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- W4296831829 abstract "Federated Learning (FL) is vulnerable to model poisoning attacks that hurt the joint training global model by sending malicious updates. Existing defenses rely heavily on restrictions on clients’ model updates to defend against attacks. However, the global model can be attacked by elaborate malicious perturbation under defensive restriction due to the sensitivity of the model to perturbations, which leads the model to be vulnerable. Therefore, in this work, we investigate the defense against attacks from a novel perspective of the model stability towards perturbation on parameters. We propose a new method named Federated Learning with Model Jacobian Regularization (FLMJR) to enhance the robustness of FL. Considering prediction volatility of the model is determined by the model-output Jacobian, we reduce the Jacobian regularization to improve model stability towards model perturbations while maintaining the model’s accuracy. We conduct extensive experiments under both IID and NonIID settings to evaluate the defense against state-of-the-art model poisoning attacks, which demonstrates that our method not only has superior fidelity and robustness, but can also be easily integrated to further improve the robustness of existing server-based robust aggregation approaches (e.g., Fedavg, Trimean, Median, Bulyan, and FLTrust)." @default.
- W4296831829 created "2022-09-24" @default.
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- W4296831829 date "2022-01-01" @default.
- W4296831829 modified "2023-09-30" @default.
- W4296831829 title "FLMJR: Improving Robustness of Federated Learning via Model Stability" @default.
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- W4296831829 doi "https://doi.org/10.1007/978-3-031-17143-7_20" @default.
- W4296831829 hasPublicationYear "2022" @default.
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