{ "model_type": "Gradient Boosting Classifier", "best_params": { "ccp_alpha": 0.0, "criterion": "friedman_mse", "init": null, "learning_rate": 0.015327875046521984, "loss": "log_loss", "max_depth": 5, "max_features": null, "max_leaf_nodes": null, "min_impurity_decrease": 0.0, "min_samples_leaf": 10, "min_samples_split": 20, "min_weight_fraction_leaf": 0.0, "n_estimators": 50, "n_iter_no_change": null, "random_state": 42, "subsample": 1.0, "tol": 0.0001, "validation_fraction": 0.1, "verbose": 0, "warm_start": false }, "test_metrics": { "accuracy": 0.6512540522095206, "precision": 0.6502274795268426, "recall": 0.9669824086603518, "f1_score": 0.7775843307943416, "roc_auc": 0.694657063212122, "pr_auc": 0.7943643677015135 }, "feature_columns": [ "Engine_RPM", "Lub_Oil_Pressure", "Fuel_Pressure", "Coolant_Pressure", "Lub_Oil_Temperature", "Coolant_Temperature" ], "target_column": "Engine_Condition", "class_mapping": { "0": "Normal", "1": "Faulty" } }