{ "mae": 3.6631188250223796, "rmse": 6.95660019937431, "r2": 0.9702407057933086, "cv_r2_mean": 0.9732488798210385, "cv_r2_std": 0.0016249976898991066, "train_time_s": 0.4539225101470947, "features": [ "num_packages", "total_weight_kg", "num_stops", "route_difficulty_score", "estimated_time_minutes", "experience_days", "recent_avg_workload", "recent_hard_days" ], "feature_importances": { "num_packages": 0.2921975553035736, "total_weight_kg": 0.08021678775548935, "num_stops": 0.07934663444757462, "route_difficulty_score": 0.005875657312572002, "estimated_time_minutes": 0.4705999195575714, "experience_days": 0.060129713267087936, "recent_avg_workload": 0.002936065196990967, "recent_hard_days": 0.008697610348463058 }, "train_samples": 12000, "test_samples": 3000 }