models/classifier_models/mi_vs_normal_segmented/model_metadata.json

{
  "model_name": "Arsenal",
  "model_file": "arsenal_segmented_model.pkl",
  "use_case": "MI vs Normal (Segmented)",
  "positive_class": "MYOCARDIAL_INFARCTION",
  "negative_class": "NORMAL",
  "class_labels": [
    "NORMAL",
    "MYOCARDIAL_INFARCTION"
  ],
  "features": [
    "I",
    "aVR",
    "V1",
    "V4",
    "II",
    "aVL",
    "V2",
    "V5",
    "III",
    "aVF",
    "V3",
    "V6"
  ],
  "n_features": 12,
  "n_timesteps": 140,
  "hyperparameters": {
    "num_kernels": 20000,
    "random_state": 42,
    "n_jobs": 1
  },
  "training_data": "data/ptb_xl/segmented_heartbeats.csv",
  "training_date": "2026-06-03 03:58:21",
  "training_time_seconds": 10302.47,
  "preprocessing": {
    "normalization": "per_subject_max_abs",
    "smote_tomek": true,
    "test_size": 0.25,
    "random_state": 42
  },
  "training_samples": 6954,
  "test_samples": 2349,
  "test_metrics": {
    "accuracy": 0.922520221370796,
    "precision": 0.940864960282436,
    "recall": 0.9026248941574937,
    "f1": 0.9213483146067416,
    "sensitivity": 0.9026248941574937,
    "specificity": 0.9426369863013698,
    "confusion_matrix": [
      [
        1101,
        67
      ],
      [
        115,
        1066
      ]
    ]
  }
}