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Distributed DP-Helmet: Scalable Differentially Private Non-interactive Averaging of Single Layers
May 15, 2024, 4:11 a.m. | Moritz Kirschte, Sebastian Meiser, Saman Ardalan, Esfandiar Mohammadi
cs.CR updates on arXiv.org arxiv.org
Abstract: In this work, we propose two differentially private, non-interactive, distributed learning algorithms in a framework called Distributed DP-Helmet. Our framework is based on what we coin blind averaging: each user locally learns and noises a model and all users then jointly compute the mean of their models via a secure summation protocol. We provide experimental evidence that blind averaging for SVMs and single Softmax-layer (Softmax-SLP) can have a strong utility-privacy tradeoff: we reach an accuracy …
algorithms arxiv blind called compute cs.cr cs.lg distributed framework helmet locally non private single stat.ml work
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