The Discrete Gaussian for Differential Privacy
NIPS 2020(2020)
摘要
We show how to efficiently provide differentially private answers to counting queries (or integer-valued low-sensitivity queries) by adding discrete Gaussian noise, with essentially the same privacy and accuracy as the continuous Gaussian. The use of a discrete distribution is necessary in practice, as finite computers cannot represent samples from continuous distributions and numerical errors may destroy the privacy guarantee.
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关键词
differential privacy,algorithms,privacy mechanisms
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