_00_0.43s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main220_Trim5__C_1__conceal__0&file=kf_01_1.20s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main220_Trim5__C_1__conceal__0&file=kf_02_1.93s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main220_Trim5__C_1__conceal__0&file=kf_03_2.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person is seen holding a shopping basket while reaching toward the shelf, and the L1 event indicates a concealment action into a pocket at the hip. The multi-frame sequence shows the person moving through the aisle with the basket, consistent with hiding merchandise rather than normal browsing or checkout.","latency_ms":1373.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer is seen moving an item from the shelf toward his hip pocket (as indicated by L1 conceal event subtype pocket) across sequential frames, hiding the item from view rather than placing it into the shopping basket, consistent with concealing unpaid merchandise.","latency_ms":2790.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' and zone 'hip', supported by trajectory evidence showing co-disappearance (item vanishes from view after interaction) and high model score (0.85). Visually, the person picks up an item (frame 1), then in subsequent frames (2–4) walks away while holding the basket but also appears to have the item tucked into their pocket or waist area—consistent with concealment behavior. No visible placement into cart/basket or return to shelf occurs; no checkout is seen. This meets the criteria for 'conceal_unpaid' as defined: hiding product on body with multi-frame intent, not just a single grab.","latency_ms":3486.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is holding a shopping basket and examining products on the shelves, consistent with normal shopping behavior. There is no visible concealment of merchandise into a bag, pocket, or under clothing across the frames.","latency_ms":2492.2}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"zenodo_theft__main303_Trim1__C_1__0","clip_id":"zenodo_theft__main303_Trim1","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer is holding a black bag and repeatedly brings his hand to the front of his torso (e.g., frame 1 and 2), consistent with placing an item inside the bag or under his shirt. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, but more importantly, the multi-frame behavior—specifically the repeated hand-to-bag/torso motion while walking through the aisle—indicates concealment intent rather than normal shopping. No items are seen placed in a cart or basket; instead, the bag is carried openly but used for hiding. This matches the definition of 'conceal_unpaid': putting a product into a bag/pocket/under clothes, inferred from overall multi-frame behavior.","latency_ms":3735.6,"agreement_hint":"keep_ok","center_ts":3.566666666666667,"corpus":"zenodo","media_url":null,"playable":false,"keyframe_urls":["/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__0&file=kf_00_2.43s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__0&file=kf_01_3.20s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__0&file=kf_02_3.93s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__0&file=kf_03_3.93s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.6,"agreement_hint":"uncertain","rationale":"The frames show a man walking down an aisle holding a black bag, but there is no clear visual evidence of him placing unpaid merchandise into the bag or concealing items on his person. The L1 qty_spike event is a soft hint and not sufficient without matching visual concealment evidence.","latency_ms":918.1},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the individual is seen adjusting a large black bag against their torso, then lifting it to their shoulder in a manner consistent with concealing unpaid merchandise within the bag, with no visible payment activity to indicate normal checkout. The L1 qty_spike event aligns with the behavior of taking items to conceal, matching multi-frame hiding intent.","latency_ms":3483.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is holding a black bag and repeatedly brings his hand to the front of his torso (e.g., frame 1 and 2), consistent with placing an item inside the bag or under his shirt. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, but more importantly, the multi-frame behavior—specifically the repeated hand-to-bag/torso motion while walking through the aisle—indicates concealment intent rather than normal shopping. No items are seen placed in a cart or basket; instead, the bag is carried openly but used for hiding. This matches the definition of 'conceal_unpaid': putting a product into a bag/pocket/under clothes, inferred from overall multi-frame behavior.","latency_ms":3735.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their backpack while walking through the aisle, which indicates an intent to conceal unpaid merchandise. This behavior aligns with shoplifting intent.","latency_ms":2044.7}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"zenodo_theft__main303_Trim1__C_1__conceal__0","clip_id":"zenodo_theft__main303_Trim1","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) is supported by visual evidence: the person repeatedly reaches toward the right side of their body while holding a large black bag, then later walks forward with the bag held close to their torso—consistent with hiding an item under clothing or in the bag. The trajectory analysis shows co-disappear (1.0) and dwell ratio 1.0, indicating sustained focus on concealment behavior. No visible payment or return actions occur; no items are placed in cart or basket. This aligns with 'conceal_unpaid' per rules: multi-frame intent to hide unpaid merchandise, not just browsing.","latency_ms":3224.0,"agreement_hint":"keep_ok","center_ts":1.5666666666666667,"corpus":"zenodo","media_url":null,"playable":false,"keyframe_urls":["/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__conceal__0&file=kf_00_0.43s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__conceal__0&file=kf_01_1.20s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__conceal__0&file=kf_02_1.93s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__conceal__0&file=kf_03_2.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The sequence of frames shows the person holding a black backpack open in front of their torso while manipulating an item near the bag's opening, consistent with concealing merchandise. The L1 event subtype 'under_clothes' and model score support this, and the multi-frame behavior indicates hiding intent rather than normal browsing.","latency_ms":1689.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the individual adjusts a large black bag while in the snack aisle, with L1 event data indicating concealment under clothes (consistent with hiding unpaid merchandise). The multi-frame behavior shows intentional manipulation of the bag to hide items, matching the conceal_unpaid label criteria.","latency_ms":3569.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) is supported by visual evidence: the person repeatedly reaches toward the right side of their body while holding a large black bag, then later walks forward with the bag held close to their torso—consistent with hiding an item under clothing or in the bag. The trajectory analysis shows co-disappear (1.0) and dwell ratio 1.0, indicating sustained focus on concealment behavior. No visible payment or return actions occur; no items are placed in cart or basket. This aligns with 'conceal_unpaid' per rules: multi-frame intent to hide unpaid merchandise, not just browsing.","latency_ms":3224.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen walking through the aisle while adjusting a backpack, which aligns with the L1 event 'conceal' indicating potential concealment of unpaid merchandise. The behavior suggests an intent to hide items on their person.","latency_ms":2615.3}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"zenodo_theft__main303_Trim1__C_1__qty_spike__1","clip_id":"zenodo_theft__main303_Trim1","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer is walking down the aisle with a black bag slung over his shoulder, and in the first frame, he is seen adjusting or pressing his hand against the front of the bag near his chest—consistent with placing or securing an item inside. His posture and hand motion suggest concealment rather than casual carrying. The L1 event 'qty_spike' (with taken_proxy=2) supports multiple items being taken, and combined with the visual of him holding the bag close to his body while walking away from shelves, this indicates intent to hide unpaid merchandise. No items are seen being placed in a cart or returned to shelves; instead, the bag’s position and his actions align with concealment.","latency_ms":3344.7,"agreement_hint":"keep_ok","center_ts":3.566666666666667,"corpus":"zenodo","media_url":null,"playable":false,"keyframe_urls":["/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__qty_spike__1&file=kf_00_2.43s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__qty_spike__1&file=kf_01_3.20s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__qty_spike__1&file=kf_02_3.93s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__qty_spike__1&file=kf_03_3.93s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.6,"agreement_hint":"uncertain","rationale":"The frames show a man walking down an aisle holding a black bag, but there is no visible merchandise being concealed into the bag, pockets, or clothing. The L1 qty_spike event is a soft hint only and lacks matching visual evidence of concealment.","latency_ms":1410.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual is seen placing a black bag under their shirt (concealing it against their torso) and then securing it over their shoulder, consistent with hiding an unpaid item on their person across sequential frames. The L1 qty_spike event supports the inference of taking items to conceal, matching the visual behavior of hiding a bag under clothing.","latency_ms":2930.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is walking down the aisle with a black bag slung over his shoulder, and in the first frame, he is seen adjusting or pressing his hand against the front of the bag near his chest—consistent with placing or securing an item inside. His posture and hand motion suggest concealment rather than casual carrying. The L1 event 'qty_spike' (with taken_proxy=2) supports multiple items being taken, and combined with the visual of him holding the bag close to his body while walking away from shelves, this indicates intent to hide unpaid merchandise. No items are seen being placed in a cart or returned to shelves; instead, the bag’s position and his actions align with concealment.","latency_ms":3344.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their backpack while walking through the aisle, which indicates an intent to conceal unpaid merchandise. This behavior aligns with the 'conceal_unpaid' label as it shows a clear action of hiding an item on their person.","latency_ms":8476.4}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"dcsass__demo_dcsass_03__C_2__conceal__0","clip_id":"dcsass__demo_dcsass_03","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen making a deliberate motion consistent with concealing an item into their pocket or clothing, as indicated by the L1 event 'conceal' and supported by the visual evidence of their hand positioning near their hip area.","latency_ms":2629.2,"agreement_hint":"keep_ok","center_ts":1.9666666666666666,"corpus":"demo","media_url":"/api/media/sample/demo_dcsass_03.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=dcsass__demo_dcsass_03__C_2__conceal__0&file=kf_00_0.83s.jpg","/api/path1_case_keyframe?case_id=dcsass__demo_dcsass_03__C_2__conceal__0&file=kf_01_1.60s.jpg","/api/path1_case_keyframe?case_id=dcsass__demo_dcsass_03__C_2__conceal__0&file=kf_02_2.33s.jpg","/api/path1_case_keyframe?case_id=dcsass__demo_dcsass_03__C_2__conceal__0&file=kf_03_2.97s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The L1 event suggests a concealment into a pocket at the hip, but the provided keyframes are too blurry and low-resolution to visually confirm any item being hidden. The person in the blue cap is seen handling something near their chest/waist, but without clear visual evidence of the item or the concealment action, a definitive label cannot be assigned.","latency_ms":1409.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Multi-frame visual evidence shows a customer (person P#2) moving an item toward their hip pocket, consistent with the L1 conceal event subtype of pocket concealment, indicating hiding an unpaid product on their body.","latency_ms":2886.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with the trajectory evidence showing co-disappearance (item vanishes from view after approach) and high dwell ratio (0.833), strongly suggests the person is concealing an item in their pocket or clothing. The person's hand movements near the hip area across multiple frames (13:09:17–13:09:19) are consistent with hiding merchandise, and the risk score, though low, aligns with this behavior. No visual of payment or return to shelf occurs, and the action is not typical browsing.","latency_ms":3145.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen making a deliberate motion consistent with concealing an item into their pocket or clothing, as indicated by the L1 event 'conceal' and supported by the visual evidence of their hand positioning near their hip area.","latency_ms":2629.2}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting012_x264__C_14__conceal__7","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual in the foreground is seen placing an item into their pocket, consistent with concealment behavior. The L1 event 'conceal' further supports this inference, as it aligns with the visual evidence of hiding unpaid merchandise.","latency_ms":1749.9,"agreement_hint":"keep_ok","center_ts":562.7666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_14__conceal__7&file=kf_00_561.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_14__conceal__7&file=kf_01_562.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_14__conceal__7&file=kf_02_563.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_14__conceal__7&file=kf_03_563.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show the person in a position consistent with hiding merchandise near the waist area while browsing the display.","latency_ms":1548.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.85,"agreement_hint":"miss_pos","rationale":"The person in the white shirt is handling and examining fabric products on the store table, which is normal shopping behavior consistent with browsing merchandise, with no visual evidence of concealing unpaid items into a bag, pocket, or under clothes. The L1 conceal event is a soft hint that is not supported by clear visual evidence of hiding merchandise.","latency_ms":3134.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (1.0) and high dwell ratio (0.833), indicates the customer likely concealed an item in their pocket or waist area. The person’s posture—bending slightly, hand near hip/low torso—and the absence of visible payment or cart placement across multiple frames support concealment intent rather than browsing or checkout. No clear visual of the item being hidden is seen in these frames, but the multi-frame behavioral pattern and L1 metadata strongly suggest unpaid concealment.","latency_ms":3048.4},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the foreground is seen placing an item into their pocket, consistent with concealment behavior. The L1 event 'conceal' further supports this inference, as it aligns with the visual evidence of hiding unpaid merchandise.","latency_ms":1749.9}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting012_x264__C_20__conceal__4","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen placing a large, patterned fabric item into their bag or pocket area near the checkout counter, consistent with concealment behavior. The surrounding context of other shoppers and staff does not contradict this intent.","latency_ms":2191.8,"agreement_hint":"keep_ok","center_ts":417.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_20__conceal__4&file=kf_00_416.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_20__conceal__4&file=kf_01_416.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_20__conceal__4&file=kf_02_417.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_20__conceal__4&file=kf_03_418.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a model score of 0.85, and the keyframes show the person in an orange top interacting with merchandise at a display table. While the exact concealment is not perfectly clear in the low-resolution frames, the multi-frame behavior and L1 evidence suggest the person is hiding unpaid merchandise on their body.","latency_ms":1494.8},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the yellow top interacts with merchandise across multiple frames, with L1 event indicating concealment in a hip pocket; multi-frame behavior shows handling of goods consistent with hiding unpaid items, matching the conceal_unpaid criteria.","latency_ms":3008.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after interaction) and high model score (0.85), strongly indicates the person is concealing merchandise in their pocket or clothing. The multi-frame behavior shows them handling fabric items near the counter, then moving with a posture suggesting hidden placement—consistent with shoplifting intent. No payment or visible return to shelf occurs.","latency_ms":2698.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing a large, patterned fabric item into their bag or pocket area near the checkout counter, consistent with concealment behavior. The surrounding context of other shoppers and staff does not contradict this intent.","latency_ms":2191.8}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting012_x264__C_34__conceal__8","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer is seen placing an item into their pocket (as indicated by the L1 event 'conceal' and visual evidence of hand movement toward the hip area), which constitutes hiding unpaid merchandise on their body.","latency_ms":2347.1,"agreement_hint":"keep_ok","center_ts":659.9666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_34__conceal__8&file=kf_00_658.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_34__conceal__8&file=kf_01_659.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_34__conceal__8&file=kf_02_660.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_34__conceal__8&file=kf_03_661.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The L1 event suggests a concealment into a pocket at the hip, but the provided keyframes do not clearly show a person concealing unpaid merchandise. The frames show a shop setting with people browsing and a person seated, but no visible act of hiding an item into clothing or a bag is evident. Without clear visual confirmation of concealment, the label is uncertain.","latency_ms":1560.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The male individual in the white shirt is observed moving his hand toward his hip pocket (consistent with the L1 event's subtype of pocket concealment) across sequential frames, with multi-frame behavior indicating an action to hide an unpaid item in his clothing pocket, matching the conceal_unpaid definition.","latency_ms":3128.7},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (1.0) and dwell ratio 1.0 across 4 frames, indicates the person likely concealed an item in their pocket or waist area. The person is seated near a table with merchandise, and the timing and behavior align with hiding an item without payment. No visual of the actual concealment is seen, but the multi-frame pattern and high model score (0.85) support this inference.","latency_ms":2752.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item into their pocket (as indicated by the L1 event 'conceal' and visual evidence of hand movement toward the hip area), which constitutes hiding unpaid merchandise on their body.","latency_ms":2347.1}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting014_x264__C_1__conceal__1","clip_id":"ucf_theft__Shoplifting014_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen placing an item into their pocket or waistband area, which is consistent with concealment behavior. This action, combined with the L1 event 'conceal' and the visual evidence of the item being hidden on the body, strongly suggests intent to steal unpaid merchandise.","latency_ms":1722.4,"agreement_hint":"keep_ok","center_ts":754.7666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting014_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_1__conceal__1&file=kf_00_753.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_1__conceal__1&file=kf_01_754.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_1__conceal__1&file=kf_02_755.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_1__conceal__1&file=kf_03_755.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the orange outfit is seen moving through the store and appears to be concealing an item under her clothing or in a bag, consistent with the L1 conceal event indicating a pocket/hip concealment.","latency_ms":1336.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the patterned top and red pants is observed moving an item from the shelf area toward their hip pocket across consecutive frames, matching the L1 conceal event subtype of pocket concealment, with visual evidence of hiding an unpaid product on their person.","latency_ms":2729.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' and zone 'hip', and the visual sequence shows the person (in red/orange attire) turning away from the shelf, bringing their hands toward their hip area while holding a dark item, consistent with pocketing or concealing merchandise under clothing. The multi-frame behavior supports concealment intent rather than browsing or checkout. No payment is observed, and the risk score, though low, aligns with the visual evidence of hiding an item on the body.","latency_ms":2899.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their pocket or waistband area, which is consistent with concealment behavior. This action, combined with the L1 event 'conceal' and the visual evidence of the item being hidden on the body, strongly suggests intent to steal unpaid merchandise.","latency_ms":1722.4}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting014_x264__C_4__conceal__0","clip_id":"ucf_theft__Shoplifting014_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen placing an item under their clothing, which is consistent with concealment behavior. The L1 event 'conceal' further supports this inference.","latency_ms":2596.6,"agreement_hint":"keep_ok","center_ts":87.96666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting014_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_4__conceal__0&file=kf_00_86.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_4__conceal__0&file=kf_01_87.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_4__conceal__0&file=kf_02_88.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_4__conceal__0&file=kf_03_89.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The person in red is seen handling merchandise near a rack and then turning away while adjusting her clothing, consistent with concealing an item under her clothes. The L1 event 'conceal' with subtype 'under_clothes' and high model score supports this, and the multi-frame sequence shows a clear hiding action rather than normal browsing.","latency_ms":1563.0},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer interacts with clothing on a rack, and multi-frame behavior shows an action consistent with hiding an item under her clothing (matching the L1 conceal event subtype of under_clothes), with no visible payment action or return to shelf for the item, indicating concealment of unpaid merchandise.","latency_ms":3259.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 0.6667) indicates the person likely concealed an item under clothing. In the frames, the person is seen adjusting her headscarf/face area while holding a garment, which aligns with hiding an item under clothes — a classic shoplifting tactic. No payment or return to shelf is observed, and the behavior is inconsistent with normal browsing.","latency_ms":2715.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item under their clothing, which is consistent with concealment behavior. The L1 event 'conceal' further supports this inference.","latency_ms":2596.6}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting014_x264__C_77__conceal__2","clip_id":"ucf_theft__Shoplifting014_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen placing an item into their pocket, which is consistent with concealment behavior. The L1 event 'conceal' further supports this inference.","latency_ms":1917.0,"agreement_hint":"keep_ok","center_ts":1947.9666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting014_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_77__conceal__2&file=kf_00_1946.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_77__conceal__2&file=kf_01_1947.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_77__conceal__2&file=kf_02_1948.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_77__conceal__2&file=kf_03_1949.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person is seen holding a dark item and moving it toward her hip/pocket area while turning away from the camera, consistent with the L1 conceal event indicating a pocket concealment at the hip. The multi-frame sequence shows the item disappearing from view near her body, suggesting unpaid concealment rather than normal browsing.","latency_ms":1657.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Multi-frame visual evidence shows the customer moving an item toward their hip pocket (consistent with the L1 conceal event subtype of pocket), hiding the item from view as part of a shoplifting-related concealment action.","latency_ms":2608.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with the trajectory evidence showing co-disappearance (item vanishes from visible hand into hip area) and high dwell ratio (0.8), strongly indicates concealment. The person’s posture and movement—reaching toward the hip while holding an item in the other hand, then turning away without placing it in a cart or basket—supports intent to hide unpaid merchandise. No payment or checkout is observed.","latency_ms":2693.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their pocket, which is consistent with concealment behavior. The L1 event 'conceal' further supports this inference.","latency_ms":1917.0}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting030_x264__C_10__conceal__5","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen placing an item into their backpack, which is a clear act of concealing unpaid merchandise. This behavior aligns with the 'conceal_unpaid' label as it involves hiding an item on their person without proceeding to checkout.","latency_ms":2385.8,"agreement_hint":"keep_ok","center_ts":222.76666666666668,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_10__conceal__5&file=kf_00_221.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_10__conceal__5&file=kf_01_222.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_10__conceal__5&file=kf_02_223.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_10__conceal__5&file=kf_03_223.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.4,"agreement_hint":"uncertain","rationale":"The overhead frames show multiple shoppers near a display counter, but no clear concealment into a pocket, bag, or clothing is visible. The L1 conceal hint is not sufficiently supported by the visuals, so the action cannot be confirmed.","latency_ms":1275.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#10) is observed moving an item toward their hip pocket across sequential frames, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior consistent with hiding an unpaid product.","latency_ms":2425.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (1.0) and high dwell ratio (0.833), indicates the person likely concealed an item in their pocket or waist area. The person’s posture and hand movement near the hip area across multiple frames support this, and the risk score is low but the visual trajectory pattern strongly suggests concealment rather than normal browsing. No payment or return to shelf is observed.","latency_ms":3096.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their backpack, which is a clear act of concealing unpaid merchandise. This behavior aligns with the 'conceal_unpaid' label as it involves hiding an item on their person without proceeding to checkout.","latency_ms":2385.8}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting030_x264__C_11__1","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"steal","vlm_steal":true,"confidence":0.9,"rationale":"The person in the orange shirt is seen concealing an item under their arm while standing near the checkout counter, indicating clear intent to shoplift. This behavior aligns with the 'steal' label as it shows concealment of unpaid merchandise.","latency_ms":2066.3,"agreement_hint":"keep_ok","center_ts":203.16666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__1&file=kf_00_202.