Archive rf_gaia_logg_optuna_20260202_121918_metadata.json under legacy/
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legacy/rf_gaia_logg_optuna_20260202_121918_metadata.json
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{
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"model_id": "rf_gaia_logg_optuna_20260202_121918",
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"timestamp": "20260202_121918",
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"model_name": "Gaia \u2192 logg (Optuna-optimized)",
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"description": "Surface gravity (logg) prediction using Gaia colors and Optuna hyperparameter optimization",
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"model_type": "RandomForestRegressor",
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"n_features": 6,
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"features": [
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"g",
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"bp",
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"rp",
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"bp_rp",
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"g_bp",
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"g_rp"
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],
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"data_source": "eb_unified_photometry.parquet",
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"target": "logg_gaia",
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"target_transform": "none",
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"train_metrics": {
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"mae": 0.12624556122972627,
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"rmse": 0.17657486631064612,
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"r2": 0.7510911877552165,
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"mean_relative_error": 2.931088722696861,
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"within_5_percent": 84.25144867630753,
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"within_10_percent": 96.75188945003194,
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"within_20_percent": 99.4903676248761,
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"n_samples": 1020932
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},
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"test_metrics": {
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"mae": 0.13231767401034183,
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"rmse": 0.18665655712828602,
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"r2": 0.7224835798159336,
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"mean_relative_error": 3.0781538816026863,
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"within_5_percent": 82.86356833337251,
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"within_10_percent": 96.23482764835406,
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"within_20_percent": 99.38918796085161,
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"n_samples": 255234
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},
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"hyperparameters": {
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"n_estimators": 350,
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"max_depth": 15,
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"min_samples_split": 7,
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"min_samples_leaf": 6,
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"max_features": "sqrt",
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"random_state": 42,
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"n_jobs": -1,
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"verbose": 0
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},
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"config_file": "config/models/gaia_logg_optuna.yaml",
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"data_config": {
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"source_file": "eb_unified_photometry.parquet",
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"source_format": "parquet",
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"source_location": "processed",
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"target": "logg_gaia",
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"features": [
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"g",
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"bp",
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"rp",
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"bp_rp",
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"g_bp",
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"g_rp"
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],
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"id_column": "source_id"
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}
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}
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