{
  "model_name": "difficulty_model",
  "model_version": "difficulty_model_v2_baseline_001",
  "dataset_version": "2.0.0",
  "seed": 42,
  "split_counts": {
    "train": 3912,
    "validation": 1033,
    "test": 875
  },
  "hyperparameters": {
    "n_estimators": 100,
    "random_state": 42,
    "algorithm": "RandomForestRegressor",
    "encoder": "OrdinalEncoder"
  },
  "feature_columns": [
    "bloom_score",
    "grade",
    "subject",
    "question_type"
  ],
  "categorical_columns": [
    "subject",
    "question_type"
  ],
  "numeric_columns": [
    "bloom_score",
    "grade"
  ],
  "target_column": "difficulty_score",
  "algorithm": "RandomForestRegressor"
}