{
  "artifact": "engine_maintenance_pipeline.joblib",
  "pipeline": [
    "IQRCapper",
    "StandardScaler",
    "GradientBoostingClassifier"
  ],
  "requires_module": "preprocessing.py",
  "input_features": [
    "Engine_RPM",
    "Lub_Oil_Pressure",
    "Fuel_Pressure",
    "Coolant_Pressure",
    "Lub_Oil_Temperature",
    "Coolant_Temperature"
  ],
  "positive_class": 1,
  "class_names": {
    "0": "Normal",
    "1": "Requires Maintenance"
  },
  "best_params": {
    "learning_rate": 0.05,
    "max_depth": 2,
    "n_estimators": 120,
    "subsample": 1.0
  },
  "metrics": {
    "Train_Accuracy": 0.6774,
    "Test_Accuracy": 0.6627,
    "Balanced_Accuracy": 0.5922,
    "Precision": 0.6845,
    "Recall": 0.8624,
    "F1": 0.7632,
    "ROC_AUC": 0.7017
  },
  "model_version": "1.0.0"
}