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Main Authors: Wang, Zhiqiang, Yu, Xinyue, Huang, Qianli, Gong, Yongguang
Format: Preprint
Published: 2024
Subjects:
Online Access:https://arxiv.org/abs/2408.08909
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author Wang, Zhiqiang
Yu, Xinyue
Huang, Qianli
Gong, Yongguang
author_facet Wang, Zhiqiang
Yu, Xinyue
Huang, Qianli
Gong, Yongguang
contents Differential privacy is one of the methods to solve the problem of privacy protection in federated learning. Setting the same privacy budget for each round will result in reduced accuracy in training. The existing methods of the adjustment of privacy budget consider fewer influencing factors and tend to ignore the boundaries, resulting in unreasonable privacy budgets. Therefore, we proposed an adaptive differential privacy method based on federated learning. The method sets the adjustment coefficient and scoring function according to accuracy, loss, training rounds, and the number of datasets and clients. And the privacy budget is adjusted based on them. Then the local model update is processed according to the scaling factor and the noise. Fi-nally, the server aggregates the noised local model update and distributes the noised global model. The range of parameters and the privacy of the method are analyzed. Through the experimental evaluation, it can reduce the privacy budget by about 16%, while the accuracy remains roughly the same.
format Preprint
id arxiv_https___arxiv_org_abs_2408_08909
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle An Adaptive Differential Privacy Method Based on Federated Learning
Wang, Zhiqiang
Yu, Xinyue
Huang, Qianli
Gong, Yongguang
Cryptography and Security
Artificial Intelligence
Distributed, Parallel, and Cluster Computing
Differential privacy is one of the methods to solve the problem of privacy protection in federated learning. Setting the same privacy budget for each round will result in reduced accuracy in training. The existing methods of the adjustment of privacy budget consider fewer influencing factors and tend to ignore the boundaries, resulting in unreasonable privacy budgets. Therefore, we proposed an adaptive differential privacy method based on federated learning. The method sets the adjustment coefficient and scoring function according to accuracy, loss, training rounds, and the number of datasets and clients. And the privacy budget is adjusted based on them. Then the local model update is processed according to the scaling factor and the noise. Fi-nally, the server aggregates the noised local model update and distributes the noised global model. The range of parameters and the privacy of the method are analyzed. Through the experimental evaluation, it can reduce the privacy budget by about 16%, while the accuracy remains roughly the same.
title An Adaptive Differential Privacy Method Based on Federated Learning
topic Cryptography and Security
Artificial Intelligence
Distributed, Parallel, and Cluster Computing
url https://arxiv.org/abs/2408.08909