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Tian-Long Nan

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#machine learning Preprint Nov 2026

Logarithmic Regret for Alternating Mirror Descent

Alternating online mirror descent (AltOMD) is a simple learning rule for zero-sum games, which improves upon simultaneous OMD numerically and theoretically. Previous work obtained $O(T^{1/3})$ and $O(T^{1/5})$ regret bounds for AltOMD, by leveraging modified-energy-function-based analyses. However, settling whether Alt...

Tian-Long Nan, C. Kroer · 0 citations