{ "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 ] ] } }