Inference With Combining Rules From Multiple Differentially Private Synthetic Datasets

Fuente: arXiv
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Autores principales: Nombo, Leila, Charest, Anne-Sophie
Formato: Preprint
Publicado: 2024
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author Nombo, Leila
Charest, Anne-Sophie
author_facet Nombo, Leila
Charest, Anne-Sophie
contents Differential privacy (DP) has been accepted as a rigorous criterion for measuring the privacy protection offered by random mechanisms used to obtain statistics or, as we will study here, synthetic datasets from confidential data. Methods to generate such datasets are increasingly numerous, using varied tools including Bayesian models, deep neural networks and copulas. However, little is still known about how to properly perform statistical inference with these differentially private synthetic (DIPS) datasets. The challenge is for the analyses to take into account the variability from the synthetic data generation in addition to the usual sampling variability. A similar challenge also occurs when missing data is imputed before analysis, and statisticians have developed appropriate inference procedures for this case, which we tend extended to the case of synthetic datasets for privacy. In this work, we study the applicability of these procedures, based on combining rules, to the analysis of DIPS datasets. Our empirical experiments show that the proposed combining rules may offer accurate inference in certain contexts, but not in all cases.
format Preprint
id arxiv_https___arxiv_org_abs_2405_04769
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Inference With Combining Rules From Multiple Differentially Private Synthetic Datasets
Nombo, Leila
Charest, Anne-Sophie
Methodology
Cryptography and Security
Machine Learning
Applications
Differential privacy (DP) has been accepted as a rigorous criterion for measuring the privacy protection offered by random mechanisms used to obtain statistics or, as we will study here, synthetic datasets from confidential data. Methods to generate such datasets are increasingly numerous, using varied tools including Bayesian models, deep neural networks and copulas. However, little is still known about how to properly perform statistical inference with these differentially private synthetic (DIPS) datasets. The challenge is for the analyses to take into account the variability from the synthetic data generation in addition to the usual sampling variability. A similar challenge also occurs when missing data is imputed before analysis, and statisticians have developed appropriate inference procedures for this case, which we tend extended to the case of synthetic datasets for privacy. In this work, we study the applicability of these procedures, based on combining rules, to the analysis of DIPS datasets. Our empirical experiments show that the proposed combining rules may offer accurate inference in certain contexts, but not in all cases.
title Inference With Combining Rules From Multiple Differentially Private Synthetic Datasets
topic Methodology
Cryptography and Security
Machine Learning
Applications
url https://arxiv.org/abs/2405.04769