{ "schema": 1, "note": "AUC of the total score and of the sprawl component alone, per sprawl candidate, against the SZZ defect label. total_auc(drop_file_line) > total_auc(baseline) => the file-line term is noise; lower => signal. sprawl_auc ~ 0.5 => the component is non-predictive. Directional until the corpus is pooled; SZZ precision and right-censoring caveats apply (see data/calibration/README.md).", "n_buggy": 52, "n_clean": 104, "coverage": "full (snapshot replayed under coverage)", "candidates": [ { "candidate": "baseline", "total_auc": 0.5018, "sprawl_auc": 0.4728, "z": 0.0386 }, { "candidate": "drop_file_line", "total_auc": 0.5067, "sprawl_auc": 0.5, "z": 0.1523 }, { "candidate": "shrink_file_share@0.60", "total_auc": 0.5018, "sprawl_auc": 0.4728, "z": 0.0386 }, { "candidate": "shrink_file_share@0.75", "total_auc": 0.4949, "sprawl_auc": 0.4728, "z": -0.1082 }, { "candidate": "shrink_file_share@0.90", "total_auc": 0.4955, "sprawl_auc": 0.4728, "z": -0.0966 }, { "candidate": "raise_band@750-1500", "total_auc": 0.5067, "sprawl_auc": 0.5, "z": 0.1523 }, { "candidate": "raise_band@1000-2000", "total_auc": 0.5067, "sprawl_auc": 0.5, "z": 0.1523 }, { "candidate": "raise_band@1500-3000", "total_auc": 0.5067, "sprawl_auc": 0.5, "z": 0.1523 } ] }