Have Your Cake and Eat It Too: Toward Efficient and Accurate Split Federated Learning

• URL: http://arxiv.org/abs/2311.13163v2
• Date: Mon, 8 Apr 2024 07:05:14 GMT
• Title: Have Your Cake and Eat It Too: Toward Efficient and Accurate Split Federated Learning
• Authors: Dengke Yan, Ming Hu, Zeke Xia, Yanxin Yang, Jun Xia, Xiaofei Xie, Mingsong Chen,
• Abstract summary: Split Federated Learning (SFL) is promising in AIoT systems. SFL suffers from the challenges of low inference accuracy and low efficiency. This paper presents a novel SFL approach, named Sliding Split Federated Learning (S$2$FL)
• Score: 25.47111107054497
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Due to its advantages in resource constraint scenarios, Split Federated Learning (SFL) is promising in AIoT systems. However, due to data heterogeneity and stragglers, SFL suffers from the challenges of low inference accuracy and low efficiency. To address these issues, this paper presents a novel SFL approach, named Sliding Split Federated Learning (S$^2$FL), which adopts an adaptive sliding model split strategy and a data balance-based training mechanism. By dynamically dispatching different model portions to AIoT devices according to their computing capability, S$^2$FL can alleviate the low training efficiency caused by stragglers. By combining features uploaded by devices with different data distributions to generate multiple larger batches with a uniform distribution for back-propagation, S$^2$FL can alleviate the performance degradation caused by data heterogeneity. Experimental results demonstrate that, compared to conventional SFL, S$^2$FL can achieve up to 16.5\% inference accuracy improvement and 3.54X training acceleration.

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