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Fast Decentralized Gradient Tracking for Federated Minimax Optimization with Local Updates
May 9, 2024, 4:41 a.m. | Chris Junchi Li
cs.LG updates on arXiv.org arxiv.org
Abstract: Federated learning (FL) for minimax optimization has emerged as a powerful paradigm for training models across distributed nodes/clients while preserving data privacy and model robustness on data heterogeneity. In this work, we delve into the decentralized implementation of federated minimax optimization by proposing \texttt{K-GT-Minimax}, a novel decentralized minimax optimization algorithm that combines local updates and gradient tracking techniques. Our analysis showcases the algorithm's communication efficiency and convergence rate for nonconvex-strongly-concave (NC-SC) minimax optimization, demonstrating a …
abstract arxiv cs.dc cs.lg data data privacy decentralized distributed federated learning gradient implementation minimax model robustness nodes optimization paradigm privacy robustness stat.ml tracking training training models type updates while work
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