{
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    "evidence_gate": {
      "conflict_rule": "weak kept only if computed_verdict in {label, normal}",
      "perception": "confirmed + weak-nonconflict",
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    "forge_model_commit": "229ee98152d6588a07ce2ee9251d199bd2a88def",
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      "scalogram": 30,
      "spectrogram": 30,
      "spectrum": 30,
      "waveform": 30
    }
  },
  "dataset": "XJTU-perception",
  "generated_at": "2026-07-14T21:06:57",
  "raw_form_provenance": {
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        "confirmed": 30,
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      },
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      },
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    "files_used": 1201,
    "generation": {
      "forge_agent_commit": "250c7e5f893bf76aa359dd32549e023903e4f6b5",
      "generated_at": "2026-07-14T07:46:00",
      "params": {
        "channel": "horizontal",
        "excluded_compound": {
          "Bearing1_5": "inner_race+outer_race",
          "Bearing3_2": "inner_race+ball+cage+outer_race"
        },
        "fault_onset": {
          "detected_frac_by_bearing": {
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            "Bearing1_2": 0.248,
            "Bearing1_3": 0.411,
            "Bearing1_4": 0.656,
            "Bearing1_5": 0.308,
            "Bearing2_1": 0.91,
            "Bearing2_2": 0.28,
            "Bearing2_3": 0.298,
            "Bearing2_4": 0.643,
            "Bearing2_5": 0.354,
            "Bearing3_1": 0.927,
            "Bearing3_2": 0.622,
            "Bearing3_3": 0.911,
            "Bearing3_4": 0.931,
            "Bearing3_5": 0.096
          },
          "ladder": {
            "relaxed": {
              "baseline_frac": 0.25,
              "k": 6.0,
              "persist": 2,
              "smooth": 3
            },
            "shortbase": {
              "baseline_frac": 0.1,
              "k": 4.0,
              "persist": 2,
              "smooth": 3
            },
            "strict": {
              "baseline_frac": 0.25,
              "k": 6.0,
              "persist": 8,
              "smooth": 7
            }
          },
          "method": "trend_changepoint on rms health trend (adaptive stride; retry ladder strict->relaxed->shortbase)",
          "pass_by_bearing": {
            "Bearing1_1": "strict",
            "Bearing1_2": "strict-floor",
            "Bearing1_3": "strict",
            "Bearing1_4": "strict",
            "Bearing1_5": "strict",
            "Bearing2_1": "strict",
            "Bearing2_2": "strict",
            "Bearing2_3": "strict",
            "Bearing2_4": "strict",
            "Bearing2_5": "strict",
            "Bearing3_1": "strict",
            "Bearing3_2": "strict",
            "Bearing3_3": "strict",
            "Bearing3_4": "strict",
            "Bearing3_5": "shortbase-floor"
          }
        },
        "fault_per_bearing": {
          "cage": 100,
          "inner_race": 100,
          "outer_race": 60
        },
        "fs": 25600.0,
        "gold": "documented teardown failure element (Table 3); normal=early files (before min(healthy_frac, onset)) of ALL bearings",
        "healthy_frac": 0.3,
        "normal_per_bearing": 40,
        "representations": [
          "spectrum",
          "spectrogram",
          "scalogram",
          "waveform",
          "reshaped"
        ],
        "spectrum_fmax": 650.0,
        "speed": {
          "mean_abs_offset_frac": 0.01256,
          "method": "estimate_speed; scored under {nominal, refined}, best wins",
          "refined_used_frac": 0.721
        },
        "split": {
          "rule": "bearing-wise holdout",
          "test_bearings": [
            "Bearing1_3",
            "Bearing2_3",
            "Bearing2_5",
            "Bearing3_3"
          ]
        },
        "win_seconds": 1.28
      },
      "source": "XJTU-SY accelerated-life bearing datasets (XJTU + Changxing Sumyoung); 15 LDK UER204 run-to-failure bearings, 3 conditions. Cite: Wang et al., IEEE Trans. Reliability 2018 (10.1109/TR.2018.2882682); gold labels = Table 3 of Lei et al., J. Mech. Eng. 55(16) 2019 (10.3901/JME.2019.16.001)",
      "tool": "forge_agent/examples/xjtu/convert.py"
    },
    "gold_conflicts": {
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      "inner_race->ball": 1,
      "normal->cage": 3,
      "normal->inner_race": 39,
      "normal->outer_race": 1,
      "outer_race->ball": 1,
      "outer_race->inner_race": 2
    },
    "labels": {
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      "normal": 2295,
      "outer_race": 2115
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    "records": 6005,
    "splits": {
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      "train": 3940
    }
  },
  "schema": "unified 7-field SFT (cate=C, task=T-C1)",
  "source": "XJTU-SY accelerated-life bearing datasets (XJTU + Changxing Sumyoung); 15 LDK UER204 run-to-failure bearings, 3 conditions",
  "stats": {
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        "weak": 44
      },
      "labels": {
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        "normal": 416,
        "outer_race": 378
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      "splits": {
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    "scalogram": {
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        "normal": 416,
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}