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Distributed Dual Coordinate Ascent with Imbalanced Data on a General Tree Network
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Distributed Dual Coordinate Ascent with Imbalanced Data on a General Tree Network

Myung Cho, Lifeng Lai and Weiyu Xu
ArXiv.org
Cornell University
08/28/2023
DOI: 10.48550/arxiv.2308.14783
url
https://doi.org/10.48550/arxiv.2308.14783View
Preprint (Author's original)This preprint has not been evaluated by subject experts through peer review. Preprints may undergo extensive changes and/or become peer-reviewed journal articles. Open Access

Abstract

In this paper, we investigate the impact of imbalanced data on the convergence of distributed dual coordinate ascent in a tree network for solving an empirical loss minimization problem in distributed machine learning. To address this issue, we propose a method called delayed generalized distributed dual coordinate ascent that takes into account the information of the imbalanced data, and provide the analysis of the proposed algorithm. Numerical experiments confirm the effectiveness of our proposed method in improving the convergence speed of distributed dual coordinate ascent in a tree network.

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