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How to Privately Tune Hyperparameters in Federated Learning? Insights from a Benchmark Study
Feb. 27, 2024, 5:11 a.m. | Natalija Mitic, Apostolos Pyrgelis, Sinem Sav
cs.CR updates on arXiv.org arxiv.org
Abstract: In this paper, we address the problem of privacy-preserving hyperparameter (HP) tuning for cross-silo federated learning (FL). We first perform a comprehensive measurement study that benchmarks various HP strategies suitable for FL. Our benchmarks show that the optimal parameters of the FL server, e.g., the learning rate, can be accurately and efficiently tuned based on the HPs found by each client on its local data. We demonstrate that HP averaging is suitable for iid settings, …
address arxiv benchmark benchmarks benchmark study cs.cr federated federated learning insights measurement privacy privately problem strategies study suitable
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