AIBullisharXiv – CS AI · 7h ago7/10
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Geometry over Density: Few-Shot Cross-Domain OOD Detection
Researchers introduce UFCOD, a novel framework that enables out-of-distribution detection across arbitrary domains using a single pre-trained diffusion model and minimal inference-time samples. The approach achieves 93.7% average AUROC on cross-domain benchmarks with approximately 500× better sample efficiency than existing methods, requiring only ~100 unlabeled samples rather than 50k-163k training samples.