Accuracy-driven adaptive federated pruning and differential privacy method

Yang Chenga
Li Xiaohuia
Lan Jieb
Wang Yajuna
a. School of Electronics & Information Engineering, b. College of Science, Liaoning University of Technology, Jinzhou Liaoning 121001, China

Abstract

To address the high communication overhead caused by large model updates in federated learning, as well as the accuracy degradation and convergence fluctuation induced by differential privacy (DP) noise injection, this paper proposes an Accuracy-driven Adaptive Federated Pruning and Differential Privacy method (AAFDP) . On the server side, AAFDP constructs a performance feedback signal based on sliding average accuracy and adopts a staged “prune-then-perturb” workflow. Specifically, the method performs magnitude-based pruning on aggregated updates to form a sparse transmission structure, and injects Gaussian mechanism noise into the pruned updates during the DP stage. Meanwhile, the pruning ratio and noise multiplier are adaptively adjusted round by round according to the feedback signal. Experimental results on MNIST and CIFAR-10 show that, while maintaining high model accuracy and low loss, AAFDP reduces cumulative communication cost by about 33%–36% compared with dense transmission methods such as FedAvg, DP-FL, and APDP-FL. The proposed method achieves a favorable balance among model performance, training stability, and communication efficiency.

Foundation Support

国家自然科学基金资助项目(62203201)
辽宁省应用基础研究计划项目(2025JH2/101330118)
2024年辽宁省属本科高校基本科研业务费专项资金资助项目(LJZZ212410154025)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2026.01.0054
Publish at: Application Research of Computers Accepted Paper, Vol. 43, 2026 No. 10

Publish History

[2026-07-29] Accepted Paper

Cite This Article

杨程, 李晓会, 兰洁, 等. 精度驱动的自适应联邦剪枝与差分隐私方法 [J]. 计算机应用研究, 2026, 43 (10). (2026-07-30). https://doi.org/10.19734/j.issn.1001-3695.2026.01.0054. (Yang Cheng, Li Xiaohui, Lan Jie, et al. Accuracy-driven adaptive federated pruning and differential privacy method [J]. Application Research of Computers, 2026, 43 (10). (2026-07-30). https://doi.org/10.19734/j.issn.1001-3695.2026.01.0054. )

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  • Application Research of Computers Monthly Journal
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Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

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