Web: http://arxiv.org/abs/2112.00828

Jan. 7, 2022, 2:20 a.m. | Palak Jain, Sofya Raskhodnikova, Satchit Sivakumar, Adam Smith

cs.CR updates on arXiv.org arxiv.org

We study the accuracy of differentially private mechanisms in the continual
release model. A continual release mechanism receives a sensitive dataset as a
stream of $T$ inputs and produces, after receiving each input, an accurate
output on the obtained inputs.In contrast, a batch algorithm receives the data
as one batch and produces a single output.


We provide the first strong lower bounds on the error of continual release
mechanisms. In particular, for two fundamental problems that are widely studied
and …

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