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__1&file=kf_01_202.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__1&file=kf_02_203.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__1&file=kf_03_204.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show multiple people in a retail environment, with some individuals holding or examining items near shelves and counters. There is no clear visual evidence of concealing unpaid merchandise into bags, pockets, or clothing across the frames. The L1 event is a soft qty_spike hint without matching visual concealment evidence, so the behavior appears to be normal shopping or browsing.","latency_ms":1452.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the sleeveless patterned top moves an item from the shelf into their brown bag across sequential frames, hiding the product in the bag rather than placing it visibly for checkout or return, matching the definition of concealing unpaid merchandise.","latency_ms":3074.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer in the blue shirt (C#11) is seen reaching toward a shelf, then quickly moving with a sudden motion while holding an item close to their body. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, and the person’s posture—bending slightly, keeping arms close, and moving away from the display without placing the item in a visible cart or basket—indicates concealment intent. No clear checkout or return action is observed, and the behavior deviates from normal browsing. The presence of other customers nearby does not negate the suspicious multi-frame pattern of hiding merchandise.","latency_ms":3507.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"steal","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person in the orange shirt is seen concealing an item under their arm while standing near the checkout counter, indicating clear intent to shoplift. This behavior aligns with the 'steal' label as it shows concealment of unpaid merchandise.","latency_ms":2066.3}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting030_x264__C_11__conceal__2","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.95,"rationale":"The individual is seen bending over and placing an item into their waistband or pocket area, consistent with concealing unpaid merchandise. This behavior aligns with the 'conceal' L1 event and demonstrates clear intent to hide the item from view.","latency_ms":2831.2,"agreement_hint":"keep_ok","center_ts":124.76666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__conceal__2&file=kf_00_123.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__conceal__2&file=kf_01_124.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__conceal__2&file=kf_02_125.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__conceal__2&file=kf_03_125.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The L1 event suggests a concealment into a pocket at the hip, but the provided keyframes are too low-resolution and distant to visually confirm any item being hidden. No clear multi-frame concealment behavior is discernible from the images alone.","latency_ms":1375.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#11) is observed in multi-frame behavior consistent with concealing an unpaid item in their hip pocket, matching the L1 conceal event subtype of pocket concealment, with visual trajectory and item evidence supporting the hiding action across frames.","latency_ms":2473.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view) and high model score (0.85), strongly indicates the person is hiding an item in their pocket or clothing. The multi-frame behavior shows the individual leaning forward and making a motion consistent with concealing an object at the hip, which aligns with the 'conceal_unpaid' label per rules—specifically, concealment into clothing/pocket, not just holding. No payment or visible return to shelf occurs.","latency_ms":2794.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.95,"agreement_hint":"keep_ok","rationale":"The individual is seen bending over and placing an item into their waistband or pocket area, consistent with concealing unpaid merchandise. This behavior aligns with the 'conceal' L1 event and demonstrates clear intent to hide the item from view.","latency_ms":2831.2}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting030_x264__C_11__qty_spike__4","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"steal","vlm_steal":true,"confidence":0.9,"rationale":"The individual in the blue shirt is seen placing an item into their waistband or pocket area, which is consistent with concealment behavior. This action, combined with the proximity to the checkout counter and the presence of other shoppers, strongly suggests an intent to shoplift.","latency_ms":2136.6,"agreement_hint":"keep_ok","center_ts":203.16666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__qty_spike__4&file=kf_00_202.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__qty_spike__4&file=kf_01_202.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__qty_spike__4&file=kf_02_203.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__qty_spike__4&file=kf_03_204.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show multiple shoppers in a store, with individuals holding bags and items, but no clear visual evidence of concealing unpaid merchandise into pockets, bags, or clothing. The L1 qty_spike event is a soft hint and not sufficient without matching visual concealment.","latency_ms":1301.1},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the sleeveless patterned top moves their arm from reaching toward merchandise on the shelf to tucking an item into their brown bag across multiple consecutive frames, demonstrating clear concealment of an unpaid product.","latency_ms":2149.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer in the blue shirt (C#11) is seen reaching into a display area and then quickly moving toward their body while holding an item. In the final frame, they appear to be tucking or hiding the item under their clothing or into a bag, consistent with concealment behavior. The L1 event 'qty_spike' and 'taken_proxy>=2' support multiple items being taken, and the multi-frame sequence shows intent to hide rather than return or place in cart. No visible payment occurs, and the action is inconsistent with normal browsing.","latency_ms":2923.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"steal","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the blue shirt is seen placing an item into their waistband or pocket area, which is consistent with concealment behavior. This action, combined with the proximity to the checkout counter and the presence of other shoppers, strongly suggests an intent to shoplift.","latency_ms":2136.6}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting030_x264__C_1__conceal__1","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer is seen placing an item into their pocket, which is a clear act of concealment. This behavior aligns with the 'conceal' event type and indicates an intent to steal unpaid merchandise.","latency_ms":1637.5,"agreement_hint":"keep_ok","center_ts":92.76666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__conceal__1&file=kf_00_91.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__conceal__1&file=kf_01_92.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__conceal__1&file=kf_02_93.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__conceal__1&file=kf_03_93.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show a person in the foreground with a bag and hand near the hip area, consistent with hiding merchandise. While the visual evidence is not perfectly clear, the combination of the L1 conceal event and the observed posture supports concealment of unpaid merchandise.","latency_ms":1447.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#1) is observed moving an item toward their hip pocket across sequential frames, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior indicating hiding an unpaid product rather than normal shopping activity.","latency_ms":3199.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view) and high model score (0.85), strongly indicates the person is concealing an item in their pocket or clothing. The multi-frame behavior shows them standing near the counter while making a motion consistent with hiding an item, and no payment is observed. This aligns with 'conceal_unpaid' per rules: concealment into body/pocket is confirmed by both visual context and L1 metadata.","latency_ms":3152.2},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item into their pocket, which is a clear act of concealment. This behavior aligns with the 'conceal' event type and indicates an intent to steal unpaid merchandise.","latency_ms":1637.5}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting030_x264__C_20__conceal__6","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen placing an item into their pocket, which is a clear act of concealment. This behavior aligns with the 'conceal_unpaid' label as it indicates an intent to hide merchandise without paying.","latency_ms":1882.9,"agreement_hint":"keep_ok","center_ts":313.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_20__conceal__6&file=kf_00_312.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_20__conceal__6&file=kf_01_313.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_20__conceal__6&file=kf_02_313.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_20__conceal__6&file=kf_03_314.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show a person in a red top and dark pants near a display counter with a hand-to-hip motion consistent with hiding merchandise. While the visual evidence is not perfectly clear, the multi-frame behavior and L1 context support concealment.","latency_ms":1353.1},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the red shirt performs a sequence of actions consistent with concealing an unpaid item: they bend down near the shelf area, then move their hands toward their hip pocket (matching the L1 event's subtype of pocket concealment), with multi-frame behavior showing the action of hiding an item on their person rather than normal browsing or checkout.","latency_ms":2916.7},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly labels 'conceal' with subtype 'pocket' and zone 'hip', and the trajectory evidence shows high dwell ratio (0.833) and co-disappear (1.0), indicating the item was hidden on the person's body. The multi-frame behavior shows the customer in close proximity to a display, then moving away with no visible payment or cart placement, consistent with concealment intent. No checkout or return is observed.","latency_ms":2164.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their pocket, which is a clear act of concealment. This behavior aligns with the 'conceal_unpaid' label as it indicates an intent to hide merchandise without paying.","latency_ms":1882.9}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting030_x264__C_28__conceal__7","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual in the red top is seen placing an item into their pocket, consistent with concealment behavior. This action aligns with the L1 event 'conceal' and indicates intent to hide unpaid merchandise.","latency_ms":2449.6,"agreement_hint":"keep_ok","center_ts":363.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_28__conceal__7&file=kf_00_362.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_28__conceal__7&file=kf_01_362.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_28__conceal__7&file=kf_02_363.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_28__conceal__7&file=kf_03_364.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.3,"agreement_hint":"uncertain","rationale":"The keyframes show multiple people in a store, but no clear visual evidence of a person concealing unpaid merchandise into a bag, pocket, or clothing. The L1 conceal event is a soft hint and cannot be verified from the provided frames.","latency_ms":852.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the light blue shirt performs a sequence of actions across frames: moving toward the right-side display, bending down toward their hip area (matching the L1 event's subtype of pocket concealment), consistent with hiding an unpaid item on their person. The multi-frame behavior aligns with concealment intent rather than normal shopping activity.","latency_ms":3302.3},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' at the hip zone, and the trajectory analysis shows a high co-disappear score (1.0) and dwell ratio (1.0), indicating the item was hidden on the person's body rather than placed in a visible bag or cart. Although no direct visual of the item being pocketed is seen in these frames, the multi-frame behavior (approach, pause at hip, then move away without placing in cart) combined with the strong L1 evidence supports concealment intent. The risk score is low but the model and trajectory scores are high, and the weak label is 'positive' for theft.","latency_ms":2981.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the red top is seen placing an item into their pocket, consistent with concealment behavior. This action aligns with the L1 event 'conceal' and indicates intent to hide unpaid merchandise.","latency_ms":2449.6}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting030_x264__C_2__conceal__0","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is crouched near the checkout counter, with their hands positioned in a way that suggests they are concealing an item under their clothing or in a hidden location. This behavior aligns with the 'under_clothes' concealment pattern indicated by the L1 event and visual evidence.","latency_ms":2537.9,"agreement_hint":"keep_ok","center_ts":16.766666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_2__conceal__0&file=kf_00_15.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_2__conceal__0&file=kf_01_16.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_2__conceal__0&file=kf_02_17.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_2__conceal__0&file=kf_03_17.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the red shirt is seen bending down and interacting with merchandise in a manner consistent with concealing items under clothing or in a bag, as indicated by the L1 event subtype 'under_clothes' and the visual evidence of the person's posture and actions across multiple frames.","latency_ms":1312.8},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the red shirt is holding a product against their torso under their clothing, consistent with multi-frame behavior of concealing an unpaid item, matching the L1 conceal event subtype of under_clothes.","latency_ms":2999.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person (P#2, red top) is crouched near a display counter and appears to be placing an item under their clothing or into a hidden location, consistent with the L1 event 'conceal' and meta subtype 'under_clothes'. The posture, prolonged crouch, and lack of visible payment or return to shelf indicate intent to conceal unpaid merchandise. This matches the definition of 'conceal_unpaid' as hiding items on the body across multiple frames.","latency_ms":2525.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is crouched near the checkout counter, with their hands positioned in a way that suggests they are concealing an item under their clothing or in a hidden location. This behavior aligns with the 'under_clothes' concealment pattern indicated by the L1 event and visual evidence.","latency_ms":2537.9}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting039_x264__C_2__conceal__0","clip_id":"ucf_theft__Shoplifting039_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen concealing an item into their pocket (as indicated by the L1 event 'conceal' with subtype 'pocket'), which aligns with behavior consistent with shoplifting intent. The person's actions across the frames suggest an attempt to hide merchandise without paying.","latency_ms":1958.6,"agreement_hint":"keep_ok","center_ts":10.766666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting039_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__conceal__0&file=kf_00_9.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__conceal__0&file=kf_01_10.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__conceal__0&file=kf_02_11.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__conceal__0&file=kf_03_11.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The keyframes show a person walking through the store, but no clear concealment of merchandise into a bag, pocket, or clothing is visible. The L1 event suggests a concealment at the hip, but the visual evidence does not confirm this action across the frames.","latency_ms":1074.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual is observed moving from the center of the store to the right-side shelf area, with their hand positioned at their hip (matching the L1 conceal event subtype of pocket) across sequential frames, and exits the frame after this action, consistent with hiding an unpaid item in their clothing.","latency_ms":2033.7},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappearance (item vanishes from view) and high score (0.759), strongly indicates the person concealed an item in their pocket or clothing. The person's posture and movement toward the exit without proceeding to checkout support this. No visual of the item being placed in a bag or cart, but the 'pocket' subtype and high confidence in concealment align with 'conceal_unpaid'.","latency_ms":2583.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen concealing an item into their pocket (as indicated by the L1 event 'conceal' with subtype 'pocket'), which aligns with behavior consistent with shoplifting intent. The person's actions across the frames suggest an attempt to hide merchandise without paying.","latency_ms":1958.6}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_29__conceal__5","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer is seen placing an item under their clothing, which is consistent with concealment behavior. This action aligns with the L1 event 'conceal' and indicates an intent to hide unpaid merchandise.","latency_ms":1618.3,"agreement_hint":"keep_ok","center_ts":146.76666666666668,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__conceal__5&file=kf_00_145.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__conceal__5&file=kf_01_146.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__conceal__5&file=kf_02_147.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__conceal__5&file=kf_03_147.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action under clothes, and the multi-frame sequence shows a person in the foreground handling merchandise near their waistline, consistent with hiding unpaid items.","latency_ms":1489.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual with dark hair and white top is observed moving a clothing item toward their underclothes (midsection) across sequential frames, consistent with hiding an unpaid product under clothing, matching the L1 conceal event subtype of under_clothes.","latency_ms":2778.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 1.0) indicates the person likely concealed an item under clothing. The person’s posture—bending slightly, hand near waist/hip area, and holding a bag while standing close to others—supports concealment intent. No visual of the item being placed in a bag or pocket is seen, but the multi-frame behavior (dwell, co-disappear, and lack of visible re-emergence) strongly suggests unpaid concealment. This aligns with the rule that only steal/conceal_unpaid when visuals show concealment into bag/pocket/clothes or clear multi-frame hiding intent.","latency_ms":3463.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item under their clothing, which is consistent with concealment behavior. This action aligns with the L1 event 'conceal' and indicates an intent to hide unpaid merchandise.","latency_ms":1618.3}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_3__conceal__13","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer is seen picking up a purple garment and placing it into their bag, which aligns with the 'conceal' L1 event indicating intent to hide unpaid merchandise. The behavior across frames shows clear concealment into the bag.","latency_ms":2400.8,"agreement_hint":"keep_ok","center_ts":485.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_3__conceal__13&file=kf_00_484.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_3__conceal__13&file=kf_01_484.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_3__conceal__13&file=kf_02_485.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_3__conceal__13&file=kf_03_486.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the multi-frame sequence shows the person handling merchandise in a manner consistent with hiding it on their body rather than browsing or checking out.","latency_ms":1564.4},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the white top is observed moving a purple garment from a display rack and concealing it under their outer clothing at their hip, consistent with the L1 conceal event subtype of pocket/hip concealment, with multi-frame behavior showing the garment being hidden on their body rather than normal shopping activity.","latency_ms":3162.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' at hip level, and the trajectory analysis shows co-disappearance (item vanishes from view after interaction), dwell ratio of 1.0, and high model score (0.85). The person's behavior across frames shows them interacting with merchandise near the hip area, consistent with hiding an item in a pocket or under clothing, without placing it in a visible cart or basket. This aligns with 'conceal_unpaid' as defined: hiding product on the body with clear intent to avoid payment.","latency_ms":2901.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen picking up a purple garment and placing it into their bag, which aligns with the 'conceal' L1 event indicating intent to hide unpaid merchandise. The behavior across frames shows clear concealment into the bag.","latency_ms":2400.8}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_40__conceal__10","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer is seen placing an item into a bag or pocket area near their hip, consistent with concealment behavior. This action aligns with the L1 event 'conceal' and is supported by visual evidence across multiple frames.","latency_ms":2239.8,"agreement_hint":"keep_ok","center_ts":396.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_40__conceal__10&file=kf_00_395.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_40__conceal__10&file=kf_01_396.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_40__conceal__10&file=kf_02_396.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_40__conceal__10&file=kf_03_397.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the multi-frame sequence shows a person in the foreground interacting with merchandise in a manner consistent with hiding an item on their body.","latency_ms":1416.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#40) is observed over multiple frames moving an item toward their hip pocket (consistent with the L1 conceal event subtype of pocket), with multi-frame behavior showing intent to hide the item on their body rather than browse or checkout.","latency_ms":3646.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after interaction) and high model score (0.85), strongly indicates the person concealed an item in their pocket or clothing. The multi-frame behavior shows them interacting with merchandise near the hip area, consistent with hiding an unpaid item. No visual of payment or return to shelf is observed.","latency_ms":2528.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item into a bag or pocket area near their hip, consistent with concealment behavior. This action aligns with the L1 event 'conceal' and is supported by visual evidence across multiple frames.","latency_ms":2239.8}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_48__5","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen holding a garment close to their body and appears to be concealing it under their top or into their bag, consistent with shoplifting intent across multiple frames.","latency_ms":2868.3,"agreement_hint":"keep_ok","center_ts":444.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__5&file=kf_00_443.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__5&file=kf_01_444.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__5&file=kf_02_444.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__5&file=kf_03_445.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks without any visible concealment into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1243.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The woman in the white top is seen holding a dark garment and moving it toward her body/back area across sequential frames, consistent with hiding an unpaid product, supported by the L1 qty_spike event indicating a potential take of multiple items.","latency_ms":2945.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.8,"agreement_hint":"keep_ok","rationale":"The customer (C#48) is seen browsing and then, in the final frames, appears to be placing an item into a bag or pocket while turning away from the rack—consistent with concealment behavior. The L1 event 'qty_spike' and 'taken_proxy>=2' support multiple items being handled, and the multi-frame sequence shows intent to hide merchandise without paying. No visible checkout or return action occurs.","latency_ms":2025.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen holding a garment close to their body and appears to be concealing it under their top or into their bag, consistent with shoplifting intent across multiple frames.","latency_ms":2868.3}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_48__conceal__11","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen placing an item into their front pocket, which is a clear act of concealment. This behavior aligns with the 'conceal_unpaid' label as it indicates an intent to hide merchandise without paying.","latency_ms":2743.8,"agreement_hint":"keep_ok","center_ts":439.96666666666664,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__conceal__11&file=kf_00_438.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__conceal__11&file=kf_01_439.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__conceal__11&file=kf_02_440.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__conceal__11&file=kf_03_441.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The keyframes show a woman in a white top and blue jeans moving through the store and then reaching toward her waistband/hip area in a manner consistent with concealing an item, matching the L1 conceal event (subtype: pocket, zone: hip). The multi-frame sequence captures the concealment motion rather than mere browsing.","latency_ms":1557.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#48) is observed over multiple frames moving their hand toward their hip pocket (per L1 event subtype: pocket, zone: hip) while handling clothing, consistent with hiding an unpaid item on their person, matching the conceal_unpaid criteria of hiding merchandise in a pocket/on the body.","latency_ms":4239.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with high trajectory score (0.7429) and co-disappear signal (1.0), indicates the person likely concealed an item in their hip/pocket area. The person's body language—hand moving toward the hip area while walking away from the rack—and the context of being in a clothing store support this. No visual evidence shows the item being placed in a bag or returned to a shelf, and the risk score is low but the meta data strongly suggests concealment intent. This aligns with 'conceal_unpaid' as defined: hiding merchandise on the body without payment.","latency_ms":3013.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their front pocket, which is a clear act of concealment. This behavior aligns with the 'conceal_unpaid' label as it indicates an intent to hide merchandise without paying.","latency_ms":2743.8}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_48__qty_spike__12","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The person in the blue top is seen placing an item into her bag or under her clothing while browsing, which indicates an intent to conceal unpaid merchandise. This behavior aligns with shoplifting intent across multiple frames.","latency_ms":1846.4,"agreement_hint":"keep_ok","center_ts":444.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__qty_spike__12&file=kf_00_443.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__qty_spike__12&file=kf_01_444.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__qty_spike__12&file=kf_02_444.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__qty_spike__12&file=kf_03_445.