Differentially Private Bayesian Inference for Generalized Linear Models

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openAccess

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A4 Artikkeli konferenssijulkaisussa

Date

2021

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en

Pages

12
5838-5849

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Proceedings of the 38th International Conference on Machine Learning, Proceedings of Machine Learning Research, Volume 139

Abstract

Generalized linear models (GLMs) such as logistic regression are among the most widely used arms in data analyst's repertoire and often used on sensitive datasets. A large body of prior works that investigate GLMs under differential privacy (DP) constraints provide only private point estimates of the regression coefficients, and are not able to quantify parameter uncertainty. In this work, with logistic and Poisson regression as running examples, we introduce a generic noise-aware DP Bayesian inference method for a GLM at hand, given a noisy sum of summary statistics. Quantifying uncertainty allows us to determine which of the regression coefficients are statistically significantly different from zero. We provide a tight privacy analysis and experimentally demonstrate that the posteriors obtained from our model, while adhering to strong privacy guarantees, are close to the non-private posteriors.

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Citation

Kulkarni, T, Jälkö, J, Koskela, A, Kaski, S & Honkela, A 2021, Differentially Private Bayesian Inference for Generalized Linear Models . in M Meila & T Zhang (eds), Proceedings of the 38th International Conference on Machine Learning . Proceedings of Machine Learning Research, vol. 139, JMLR, pp. 5838-5849, International Conference on Machine Learning, Virtual, Online, 18/07/2021 . < http://proceedings.mlr.press/v139/kulkarni21a.html >