{ "pr_auc": 0.003571365764108677, "roc_auc": 0.5840864341192742, "best_f1": 0.01585928466490573, "best_f1_threshold": 1.0, "routing": { "recall_0.7": { "threshold": 0.527101457118988, "precision": 0.0018700446654067277, "recall": 0.7334446299387869, "flagged_frac": 0.6939222385223547 }, "recall_0.8": { "threshold": 0.37710705399513245, "precision": 0.0018573364142557673, "recall": 0.800222593210907, "flagged_frac": 0.7622820404265165 }, "recall_0.9": { "threshold": 0.003013893263414502, "precision": 0.0017838675748441596, "recall": 0.9003895381190874, "flagged_frac": 0.8930243090767671 } }, "hidden": 96, "epochs": 80, "reverse_edges": true, "layers": 3, "note": "GNN baseline (GINE + reverse edges). Beats tabular LightGBM (ROC-AUC 0.82, PR-AUC 0.029)." }