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The keyframes show customers browsing and handling clothing on racks without any visible concealment into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding merchandise.","latency_ms":1783.8},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The woman in the white top is seen holding a dark bag and moving toward her torso/side, with multi-frame behavior showing she is concealing an item (consistent with hiding unpaid merchandise) rather than normal shopping actions like examining or placing items in a cart. The L1 qty_spike event aligns with this observed concealment behavior.","latency_ms":2825.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#48) is seen browsing and then, in the final frames, appears to be placing an item into a bag or pocket while turning away from the rack—consistent with concealment behavior. The L1 event 'qty_spike' with taken_proxy=2 and take_burst>=2/25s supports multiple items being handled quickly, and the visual sequence shows her moving toward the exit with a bag that may contain unpaid merchandise. No clear checkout or return action is observed.","latency_ms":2945.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person in the blue top is seen placing an item into her bag or under her clothing while browsing, which indicates an intent to conceal unpaid merchandise. This behavior aligns with shoplifting intent across multiple frames.","latency_ms":1846.4}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_4__conceal__0","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen placing an item into their waistband/pocket area, consistent with concealing unpaid merchandise. This behavior aligns with the 'conceal' L1 event and is supported by visual evidence across multiple frames.","latency_ms":1860.6,"agreement_hint":"keep_ok","center_ts":5.566666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__conceal__0&file=kf_00_4.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__conceal__0&file=kf_01_5.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__conceal__0&file=kf_02_5.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__conceal__0&file=kf_03_6.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The keyframes show a person in the center of the frame with a dark shoulder bag. Across the sequence, they appear to be interacting with merchandise while their body and bag are positioned in a way that suggests concealing an item, consistent with the L1 conceal event (subtype: pocket, zone: hip). The multi-frame behavior indicates hiding intent rather than normal browsing.","latency_ms":2055.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual is observed moving an item toward their hip pocket across sequential frames, consistent with hiding an unpaid item on their person, matching the L1 conceal event subtype of pocket concealment.","latency_ms":2411.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view) and high score (0.6748), indicates the person is hiding an item on their person. The multi-frame behavior shows the individual moving with a bag or item near their hip, consistent with concealment into pocket or under clothing. No payment or return to shelf is observed, supporting unpaid concealment intent.","latency_ms":2614.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their waistband/pocket area, consistent with concealing unpaid merchandise. This behavior aligns with the 'conceal' L1 event and is supported by visual evidence across multiple frames.","latency_ms":1860.6}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_71__conceal__14","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer is seen placing an item under their clothing, which is a clear concealment behavior indicating intent to shoplift. This is supported by the L1 event 'conceal' and the visual evidence of the item being hidden.","latency_ms":1812.0,"agreement_hint":"keep_ok","center_ts":662.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__conceal__14&file=kf_00_661.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__conceal__14&file=kf_01_662.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__conceal__14&file=kf_02_662.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__conceal__14&file=kf_03_663.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The keyframes show a person browsing clothing racks with a shoulder bag, but no clear concealment action (e.g., placing merchandise into the bag or under clothes) is visible across the frames. The L1 conceal hint is not corroborated by visual evidence.","latency_ms":1465.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer is repeatedly reaching into their open bag while browsing clothing racks, with L1 event data indicating a concealment event under clothes, consistent with multi-frame behavior of hiding an unpaid item.","latency_ms":2743.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 1.0) indicates the person likely concealed an item under their clothes. The person is standing near a clothing rack, and while no explicit visual of the concealment is seen in these frames, the consistent context and high-confidence L1 signal support concealment intent. No payment or visible return to shelf occurs, and the behavior aligns with shoplifting via under-clothes concealment.","latency_ms":2903.3},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item under their clothing, which is a clear concealment behavior indicating intent to shoplift. This is supported by the L1 event 'conceal' and the visual evidence of the item being hidden.","latency_ms":1812.0}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_87__7","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen picking up a red garment and placing it into her bag, which indicates an intent to conceal unpaid merchandise. This behavior aligns with the 'conceal_unpaid' label as she actively hides the item from view.","latency_ms":1893.5,"agreement_hint":"keep_ok","center_ts":810.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__7&file=kf_00_809.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__7&file=kf_01_810.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__7&file=kf_02_810.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__7&file=kf_03_811.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The person is seen browsing and handling clothing on racks without any visible concealment into a bag, pocket, or clothing. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1384.0},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across the sequence of frames, the customer is observed interacting with clothing items near the rack, moving toward her patterned bag, and positioning items in a manner consistent with hiding unpaid merchandise in her bag, which aligns with multi-frame behavior indicating concealment of products.","latency_ms":3572.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#87) is seen repeatedly interacting with clothing items in a manner suggesting concealment: she bends down near the floor, reaches into a lower rack area where items are less visible, and appears to manipulate items while partially obscured by her body and bag. Her posture and actions—especially the repeated bending and reaching into low areas without placing items in a visible cart or basket—align with typical shoplifting behavior of hiding merchandise on the person. The L1 event 'qty_spike' and 'taken_proxy>=2' support this, but the visual evidence of concealment (e.g., hiding items under clothes or in bag) is consistent across frames. No clear checkout or return to shelf is observed.","latency_ms":3232.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen picking up a red garment and placing it into her bag, which indicates an intent to conceal unpaid merchandise. This behavior aligns with the 'conceal_unpaid' label as she actively hides the item from view.","latency_ms":1893.5}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_87__conceal__16","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer is seen placing an item into her bag, which is consistent with concealment behavior. The L1 event 'conceal' further supports this inference, as it indicates a potential attempt to hide unpaid merchandise.","latency_ms":2311.6,"agreement_hint":"keep_ok","center_ts":807.5666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__conceal__16&file=kf_00_806.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__conceal__16&file=kf_01_807.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__conceal__16&file=kf_02_807.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__conceal__16&file=kf_03_808.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The person is seen moving through the store and placing an item into a bag/pocket area at the hip, consistent with concealment behavior across multiple frames.","latency_ms":1467.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Multi-frame visual evidence shows the customer moving an item toward her hip pocket (consistent with the L1 conceal event subtype of pocket), with trajectory and model score supporting hiding an unpaid product on her person rather than normal shopping actions.","latency_ms":3366.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (1.0) and high model score (0.85), indicates the person likely concealed an item in their pocket or waist area. The person's posture and movement near the clothing racks, along with the absence of the item in visible hands or cart, support concealment intent rather than browsing or checkout. No payment is observed, and the risk score is low but not zero, suggesting the act may be subtle but still identifiable as concealment.","latency_ms":2807.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item into her bag, which is consistent with concealment behavior. The L1 event 'conceal' further supports this inference, as it indicates a potential attempt to hide unpaid merchandise.","latency_ms":2311.6}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_87__qty_spike__17","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen picking up a red garment and placing it into their bag, which indicates an intent to conceal unpaid merchandise. This behavior aligns with shoplifting intent across multiple frames.","latency_ms":1757.9,"agreement_hint":"keep_ok","center_ts":810.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__qty_spike__17&file=kf_00_809.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__qty_spike__17&file=kf_01_810.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__qty_spike__17&file=kf_02_810.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__qty_spike__17&file=kf_03_811.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The person is seen browsing and handling clothing on racks without any visible concealment into a bag, pocket, or clothing. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1491.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across the sequence of frames, the customer is observed taking a red garment from the clothing rack and moving it toward her large patterned bag, consistent with hiding an unpaid product in her bag. The L1 qty_spike event aligns with the multi-frame action of taking an item to conceal it, matching the visual evidence of hiding merchandise.","latency_ms":3449.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#87) is seen repeatedly interacting with merchandise in a way that suggests concealment: she bends down near the floor, reaches into a low clothing rack, and appears to retrieve items without placing them in a visible basket or cart. Her body posture and hand movements—particularly reaching under or behind racks while keeping her back partially turned—indicate an intent to hide items on her person (e.g., in her bag or clothing). The L1 event 'qty_spike' with 'taken_proxy>=2' and 'take_burst>=2/25s' supports rapid, repeated handling of items, consistent with shoplifting behavior rather than normal browsing. No payment or checkout is observed, and no items are visibly placed in a cart. This aligns with 'conceal_unpaid' as defined: hiding items on the body via multi-frame behavior.","latency_ms":5520.3},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen picking up a red garment and placing it into their bag, which indicates an intent to conceal unpaid merchandise. This behavior aligns with shoplifting intent across multiple frames.","latency_ms":1757.9}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_8__conceal__2","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen making a deliberate motion to conceal an item into their pocket, consistent with shoplifting behavior. The L1 event 'conceal' further supports this inference.","latency_ms":2068.8,"agreement_hint":"keep_ok","center_ts":25.966666666666665,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__conceal__2&file=kf_00_24.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__conceal__2&file=kf_01_25.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__conceal__2&file=kf_02_26.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__conceal__2&file=kf_03_27.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a conceal action at the hip/pocket with a high model score, and the keyframes show the person in the act of handling merchandise near their body in a manner consistent with concealment. While the visual evidence is not perfectly clear, the combination of the L1 event and the observed behavior supports a concealment determination.","latency_ms":1217.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#8) is observed over multiple frames moving an item toward their hip pocket, consistent with the L1 conceal event subtype of pocket concealment, showing multi-frame behavior of hiding an unpaid item on their person.","latency_ms":3069.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view) and high model score (0.85), strongly indicates the person is concealing an item in their pocket or clothing. The multi-frame behavior shows the person holding items while moving toward the hip area, consistent with hiding merchandise without payment. This aligns with the definition of 'conceal_unpaid' — hiding a product on the body — not just browsing.","latency_ms":3059.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen making a deliberate motion to conceal an item into their pocket, consistent with shoplifting behavior. The L1 event 'conceal' further supports this inference.","latency_ms":2068.8}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting041_x264__C_10__conceal__2","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event 'conceal' with subtype 'under_clothes' and the visual evidence of a person placing an item under their clothing strongly indicate intent to steal by concealing unpaid merchandise.","latency_ms":2046.4,"agreement_hint":"keep_ok","center_ts":100.36666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_10__conceal__2&file=kf_00_99.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_10__conceal__2&file=kf_01_100.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_10__conceal__2&file=kf_02_100.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_10__conceal__2&file=kf_03_101.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.4,"agreement_hint":"uncertain","rationale":"The L1 event suggests concealment under clothes, but the keyframes show only people standing and browsing; no clear visual evidence of hiding merchandise on the body is visible across the frames.","latency_ms":1360.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a conceal event under clothes, with model score 0.85 and subtype 'under_clothes'; visual evidence across frames shows the individual in the pink outfit adjusting their upper body/scarf area consistent with hiding an item under clothing, matching the concealment behavior.","latency_ms":2897.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high trajectory score (0.59) + dwell ratio (0.83) indicates sustained, suspicious behavior near the body. The person (C#10, P#10) is standing at the counter while holding an item up near their head/shoulder area for multiple frames — a posture consistent with hiding an item under clothing or in a bag not visible to camera. No payment occurs, and no clear return to shelf or cart is observed. This matches the definition of 'conceal_unpaid' where concealment into clothing is inferred from multi-frame behavior and context, despite lack of direct visual proof of the item being hidden.","latency_ms":3515.4},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and the visual evidence of a person placing an item under their clothing strongly indicate intent to steal by concealing unpaid merchandise.","latency_ms":2046.4}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting041_x264__C_3__conceal__1","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer is seen reaching up to a high shelf and appears to be placing an item into her pocket or bag, consistent with concealment behavior. This action aligns with the L1 event 'conceal' and suggests intent to shoplift.","latency_ms":2691.1,"agreement_hint":"keep_ok","center_ts":24.766666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_3__conceal__1&file=kf_00_23.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_3__conceal__1&file=kf_01_24.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_3__conceal__1&file=kf_02_25.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_3__conceal__1&file=kf_03_25.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show a person in a pink outfit with a white bag near the hip area, consistent with hiding merchandise. While the visual evidence is not perfectly clear, the multi-frame behavior and L1 hint support concealment.","latency_ms":1554.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#3) is observed moving an item toward their hip pocket across sequential frames, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior indicating hiding an unpaid product rather than normal shopping actions.","latency_ms":2842.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (product vanishes from view after interaction) and high model score (0.85), strongly indicates the person concealed an item in their pocket or clothing. The multi-frame behavior shows the individual interacting with shelves, then moving away with no visible payment, supporting concealment intent. No clear checkout or return to shelf is observed.","latency_ms":2451.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen reaching up to a high shelf and appears to be placing an item into her pocket or bag, consistent with concealment behavior. This action aligns with the L1 event 'conceal' and suggests intent to shoplift.","latency_ms":2691.1}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting041_x264__C_7__1","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual in the maroon shirt is seen placing an item into their bag, which is a clear act of concealment. This behavior aligns with shoplifting intent as the item is not visibly placed into a shopping cart or basket for checkout.","latency_ms":2273.1,"agreement_hint":"keep_ok","center_ts":173.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__1&file=kf_00_172.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__1&file=kf_01_173.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__1&file=kf_02_173.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__1&file=kf_03_174.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a person holding a white bag and standing near a counter with items, but there is no clear visual evidence of concealing unpaid merchandise into a bag, pocket, or clothing. The behavior appears consistent with normal shopping or carrying a personal bag.","latency_ms":1434.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the maroon top is seen moving items toward a white bag across consecutive frames, with actions consistent with hiding unpaid merchandise in the bag, matching the definition of concealment of unpaid items.","latency_ms":2300.3},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#7) is seen holding a white bag and then appears to place an item into it while standing near the counter. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, and the behavior of placing something into the bag without proceeding to checkout indicates concealment intent. The person’s posture and movement toward the bag, combined with the context of being near the counter but not paying, support shoplifting intent. No clear payment or return action is observed.","latency_ms":2280.3},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the maroon shirt is seen placing an item into their bag, which is a clear act of concealment. This behavior aligns with shoplifting intent as the item is not visibly placed into a shopping cart or basket for checkout.","latency_ms":2273.1}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting041_x264__C_7__qty_spike__5","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual in the maroon top is seen placing an item into their bag, which is a clear act of concealment. This behavior aligns with shoplifting intent as they attempt to hide unpaid merchandise.","latency_ms":1617.9,"agreement_hint":"keep_ok","center_ts":173.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__qty_spike__5&file=kf_00_172.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__qty_spike__5&file=kf_01_173.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__qty_spike__5&file=kf_02_173.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__qty_spike__5&file=kf_03_174.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a person holding a white bag and interacting with merchandise at a counter, but there is no clear visual evidence of concealing unpaid items into pockets, clothing, or a personal bag. The behavior appears consistent with normal shopping or browsing.","latency_ms":1362.8},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the individual in the maroon top is seen moving items toward their white bag, with actions consistent with hiding unpaid merchandise into the bag rather than normal shopping activity. The L1 qty_spike event aligns with this observed behavior of transferring items to a bag without visible checkout activity.","latency_ms":3093.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#7) is seen holding a white bag and repeatedly reaching toward the counter area while another person stands nearby. The L1 event 'qty_spike' with 'taken_proxy>=2' suggests multiple items were taken, and the behavior of lingering near the counter without placing items in a cart or proceeding to checkout indicates intent to conceal unpaid merchandise. The white bag appears to be used for hiding items, consistent with concealment behavior across frames.","latency_ms":3008.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the maroon top is seen placing an item into their bag, which is a clear act of concealment. This behavior aligns with shoplifting intent as they attempt to hide unpaid merchandise.","latency_ms":1617.9}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"zenodo_theft__main303_Trim1__C_1__0","clip_id":"zenodo_theft__main303_Trim1","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen placing an item into their backpack while walking through the aisle, which indicates an intent to conceal unpaid merchandise. This behavior aligns with shoplifting intent.","latency_ms":2044.7,"agreement_hint":"keep_ok","center_ts":3.566666666666667,"corpus":"zenodo","media_url":null,"playable":false,"keyframe_urls":["/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__0&file=kf_00_2.43s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__0&file=kf_01_3.20s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__0&file=kf_02_3.93s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__0&file=kf_03_3.93s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.6,"agreement_hint":"uncertain","rationale":"The frames show a man walking down an aisle holding a black bag, but there is no clear visual evidence of him placing unpaid merchandise into the bag or concealing items on his person. The L1 qty_spike event is a soft hint and not sufficient without matching visual concealment evidence.","latency_ms":918.1},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the individual is seen adjusting a large black bag against their torso, then lifting it to their shoulder in a manner consistent with concealing unpaid merchandise within the bag, with no visible payment activity to indicate normal checkout. The L1 qty_spike event aligns with the behavior of taking items to conceal, matching multi-frame hiding intent.","latency_ms":3483.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is holding a black bag and repeatedly brings his hand to the front of his torso (e.g., frame 1 and 2), consistent with placing an item inside the bag or under his shirt. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, but more importantly, the multi-frame behavior—specifically the repeated hand-to-bag/torso motion while walking through the aisle—indicates concealment intent rather than normal shopping. No items are seen placed in a cart or basket; instead, the bag is carried openly but used for hiding. This matches the definition of 'conceal_unpaid': putting a product into a bag/pocket/under clothes, inferred from overall multi-frame behavior.","latency_ms":3735.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their backpack while walking through the aisle, which indicates an intent to conceal unpaid merchandise. This behavior aligns with shoplifting intent.","latency_ms":2044.7}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"zenodo_theft__main303_Trim1__C_1__conceal__0","clip_id":"zenodo_theft__main303_Trim1","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen walking through the aisle while adjusting a backpack, which aligns with the L1 event 'conceal' indicating potential concealment of unpaid merchandise. The behavior suggests an intent to hide items on their person.","latency_ms":2615.3,"agreement_hint":"keep_ok","center_ts":1.5666666666666667,"corpus":"zenodo","media_url":null,"playable":false,"keyframe_urls":["/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__conceal__0&file=kf_00_0.43s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__conceal__0&file=kf_01_1.20s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__conceal__0&file=kf_02_1.93s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__conceal__0&file=kf_03_2.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The sequence of frames shows the person holding a black backpack open in front of their torso while manipulating an item near the bag's opening, consistent with concealing merchandise. The L1 event subtype 'under_clothes' and model score support this, and the multi-frame behavior indicates hiding intent rather than normal browsing.","latency_ms":1689.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the individual adjusts a large black bag while in the snack aisle, with L1 event data indicating concealment under clothes (consistent with hiding unpaid merchandise). The multi-frame behavior shows intentional manipulation of the bag to hide items, matching the conceal_unpaid label criteria.","latency_ms":3569.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) is supported by visual evidence: the person repeatedly reaches toward the right side of their body while holding a large black bag, then later walks forward with the bag held close to their torso—consistent with hiding an item under clothing or in the bag. The trajectory analysis shows co-disappear (1.0) and dwell ratio 1.0, indicating sustained focus on concealment behavior. No visible payment or return actions occur; no items are placed in cart or basket. This aligns with 'conceal_unpaid' per rules: multi-frame intent to hide unpaid merchandise, not just browsing.","latency_ms":3224.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen walking through the aisle while adjusting a backpack, which aligns with the L1 event 'conceal' indicating potential concealment of unpaid merchandise. The behavior suggests an intent to hide items on their person.","latency_ms":2615.3}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"zenodo_theft__main303_Trim1__C_1__qty_spike__1","clip_id":"zenodo_theft__main303_Trim1","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen placing an item into their backpack while walking through the aisle, which indicates an intent to conceal unpaid merchandise. This behavior aligns with the 'conceal_unpaid' label as it shows a clear action of hiding an item on their person.","latency_ms":8476.4,"agreement_hint":"keep_ok","center_ts":3.566666666666667,"corpus":"zenodo","media_url":null,"playable":false,"keyframe_urls":["/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__qty_spike__1&file=kf_00_2.43s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__qty_spike__1&file=kf_01_3.20s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__qty_spike__1&file=kf_02_3.93s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__qty_spike__1&file=kf_03_3.93s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.6,"agreement_hint":"uncertain","rationale":"The frames show a man walking down an aisle holding a black bag, but there is no visible merchandise being concealed into the bag, pockets, or clothing. The L1 qty_spike event is a soft hint only and lacks matching visual evidence of concealment.","latency_ms":1410.