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Virtual Homogeneity Learning: Defending against Data Heterogeneity in Federated Learning. (arXiv:2206.02465v2 [cs.LG] UPDATED)
June 27, 2022, 1:11 a.m. | Zhenheng Tang, Yonggang Zhang, Shaohuai Shi, Xin He, Bo Han, Xiaowen Chu
cs.LG updates on arXiv.org arxiv.org
In federated learning (FL), model performance typically suffers from client
drift induced by data heterogeneity, and mainstream works focus on correcting
client drift. We propose a different approach named virtual homogeneity
learning (VHL) to directly "rectify" the data heterogeneity. In particular, VHL
conducts FL with a virtual homogeneous dataset crafted to satisfy two
conditions: containing no private information and being separable. The virtual
dataset can be generated from pure noise shared across clients, aiming to
calibrate the features from the …
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