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• W4386439311 abstract "Recently, federated learning (FL), which replaces data sharing with model sharing, has emerged as an efficient and privacy-friendly machine learning (ML) paradigm. One of the main challenges in FL is the huge communication cost for model aggregation. Many compression/quantization schemes have been proposed to reduce the communication cost for model aggregation. However, the following question remains unanswered: What is the fundamental trade-off between the communication cost and the FL convergence performance? In this paper, we manage to answer this question. Specifically, we first put forth a general framework for model aggregation performance analysis based on the rate-distortion theory. Under the proposed analysis framework, we derive an inner bound of the rate-distortion region of model aggregation. We then conduct an FL convergence analysis to connect the aggregation distortion and the FL convergence performance. We formulate an aggregation distortion minimization problem to improve the FL convergence performance. Two algorithms are developed to solve the above problem. Numerical results on aggregation distortion, convergence performance, and communication cost demonstrate that the baseline model aggregation schemes still have great potential for further improvement." @default.
• W4386439311 created "2023-09-06" @default.
• W4386439311 creator A5011615398 @default.
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• W4386439311 date "2023-08-01" @default.
• W4386439311 modified "2023-10-03" @default.
• W4386439311 title "Federated Learning With Lossy Distributed Source Coding: Analysis and Optimization" @default.
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• W4386439311 doi "https://doi.org/10.1109/tcomm.2023.3277882" @default.
• W4386439311 hasPublicationYear "2023" @default.
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