Robust and Efficient Collaborative Learning

Fuente: arXiv
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Autores principales: Mrini, Abdellah El, Farhadkhan, Sadegh, Guerraoui, Rachid
Formato: Preprint
Publicado: 2025
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author Mrini, Abdellah El
Farhadkhan, Sadegh
Guerraoui, Rachid
author_facet Mrini, Abdellah El
Farhadkhan, Sadegh
Guerraoui, Rachid
contents Collaborative machine learning is challenged by training-time adversarial behaviors. Existing approaches to tolerate such behaviors either rely on a central server or induce high communication costs. We propose Robust Pull-based Epidemic Learning (RPEL), a novel, scalable collaborative approach to ensure robust learning despite adversaries. RPEL does not rely on any central server and, unlike traditional methods, where communication costs grow in $\mathcal{O}(n^2)$ with the number of nodes $n$, RPEL employs a pull-based epidemic-based communication strategy that scales in $\mathcal{O}(n \log n)$. By pulling model parameters from small random subsets of nodes, RPEL significantly lowers the number of required messages without compromising convergence guarantees, which hold with high probability. Empirical results demonstrate that RPEL maintains robustness in adversarial settings, competes with all-to-all communication accuracy, and scales efficiently across large networks.
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id arxiv_https___arxiv_org_abs_2510_08311
institution arXiv
publishDate 2025
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spellingShingle Robust and Efficient Collaborative Learning
Mrini, Abdellah El
Farhadkhan, Sadegh
Guerraoui, Rachid
Machine Learning
Collaborative machine learning is challenged by training-time adversarial behaviors. Existing approaches to tolerate such behaviors either rely on a central server or induce high communication costs. We propose Robust Pull-based Epidemic Learning (RPEL), a novel, scalable collaborative approach to ensure robust learning despite adversaries. RPEL does not rely on any central server and, unlike traditional methods, where communication costs grow in $\mathcal{O}(n^2)$ with the number of nodes $n$, RPEL employs a pull-based epidemic-based communication strategy that scales in $\mathcal{O}(n \log n)$. By pulling model parameters from small random subsets of nodes, RPEL significantly lowers the number of required messages without compromising convergence guarantees, which hold with high probability. Empirical results demonstrate that RPEL maintains robustness in adversarial settings, competes with all-to-all communication accuracy, and scales efficiently across large networks.
title Robust and Efficient Collaborative Learning
topic Machine Learning
url https://arxiv.org/abs/2510.08311