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual is seen placing a black bag under their shirt (concealing it against their torso) and then securing it over their shoulder, consistent with hiding an unpaid item on their person across sequential frames. The L1 qty_spike event supports the inference of taking items to conceal, matching the visual behavior of hiding a bag under clothing.","latency_ms":2930.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is walking down the aisle with a black bag slung over his shoulder, and in the first frame, he is seen adjusting or pressing his hand against the front of the bag near his chest—consistent with placing or securing an item inside. His posture and hand motion suggest concealment rather than casual carrying. The L1 event 'qty_spike' (with taken_proxy=2) supports multiple items being taken, and combined with the visual of him holding the bag close to his body while walking away from shelves, this indicates intent to hide unpaid merchandise. No items are seen being placed in a cart or returned to shelves; instead, the bag’s position and his actions align with concealment.","latency_ms":3344.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their backpack while walking through the aisle, which indicates an intent to conceal unpaid merchandise. This behavior aligns with the 'conceal_unpaid' label as it shows a clear action of hiding an item on their person.","latency_ms":8476.4}]}],"keep_ok_unique":[{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"dcsass__demo_dcsass_03__C_2__conceal__0","clip_id":"dcsass__demo_dcsass_03","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen making a deliberate motion consistent with concealing an item into their pocket or clothing, as indicated by the L1 event 'conceal' and supported by the visual evidence of their hand positioning near their hip area.","latency_ms":2629.2,"agreement_hint":"keep_ok","center_ts":1.9666666666666666,"corpus":"demo","media_url":"/api/media/sample/demo_dcsass_03.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=dcsass__demo_dcsass_03__C_2__conceal__0&file=kf_00_0.83s.jpg","/api/path1_case_keyframe?case_id=dcsass__demo_dcsass_03__C_2__conceal__0&file=kf_01_1.60s.jpg","/api/path1_case_keyframe?case_id=dcsass__demo_dcsass_03__C_2__conceal__0&file=kf_02_2.33s.jpg","/api/path1_case_keyframe?case_id=dcsass__demo_dcsass_03__C_2__conceal__0&file=kf_03_2.97s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The L1 event suggests a concealment into a pocket at the hip, but the provided keyframes are too blurry and low-resolution to visually confirm any item being hidden. The person in the blue cap is seen handling something near their chest/waist, but without clear visual evidence of the item or the concealment action, a definitive label cannot be assigned.","latency_ms":1409.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Multi-frame visual evidence shows a customer (person P#2) moving an item toward their hip pocket, consistent with the L1 conceal event subtype of pocket concealment, indicating hiding an unpaid product on their body.","latency_ms":2886.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with the trajectory evidence showing co-disappearance (item vanishes from view after approach) and high dwell ratio (0.833), strongly suggests the person is concealing an item in their pocket or clothing. The person's hand movements near the hip area across multiple frames (13:09:17–13:09:19) are consistent with hiding merchandise, and the risk score, though low, aligns with this behavior. No visual of payment or return to shelf occurs, and the action is not typical browsing.","latency_ms":3145.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen making a deliberate motion consistent with concealing an item into their pocket or clothing, as indicated by the L1 event 'conceal' and supported by the visual evidence of their hand positioning near their hip area.","latency_ms":2629.2}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting012_x264__C_14__conceal__7","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual in the foreground is seen placing an item into their pocket, consistent with concealment behavior. The L1 event 'conceal' further supports this inference, as it aligns with the visual evidence of hiding unpaid merchandise.","latency_ms":1749.9,"agreement_hint":"keep_ok","center_ts":562.7666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_14__conceal__7&file=kf_00_561.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_14__conceal__7&file=kf_01_562.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_14__conceal__7&file=kf_02_563.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_14__conceal__7&file=kf_03_563.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show the person in a position consistent with hiding merchandise near the waist area while browsing the display.","latency_ms":1548.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.85,"agreement_hint":"miss_pos","rationale":"The person in the white shirt is handling and examining fabric products on the store table, which is normal shopping behavior consistent with browsing merchandise, with no visual evidence of concealing unpaid items into a bag, pocket, or under clothes. The L1 conceal event is a soft hint that is not supported by clear visual evidence of hiding merchandise.","latency_ms":3134.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (1.0) and high dwell ratio (0.833), indicates the customer likely concealed an item in their pocket or waist area. The person’s posture—bending slightly, hand near hip/low torso—and the absence of visible payment or cart placement across multiple frames support concealment intent rather than browsing or checkout. No clear visual of the item being hidden is seen in these frames, but the multi-frame behavioral pattern and L1 metadata strongly suggest unpaid concealment.","latency_ms":3048.4},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the foreground is seen placing an item into their pocket, consistent with concealment behavior. The L1 event 'conceal' further supports this inference, as it aligns with the visual evidence of hiding unpaid merchandise.","latency_ms":1749.9}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting012_x264__C_20__conceal__4","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen placing a large, patterned fabric item into their bag or pocket area near the checkout counter, consistent with concealment behavior. The surrounding context of other shoppers and staff does not contradict this intent.","latency_ms":2191.8,"agreement_hint":"keep_ok","center_ts":417.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_20__conceal__4&file=kf_00_416.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_20__conceal__4&file=kf_01_416.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_20__conceal__4&file=kf_02_417.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_20__conceal__4&file=kf_03_418.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a model score of 0.85, and the keyframes show the person in an orange top interacting with merchandise at a display table. While the exact concealment is not perfectly clear in the low-resolution frames, the multi-frame behavior and L1 evidence suggest the person is hiding unpaid merchandise on their body.","latency_ms":1494.8},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the yellow top interacts with merchandise across multiple frames, with L1 event indicating concealment in a hip pocket; multi-frame behavior shows handling of goods consistent with hiding unpaid items, matching the conceal_unpaid criteria.","latency_ms":3008.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after interaction) and high model score (0.85), strongly indicates the person is concealing merchandise in their pocket or clothing. The multi-frame behavior shows them handling fabric items near the counter, then moving with a posture suggesting hidden placement—consistent with shoplifting intent. No payment or visible return to shelf occurs.","latency_ms":2698.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing a large, patterned fabric item into their bag or pocket area near the checkout counter, consistent with concealment behavior. The surrounding context of other shoppers and staff does not contradict this intent.","latency_ms":2191.8}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting012_x264__C_21__conceal__6","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event indicates a concealment event in the hip pocket zone, with supporting trajectory evidence, and multi-frame behavior aligns with hiding an unpaid item on the person’s body, matching the conceal_unpaid label criteria.","latency_ms":3062.4,"agreement_hint":"keep_ok","center_ts":489.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_21__conceal__6&file=kf_00_488.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_21__conceal__6&file=kf_01_488.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_21__conceal__6&file=kf_02_489.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_21__conceal__6&file=kf_03_490.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the yellow and black top is seen handling merchandise at the table and then moving her hands toward her hip/pocket area, consistent with the L1 conceal event (subtype pocket, zone hip). The multi-frame sequence shows her interacting with items and then concealing them on her body rather than carrying them visibly or placing them in a cart.","latency_ms":1443.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment event in the hip pocket zone, with supporting trajectory evidence, and multi-frame behavior aligns with hiding an unpaid item on the person’s body, matching the conceal_unpaid label criteria.","latency_ms":3062.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappearance (item vanishes from view after interaction) and high model score (0.85), strongly suggests the person is concealing an item in their pocket or clothing. The multi-frame behavior shows the individual standing near a large fabric display, interacting closely with it, and maintaining a posture consistent with hiding something at the hip. No payment or visible placement into a cart occurs; no clear return to shelf. This aligns with 'conceal_unpaid' per rules: concealment into pocket/clothes inferred across frames, not just a single grab.","latency_ms":3355.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is examining a large piece of fabric on a table, which is consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or under clothing, and the actions across the frames suggest she is inspecting the item rather than attempting to steal it.","latency_ms":2522.6}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting012_x264__C_3__conceal__1","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The customer is observed manipulating a large golden fabric item, tucking it under their clothing (consistent with the L1 event subtype 'under_clothes') across consecutive frames, showing clear intent to conceal an unpaid product rather than normal shopping activity.","latency_ms":3036.2,"agreement_hint":"keep_ok","center_ts":174.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_3__conceal__1&file=kf_00_173.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_3__conceal__1&file=kf_01_174.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_3__conceal__1&file=kf_02_174.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_3__conceal__1&file=kf_03_175.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the yellow top is seen handling merchandise at the display table and then making movements consistent with tucking or hiding an item under their clothing, matching the L1 conceal event subtype 'under_clothes'.","latency_ms":1282.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer is observed manipulating a large golden fabric item, tucking it under their clothing (consistent with the L1 event subtype 'under_clothes') across consecutive frames, showing clear intent to conceal an unpaid product rather than normal shopping activity.","latency_ms":3036.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 1.0) indicates the person likely concealed an item under their clothes. The person is standing near the counter with a large fabric item being handled by another person, but the keyframe sequence shows no visible payment or return to shelf; instead, the concealment pattern aligns with shoplifting intent. No clear visual of the item being hidden in this specific frame set, but the L1 context strongly supports concealment intent across frames.","latency_ms":3073.4},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is standing at a checkout counter with a large item spread out on the counter, appearing to be in the process of paying or completing a transaction. There is no evidence of concealment or hiding of merchandise.","latency_ms":2250.0}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting012_x264__C_5__conceal__0","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Across sequential frames, the person in the white shirt moves a yellow product from the counter and conceals it under their clothing (pants/waist area), matching the L1 conceal event subtype of under_clothes, with multi-frame behavior showing the product being hidden rather than normal shopping or checkout.","latency_ms":3269.6,"agreement_hint":"keep_ok","center_ts":101.96666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_5__conceal__0&file=kf_00_100.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_5__conceal__0&file=kf_01_101.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_5__conceal__0&file=kf_02_102.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_5__conceal__0&file=kf_03_103.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the yellow top is seen seated and repeatedly interacting with an item near their lap/waist area, with the L1 event indicating concealment under clothes. Across the frames, the item is no longer visible on the table or in hand, suggesting it was hidden on the body.","latency_ms":1400.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the person in the white shirt moves a yellow product from the counter and conceals it under their clothing (pants/waist area), matching the L1 conceal event subtype of under_clothes, with multi-frame behavior showing the product being hidden rather than normal shopping or checkout.","latency_ms":3269.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'under_clothes', and the visual sequence shows the customer (C#5, P#5) sitting at the counter while the staff member is distracted; the customer's hand is near their waist/hip area where a yellow item (likely the concealed product) is later seen in the staff member's hand. The trajectory evidence indicates 'below_threshold' and 'co_disappear', consistent with hiding an item under clothes. No payment occurs, and the item is not placed in a visible cart or basket. This meets the criteria for 'conceal_unpaid' as it involves hiding merchandise on the body without intent to pay.","latency_ms":4061.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is seated at a table in what appears to be a restaurant or dining area, interacting with another person who seems to be an employee or server. There is no evidence of concealment, hiding, or shoplifting intent. The behavior is consistent with normal dining and checkout activities.","latency_ms":2111.1}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting012_x264__C_6__conceal__2","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The customer (C#6) is observed over multiple frames moving an item toward their hip pocket, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior showing the item being hidden in their clothing pocket.","latency_ms":3468.0,"agreement_hint":"keep_ok","center_ts":199.16666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_6__conceal__2&file=kf_00_198.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_6__conceal__2&file=kf_01_198.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_6__conceal__2&file=kf_02_199.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_6__conceal__2&file=kf_03_200.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the yellow top is seen handling merchandise at the display table and then moving their hands toward their hip/pocket area in a manner consistent with concealing an item, matching the L1 conceal event with pocket/hip subtype.","latency_ms":1571.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer (C#6) is observed over multiple frames moving an item toward their hip pocket, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior showing the item being hidden in their clothing pocket.","latency_ms":3468.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after interaction) and high model score (0.85), strongly indicates the customer is concealing an item in their pocket or clothing. The person's posture and hand movements near the hip area across frames support this, especially since they are not placing the item in a visible cart or basket. No payment is observed, and the context suggests intent to steal rather than browse.","latency_ms":3213.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is standing at a checkout counter with merchandise laid out on the table, appearing to be in the process of paying or completing a transaction. There is no visible concealment of items into bags, pockets, or under clothing, and the behavior aligns with normal checkout procedures.","latency_ms":2099.4}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting012_x264__C_16__conceal__5","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 event indicates a conceal event under clothes, with model score 0.85, and multi-frame behavior aligns with hiding merchandise on the person's body, matching the conceal_unpaid label criteria.","latency_ms":2964.0,"agreement_hint":"keep_ok","center_ts":441.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_16__conceal__5&file=kf_00_440.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_16__conceal__5&file=kf_01_440.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_16__conceal__5&file=kf_02_441.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_16__conceal__5&file=kf_03_442.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.4,"agreement_hint":"uncertain","rationale":"The keyframes show a person seated at a counter handling fabric and interacting with another person, but no clear concealment into a bag, pocket, or under clothes is visible across the frames. The L1 conceal hint is not corroborated by obvious visual evidence in these images.","latency_ms":1179.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a conceal event under clothes, with model score 0.85, and multi-frame behavior aligns with hiding merchandise on the person's body, matching the conceal_unpaid label criteria.","latency_ms":2964.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 0.833) indicates the person likely concealed an item under their clothes. The person is seated at a table with fabrics, and their posture and arm movement suggest hiding something—consistent with concealment intent. No payment or visible return to shelf occurs; no clear checkout action. This matches 'conceal_unpaid' per rules: multi-frame hiding behavior, not just browsing.","latency_ms":3244.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is engaged in a transaction at the checkout counter, handling items on the table and interacting with the cashier. There is no evidence of concealment or hiding of merchandise.","latency_ms":1807.7}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting012_x264__C_34__conceal__8","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer is seen placing an item into their pocket (as indicated by the L1 event 'conceal' and visual evidence of hand movement toward the hip area), which constitutes hiding unpaid merchandise on their body.","latency_ms":2347.1,"agreement_hint":"keep_ok","center_ts":659.9666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_34__conceal__8&file=kf_00_658.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_34__conceal__8&file=kf_01_659.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_34__conceal__8&file=kf_02_660.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_34__conceal__8&file=kf_03_661.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The L1 event suggests a concealment into a pocket at the hip, but the provided keyframes do not clearly show a person concealing unpaid merchandise. The frames show a shop setting with people browsing and a person seated, but no visible act of hiding an item into clothing or a bag is evident. Without clear visual confirmation of concealment, the label is uncertain.","latency_ms":1560.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The male individual in the white shirt is observed moving his hand toward his hip pocket (consistent with the L1 event's subtype of pocket concealment) across sequential frames, with multi-frame behavior indicating an action to hide an unpaid item in his clothing pocket, matching the conceal_unpaid definition.","latency_ms":3128.7},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (1.0) and dwell ratio 1.0 across 4 frames, indicates the person likely concealed an item in their pocket or waist area. The person is seated near a table with merchandise, and the timing and behavior align with hiding an item without payment. No visual of the actual concealment is seen, but the multi-frame pattern and high model score (0.85) support this inference.","latency_ms":2752.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item into their pocket (as indicated by the L1 event 'conceal' and visual evidence of hand movement toward the hip area), which constitutes hiding unpaid merchandise on their body.","latency_ms":2347.1}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting012_x264__C_9__conceal__3","clip_id":"ucf_theft__Shoplifting012_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The L1 conceal event with subtype 'pocket' (hip zone) aligns with multi-frame visual context of the individual's actions, showing behavior consistent with hiding an unpaid item on their person, matching the conceal_unpaid label criteria.","latency_ms":2285.2,"agreement_hint":"keep_ok","center_ts":232.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting012_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_9__conceal__3&file=kf_00_231.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_9__conceal__3&file=kf_01_232.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_9__conceal__3&file=kf_02_232.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting012_x264__C_9__conceal__3&file=kf_03_233.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The keyframes show a person in a yellow top seated at a counter with another person standing nearby, appearing to handle items on the counter. No clear concealment into a bag, pocket, or clothing is visible across the frames, and the L1 conceal event is not corroborated by obvious visual evidence.","latency_ms":1216.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 conceal event with subtype 'pocket' (hip zone) aligns with multi-frame visual context of the individual's actions, showing behavior consistent with hiding an unpaid item on their person, matching the conceal_unpaid label criteria.","latency_ms":2285.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after interaction) and high model score (0.85), strongly indicates the person is concealing an item in their pocket or clothing. The multi-frame behavior shows them leaning over the table, interacting with items, then a clear disappearance of the item from visible space—consistent with concealment rather than browsing or checkout. No payment or return to shelf is observed.","latency_ms":2880.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The individual is seated at a counter, interacting with a salesperson who appears to be processing a transaction. There are no visible signs of concealment or hiding of merchandise, and the behavior aligns with a normal checkout process.","latency_ms":2280.8}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting014_x264__C_1__conceal__1","clip_id":"ucf_theft__Shoplifting014_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen placing an item into their pocket or waistband area, which is consistent with concealment behavior. This action, combined with the L1 event 'conceal' and the visual evidence of the item being hidden on the body, strongly suggests intent to steal unpaid merchandise.","latency_ms":1722.4,"agreement_hint":"keep_ok","center_ts":754.7666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting014_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_1__conceal__1&file=kf_00_753.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_1__conceal__1&file=kf_01_754.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_1__conceal__1&file=kf_02_755.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_1__conceal__1&file=kf_03_755.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the orange outfit is seen moving through the store and appears to be concealing an item under her clothing or in a bag, consistent with the L1 conceal event indicating a pocket/hip concealment.","latency_ms":1336.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the patterned top and red pants is observed moving an item from the shelf area toward their hip pocket across consecutive frames, matching the L1 conceal event subtype of pocket concealment, with visual evidence of hiding an unpaid product on their person.","latency_ms":2729.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' and zone 'hip', and the visual sequence shows the person (in red/orange attire) turning away from the shelf, bringing their hands toward their hip area while holding a dark item, consistent with pocketing or concealing merchandise under clothing. The multi-frame behavior supports concealment intent rather than browsing or checkout. No payment is observed, and the risk score, though low, aligns with the visual evidence of hiding an item on the body.","latency_ms":2899.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their pocket or waistband area, which is consistent with concealment behavior. This action, combined with the L1 event 'conceal' and the visual evidence of the item being hidden on the body, strongly suggests intent to steal unpaid merchandise.","latency_ms":1722.4}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting014_x264__C_4__conceal__0","clip_id":"ucf_theft__Shoplifting014_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen placing an item under their clothing, which is consistent with concealment behavior. The L1 event 'conceal' further supports this inference.","latency_ms":2596.6,"agreement_hint":"keep_ok","center_ts":87.96666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting014_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_4__conceal__0&file=kf_00_86.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_4__conceal__0&file=kf_01_87.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_4__conceal__0&file=kf_02_88.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_4__conceal__0&file=kf_03_89.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The person in red is seen handling merchandise near a rack and then turning away while adjusting her clothing, consistent with concealing an item under her clothes. The L1 event 'conceal' with subtype 'under_clothes' and high model score supports this, and the multi-frame sequence shows a clear hiding action rather than normal browsing.","latency_ms":1563.0},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer interacts with clothing on a rack, and multi-frame behavior shows an action consistent with hiding an item under her clothing (matching the L1 conceal event subtype of under_clothes), with no visible payment action or return to shelf for the item, indicating concealment of unpaid merchandise.","latency_ms":3259.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 0.6667) indicates the person likely concealed an item under clothing. In the frames, the person is seen adjusting her headscarf/face area while holding a garment, which aligns with hiding an item under clothes — a classic shoplifting tactic. No payment or return to shelf is observed, and the behavior is inconsistent with normal browsing.","latency_ms":2715.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item under their clothing, which is consistent with concealment behavior. The L1 event 'conceal' further supports this inference.","latency_ms":2596.6}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting014_x264__C_77__conceal__2","clip_id":"ucf_theft__Shoplifting014_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen placing an item into their pocket, which is consistent with concealment behavior. The L1 event 'conceal' further supports this inference.","latency_ms":1917.0,"agreement_hint":"keep_ok","center_ts":1947.9666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting014_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_77__conceal__2&file=kf_00_1946.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_77__conceal__2&file=kf_01_1947.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_77__conceal__2&file=kf_02_1948.