Fed-AugMix: Balancing Privacy and Utility via Data Augmentation

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Detalles Bibliográficos
Publicado en:	arXiv.org (Dec 18, 2024), p. n/a
Autor principal:	Li, Haoyang
Otros Autores:	Chen, Wei, Zhang, Xiaojin
Publicado:	Cornell University Library, arXiv.org
Materias:	Distortion Data augmentation Algorithms Controllability Performance degradation Privacy Machine learning Federated learning Leakage Tradeoffs Stability augmentation
Acceso en línea:	Citation/Abstract Full text outside of ProQuest
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Descripción
Resumen:	Gradient leakage attacks pose a significant threat to the privacy guarantees of federated learning. While distortion-based protection mechanisms are commonly employed to mitigate this issue, they often lead to notable performance degradation. Existing methods struggle to preserve model performance while ensuring privacy. To address this challenge, we propose a novel data augmentation-based framework designed to achieve a favorable privacy-utility trade-off, with the potential to enhance model performance in certain cases. Our framework incorporates the AugMix algorithm at the client level, enabling data augmentation with controllable severity. By integrating the Jensen-Shannon divergence into the loss function, we embed the distortion introduced by AugMix into the model gradients, effectively safeguarding privacy against deep leakage attacks. Moreover, the JS divergence promotes model consistency across different augmentations of the same image, enhancing both robustness and performance. Extensive experiments on benchmark datasets demonstrate the effectiveness and stability of our method in protecting privacy. Furthermore, our approach maintains, and in some cases improves, model performance, showcasing its ability to achieve a robust privacy-utility trade-off.
ISSN:	2331-8422
Fuente:	Engineering Database