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Quantized Hierarchical Federated Learning: A Robust Approach to Statistical Heterogeneity
March 5, 2024, 2:42 p.m. | Seyed Mohammad Azimi-Abarghouyi, Viktoria Fodor
cs.LG updates on arXiv.org arxiv.org
Abstract: This paper presents a novel hierarchical federated learning algorithm within multiple sets that incorporates quantization for communication-efficiency and demonstrates resilience to statistical heterogeneity. Unlike conventional hierarchical federated learning algorithms, our approach combines gradient aggregation in intra-set iterations with model aggregation in inter-set iterations. We offer a comprehensive analytical framework to evaluate its optimality gap and convergence rate, comparing these aspects with those of conventional algorithms. Additionally, we develop a problem formulation to derive optimal system …
abstract aggregation algorithm algorithms arxiv communication cs.it cs.lg efficiency federated learning gradient hierarchical math.it multiple novel paper quantization resilience robust set statistical type
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