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Sofya Raskhodnikova

3 accepted papers

2023

Counting Distinct Elements in the Turnstile Model with Differential Privacy under Continual Observation

NeurIPS 2023poster

Privacy is a central challenge for systems that learn from sensitive data sets, especially when a system's outputs must be continuously updated to reflect changing data. We consider the achievable error for differentially private continual release of a basic statistic---the number of distinct items…

Cited by 8SourcePDFScholar
2023

The Price of Differential Privacy under Continual Observation

ICML 2023oral

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 output that is accurate for all the inputs received so far. We provide the firs…

Cited by 64SourcePDFScholar
2021

Differentially Private Sampling from Distributions

NeurIPS 2021poster

We initiate an investigation of private sampling from distributions. Given a dataset with $n$ independent observations from an unknown distribution $P$, a sampling algorithm must output a single observation from a distribution that is close in total variation distance to $P$ while satisfying differ…

Cited by 12SourcePDFScholar