arXiv Machine Learning By Tanapat Ratchatorn, Masayuki Tanaka

EMASAM: a Computationally Efficient Sharpness-Aware Minimization via EMA-Guided Perturbations

Read the original on arXiv Machine Learning →

arXiv:2608. 15105v1 Announce Type: new Abstract: Recent progress in optimization research has highlighted the sharpness of the loss landscape as a key factor in narrowing the generalization gap.

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Sharpness-Aware Minimization (SAM) improves generalization by seeking parameters whose loss is robust to local adversarial perturbations, but the quantitative mechanism underlying its implicit bias toward flat minima remains unclear. In particular, the perturbation radius $ρ$ is typically treated as an isolated tuning parameter, despite defining the neighborhood in which SAM measures sharpness.