Sharpness, a measure of loss sensitivity to weight perturbations, correlates with speech deepfake detection error on unseen data, and Sharpness-Aware Minimization reduces both sharpness and error in most settings.
This study is partially supported by JST AIP Acceleration Research (JPMJCR24U3)
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From Sharpness to Better Generalization for Speech Deepfake Detection
Sharpness, a measure of loss sensitivity to weight perturbations, correlates with speech deepfake detection error on unseen data, and Sharpness-Aware Minimization reduces both sharpness and error in most settings.