{
  "schema_version": 1,
  "scope": "Synthetic workflow regression fixture, not a detector benchmark or field trial.",
  "batch": "枫庭小区 · 模拟早班",
  "provenance": "原创合成场景，无真实住户或监控，不是模型推理结果或实地部署测量。",
  "policy": {
    "score_threshold": 0.6,
    "quality_threshold": 0.5,
    "merge_gap_seconds": 30,
    "parking_grace_seconds": 30
  },
  "matching": "Same camera, zone, anonymous track, category; temporal IoU >= 0.1; greedy one-to-one highest overlap.",
  "raw_observations": 36,
  "grouped_events": 12,
  "baseline": {
    "predictions": 33,
    "references": 9,
    "true_positive": 7,
    "false_positive": 26,
    "missed": 2,
    "precision": 0.21212121212121213,
    "recall": 0.7777777777777778,
    "matches": [
      {
        "prediction": "event:unbooked-1",
        "reference": "ref-unbooked",
        "iou": 0.38461538461538464
      },
      {
        "prediction": "event:reverse-1",
        "reference": "ref-reverse",
        "iou": 0.38461538461538464
      },
      {
        "prediction": "event:bags-1",
        "reference": "ref-bags",
        "iou": 0.38461538461538464
      },
      {
        "prediction": "event:full-bin-1",
        "reference": "ref-full-bin",
        "iou": 0.38461538461538464
      },
      {
        "prediction": "event:door-held-1",
        "reference": "ref-door-held",
        "iou": 0.29411764705882354
      },
      {
        "prediction": "event:bay-17-1",
        "reference": "ref-bay-17",
        "iou": 0.29411764705882354
      },
      {
        "prediction": "event:van-route-1",
        "reference": "ref-van-route",
        "iou": 0.23809523809523808
      }
    ],
    "missed_ids": [
      "ref-dark-route",
      "ref-unseen-overflow"
    ]
  },
  "proposed": {
    "predictions": 9,
    "references": 9,
    "true_positive": 8,
    "false_positive": 1,
    "missed": 1,
    "precision": 0.8888888888888888,
    "recall": 0.8888888888888888,
    "matches": [
      {
        "prediction": "event:door-held-1",
        "reference": "ref-door-held",
        "iou": 1
      },
      {
        "prediction": "event:van-route-1",
        "reference": "ref-van-route",
        "iou": 1
      },
      {
        "prediction": "event:reverse-1",
        "reference": "ref-reverse",
        "iou": 1
      },
      {
        "prediction": "event:dark-route-1",
        "reference": "ref-dark-route",
        "iou": 1
      },
      {
        "prediction": "event:unbooked-1",
        "reference": "ref-unbooked",
        "iou": 1
      },
      {
        "prediction": "event:bay-17-1",
        "reference": "ref-bay-17",
        "iou": 1
      },
      {
        "prediction": "event:bags-1",
        "reference": "ref-bags",
        "iou": 1
      },
      {
        "prediction": "event:full-bin-1",
        "reference": "ref-full-bin",
        "iou": 1
      }
    ],
    "missed_ids": [
      "ref-unseen-overflow"
    ]
  },
  "queue_reduction": 0.7272727272727273,
  "urgent_uncertain": 1,
  "limitations": [
    "No computer vision model is executed.",
    "Synthetic labels and thresholds are authored for regression coverage, not estimated from a production population.",
    "One reference event has no observation and remains missed.",
    "A contact cue is deliberately a false positive; the operator must resolve it.",
    "No claim about damage prevented, staffing hours saved or real-world accuracy."
  ]
}