Cross-AUC averages per-domain AUCs with a polarization term from Wasserstein distance on score distributions to assess deepfake detector generalization under domain shift more realistically than isolated AUC.
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When AUC Misleads: Polarization-Aware Evaluation of Deepfake Detectors under Domain Shift
Cross-AUC averages per-domain AUCs with a polarization term from Wasserstein distance on score distributions to assess deepfake detector generalization under domain shift more realistically than isolated AUC.