Communication-Efficient and Privacy-Adaptable Mechanism for Federated Learning

• URL: http://arxiv.org/abs/2501.12046v1
• Date: Tue, 21 Jan 2025 11:16:05 GMT
• Title: Communication-Efficient and Privacy-Adaptable Mechanism for Federated Learning
• Authors: Chih Wei Ling, Youqi Wu, Jiande Sun, Cheuk Ting Li, Linqi Song, Weitao Xu,
• Abstract summary: Training machine learning models on decentralized private data via federated learning (FL) poses two key challenges: communication efficiency and privacy protection. We introduce a novel approach called the Communication-Efficient and Privacy-Adaptable Mechanism (CEPAM), achieving both objectives simultaneously. We analyze the trade-offs among user privacy, global utility, and transmission rate of CEPAM by defining appropriate metrics for FL with differential privacy and compression.
• Score: 33.267664801299354
• License:
• Abstract: Training machine learning models on decentralized private data via federated learning (FL) poses two key challenges: communication efficiency and privacy protection. In this work, we address these challenges within the trusted aggregator model by introducing a novel approach called the Communication-Efficient and Privacy-Adaptable Mechanism (CEPAM), achieving both objectives simultaneously. In particular, CEPAM leverages the rejection-sampled universal quantizer (RSUQ), a construction of randomized vector quantizer whose resulting distortion is equivalent to a prescribed noise, such as Gaussian or Laplace noise, enabling joint differential privacy and compression. Moreover, we analyze the trade-offs among user privacy, global utility, and transmission rate of CEPAM by defining appropriate metrics for FL with differential privacy and compression. Our CEPAM provides the additional benefit of privacy adaptability, allowing clients and the server to customize privacy protection based on required accuracy and protection. We assess CEPAM's utility performance using MNIST dataset, demonstrating that CEPAM surpasses baseline models in terms of learning accuracy.

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