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting014_x264__C_77__conceal__2&file=kf_03_1949.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person is seen holding a dark item and moving it toward her hip/pocket area while turning away from the camera, consistent with the L1 conceal event indicating a pocket concealment at the hip. The multi-frame sequence shows the item disappearing from view near her body, suggesting unpaid concealment rather than normal browsing.","latency_ms":1657.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Multi-frame visual evidence shows the customer moving an item toward their hip pocket (consistent with the L1 conceal event subtype of pocket), hiding the item from view as part of a shoplifting-related concealment action.","latency_ms":2608.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with the trajectory evidence showing co-disappearance (item vanishes from visible hand into hip area) and high dwell ratio (0.8), strongly indicates concealment. The person’s posture and movement—reaching toward the hip while holding an item in the other hand, then turning away without placing it in a cart or basket—supports intent to hide unpaid merchandise. No payment or checkout is observed.","latency_ms":2693.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their pocket, which is consistent with concealment behavior. The L1 event 'conceal' further supports this inference.","latency_ms":1917.0}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting030_x264__C_1__conceal__1","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer is seen placing an item into their pocket, which is a clear act of concealment. This behavior aligns with the 'conceal' event type and indicates an intent to steal unpaid merchandise.","latency_ms":1637.5,"agreement_hint":"keep_ok","center_ts":92.76666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__conceal__1&file=kf_00_91.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__conceal__1&file=kf_01_92.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__conceal__1&file=kf_02_93.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__conceal__1&file=kf_03_93.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show a person in the foreground with a bag and hand near the hip area, consistent with hiding merchandise. While the visual evidence is not perfectly clear, the combination of the L1 conceal event and the observed posture supports concealment of unpaid merchandise.","latency_ms":1447.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#1) is observed moving an item toward their hip pocket across sequential frames, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior indicating hiding an unpaid product rather than normal shopping activity.","latency_ms":3199.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view) and high model score (0.85), strongly indicates the person is concealing an item in their pocket or clothing. The multi-frame behavior shows them standing near the counter while making a motion consistent with hiding an item, and no payment is observed. This aligns with 'conceal_unpaid' per rules: concealment into body/pocket is confirmed by both visual context and L1 metadata.","latency_ms":3152.2},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item into their pocket, which is a clear act of concealment. This behavior aligns with the 'conceal' event type and indicates an intent to steal unpaid merchandise.","latency_ms":1637.5}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting030_x264__C_20__conceal__6","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen placing an item into their pocket, which is a clear act of concealment. This behavior aligns with the 'conceal_unpaid' label as it indicates an intent to hide merchandise without paying.","latency_ms":1882.9,"agreement_hint":"keep_ok","center_ts":313.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_20__conceal__6&file=kf_00_312.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_20__conceal__6&file=kf_01_313.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_20__conceal__6&file=kf_02_313.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_20__conceal__6&file=kf_03_314.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show a person in a red top and dark pants near a display counter with a hand-to-hip motion consistent with hiding merchandise. While the visual evidence is not perfectly clear, the multi-frame behavior and L1 context support concealment.","latency_ms":1353.1},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the red shirt performs a sequence of actions consistent with concealing an unpaid item: they bend down near the shelf area, then move their hands toward their hip pocket (matching the L1 event's subtype of pocket concealment), with multi-frame behavior showing the action of hiding an item on their person rather than normal browsing or checkout.","latency_ms":2916.7},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly labels 'conceal' with subtype 'pocket' and zone 'hip', and the trajectory evidence shows high dwell ratio (0.833) and co-disappear (1.0), indicating the item was hidden on the person's body. The multi-frame behavior shows the customer in close proximity to a display, then moving away with no visible payment or cart placement, consistent with concealment intent. No checkout or return is observed.","latency_ms":2164.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their pocket, which is a clear act of concealment. This behavior aligns with the 'conceal_unpaid' label as it indicates an intent to hide merchandise without paying.","latency_ms":1882.9}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting030_x264__C_2__conceal__0","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is crouched near the checkout counter, with their hands positioned in a way that suggests they are concealing an item under their clothing or in a hidden location. This behavior aligns with the 'under_clothes' concealment pattern indicated by the L1 event and visual evidence.","latency_ms":2537.9,"agreement_hint":"keep_ok","center_ts":16.766666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_2__conceal__0&file=kf_00_15.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_2__conceal__0&file=kf_01_16.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_2__conceal__0&file=kf_02_17.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_2__conceal__0&file=kf_03_17.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person in the red shirt is seen bending down and interacting with merchandise in a manner consistent with concealing items under clothing or in a bag, as indicated by the L1 event subtype 'under_clothes' and the visual evidence of the person's posture and actions across multiple frames.","latency_ms":1312.8},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the red shirt is holding a product against their torso under their clothing, consistent with multi-frame behavior of concealing an unpaid item, matching the L1 conceal event subtype of under_clothes.","latency_ms":2999.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person (P#2, red top) is crouched near a display counter and appears to be placing an item under their clothing or into a hidden location, consistent with the L1 event 'conceal' and meta subtype 'under_clothes'. The posture, prolonged crouch, and lack of visible payment or return to shelf indicate intent to conceal unpaid merchandise. This matches the definition of 'conceal_unpaid' as hiding items on the body across multiple frames.","latency_ms":2525.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is crouched near the checkout counter, with their hands positioned in a way that suggests they are concealing an item under their clothing or in a hidden location. This behavior aligns with the 'under_clothes' concealment pattern indicated by the L1 event and visual evidence.","latency_ms":2537.9}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting030_x264__C_10__conceal__5","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen placing an item into their backpack, which is a clear act of concealing unpaid merchandise. This behavior aligns with the 'conceal_unpaid' label as it involves hiding an item on their person without proceeding to checkout.","latency_ms":2385.8,"agreement_hint":"keep_ok","center_ts":222.76666666666668,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_10__conceal__5&file=kf_00_221.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_10__conceal__5&file=kf_01_222.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_10__conceal__5&file=kf_02_223.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_10__conceal__5&file=kf_03_223.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.4,"agreement_hint":"uncertain","rationale":"The overhead frames show multiple shoppers near a display counter, but no clear concealment into a pocket, bag, or clothing is visible. The L1 conceal hint is not sufficiently supported by the visuals, so the action cannot be confirmed.","latency_ms":1275.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#10) is observed moving an item toward their hip pocket across sequential frames, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior consistent with hiding an unpaid product.","latency_ms":2425.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (1.0) and high dwell ratio (0.833), indicates the person likely concealed an item in their pocket or waist area. The person’s posture and hand movement near the hip area across multiple frames support this, and the risk score is low but the visual trajectory pattern strongly suggests concealment rather than normal browsing. No payment or return to shelf is observed.","latency_ms":3096.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their backpack, which is a clear act of concealing unpaid merchandise. This behavior aligns with the 'conceal_unpaid' label as it involves hiding an item on their person without proceeding to checkout.","latency_ms":2385.8}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting030_x264__C_11__1","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"steal","vlm_steal":true,"confidence":0.9,"rationale":"The person in the orange shirt is seen concealing an item under their arm while standing near the checkout counter, indicating clear intent to shoplift. This behavior aligns with the 'steal' label as it shows concealment of unpaid merchandise.","latency_ms":2066.3,"agreement_hint":"keep_ok","center_ts":203.16666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__1&file=kf_00_202.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__1&file=kf_01_202.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__1&file=kf_02_203.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__1&file=kf_03_204.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show multiple people in a retail environment, with some individuals holding or examining items near shelves and counters. There is no clear visual evidence of concealing unpaid merchandise into bags, pockets, or clothing across the frames. The L1 event is a soft qty_spike hint without matching visual concealment evidence, so the behavior appears to be normal shopping or browsing.","latency_ms":1452.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the sleeveless patterned top moves an item from the shelf into their brown bag across sequential frames, hiding the product in the bag rather than placing it visibly for checkout or return, matching the definition of concealing unpaid merchandise.","latency_ms":3074.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer in the blue shirt (C#11) is seen reaching toward a shelf, then quickly moving with a sudden motion while holding an item close to their body. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, and the person’s posture—bending slightly, keeping arms close, and moving away from the display without placing the item in a visible cart or basket—indicates concealment intent. No clear checkout or return action is observed, and the behavior deviates from normal browsing. The presence of other customers nearby does not negate the suspicious multi-frame pattern of hiding merchandise.","latency_ms":3507.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"steal","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person in the orange shirt is seen concealing an item under their arm while standing near the checkout counter, indicating clear intent to shoplift. This behavior aligns with the 'steal' label as it shows concealment of unpaid merchandise.","latency_ms":2066.3}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting030_x264__C_11__conceal__2","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.95,"rationale":"The individual is seen bending over and placing an item into their waistband or pocket area, consistent with concealing unpaid merchandise. This behavior aligns with the 'conceal' L1 event and demonstrates clear intent to hide the item from view.","latency_ms":2831.2,"agreement_hint":"keep_ok","center_ts":124.76666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__conceal__2&file=kf_00_123.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__conceal__2&file=kf_01_124.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__conceal__2&file=kf_02_125.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__conceal__2&file=kf_03_125.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The L1 event suggests a concealment into a pocket at the hip, but the provided keyframes are too low-resolution and distant to visually confirm any item being hidden. No clear multi-frame concealment behavior is discernible from the images alone.","latency_ms":1375.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#11) is observed in multi-frame behavior consistent with concealing an unpaid item in their hip pocket, matching the L1 conceal event subtype of pocket concealment, with visual trajectory and item evidence supporting the hiding action across frames.","latency_ms":2473.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view) and high model score (0.85), strongly indicates the person is hiding an item in their pocket or clothing. The multi-frame behavior shows the individual leaning forward and making a motion consistent with concealing an object at the hip, which aligns with the 'conceal_unpaid' label per rules—specifically, concealment into clothing/pocket, not just holding. No payment or visible return to shelf occurs.","latency_ms":2794.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.95,"agreement_hint":"keep_ok","rationale":"The individual is seen bending over and placing an item into their waistband or pocket area, consistent with concealing unpaid merchandise. This behavior aligns with the 'conceal' L1 event and demonstrates clear intent to hide the item from view.","latency_ms":2831.2}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting030_x264__C_11__qty_spike__4","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"steal","vlm_steal":true,"confidence":0.9,"rationale":"The individual in the blue shirt is seen placing an item into their waistband or pocket area, which is consistent with concealment behavior. This action, combined with the proximity to the checkout counter and the presence of other shoppers, strongly suggests an intent to shoplift.","latency_ms":2136.6,"agreement_hint":"keep_ok","center_ts":203.16666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__qty_spike__4&file=kf_00_202.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__qty_spike__4&file=kf_01_202.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__qty_spike__4&file=kf_02_203.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_11__qty_spike__4&file=kf_03_204.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show multiple shoppers in a store, with individuals holding bags and items, but no clear visual evidence of concealing unpaid merchandise into pockets, bags, or clothing. The L1 qty_spike event is a soft hint and not sufficient without matching visual concealment.","latency_ms":1301.1},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the sleeveless patterned top moves their arm from reaching toward merchandise on the shelf to tucking an item into their brown bag across multiple consecutive frames, demonstrating clear concealment of an unpaid product.","latency_ms":2149.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer in the blue shirt (C#11) is seen reaching into a display area and then quickly moving toward their body while holding an item. In the final frame, they appear to be tucking or hiding the item under their clothing or into a bag, consistent with concealment behavior. The L1 event 'qty_spike' and 'taken_proxy>=2' support multiple items being taken, and the multi-frame sequence shows intent to hide rather than return or place in cart. No visible payment occurs, and the action is inconsistent with normal browsing.","latency_ms":2923.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"steal","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the blue shirt is seen placing an item into their waistband or pocket area, which is consistent with concealment behavior. This action, combined with the proximity to the checkout counter and the presence of other shoppers, strongly suggests an intent to shoplift.","latency_ms":2136.6}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting030_x264__C_1__0","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual in the green plaid shirt adjusts their bag in a sequence of frames, with the bag appearing to shift position toward their torso in a way consistent with hiding an unpaid item, paired with the L1 qty_spike event indicating a potential product take.","latency_ms":3069.4,"agreement_hint":"keep_ok","center_ts":158.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__0&file=kf_00_157.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__0&file=kf_01_158.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__0&file=kf_02_158.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__0&file=kf_03_159.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show individuals standing and interacting near a display counter, with no visible concealment of merchandise into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding intent across frames.","latency_ms":1161.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the green plaid shirt adjusts their bag in a sequence of frames, with the bag appearing to shift position toward their torso in a way consistent with hiding an unpaid item, paired with the L1 qty_spike event indicating a potential product take.","latency_ms":3069.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (in the plaid shirt, center-right) is seen bending down and placing an item into a bag or pocket area near their waist/hip while others are distracted. The L1 event 'qty_spike' and 'handheld_peak>=2' suggest multiple items were handled quickly, and the body posture (bending, hiding motion) combined with the context of a retail store strongly indicates concealment of unpaid merchandise. This matches the definition of 'conceal_unpaid' — hiding on the body — not just browsing.","latency_ms":2728.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen holding an item in their hand and appears to be examining or considering it, consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or clothing, and the actions do not indicate shoplifting intent.","latency_ms":2089.1}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting030_x264__C_1__qty_spike__3","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual in the green plaid shirt adjusts their bag in a sequence of frames, with the bag positioned to conceal items, consistent with hiding unpaid merchandise. The L1 qty_spike event provides additional soft context supporting potential concealment, and the multi-frame behavior shows intent to hide items rather than normal browsing.","latency_ms":2861.1,"agreement_hint":"keep_ok","center_ts":158.36666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__qty_spike__3&file=kf_00_157.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__qty_spike__3&file=kf_01_158.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__qty_spike__3&file=kf_02_158.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_1__qty_spike__3&file=kf_03_159.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show multiple people in a retail environment, with some individuals holding or examining items near a display counter. There is no clear visual evidence of a person concealing unpaid merchandise into a bag, pocket, or clothing across the frames. The L1 event is a soft qty_spike hint, but the visuals do not confirm concealment or shoplifting intent.","latency_ms":2239.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the green plaid shirt adjusts their bag in a sequence of frames, with the bag positioned to conceal items, consistent with hiding unpaid merchandise. The L1 qty_spike event provides additional soft context supporting potential concealment, and the multi-frame behavior shows intent to hide items rather than normal browsing.","latency_ms":2861.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (in blue shirt) is seen bending down and reaching toward the floor near their feet while holding a large brown bag. In the context of the L1 event 'qty_spike' and 'handheld_peak>=2', combined with the posture suggesting an attempt to hide or retrieve an item, this behavior strongly indicates concealment of unpaid merchandise. The person’s hand movement near the bag and lower body suggests placing or retrieving an item into the bag without paying. No clear checkout or return action is observed.","latency_ms":2898.2},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen holding and examining a product in their hand, consistent with normal shopping behavior. There is no visible concealment into a bag, pocket, or under clothing, and the actions appear to be part of a typical browsing process.","latency_ms":3339.3}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting030_x264__C_28__conceal__7","clip_id":"ucf_theft__Shoplifting030_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual in the red top is seen placing an item into their pocket, consistent with concealment behavior. This action aligns with the L1 event 'conceal' and indicates intent to hide unpaid merchandise.","latency_ms":2449.6,"agreement_hint":"keep_ok","center_ts":363.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting030_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_28__conceal__7&file=kf_00_362.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_28__conceal__7&file=kf_01_362.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_28__conceal__7&file=kf_02_363.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting030_x264__C_28__conceal__7&file=kf_03_364.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.3,"agreement_hint":"uncertain","rationale":"The keyframes show multiple people in a store, but no clear visual evidence of a person concealing unpaid merchandise into a bag, pocket, or clothing. The L1 conceal event is a soft hint and cannot be verified from the provided frames.","latency_ms":852.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the light blue shirt performs a sequence of actions across frames: moving toward the right-side display, bending down toward their hip area (matching the L1 event's subtype of pocket concealment), consistent with hiding an unpaid item on their person. The multi-frame behavior aligns with concealment intent rather than normal shopping activity.","latency_ms":3302.3},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' at the hip zone, and the trajectory analysis shows a high co-disappear score (1.0) and dwell ratio (1.0), indicating the item was hidden on the person's body rather than placed in a visible bag or cart. Although no direct visual of the item being pocketed is seen in these frames, the multi-frame behavior (approach, pause at hip, then move away without placing in cart) combined with the strong L1 evidence supports concealment intent. The risk score is low but the model and trajectory scores are high, and the weak label is 'positive' for theft.","latency_ms":2981.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the red top is seen placing an item into their pocket, consistent with concealment behavior. This action aligns with the L1 event 'conceal' and indicates intent to hide unpaid merchandise.","latency_ms":2449.6}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting039_x264__C_2__0","clip_id":"ucf_theft__Shoplifting039_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Across sequential frames, the customer is seen moving items from a display counter and concealing them under their clothing (waistband/pants area) in a manner consistent with hiding unpaid merchandise, matching multi-frame behavior indicating concealment.","latency_ms":2527.6,"agreement_hint":"keep_ok","center_ts":82.36666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting039_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__0&file=kf_00_81.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__0&file=kf_01_82.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__0&file=kf_02_82.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__0&file=kf_03_83.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a person standing near a display table and shelf, facing away from the camera. No concealment into bag, pocket, or clothing is visible. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1405.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the customer is seen moving items from a display counter and concealing them under their clothing (waistband/pants area) in a manner consistent with hiding unpaid merchandise, matching multi-frame behavior indicating concealment.","latency_ms":2527.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The person is standing near a display area, facing the shelves and looking toward the entrance, with hands on hips in a relaxed posture. No visual evidence of picking up, holding, or concealing any item is present across the frames. The behavior aligns with normal browsing — possibly waiting or observing — and no concealment action (e.g., into bag/pocket/clothes) is observed. L1 event 'qty_spike' alone is insufficient without visual confirmation of theft.","latency_ms":2279.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen picking up an item, examining it briefly, and placing it into a shopping basket. There is no evidence of concealment or hiding the item on their body. The behavior aligns with normal shopping activity.","latency_ms":1742.5}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting039_x264__C_2__conceal__0","clip_id":"ucf_theft__Shoplifting039_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen concealing an item into their pocket (as indicated by the L1 event 'conceal' with subtype 'pocket'), which aligns with behavior consistent with shoplifting intent. The person's actions across the frames suggest an attempt to hide merchandise without paying.","latency_ms":1958.6,"agreement_hint":"keep_ok","center_ts":10.766666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting039_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__conceal__0&file=kf_00_9.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__conceal__0&file=kf_01_10.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__conceal__0&file=kf_02_11.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__conceal__0&file=kf_03_11.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The keyframes show a person walking through the store, but no clear concealment of merchandise into a bag, pocket, or clothing is visible. The L1 event suggests a concealment at the hip, but the visual evidence does not confirm this action across the frames.","latency_ms":1074.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual is observed moving from the center of the store to the right-side shelf area, with their hand positioned at their hip (matching the L1 conceal event subtype of pocket) across sequential frames, and exits the frame after this action, consistent with hiding an unpaid item in their clothing.","latency_ms":2033.7},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappearance (item vanishes from view) and high score (0.759), strongly indicates the person concealed an item in their pocket or clothing. The person's posture and movement toward the exit without proceeding to checkout support this. No visual of the item being placed in a bag or cart, but the 'pocket' subtype and high confidence in concealment align with 'conceal_unpaid'.","latency_ms":2583.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen concealing an item into their pocket (as indicated by the L1 event 'conceal' with subtype 'pocket'), which aligns with behavior consistent with shoplifting intent. The person's actions across the frames suggest an attempt to hide merchandise without paying.","latency_ms":1958.6}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting039_x264__C_2__qty_spike__1","clip_id":"ucf_theft__Shoplifting039_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Across sequential frames, the customer is seen moving items from a display area and concealing them under their clothing (torso/waist area) without any visible payment action, consistent with hiding unpaid merchandise. The L1 qty_spike event aligns with the observed multi-frame behavior of handling and concealing products.","latency_ms":3204.9,"agreement_hint":"keep_ok","center_ts":82.36666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting039_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__qty_spike__1&file=kf_00_81.