pino-source-code / results /pimt_v8_multiseed.json
Matthew Ford
pimt v8 multiseed robustness results
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{
"analysis": "pre-committed repeated scaffold-disjoint split robustness check for Delta R2",
"gate": {
"checks": {
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}
},
"seed": 20260710,
"status": "pass"
},
"model_specs": {
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"fixed_hyperparameters": {
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"l2_regularization": 0.1,
"learning_rate": 0.04,
"max_iter": 200,
"model": "HistGradientBoostingRegressor",
"random_state": 17
},
"source": "scripts/train_substantivity.py fit_predict(model_name='gbm')",
"structure": "structure_full_gbm"
},
"n_model_ready": 170,
"pimt_version": "v8",
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"summary": {
"delta_r2": {
"fraction_wins": 0.95,
"mean": 0.12815226446780326,
"n_splits": 20,
"percentile_2_5_97_5": [
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"n_splits": 20,
"percentile_2_5_97_5": [
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},
"target": "Poucher measured log10 coefficient only; no inferred, OpenPOM, or volatility-derived substantivity labels used.",
"test_fraction": 0.2
}