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Jinseok Chung

2 accepted papers

2025

Sassha: Sharpness-aware Adaptive Second-order Optimization with Stable Hessian Approximation

ICML 2025poster

Approximate second-order optimization methods often exhibit poorer generalization compared to first-order approaches. In this work, we look into this issue through the lens of the loss landscape and find that existing second-order methods tend to converge to sharper minima compared to SGD. In respo…