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__qty_spike__1&file=kf_01_82.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__qty_spike__1&file=kf_02_82.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting039_x264__C_2__qty_spike__1&file=kf_03_83.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a person standing near a display table and then walking toward the exit. No visual evidence of concealing merchandise into a bag, pocket, or clothing is visible. The L1 qty_spike event is a soft hint and not supported by clear concealment behavior in the provided keyframes.","latency_ms":1481.4},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the customer is seen moving items from a display area and concealing them under their clothing (torso/waist area) without any visible payment action, consistent with hiding unpaid merchandise. The L1 qty_spike event aligns with the observed multi-frame behavior of handling and concealing products.","latency_ms":3204.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The person is standing near a display with hands on hips, facing the entrance/exit area, and appears to be browsing or waiting. No visual evidence of picking up, holding, or concealing any merchandise. The L1 event 'qty_spike' is likely a false positive (e.g., due to motion detection or proxy signal), but without actual visual confirmation of item handling or concealment, this behavior aligns with normal browsing. No concealment action is observed across frames.","latency_ms":3609.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is seen picking up an item, holding it briefly, and examining it while standing near the checkout counter. There is no visible concealment into a bag, pocket, or clothing, and the behavior aligns with normal shopping activity rather than shoplifting intent.","latency_ms":2523.8}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_10__conceal__3","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual in the white long-sleeve shirt repeatedly manipulates clothing near their torso, with multi-frame behavior showing actions consistent with hiding an item under their clothing, matching the L1 conceal event subtype of under_clothes.","latency_ms":3242.6,"agreement_hint":"keep_ok","center_ts":41.56666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__conceal__3&file=kf_00_40.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__conceal__3&file=kf_01_41.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__conceal__3&file=kf_02_41.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__conceal__3&file=kf_03_42.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action under clothes, and the multi-frame sequence shows a person in the foreground with a white top and dark hair whose body orientation and hand movements are consistent with hiding an item near the waistband or under clothing while browsing. The concealment is not fully visible due to occlusion, but the behavior aligns with the L1 conceal hint and the trajectory evidence of item disappearance.","latency_ms":1794.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the white long-sleeve shirt repeatedly manipulates clothing near their torso, with multi-frame behavior showing actions consistent with hiding an item under their clothing, matching the L1 conceal event subtype of under_clothes.","latency_ms":3242.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high trajectory score (0.6678) + co_disappear=1.0 across 6 frames strongly indicates concealment under clothes. The person's posture (bending, hand near waist/hip area) and the context of being in a clothing store support intent to hide merchandise without payment. No visible checkout or return actions occur.","latency_ms":2858.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen picking up and examining clothing items, which is consistent with normal shopping behavior. There is no visible concealment of merchandise into a bag, pocket, or under clothes across the frames.","latency_ms":2072.5}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_29__conceal__5","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer is seen placing an item under their clothing, which is consistent with concealment behavior. This action aligns with the L1 event 'conceal' and indicates an intent to hide unpaid merchandise.","latency_ms":1618.3,"agreement_hint":"keep_ok","center_ts":146.76666666666668,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__conceal__5&file=kf_00_145.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__conceal__5&file=kf_01_146.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__conceal__5&file=kf_02_147.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__conceal__5&file=kf_03_147.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action under clothes, and the multi-frame sequence shows a person in the foreground handling merchandise near their waistline, consistent with hiding unpaid items.","latency_ms":1489.6},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual with dark hair and white top is observed moving a clothing item toward their underclothes (midsection) across sequential frames, consistent with hiding an unpaid product under clothing, matching the L1 conceal event subtype of under_clothes.","latency_ms":2778.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 1.0) indicates the person likely concealed an item under clothing. The person’s posture—bending slightly, hand near waist/hip area, and holding a bag while standing close to others—supports concealment intent. No visual of the item being placed in a bag or pocket is seen, but the multi-frame behavior (dwell, co-disappear, and lack of visible re-emergence) strongly suggests unpaid concealment. This aligns with the rule that only steal/conceal_unpaid when visuals show concealment into bag/pocket/clothes or clear multi-frame hiding intent.","latency_ms":3463.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item under their clothing, which is consistent with concealment behavior. This action aligns with the L1 event 'conceal' and indicates an intent to hide unpaid merchandise.","latency_ms":1618.3}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_3__conceal__13","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer is seen picking up a purple garment and placing it into their bag, which aligns with the 'conceal' L1 event indicating intent to hide unpaid merchandise. The behavior across frames shows clear concealment into the bag.","latency_ms":2400.8,"agreement_hint":"keep_ok","center_ts":485.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_3__conceal__13&file=kf_00_484.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_3__conceal__13&file=kf_01_484.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_3__conceal__13&file=kf_02_485.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_3__conceal__13&file=kf_03_486.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the multi-frame sequence shows the person handling merchandise in a manner consistent with hiding it on their body rather than browsing or checking out.","latency_ms":1564.4},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the white top is observed moving a purple garment from a display rack and concealing it under their outer clothing at their hip, consistent with the L1 conceal event subtype of pocket/hip concealment, with multi-frame behavior showing the garment being hidden on their body rather than normal shopping activity.","latency_ms":3162.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' at hip level, and the trajectory analysis shows co-disappearance (item vanishes from view after interaction), dwell ratio of 1.0, and high model score (0.85). The person's behavior across frames shows them interacting with merchandise near the hip area, consistent with hiding an item in a pocket or under clothing, without placing it in a visible cart or basket. This aligns with 'conceal_unpaid' as defined: hiding product on the body with clear intent to avoid payment.","latency_ms":2901.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen picking up a purple garment and placing it into their bag, which aligns with the 'conceal' L1 event indicating intent to hide unpaid merchandise. The behavior across frames shows clear concealment into the bag.","latency_ms":2400.8}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_40__conceal__10","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer is seen placing an item into a bag or pocket area near their hip, consistent with concealment behavior. This action aligns with the L1 event 'conceal' and is supported by visual evidence across multiple frames.","latency_ms":2239.8,"agreement_hint":"keep_ok","center_ts":396.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_40__conceal__10&file=kf_00_395.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_40__conceal__10&file=kf_01_396.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_40__conceal__10&file=kf_02_396.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_40__conceal__10&file=kf_03_397.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the multi-frame sequence shows a person in the foreground interacting with merchandise in a manner consistent with hiding an item on their body.","latency_ms":1416.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#40) is observed over multiple frames moving an item toward their hip pocket (consistent with the L1 conceal event subtype of pocket), with multi-frame behavior showing intent to hide the item on their body rather than browse or checkout.","latency_ms":3646.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after interaction) and high model score (0.85), strongly indicates the person concealed an item in their pocket or clothing. The multi-frame behavior shows them interacting with merchandise near the hip area, consistent with hiding an unpaid item. No visual of payment or return to shelf is observed.","latency_ms":2528.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item into a bag or pocket area near their hip, consistent with concealment behavior. This action aligns with the L1 event 'conceal' and is supported by visual evidence across multiple frames.","latency_ms":2239.8}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_48__conceal__11","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen placing an item into their front pocket, which is a clear act of concealment. This behavior aligns with the 'conceal_unpaid' label as it indicates an intent to hide merchandise without paying.","latency_ms":2743.8,"agreement_hint":"keep_ok","center_ts":439.96666666666664,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__conceal__11&file=kf_00_438.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__conceal__11&file=kf_01_439.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__conceal__11&file=kf_02_440.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__conceal__11&file=kf_03_441.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The keyframes show a woman in a white top and blue jeans moving through the store and then reaching toward her waistband/hip area in a manner consistent with concealing an item, matching the L1 conceal event (subtype: pocket, zone: hip). The multi-frame sequence captures the concealment motion rather than mere browsing.","latency_ms":1557.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#48) is observed over multiple frames moving their hand toward their hip pocket (per L1 event subtype: pocket, zone: hip) while handling clothing, consistent with hiding an unpaid item on their person, matching the conceal_unpaid criteria of hiding merchandise in a pocket/on the body.","latency_ms":4239.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with high trajectory score (0.7429) and co-disappear signal (1.0), indicates the person likely concealed an item in their hip/pocket area. The person's body language—hand moving toward the hip area while walking away from the rack—and the context of being in a clothing store support this. No visual evidence shows the item being placed in a bag or returned to a shelf, and the risk score is low but the meta data strongly suggests concealment intent. This aligns with 'conceal_unpaid' as defined: hiding merchandise on the body without payment.","latency_ms":3013.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their front pocket, which is a clear act of concealment. This behavior aligns with the 'conceal_unpaid' label as it indicates an intent to hide merchandise without paying.","latency_ms":2743.8}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_4__conceal__0","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen placing an item into their waistband/pocket area, consistent with concealing unpaid merchandise. This behavior aligns with the 'conceal' L1 event and is supported by visual evidence across multiple frames.","latency_ms":1860.6,"agreement_hint":"keep_ok","center_ts":5.566666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__conceal__0&file=kf_00_4.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__conceal__0&file=kf_01_5.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__conceal__0&file=kf_02_5.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__conceal__0&file=kf_03_6.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The keyframes show a person in the center of the frame with a dark shoulder bag. Across the sequence, they appear to be interacting with merchandise while their body and bag are positioned in a way that suggests concealing an item, consistent with the L1 conceal event (subtype: pocket, zone: hip). The multi-frame behavior indicates hiding intent rather than normal browsing.","latency_ms":2055.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual is observed moving an item toward their hip pocket across sequential frames, consistent with hiding an unpaid item on their person, matching the L1 conceal event subtype of pocket concealment.","latency_ms":2411.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view) and high score (0.6748), indicates the person is hiding an item on their person. The multi-frame behavior shows the individual moving with a bag or item near their hip, consistent with concealment into pocket or under clothing. No payment or return to shelf is observed, supporting unpaid concealment intent.","latency_ms":2614.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their waistband/pocket area, consistent with concealing unpaid merchandise. This behavior aligns with the 'conceal' L1 event and is supported by visual evidence across multiple frames.","latency_ms":1860.6}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_5__conceal__6","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual (P#5) is holding multiple garments and moving toward their hip pocket (per L1 event subtype 'pocket'), with multi-frame behavior showing the action of positioning items to conceal them on their person, consistent with hiding unpaid merchandise.","latency_ms":3190.3,"agreement_hint":"keep_ok","center_ts":148.76666666666668,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__conceal__6&file=kf_00_147.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__conceal__6&file=kf_01_148.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__conceal__6&file=kf_02_149.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_5__conceal__6&file=kf_03_149.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the multi-frame sequence shows a person handling merchandise in a manner consistent with hiding it on their body rather than openly carrying it.","latency_ms":1825.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#5) is holding multiple garments and moving toward their hip pocket (per L1 event subtype 'pocket'), with multi-frame behavior showing the action of positioning items to conceal them on their person, consistent with hiding unpaid merchandise.","latency_ms":3190.3},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' at hip zone, and the trajectory analysis shows co-disappear (item vanishes from view after interaction) with high score (0.65) and 100% dwell ratio. The person's posture and hand motion toward the hip area across multiple frames suggest hiding an item in a pocket or waistband, consistent with concealment intent. No payment or return to shelf is observed.","latency_ms":2657.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is seen picking up and examining clothing items, placing them into a shopping basket, and interacting with the merchandise in a manner consistent with normal shopping behavior. There is no visible concealment of unpaid items into bags, pockets, or under clothes.","latency_ms":2064.0}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_87__conceal__16","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer is seen placing an item into her bag, which is consistent with concealment behavior. The L1 event 'conceal' further supports this inference, as it indicates a potential attempt to hide unpaid merchandise.","latency_ms":2311.6,"agreement_hint":"keep_ok","center_ts":807.5666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__conceal__16&file=kf_00_806.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__conceal__16&file=kf_01_807.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__conceal__16&file=kf_02_807.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__conceal__16&file=kf_03_808.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The person is seen moving through the store and placing an item into a bag/pocket area at the hip, consistent with concealment behavior across multiple frames.","latency_ms":1467.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Multi-frame visual evidence shows the customer moving an item toward her hip pocket (consistent with the L1 conceal event subtype of pocket), with trajectory and model score supporting hiding an unpaid product on her person rather than normal shopping actions.","latency_ms":3366.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (1.0) and high model score (0.85), indicates the person likely concealed an item in their pocket or waist area. The person's posture and movement near the clothing racks, along with the absence of the item in visible hands or cart, support concealment intent rather than browsing or checkout. No payment is observed, and the risk score is low but not zero, suggesting the act may be subtle but still identifiable as concealment.","latency_ms":2807.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item into her bag, which is consistent with concealment behavior. The L1 event 'conceal' further supports this inference, as it indicates a potential attempt to hide unpaid merchandise.","latency_ms":2311.6}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_8__conceal__2","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen making a deliberate motion to conceal an item into their pocket, consistent with shoplifting behavior. The L1 event 'conceal' further supports this inference.","latency_ms":2068.8,"agreement_hint":"keep_ok","center_ts":25.966666666666665,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__conceal__2&file=kf_00_24.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__conceal__2&file=kf_01_25.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__conceal__2&file=kf_02_26.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_8__conceal__2&file=kf_03_27.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a conceal action at the hip/pocket with a high model score, and the keyframes show the person in the act of handling merchandise near their body in a manner consistent with concealment. While the visual evidence is not perfectly clear, the combination of the L1 event and the observed behavior supports a concealment determination.","latency_ms":1217.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#8) is observed over multiple frames moving an item toward their hip pocket, consistent with the L1 conceal event subtype of pocket concealment, showing multi-frame behavior of hiding an unpaid item on their person.","latency_ms":3069.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view) and high model score (0.85), strongly indicates the person is concealing an item in their pocket or clothing. The multi-frame behavior shows the person holding items while moving toward the hip area, consistent with hiding merchandise without payment. This aligns with the definition of 'conceal_unpaid' — hiding a product on the body — not just browsing.","latency_ms":3059.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen making a deliberate motion to conceal an item into their pocket, consistent with shoplifting behavior. The L1 event 'conceal' further supports this inference.","latency_ms":2068.8}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_10__1","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The customer with dark hair in a white top is observed moving clothing from the rack and tucking it into the back of her jeans (under her clothing) across sequential frames, which constitutes hiding an unpaid product on her body.","latency_ms":2923.5,"agreement_hint":"keep_ok","center_ts":43.166666666666664,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__1&file=kf_00_42.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__1&file=kf_01_42.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__1&file=kf_02_43.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__1&file=kf_03_44.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The keyframes show customers browsing and handling clothing on racks, with no visible concealment into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding unpaid merchandise.","latency_ms":1478.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer with dark hair in a white top is observed moving clothing from the rack and tucking it into the back of her jeans (under her clothing) across sequential frames, which constitutes hiding an unpaid product on her body.","latency_ms":2923.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing clothing racks, reaching for items, and appears to be examining or selecting garments in a normal shopping manner. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothes) or intent to steal. The L1 event 'qty_spike' with 'taken_proxy>=2' may reflect rapid item handling during selection, but without visible concealment, it remains consistent with browsing behavior.","latency_ms":2099.9},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is picking up and examining clothing items from the rack, which is consistent with normal shopping behavior. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames.","latency_ms":1515.5}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_10__qty_spike__4","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The customer in the white top and jeans is observed moving clothing from the rack and positioning items under her lifted top (waist area) across consecutive frames, which constitutes hiding unpaid merchandise on her body. The L1 qty_spike event aligns with the multi-frame behavior of taking items to conceal them, matching the visual evidence of hiding.","latency_ms":2776.0,"agreement_hint":"keep_ok","center_ts":43.166666666666664,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__qty_spike__4&file=kf_00_42.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__qty_spike__4&file=kf_01_42.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__qty_spike__4&file=kf_02_43.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_10__qty_spike__4&file=kf_03_44.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The keyframes show customers browsing and handling clothing on racks in a retail store. No clear concealment into bags, pockets, or clothing is visible across the frames. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding merchandise.","latency_ms":1186.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer in the white top and jeans is observed moving clothing from the rack and positioning items under her lifted top (waist area) across consecutive frames, which constitutes hiding unpaid merchandise on her body. The L1 qty_spike event aligns with the multi-frame behavior of taking items to conceal them, matching the visual evidence of hiding.","latency_ms":2776.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is actively browsing clothes, reaching into a rack, picking up items, and examining them — typical shopping behavior. There is no visual evidence of concealment (e.g., putting items into pockets, bags, or under clothing) or hiding actions across frames. The L1 'qty_spike' event may reflect rapid item handling during browsing, not theft. No intent to steal is visible.","latency_ms":2088.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is seen picking up and examining clothing items from the rack, which is consistent with normal shopping behavior. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames.","latency_ms":2199.3}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_29__3","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual in the white top and jeans is seen moving a clothing item from the rack and concealing it inside the back of their pants (under clothing) across sequential frames, which matches the definition of hiding unpaid merchandise. The L1 qty_spike event aligns with the observed action of taking an item to conceal, supporting the visual evidence.","latency_ms":3317.8,"agreement_hint":"keep_ok","center_ts":157.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__3&file=kf_00_156.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__3&file=kf_01_157.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__3&file=kf_02_157.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__3&file=kf_03_158.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks. No clear concealment into bags, pockets, or clothing is visible across the sequence. The L1 qty_spike signal is a soft hint and lacks matching visual evidence of hiding merchandise.","latency_ms":1415.0},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the white top and jeans is seen moving a clothing item from the rack and concealing it inside the back of their pants (under clothing) across sequential frames, which matches the definition of hiding unpaid merchandise. The L1 qty_spike event aligns with the observed action of taking an item to conceal, supporting the visual evidence.","latency_ms":3317.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customers are actively browsing clothing racks, picking up items, examining them, and placing them back or holding them while shopping—consistent with normal retail behavior. No visual evidence of concealment (e.g., putting items into bags/pockets/clothes without paying) is observed across the frames. The L1 event 'qty_spike' with 'handheld_peak>=2' may reflect brief handling but does not indicate theft without additional concealment cues.","latency_ms":2309.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are seen picking up, holding, and examining clothing items in a typical shopping manner. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames. The behavior aligns with normal browsing and product evaluation.","latency_ms":2214.3}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_29__qty_spike__8","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"A woman in a white top and jeans is observed over multiple frames placing clothing items into her pants waistband, hiding them from view, which constitutes concealing unpaid merchandise. The L1 qty_spike event aligns with this multi-frame concealment behavior.","latency_ms":3892.8,"agreement_hint":"keep_ok","center_ts":157.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__qty_spike__8&file=kf_00_156.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__qty_spike__8&file=kf_01_157.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__qty_spike__8&file=kf_02_157.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_29__qty_spike__8&file=kf_03_158.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks. No clear concealment into bags, pockets, or clothing is visible. The L1 qty_spike event is a soft hint and not supported by visual evidence of hiding merchandise.","latency_ms":1299.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"A woman in a white top and jeans is observed over multiple frames placing clothing items into her pants waistband, hiding them from view, which constitutes concealing unpaid merchandise. The L1 qty_spike event aligns with this multi-frame concealment behavior.","latency_ms":3892.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The person is actively browsing clothing racks, picking up and examining items, and holding them visibly while standing near the rack. There is no visual evidence of concealment into bags, pockets, or under clothes. The 'qty_spike' L1 event may reflect multiple items being handled quickly during normal browsing (e.g., checking several garments), but without any indication of hiding or attempting to leave without paying, this remains within normal shopping behavior.","latency_ms":2171.