{
  "task": "binary_normal_vs_anomaly",
  "dataset": "HTill/dcase2025_task2_dev",
  "classes": [
    "normal",
    "anomaly"
  ],
  "feature_names": [
    "duration_s",
    "rms_db",
    "rms_variance",
    "zero_crossing_rate",
    "spectral_centroid_hz",
    "spectral_bandwidth_hz",
    "spectral_rolloff_hz",
    "dominant_frequency_hz",
    "harmonic_ratio",
    "onset_rate_per_sec",
    "has_regular_pattern",
    "pattern_interval_ms",
    "peak_db",
    "anomaly_score"
  ],
  "threshold": 0.45,
  "threshold_balanced": 0.5,
  "tuned": {
    "threshold": 0.22,
    "recall": 0.81,
    "precision": 0.4682080924855491,
    "accuracy": 0.556,
    "target_recall": 0.8
  },
  "accuracy": 0.712,
  "roc_auc": 0.7248,
  "f1": 0.5813953488372093,
  "cv_auc_mean": 0.7583066666666667,
  "cv_auc_std": 0.02463910532286251,
  "n_train": 1000,
  "n_test": 250,
  "n_total": 1250,
  "confusion_matrix": [
    [
      128,
      22
    ],
    [
      50,
      50
    ]
  ],
  "confusion_matrix_tuned": [
    [
      58,
      92
    ],
    [
      19,
      81
    ]
  ],
  "per_machine": {
    "bearing": {
      "accuracy": 0.660377358490566,
      "n": 53
    },
    "fan": {
      "accuracy": 0.723404255319149,
      "n": 47
    },
    "gearbox": {
      "accuracy": 0.7017543859649122,
      "n": 57
    },
    "slider": {
      "accuracy": 0.6590909090909091,
      "n": 44
    },
    "valve": {
      "accuracy": 0.8163265306122449,
      "n": 49
    }
  },
  "operating_points": {
    "balanced": {
      "threshold": 0.45,
      "recall": 0.56,
      "precision": 0.6829268292682927,
      "accuracy": 0.72,
      "confusion_matrix": [
        [
          124,
          26
        ],
        [
          44,
          56
        ]
      ]
    },
    "safety": {
      "threshold": 0.22,
      "recall": 0.81,
      "precision": 0.4682080924855491,
      "accuracy": 0.556,
      "confusion_matrix": [
        [
          58,
          92
        ],
        [
          19,
          81
        ]
      ]
    }
  }
}