A15v2 StackLSTM W1-test R²=-33.4312 W2-verify R²=-6.9289
Browse files
model_metadata_nuaa_v15b.json
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{
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"version": "v15b",
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"sprint": "A15",
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"trained_at": "2026-04-01T19:19:06.990783+00:00",
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"architecture": "StackLSTM",
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"paper_ref": "Sayyad et al., Sensors 2023, 23, 5659",
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"paper_protocol": "WPT db4 level=1, RF selection >0.5, 70/30 within W1",
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"dataset": "NUAA Ideahouse (IEEE DataPort DOI:10.21227/3aa1-5e83)",
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"train_case": "W1 (30 runs, 70%)",
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"test_case": "W1 (30%, held-out)",
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"verify_case": "W2 (18 runs, cross-case)",
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"signal_normalization": "z-score before WPT (paper protocol)",
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"n_wpt_features": 128,
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"n_selected_features": 39,
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"rf_selected_cols": [
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"f061",
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"f057",
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"f058",
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"f101",
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"f045",
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"f096",
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"f000",
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"f042",
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"f046",
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"f016",
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"f041",
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"f052",
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"f005",
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"f021",
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"f039",
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"f064",
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"f038",
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"f062",
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"f049",
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"f050",
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"f079",
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"f047",
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"f053",
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"f037",
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"f055",
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"f080",
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"f048",
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"f094",
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"f033",
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"f078",
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"f054",
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"f091",
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"f095",
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"f034",
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"f117",
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"f063",
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"f032",
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"f075",
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"f036"
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],
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"rf_importance_threshold": 0.5,
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"seq_len": 20,
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"total_ref_sec": 3505.35,
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"w1_test": {
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"r2": -33.4312,
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"rmse": 0.5002,
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"mape": 1267.451,
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"nrmse": 1.6953,
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"rmse_sec": 1753.34
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},
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"w2_verify": {
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"r2": -6.9289,
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"rmse": 0.4175,
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"mape": 718.549,
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"nrmse": 0.8132,
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"rmse_sec": 1463.58
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},
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"r2_benchmark": 0.967,
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"badge": "ESTIMATED",
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"onnx_path": "tft_weights_v15b_cnc_nuaa.onnx",
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"best_pt": "nuaa_best_v15b.pt",
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"feat_mean_path": "nuaa_feat_mean_v15b.npy",
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"feat_std_path": "nuaa_feat_std_v15b.npy",
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"rf_cols_path": "nuaa_rf_selected_cols_v15b.json",
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"signals": [
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"axial_force",
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"bending_moment_x",
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"bending_moment_y",
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"torsion",
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"vib1",
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"vib2",
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"spindle_power",
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"spindle_current"
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],
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"note": "StackLSTM trained from scratch on NUAA WPT features. Paper-exact: signal z-score before WPT, RF selection >0.5, 70/30 split within W1. TFT frozen/unfrozen both failed (R\u00b2=-12.85/-13.87 \u2014 CMAPSS domain mismatch)."
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}
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