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are seen picking up, holding, and examining clothing items in a typical shopping manner. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames. The behavior aligns with normal browsing and product evaluation.","latency_ms":2258.6}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_48__5","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen holding a garment close to their body and appears to be concealing it under their top or into their bag, consistent with shoplifting intent across multiple frames.","latency_ms":2868.3,"agreement_hint":"keep_ok","center_ts":444.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__5&file=kf_00_443.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__5&file=kf_01_444.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__5&file=kf_02_444.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__5&file=kf_03_445.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks without any visible concealment into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1243.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The woman in the white top is seen holding a dark garment and moving it toward her body/back area across sequential frames, consistent with hiding an unpaid product, supported by the L1 qty_spike event indicating a potential take of multiple items.","latency_ms":2945.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.8,"agreement_hint":"keep_ok","rationale":"The customer (C#48) is seen browsing and then, in the final frames, appears to be placing an item into a bag or pocket while turning away from the rack—consistent with concealment behavior. The L1 event 'qty_spike' and 'taken_proxy>=2' support multiple items being handled, and the multi-frame sequence shows intent to hide merchandise without paying. No visible checkout or return action occurs.","latency_ms":2025.5},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen holding a garment close to their body and appears to be concealing it under their top or into their bag, consistent with shoplifting intent across multiple frames.","latency_ms":2868.3}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_48__qty_spike__12","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The person in the blue top is seen placing an item into her bag or under her clothing while browsing, which indicates an intent to conceal unpaid merchandise. This behavior aligns with shoplifting intent across multiple frames.","latency_ms":1846.4,"agreement_hint":"keep_ok","center_ts":444.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__qty_spike__12&file=kf_00_443.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__qty_spike__12&file=kf_01_444.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__qty_spike__12&file=kf_02_444.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_48__qty_spike__12&file=kf_03_445.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The keyframes show customers browsing and handling clothing on racks without any visible concealment into bags, pockets, or clothing. The L1 qty_spike event is a soft hint and lacks matching visual evidence of hiding merchandise.","latency_ms":1783.8},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The woman in the white top is seen holding a dark bag and moving toward her torso/side, with multi-frame behavior showing she is concealing an item (consistent with hiding unpaid merchandise) rather than normal shopping actions like examining or placing items in a cart. The L1 qty_spike event aligns with this observed concealment behavior.","latency_ms":2825.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#48) is seen browsing and then, in the final frames, appears to be placing an item into a bag or pocket while turning away from the rack—consistent with concealment behavior. The L1 event 'qty_spike' with taken_proxy=2 and take_burst>=2/25s supports multiple items being handled quickly, and the visual sequence shows her moving toward the exit with a bag that may contain unpaid merchandise. No clear checkout or return action is observed.","latency_ms":2945.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person in the blue top is seen placing an item into her bag or under her clothing while browsing, which indicates an intent to conceal unpaid merchandise. This behavior aligns with shoplifting intent across multiple frames.","latency_ms":1846.4}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_4__0","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The customer in the white top is observed moving an item toward their torso/under their clothing across sequential frames, consistent with hiding an unpaid product, matching the L1 event's handheld peak signal indicating multiple items handled with intent to conceal.","latency_ms":2844.2,"agreement_hint":"keep_ok","center_ts":13.966666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__0&file=kf_00_12.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__0&file=kf_01_13.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__0&file=kf_02_14.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__0&file=kf_03_15.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks; no concealment into a bag, pocket, or clothing is visible. The L1 qty_spike is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1770.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer in the white top is observed moving an item toward their torso/under their clothing across sequential frames, consistent with hiding an unpaid product, matching the L1 event's handheld peak signal indicating multiple items handled with intent to conceal.","latency_ms":2844.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customers are actively browsing clothing racks, picking up items, examining them, and placing them back on the rack or holding them while shopping. There is no visual evidence of concealment (e.g., putting items into bags, pockets, or under clothes) or intent to steal. The L1 event 'qty_spike' with 'handheld_peak>=2' may reflect multiple items being held briefly for inspection, which is consistent with normal browsing behavior in a retail setting.","latency_ms":2491.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are seen browsing through clothing items on the racks, picking up and examining garments. There is no visible concealment of merchandise into bags, pockets, or under clothes. The behavior appears consistent with normal shopping activity.","latency_ms":1793.9}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_4__qty_spike__1","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The customer in the white top is observed moving an item toward their torso/under their clothing across sequential frames, consistent with hiding an unpaid product, supported by the L1 qty_spike event indicating a quantity change associated with this activity.","latency_ms":2453.5,"agreement_hint":"keep_ok","center_ts":13.966666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__qty_spike__1&file=kf_00_12.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__qty_spike__1&file=kf_01_13.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__qty_spike__1&file=kf_02_14.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_4__qty_spike__1&file=kf_03_15.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and handling clothing on racks; no concealment into bags, pockets, or clothing is visible. The L1 qty_spike is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":935.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer in the white top is observed moving an item toward their torso/under their clothing across sequential frames, consistent with hiding an unpaid product, supported by the L1 qty_spike event indicating a quantity change associated with this activity.","latency_ms":2453.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customers are actively browsing clothing racks, picking up items, examining them, and placing them back or holding them while shopping—consistent with normal retail behavior. No visual evidence of concealment (e.g., putting items into bags/pockets/clothes) or intent to steal is observed across the frames. The L1 event 'qty_spike' is likely due to multiple items being handled in quick succession during normal browsing (e.g., trying on or comparing), not theft.","latency_ms":2496.2},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are seen examining and handling clothing items on the racks, consistent with normal shopping behavior. There is no visible concealment of merchandise into bags, pockets, or under clothes across the frames.","latency_ms":2091.4}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_71__6","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Across the sequence of frames, the customer in the turquoise shirt is manipulating clothing from the rack while their personal bag is positioned at their side, with visual evidence of movement that suggests placing an item into the bag, consistent with hiding unpaid merchandise. The L1 qty_spike event aligns with this observed multi-frame behavior of concealing an item.","latency_ms":3151.3,"agreement_hint":"keep_ok","center_ts":665.9666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__6&file=kf_00_664.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__6&file=kf_01_665.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__6&file=kf_02_666.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__6&file=kf_03_667.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The person is seen browsing clothing racks and holding items near a bag, but there is no clear visual evidence of concealing unpaid merchandise into a bag, pocket, or clothing. The L1 qty_spike event is a soft hint and not sufficient for a concealment determination.","latency_ms":1461.0},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across the sequence of frames, the customer in the turquoise shirt is manipulating clothing from the rack while their personal bag is positioned at their side, with visual evidence of movement that suggests placing an item into the bag, consistent with hiding unpaid merchandise. The L1 qty_spike event aligns with this observed multi-frame behavior of concealing an item.","latency_ms":3151.3},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is browsing clothing racks, standing in front of a rack and appearing to examine items. There is no visual evidence of concealment (e.g., putting items into bag/pocket/clothes) or hiding behavior across frames. The L1 event 'qty_spike' with 'handheld_peak>=2' may indicate brief handling but is consistent with normal shopping (e.g., picking up multiple items to compare), not theft. No intent to steal is visible.","latency_ms":3486.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is seen browsing through clothing items on the rack, picking up and examining garments. There is no visible concealment of merchandise into a bag, pocket, or under clothes across the frames. The behavior aligns with normal shopping activity.","latency_ms":1982.4}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_71__conceal__14","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer is seen placing an item under their clothing, which is a clear concealment behavior indicating intent to shoplift. This is supported by the L1 event 'conceal' and the visual evidence of the item being hidden.","latency_ms":1812.0,"agreement_hint":"keep_ok","center_ts":662.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__conceal__14&file=kf_00_661.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__conceal__14&file=kf_01_662.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__conceal__14&file=kf_02_662.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__conceal__14&file=kf_03_663.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The keyframes show a person browsing clothing racks with a shoulder bag, but no clear concealment action (e.g., placing merchandise into the bag or under clothes) is visible across the frames. The L1 conceal hint is not corroborated by visual evidence.","latency_ms":1465.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer is repeatedly reaching into their open bag while browsing clothing racks, with L1 event data indicating a concealment event under clothes, consistent with multi-frame behavior of hiding an unpaid item.","latency_ms":2743.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) combined with trajectory evidence (co_disappear = 1.0, dwell_ratio = 1.0) indicates the person likely concealed an item under their clothes. The person is standing near a clothing rack, and while no explicit visual of the concealment is seen in these frames, the consistent context and high-confidence L1 signal support concealment intent. No payment or visible return to shelf occurs, and the behavior aligns with shoplifting via under-clothes concealment.","latency_ms":2903.3},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen placing an item under their clothing, which is a clear concealment behavior indicating intent to shoplift. This is supported by the L1 event 'conceal' and the visual evidence of the item being hidden.","latency_ms":1812.0}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting040_x264__C_71__qty_spike__15","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Across sequential frames, the customer uses their open hand to move clothing on the rack while their large shoulder bag is positioned at their side, with visual evidence of the hand moving toward the bag area consistent with hiding an unpaid item; the L1 qty_spike event provides supporting context for potential concealment, matching multi-frame behavior of hiding merchandise in a personal bag.","latency_ms":3954.2,"agreement_hint":"keep_ok","center_ts":665.9666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__qty_spike__15&file=kf_00_664.83s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__qty_spike__15&file=kf_01_665.60s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__qty_spike__15&file=kf_02_666.33s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_71__qty_spike__15&file=kf_03_667.10s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a shopper browsing clothing racks with a shoulder bag; no visible concealment into bag, pockets, or clothing is evident across the sequence. The L1 qty_spike is a soft hint only and lacks matching visual concealment evidence.","latency_ms":1122.2},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the customer uses their open hand to move clothing on the rack while their large shoulder bag is positioned at their side, with visual evidence of the hand moving toward the bag area consistent with hiding an unpaid item; the L1 qty_spike event provides supporting context for potential concealment, matching multi-frame behavior of hiding merchandise in a personal bag.","latency_ms":3954.2},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The customer is browsing clothing racks, standing in front of merchandise, and appears to be examining items. There is no visual evidence of concealment (e.g., putting items into bag/pocket/clothes) or hiding behavior across the frames. The L1 event 'qty_spike' with 'handheld_peak>=2' may indicate brief handling but does not confirm theft without visible concealment. Since the person remains in the open, interacting with items normally (e.g., looking, possibly touching), this falls under normal shopping behavior.","latency_ms":3364.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is seen browsing through clothing items on the rack, picking up and examining garments. There is no visible concealment of merchandise into a bag, pocket, or under clothes. The behavior appears consistent with normal shopping activity.","latency_ms":1965.9}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_87__7","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen picking up a red garment and placing it into her bag, which indicates an intent to conceal unpaid merchandise. This behavior aligns with the 'conceal_unpaid' label as she actively hides the item from view.","latency_ms":1893.5,"agreement_hint":"keep_ok","center_ts":810.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__7&file=kf_00_809.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__7&file=kf_01_810.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__7&file=kf_02_810.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__7&file=kf_03_811.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The person is seen browsing and handling clothing on racks without any visible concealment into a bag, pocket, or clothing. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1384.0},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across the sequence of frames, the customer is observed interacting with clothing items near the rack, moving toward her patterned bag, and positioning items in a manner consistent with hiding unpaid merchandise in her bag, which aligns with multi-frame behavior indicating concealment of products.","latency_ms":3572.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#87) is seen repeatedly interacting with clothing items in a manner suggesting concealment: she bends down near the floor, reaches into a lower rack area where items are less visible, and appears to manipulate items while partially obscured by her body and bag. Her posture and actions—especially the repeated bending and reaching into low areas without placing items in a visible cart or basket—align with typical shoplifting behavior of hiding merchandise on the person. The L1 event 'qty_spike' and 'taken_proxy>=2' support this, but the visual evidence of concealment (e.g., hiding items under clothes or in bag) is consistent across frames. No clear checkout or return to shelf is observed.","latency_ms":3232.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen picking up a red garment and placing it into her bag, which indicates an intent to conceal unpaid merchandise. This behavior aligns with the 'conceal_unpaid' label as she actively hides the item from view.","latency_ms":1893.5}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting040_x264__C_87__qty_spike__17","clip_id":"ucf_theft__Shoplifting040_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen picking up a red garment and placing it into their bag, which indicates an intent to conceal unpaid merchandise. This behavior aligns with shoplifting intent across multiple frames.","latency_ms":1757.9,"agreement_hint":"keep_ok","center_ts":810.3666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting040_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__qty_spike__17&file=kf_00_809.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__qty_spike__17&file=kf_01_810.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__qty_spike__17&file=kf_02_810.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting040_x264__C_87__qty_spike__17&file=kf_03_811.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The person is seen browsing and handling clothing on racks without any visible concealment into a bag, pocket, or clothing. The L1 qty_spike event is a soft hint and not supported by clear visual evidence of hiding merchandise.","latency_ms":1491.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across the sequence of frames, the customer is observed taking a red garment from the clothing rack and moving it toward her large patterned bag, consistent with hiding an unpaid product in her bag. The L1 qty_spike event aligns with the multi-frame action of taking an item to conceal it, matching the visual evidence of hiding merchandise.","latency_ms":3449.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#87) is seen repeatedly interacting with merchandise in a way that suggests concealment: she bends down near the floor, reaches into a low clothing rack, and appears to retrieve items without placing them in a visible basket or cart. Her body posture and hand movements—particularly reaching under or behind racks while keeping her back partially turned—indicate an intent to hide items on her person (e.g., in her bag or clothing). The L1 event 'qty_spike' with 'taken_proxy>=2' and 'take_burst>=2/25s' supports rapid, repeated handling of items, consistent with shoplifting behavior rather than normal browsing. No payment or checkout is observed, and no items are visibly placed in a cart. This aligns with 'conceal_unpaid' as defined: hiding items on the body via multi-frame behavior.","latency_ms":5520.3},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen picking up a red garment and placing it into their bag, which indicates an intent to conceal unpaid merchandise. This behavior aligns with shoplifting intent across multiple frames.","latency_ms":1757.9}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting041_x264__C_13__conceal__6","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The woman in the maroon sari is seen moving an item toward her hip pocket across sequential frames, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior showing intent to hide the unpaid item on her person.","latency_ms":2422.1,"agreement_hint":"keep_ok","center_ts":360.76666666666665,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__conceal__6&file=kf_00_359.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__conceal__6&file=kf_01_360.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__conceal__6&file=kf_02_361.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__conceal__6&file=kf_03_361.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a conceal action at the hip/pocket with a model score of 0.85, and the keyframes show a person in a maroon outfit standing near a counter with items, consistent with hiding merchandise on the body.","latency_ms":3158.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The woman in the maroon sari is seen moving an item toward her hip pocket across sequential frames, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior showing intent to hide the unpaid item on her person.","latency_ms":2422.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (item vanishes from view after approach) and high model score (0.85), strongly suggests the person concealed an item in their pocket or clothing. The multi-frame behavior shows the person standing near the counter, then turning away while holding something near their hip area—consistent with hiding merchandise. No payment is observed, and no clear return to shelf or cart placement occurs. This meets the criteria for 'conceal_unpaid' as defined: hiding product on body without visible payment intent.","latency_ms":3111.4},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is standing at a checkout counter with items placed on the counter, indicating they are in the process of paying for their purchases. There is no evidence of concealment or hiding of merchandise.","latency_ms":1692.1}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting041_x264__C_3__conceal__1","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer is seen reaching up to a high shelf and appears to be placing an item into her pocket or bag, consistent with concealment behavior. This action aligns with the L1 event 'conceal' and suggests intent to shoplift.","latency_ms":2691.1,"agreement_hint":"keep_ok","center_ts":24.766666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_3__conceal__1&file=kf_00_23.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_3__conceal__1&file=kf_01_24.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_3__conceal__1&file=kf_02_25.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_3__conceal__1&file=kf_03_25.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.6,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a concealment action at the hip/pocket with a high model score, and the keyframes show a person in a pink outfit with a white bag near the hip area, consistent with hiding merchandise. While the visual evidence is not perfectly clear, the multi-frame behavior and L1 hint support concealment.","latency_ms":1554.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual (P#3) is observed moving an item toward their hip pocket across sequential frames, matching the L1 conceal event subtype of pocket concealment, with multi-frame behavior indicating hiding an unpaid product rather than normal shopping actions.","latency_ms":2842.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (product vanishes from view after interaction) and high model score (0.85), strongly indicates the person concealed an item in their pocket or clothing. The multi-frame behavior shows the individual interacting with shelves, then moving away with no visible payment, supporting concealment intent. No clear checkout or return to shelf is observed.","latency_ms":2451.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is seen reaching up to a high shelf and appears to be placing an item into her pocket or bag, consistent with concealment behavior. This action aligns with the L1 event 'conceal' and suggests intent to shoplift.","latency_ms":2691.1}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting041_x264__C_10__conceal__2","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The L1 event 'conceal' with subtype 'under_clothes' and the visual evidence of a person placing an item under their clothing strongly indicate intent to steal by concealing unpaid merchandise.","latency_ms":2046.4,"agreement_hint":"keep_ok","center_ts":100.36666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_10__conceal__2&file=kf_00_99.23s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_10__conceal__2&file=kf_01_100.00s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_10__conceal__2&file=kf_02_100.73s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_10__conceal__2&file=kf_03_101.50s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.4,"agreement_hint":"uncertain","rationale":"The L1 event suggests concealment under clothes, but the keyframes show only people standing and browsing; no clear visual evidence of hiding merchandise on the body is visible across the frames.","latency_ms":1360.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event indicates a conceal event under clothes, with model score 0.85 and subtype 'under_clothes'; visual evidence across frames shows the individual in the pink outfit adjusting their upper body/scarf area consistent with hiding an item under clothing, matching the concealment behavior.","latency_ms":2897.5},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high trajectory score (0.59) + dwell ratio (0.83) indicates sustained, suspicious behavior near the body. The person (C#10, P#10) is standing at the counter while holding an item up near their head/shoulder area for multiple frames — a posture consistent with hiding an item under clothing or in a bag not visible to camera. No payment occurs, and no clear return to shelf or cart is observed. This matches the definition of 'conceal_unpaid' where concealment into clothing is inferred from multi-frame behavior and context, despite lack of direct visual proof of the item being hidden.","latency_ms":3515.4},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and the visual evidence of a person placing an item under their clothing strongly indicate intent to steal by concealing unpaid merchandise.","latency_ms":2046.4}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting041_x264__C_11__0","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Multi-frame behavior shows the individual in the pink outfit moving items toward their body, with actions consistent with hiding unpaid merchandise, supported by the L1 qty_spike event indicating an unusual number of items were taken from the shelf area.","latency_ms":3187.1,"agreement_hint":"keep_ok","center_ts":137.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__0&file=kf_00_136.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__0&file=kf_01_137.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__0&file=kf_02_137.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__0&file=kf_03_138.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and moving through the store; no clear concealment into bag, pocket, or clothing is visible across the sequence.","latency_ms":1150.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Multi-frame behavior shows the individual in the pink outfit moving items toward their body, with actions consistent with hiding unpaid merchandise, supported by the L1 qty_spike event indicating an unusual number of items were taken from the shelf area.","latency_ms":3187.1},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person in maroon (C#11) is seen moving toward the exit while holding an item close to their body, and then appears to duck or turn quickly near the doorway—consistent with concealing merchandise under clothing or into a bag. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, and the multi-frame behavior shows intent to hide rather than return or pay. No visible checkout or return occurs.","latency_ms":2428.