AI RESEARCH
TopoGeoScore: A Self-Supervised Source-Only Geometric Framework for OOD Checkpoint Selection
arXiv CS.LG
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ArXi:2605.08870v1 Announce Type: new Out-of-distribution (OOD) robustness is difficult to diagnose when target-domain labels are unavailable. We consider a restrictive source-only variant of unsupervised accuracy estimation: selecting robust checkpoints using only source-domain representations, with no target samples or target labels. We propose \textbf{TopoGeoScore}, a source-only geometric scorer for label-free OOD checkpoint selection.