ASMR: Angular Support for Malfunctioning Client Resilience in Federated Learning
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Abstract (arXiv)
Federated Learning (FL) allows the training of deep neural networks in a distributed and privacy-preserving manner. However, this concept suffers from malfunctioning updates sent by the attending clients that cause global model performance degradation. Reasons for this malfunctioning might be technical issues, disadvantageous training data, or malicious attacks. Most of the current defense mechanisms are meant to require impractical prerequisites like knowledge about the number of malfunctioning updates, which makes them unsuitable for real-world applications. To counteract these problems, we introduce a novel method called Angular Support for Malfunctioning Client Resilience (ASMR), that dynamically excludes malfunctioning clients based on their angular distance. Our novel method does not require any hyperparameters or knowledge about the number of malfunctioning clients. Our experiments showcase the detection capabilities of ASMR in an image classification task on a histopathological dataset, while also presenting findings on the significance of dynamically adapting decision boundaries.
Key facts. Cited by 1 paper in the map (data through 14 Oct 2026). Builds on 22 of its 43 references that are in the map. First posted on arXiv 4 Aug 2025.
Builds on
22 of 43 references.
References · 22
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10 more
- 2020Learning to Detect Malicious Clients for Robust Federated Learningcited by 88
- 2021Federated Learning: Opportunities and Challengescited by 84
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Citing papers per year: 2026: 1.
1 paper.