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are at a checkout counter, with one person appearing to pay or complete a transaction while the other waits nearby. There is no visible concealment of merchandise into bags, pockets, or clothing, and their behavior aligns with typical checkout activity.","latency_ms":1699.8}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting041_x264__C_11__conceal__3","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Visual evidence across frames shows a person placing an item into a pocket (consistent with the L1 conceal event subtype of pocket) while moving toward the exit, with multi-frame behavior indicating hiding an unpaid item rather than normal shopping or checkout.","latency_ms":3198.0,"agreement_hint":"keep_ok","center_ts":124.76666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__conceal__3&file=kf_00_123.63s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__conceal__3&file=kf_01_124.40s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__conceal__3&file=kf_02_125.13s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__conceal__3&file=kf_03_125.90s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.5,"agreement_hint":"uncertain","rationale":"The keyframes show individuals near a counter with bags, but no clear concealment of unpaid merchandise into pockets or clothing is visible. The L1 conceal event is a soft hint, but visual evidence does not confirm shoplifting intent.","latency_ms":1637.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Visual evidence across frames shows a person placing an item into a pocket (consistent with the L1 conceal event subtype of pocket) while moving toward the exit, with multi-frame behavior indicating hiding an unpaid item rather than normal shopping or checkout.","latency_ms":3198.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with trajectory evidence showing co-disappear (product vanishing from view after interaction) and dwell ratio of 1.0, strongly indicates concealment. The person in the pink dress is at the counter, and the visual flow suggests they placed an item into a pocket or under clothing near the hip area—consistent with multi-frame concealment intent. No payment is observed, and the risk score, though low, aligns with the soft signal. This meets the criteria for 'conceal_unpaid' as defined: hiding on the body without visible checkout.","latency_ms":3176.4},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.95,"agreement_hint":"miss_pos","rationale":"The person is at the checkout counter, interacting with the cashier and placing items into a shopping bag. There is no evidence of concealment or hiding unpaid merchandise. The behavior aligns with normal checkout procedures.","latency_ms":2201.0}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting041_x264__C_11__qty_spike__4","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"Multi-frame behavior shows the customer in the pink dress moving items toward her body, with actions consistent with hiding unpaid merchandise, supported by the L1 qty_spike event indicating a quantity change that aligns with concealment intent across the sequence of frames.","latency_ms":3784.6,"agreement_hint":"keep_ok","center_ts":137.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__qty_spike__4&file=kf_00_136.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__qty_spike__4&file=kf_01_137.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__qty_spike__4&file=kf_02_137.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_11__qty_spike__4&file=kf_03_138.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show customers browsing and moving through the store; no clear concealment into bag, pocket, or clothing is visible across the sequence. The L1 qty_spike is a soft hint only and lacks matching visual evidence of hiding merchandise.","latency_ms":1958.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Multi-frame behavior shows the customer in the pink dress moving items toward her body, with actions consistent with hiding unpaid merchandise, supported by the L1 qty_spike event indicating a quantity change that aligns with concealment intent across the sequence of frames.","latency_ms":3784.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The person in maroon (C#11) is seen moving toward the exit while holding an item close to their body, and then appears to duck or turn quickly near the doorway—consistent with concealing merchandise under clothing or into a bag. The L1 event 'qty_spike' with multiple takes and handheld peak supports this intent, and no payment or return action is observed. The behavior across frames shows clear concealment intent rather than browsing or checkout.","latency_ms":2752.3},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individuals are at a checkout counter, with one person appearing to be in the process of paying or handing over items. There is no visible concealment of merchandise into bags, pockets, or under clothing. The behavior aligns with normal checkout activity.","latency_ms":1687.7}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting041_x264__C_7__1","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual in the maroon shirt is seen placing an item into their bag, which is a clear act of concealment. This behavior aligns with shoplifting intent as the item is not visibly placed into a shopping cart or basket for checkout.","latency_ms":2273.1,"agreement_hint":"keep_ok","center_ts":173.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__1&file=kf_00_172.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__1&file=kf_01_173.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__1&file=kf_02_173.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__1&file=kf_03_174.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a person holding a white bag and standing near a counter with items, but there is no clear visual evidence of concealing unpaid merchandise into a bag, pocket, or clothing. The behavior appears consistent with normal shopping or carrying a personal bag.","latency_ms":1434.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the maroon top is seen moving items toward a white bag across consecutive frames, with actions consistent with hiding unpaid merchandise in the bag, matching the definition of concealment of unpaid items.","latency_ms":2300.3},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#7) is seen holding a white bag and then appears to place an item into it while standing near the counter. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, and the behavior of placing something into the bag without proceeding to checkout indicates concealment intent. The person’s posture and movement toward the bag, combined with the context of being near the counter but not paying, support shoplifting intent. No clear payment or return action is observed.","latency_ms":2280.3},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the maroon shirt is seen placing an item into their bag, which is a clear act of concealment. This behavior aligns with shoplifting intent as the item is not visibly placed into a shopping cart or basket for checkout.","latency_ms":2273.1}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"ucf_theft__Shoplifting041_x264__C_7__conceal__0","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The individual in the blue top is observed over consecutive frames moving an item toward their hip pocket (consistent with the L1 conceal event subtype of pocket), showing multi-frame behavior of hiding an unpaid product on their person.","latency_ms":2859.8,"agreement_hint":"keep_ok","center_ts":15.566666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__conceal__0&file=kf_00_14.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__conceal__0&file=kf_01_15.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__conceal__0&file=kf_02_15.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__conceal__0&file=kf_03_16.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.4,"agreement_hint":"uncertain","rationale":"The L1 event suggests a concealment into a pocket at the hip, but the provided keyframes show only general store activity with people browsing and holding items. No clear visual evidence of hiding merchandise in clothing or a bag is visible across the frames.","latency_ms":1578.8},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual in the blue top is observed over consecutive frames moving an item toward their hip pocket (consistent with the L1 conceal event subtype of pocket), showing multi-frame behavior of hiding an unpaid product on their person.","latency_ms":2859.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'pocket' and zone 'hip', combined with the person's posture (bending slightly toward the counter while holding a child), suggests an attempt to hide an item in their clothing or pocket. The multi-frame context shows no clear payment action, and the person is not visibly placing items into a cart or basket. The high model score (0.85) and legacy streak (5) support this interpretation despite low trajectory evidence.","latency_ms":2778.1},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The person is at a checkout counter, interacting with the cashier and appears to be in the process of paying for items. There is no visible concealment or intent to hide merchandise.","latency_ms":1801.8}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"ucf_theft__Shoplifting041_x264__C_7__qty_spike__5","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual in the maroon top is seen placing an item into their bag, which is a clear act of concealment. This behavior aligns with shoplifting intent as they attempt to hide unpaid merchandise.","latency_ms":1617.9,"agreement_hint":"keep_ok","center_ts":173.56666666666666,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__qty_spike__5&file=kf_00_172.43s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__qty_spike__5&file=kf_01_173.20s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__qty_spike__5&file=kf_02_173.93s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_7__qty_spike__5&file=kf_03_174.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show a person holding a white bag and interacting with merchandise at a counter, but there is no clear visual evidence of concealing unpaid items into pockets, clothing, or a personal bag. The behavior appears consistent with normal shopping or browsing.","latency_ms":1362.8},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the individual in the maroon top is seen moving items toward their white bag, with actions consistent with hiding unpaid merchandise into the bag rather than normal shopping activity. The L1 qty_spike event aligns with this observed behavior of transferring items to a bag without visible checkout activity.","latency_ms":3093.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#7) is seen holding a white bag and repeatedly reaching toward the counter area while another person stands nearby. The L1 event 'qty_spike' with 'taken_proxy>=2' suggests multiple items were taken, and the behavior of lingering near the counter without placing items in a cart or proceeding to checkout indicates intent to conceal unpaid merchandise. The white bag appears to be used for hiding items, consistent with concealment behavior across frames.","latency_ms":3008.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual in the maroon top is seen placing an item into their bag, which is a clear act of concealment. This behavior aligns with shoplifting intent as they attempt to hide unpaid merchandise.","latency_ms":1617.9}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting041_x264__C_13__2","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer (C#13) is seen interacting with the counter while another person stands nearby. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, but more importantly, the customer’s posture—bending slightly, hands near the waist/counter area, and the presence of a white bag on the counter—combined with the context of the store layout and lack of visible payment, strongly indicates concealment of unpaid merchandise. No clear checkout or return action is observed; instead, the behavior aligns with shoplifting intent where items are hidden on the body or in bags without payment. The multi-frame sequence shows no item being placed into a cart or basket, nor any visible payment action.","latency_ms":3265.8,"agreement_hint":"keep_ok","center_ts":391.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__2&file=kf_00_390.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__2&file=kf_01_390.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__2&file=kf_02_391.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__2&file=kf_03_392.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.7,"agreement_hint":"miss_pos","rationale":"The frames show two individuals standing at a counter with visible merchandise; no concealment into bags, pockets, or clothing is evident. The L1 qty_spike is a soft hint only and lacks visual confirmation of hiding behavior.","latency_ms":1712.7},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is holding and examining a product in a normal shopping manner, with no visible concealment into bags, pockets, or under clothing across the sequence of frames. The L1 qty_spike event is a soft hint without matching visual evidence of concealment.","latency_ms":2733.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#13) is seen interacting with the counter while another person stands nearby. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, but more importantly, the customer’s posture—bending slightly, hands near the waist/counter area, and the presence of a white bag on the counter—combined with the context of the store layout and lack of visible payment, strongly indicates concealment of unpaid merchandise. No clear checkout or return action is observed; instead, the behavior aligns with shoplifting intent where items are hidden on the body or in bags without payment. The multi-frame sequence shows no item being placed into a cart or basket, nor any visible payment action.","latency_ms":3265.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is at the checkout counter, interacting with the cashier and handling products in a manner consistent with paying for items. There is no visible concealment of merchandise into bags, pockets, or under clothing.","latency_ms":1766.5}]},{"kind":"keep_ok","profile":"qwen_flash","model":"qwen3-vl-flash","case_id":"ucf_theft__Shoplifting041_x264__C_13__qty_spike__7","clip_id":"ucf_theft__Shoplifting041_x264","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The customer (C#13) is seen interacting with the counter while another person stands nearby. The L1 event 'qty_spike' and high 'handheld_peak' suggest multiple items were handled quickly. In the sequence, the customer’s hands are near the counter surface, and there is a white bag or item being held close to the body—consistent with concealing merchandise under clothing or into a bag. No payment is visible, and the behavior aligns with shoplifting intent: rapid handling of multiple items without placing them in a cart or basket, followed by potential concealment. The presence of multiple items on the counter and the customer’s posture indicate an attempt to hide goods rather than normal browsing.","latency_ms":3449.3,"agreement_hint":"keep_ok","center_ts":391.1666666666667,"corpus":"ucf","media_url":"/api/media/dataset/ucf_crime__shoplifting__Shoplifting041_x264.mp4","playable":true,"keyframe_urls":["/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__qty_spike__7&file=kf_00_390.03s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__qty_spike__7&file=kf_01_390.80s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__qty_spike__7&file=kf_02_391.53s.jpg","/api/path1_case_keyframe?case_id=ucf_theft__Shoplifting041_x264__C_13__qty_spike__7&file=kf_03_392.30s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.6,"agreement_hint":"miss_pos","rationale":"The frames show two individuals standing at a counter with visible merchandise; no concealment into bags, pockets, or clothing is evident. The L1 qty_spike is a soft proxy and lacks visual confirmation of hiding behavior.","latency_ms":1395.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is holding and examining a product over the counter, consistent with normal shopping behavior of inspecting merchandise, with no visual evidence of concealing unpaid items into a bag, pocket, or under clothes.","latency_ms":2677.0},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer (C#13) is seen interacting with the counter while another person stands nearby. The L1 event 'qty_spike' and high 'handheld_peak' suggest multiple items were handled quickly. In the sequence, the customer’s hands are near the counter surface, and there is a white bag or item being held close to the body—consistent with concealing merchandise under clothing or into a bag. No payment is visible, and the behavior aligns with shoplifting intent: rapid handling of multiple items without placing them in a cart or basket, followed by potential concealment. The presence of multiple items on the counter and the customer’s posture indicate an attempt to hide goods rather than normal browsing.","latency_ms":3449.3},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"normal_checkout","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The customer is at the checkout counter, interacting with the cashier and handling products in a manner consistent with paying for items. There is no evidence of concealment or hiding unpaid merchandise.","latency_ms":2899.1}]},{"kind":"keep_ok","profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","case_id":"zenodo_theft__main220_Trim5__C_1__conceal__0","clip_id":"zenodo_theft__main220_Trim5","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"rationale":"The customer is seen moving an item from the shelf toward his hip pocket (as indicated by L1 conceal event subtype pocket) across sequential frames, hiding the item from view rather than placing it into the shopping basket, consistent with concealing unpaid merchandise.","latency_ms":2790.8,"agreement_hint":"keep_ok","center_ts":1.5666666666666667,"corpus":"zenodo","media_url":null,"playable":false,"keyframe_urls":["/api/path1_case_keyframe?case_id=zenodo_theft__main220_Trim5__C_1__conceal__0&file=kf_00_0.43s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main220_Trim5__C_1__conceal__0&file=kf_01_1.20s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main220_Trim5__C_1__conceal__0&file=kf_02_1.93s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main220_Trim5__C_1__conceal__0&file=kf_03_2.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.7,"agreement_hint":"keep_ok","rationale":"The person is seen holding a shopping basket while reaching toward the shelf, and the L1 event indicates a concealment action into a pocket at the hip. The multi-frame sequence shows the person moving through the aisle with the basket, consistent with hiding merchandise rather than normal browsing or checkout.","latency_ms":1373.9},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The customer is seen moving an item from the shelf toward his hip pocket (as indicated by L1 conceal event subtype pocket) across sequential frames, hiding the item from view rather than placing it into the shopping basket, consistent with concealing unpaid merchandise.","latency_ms":2790.8},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event explicitly flags 'conceal' with subtype 'pocket' and zone 'hip', supported by trajectory evidence showing co-disappearance (item vanishes from view after interaction) and high model score (0.85). Visually, the person picks up an item (frame 1), then in subsequent frames (2–4) walks away while holding the basket but also appears to have the item tucked into their pocket or waist area—consistent with concealment behavior. No visible placement into cart/basket or return to shelf occurs; no checkout is seen. This meets the criteria for 'conceal_unpaid' as defined: hiding product on body with multi-frame intent, not just a single grab.","latency_ms":3486.8},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"browse_fp","vlm_steal":false,"confidence":0.9,"agreement_hint":"miss_pos","rationale":"The individual is holding a shopping basket and examining products on the shelves, consistent with normal shopping behavior. There is no visible concealment of merchandise into a bag, pocket, or under clothing across the frames.","latency_ms":2492.2}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"zenodo_theft__main303_Trim1__C_1__conceal__0","clip_id":"zenodo_theft__main303_Trim1","weak_label":"positive","l1_event_type":"conceal","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen walking through the aisle while adjusting a backpack, which aligns with the L1 event 'conceal' indicating potential concealment of unpaid merchandise. The behavior suggests an intent to hide items on their person.","latency_ms":2615.3,"agreement_hint":"keep_ok","center_ts":1.5666666666666667,"corpus":"zenodo","media_url":null,"playable":false,"keyframe_urls":["/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__conceal__0&file=kf_00_0.43s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__conceal__0&file=kf_01_1.20s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__conceal__0&file=kf_02_1.93s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__conceal__0&file=kf_03_2.70s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The sequence of frames shows the person holding a black backpack open in front of their torso while manipulating an item near the bag's opening, consistent with concealing merchandise. The L1 event subtype 'under_clothes' and model score support this, and the multi-frame behavior indicates hiding intent rather than normal browsing.","latency_ms":1689.5},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the individual adjusts a large black bag while in the snack aisle, with L1 event data indicating concealment under clothes (consistent with hiding unpaid merchandise). The multi-frame behavior shows intentional manipulation of the bag to hide items, matching the conceal_unpaid label criteria.","latency_ms":3569.4},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The L1 event 'conceal' with subtype 'under_clothes' and high model score (0.85) is supported by visual evidence: the person repeatedly reaches toward the right side of their body while holding a large black bag, then later walks forward with the bag held close to their torso—consistent with hiding an item under clothing or in the bag. The trajectory analysis shows co-disappear (1.0) and dwell ratio 1.0, indicating sustained focus on concealment behavior. No visible payment or return actions occur; no items are placed in cart or basket. This aligns with 'conceal_unpaid' per rules: multi-frame intent to hide unpaid merchandise, not just browsing.","latency_ms":3224.0},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen walking through the aisle while adjusting a backpack, which aligns with the L1 event 'conceal' indicating potential concealment of unpaid merchandise. The behavior suggests an intent to hide items on their person.","latency_ms":2615.3}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"zenodo_theft__main303_Trim1__C_1__0","clip_id":"zenodo_theft__main303_Trim1","weak_label":"positive","l1_event_type":null,"vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen placing an item into their backpack while walking through the aisle, which indicates an intent to conceal unpaid merchandise. This behavior aligns with shoplifting intent.","latency_ms":2044.7,"agreement_hint":"keep_ok","center_ts":3.566666666666667,"corpus":"zenodo","media_url":null,"playable":false,"keyframe_urls":["/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__0&file=kf_00_2.43s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__0&file=kf_01_3.20s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__0&file=kf_02_3.93s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__0&file=kf_03_3.93s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.6,"agreement_hint":"uncertain","rationale":"The frames show a man walking down an aisle holding a black bag, but there is no clear visual evidence of him placing unpaid merchandise into the bag or concealing items on his person. The L1 qty_spike event is a soft hint and not sufficient without matching visual concealment evidence.","latency_ms":918.1},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"Across sequential frames, the individual is seen adjusting a large black bag against their torso, then lifting it to their shoulder in a manner consistent with concealing unpaid merchandise within the bag, with no visible payment activity to indicate normal checkout. The L1 qty_spike event aligns with the behavior of taking items to conceal, matching multi-frame hiding intent.","latency_ms":3483.6},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is holding a black bag and repeatedly brings his hand to the front of his torso (e.g., frame 1 and 2), consistent with placing an item inside the bag or under his shirt. The L1 event 'qty_spike' and 'taken_proxy>=2' suggest multiple items were taken, but more importantly, the multi-frame behavior—specifically the repeated hand-to-bag/torso motion while walking through the aisle—indicates concealment intent rather than normal shopping. No items are seen placed in a cart or basket; instead, the bag is carried openly but used for hiding. This matches the definition of 'conceal_unpaid': putting a product into a bag/pocket/under clothes, inferred from overall multi-frame behavior.","latency_ms":3735.6},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their backpack while walking through the aisle, which indicates an intent to conceal unpaid merchandise. This behavior aligns with shoplifting intent.","latency_ms":2044.7}]},{"kind":"keep_ok","profile":"qwen_plus","model":"qwen-vl-plus","case_id":"zenodo_theft__main303_Trim1__C_1__qty_spike__1","clip_id":"zenodo_theft__main303_Trim1","weak_label":"positive","l1_event_type":"qty_spike","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"rationale":"The individual is seen placing an item into their backpack while walking through the aisle, which indicates an intent to conceal unpaid merchandise. This behavior aligns with the 'conceal_unpaid' label as it shows a clear action of hiding an item on their person.","latency_ms":8476.4,"agreement_hint":"keep_ok","center_ts":3.566666666666667,"corpus":"zenodo","media_url":null,"playable":false,"keyframe_urls":["/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__qty_spike__1&file=kf_00_2.43s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__qty_spike__1&file=kf_01_3.20s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__qty_spike__1&file=kf_02_3.93s.jpg","/api/path1_case_keyframe?case_id=zenodo_theft__main303_Trim1__C_1__qty_spike__1&file=kf_03_3.93s.jpg"],"peers":[{"profile":"deepseek_flash","model":"deepseek-v4-flash","vlm_label":"uncertain","vlm_steal":false,"confidence":0.6,"agreement_hint":"uncertain","rationale":"The frames show a man walking down an aisle holding a black bag, but there is no visible merchandise being concealed into the bag, pockets, or clothing. The L1 qty_spike event is a soft hint only and lacks matching visual evidence of concealment.","latency_ms":1410.3},{"profile":"doubao_mini","model":"doubao-seed-2-0-mini-260428","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.85,"agreement_hint":"keep_ok","rationale":"The individual is seen placing a black bag under their shirt (concealing it against their torso) and then securing it over their shoulder, consistent with hiding an unpaid item on their person across sequential frames. The L1 qty_spike event supports the inference of taking items to conceal, matching the visual behavior of hiding a bag under clothing.","latency_ms":2930.9},{"profile":"qwen_flash","model":"qwen3-vl-flash","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The customer is walking down the aisle with a black bag slung over his shoulder, and in the first frame, he is seen adjusting or pressing his hand against the front of the bag near his chest—consistent with placing or securing an item inside. His posture and hand motion suggest concealment rather than casual carrying. The L1 event 'qty_spike' (with taken_proxy=2) supports multiple items being taken, and combined with the visual of him holding the bag close to his body while walking away from shelves, this indicates intent to hide unpaid merchandise. No items are seen being placed in a cart or returned to shelves; instead, the bag’s position and his actions align with concealment.","latency_ms":3344.7},{"profile":"qwen_plus","model":"qwen-vl-plus","vlm_label":"conceal_unpaid","vlm_steal":true,"confidence":0.9,"agreement_hint":"keep_ok","rationale":"The individual is seen placing an item into their backpack while walking through the aisle, which indicates an intent to conceal unpaid merchandise. This behavior aligns with the 'conceal_unpaid' label as it shows a clear action of hiding an item on their person.","latency_ms":8476.4}]}],"n_fp":18,"n_miss":81,"n_keep":173,"n_keep_unique":63,"definitions":{"keep_ok":"weak+ 且 VLM 判偷（正报）","fp_kept":"weak− 仍被 VLM 判偷（误报）","miss_pos":"weak+ 未被 VLM 判偷（漏报）"}}}