Model Attribution on Section 5.2 corpus 6 AIs x 3 domains (sample-level leave-one-out)
51.36-way LOO AccuracyReference-anchored (patch_mean, ssim)
Evaluation results
| Method | Links | ||
|---|---|---|---|
| Reference-anchored (patch_mean, ssim)Reference=yes, Features=patch_mean, ssim, Evaluation protocol=sample-level leave-one-out nearest-centroid, Resampling=2,000-iteration cluster bootstrap2026.06 | 51.3 | 0.493 | |
| PRISM-style (DINOv2 CLS, blind)Reference=no, Backbone=DINOv2 ViT-B/14 CLS, Evaluation protocol=sample-level leave-one-out nearest-centroid, Resampling=2,000-iteration cluster bootstrap2026.06 | 37.3 | 0.364 |