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Communication efficient privacy-preserving distributed optimization using adaptive differential quantization
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DOI：10.1016/j.sigpro.2022.108456.png)
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摘要
En 中文
A B S T R A C T Privacy issues and communication cost are both major concerns in distributed optimization in networks. There is often a trade-off between them because the encryption methods used for privacy-preservation often require expensive communication overhead. To address these issues, we, in this paper, propose a quantization-based approach to achieve both communication efficient and privacy-preserving solutions in the context of distributed optimization. By deploying an adaptive differential quantization scheme, we allow each node in the network to achieve its optimum solution with a low communication cost while keeping its private data unrevealed. Additionally, the proposed approach is general and can be applied in various distributed optimization methods, such as the primal-dual method of multipliers (PDMM) and the alternating direction method of multipliers (ADMM). We consider two widely used adversary models, passive and eavesdropping, and investigate the properties of the proposed approach using different ap-plications and demonstrate its superior performance compared to existing privacy-preserving approaches in terms of both accuracy and communication cost.(c) 2022 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license ( http://creativecommons.org/licenses/by/4.0/ )
Keyword:
Distributed optimization
Quantization
Communication cost
Privacy
Information-theoretic
ADMM
PDMM
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3.6
论文数:
10.0K
被引数:
1.7W
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