mlsanityData to 7 Oct 2026

HeteroSwitch: Characterizing and Taming System-Induced Data Heterogeneity in Federated Learning

arXiv 2403.04207 ↗First posted 7 Mar 2024cs.LG cs.DCcited by 1

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Abstract (arXiv)

Federated Learning (FL) is a practical approach to train deep learning models collaboratively across user-end devices, protecting user privacy by retaining raw data on-device. In FL, participating user-end devices are highly fragmented in terms of hardware and software configurations. Such fragmentation introduces a new type of data heterogeneity in FL, namely textitsystem-induced data heterogeneity, as each device generates distinct data depending on its hardware and software configurations. In this paper, we first characterize the impact of system-induced data heterogeneity on FL model performance. We collect a dataset using heterogeneous devices with variations across vendors and performance tiers. By using this dataset, we demonstrate that textitsystem-induced data heterogeneity negatively impacts accuracy, and deteriorates fairness and domain generalization problems in FL. To address these challenges, we propose HeteroSwitch, which adaptively adopts generalization techniques (i.e., ISP transformation and SWAD) depending on the level of bias caused by varying HW and SW configurations. In our evaluation with a realistic FL dataset (FLAIR), HeteroSwitch reduces the variance of averaged precision by 6.3% across device types.

Key facts. Cited by 1 paper in the map (data through 7 Oct 2026). Builds on 33 of its 61 references that are in the map. First posted on arXiv 7 Mar 2024.

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33 of 61 references.

References · 33

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21 more
  1. 2021SWAD: Domain Generalization by Seeking Flat Minimacited by 431
  2. 2019Domain Generalization via Model-Agnostic Learning of Semantic Featurescited by 405
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  21. 2022FEL: High Capacity Learning for Recommendation and Ranking via Federated Ensemble Learningcited by 4

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