Author

Heng Zhang

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#machine learning Preprint Sep 2026

ZO-COSMO: Index-Free One-Hop Mixing for Decentralized Zeroth-Order Optimization

A sharp contraction-per-scalar bound within the matching class and convergence guarantees for the core and sparse-momentum updates are derived for the core and sparse-momentum updates.

Sheng-Jun Zhang, Ting Liu, Heng Zhang et al. · 0 citations