Paper 2026/2075 Original: eprint.iacr.org/2026/2075 ↗

Bounding the Excess Risk for Linear Models Trained on Marginal-Preserving, Differentially-Private, Synthetic Data

Yvonne Zhou
Mingyu Liang
Ivan Brugere
Danial Dervovic
Antigoni Polychroniadou
Min Wu
Dana Dachman-Soled
Abstract

The growing use of machine learning (ML) has raised concerns that an ML model may reveal private information about an individual who has contributed to the training dataset. To prevent leakage of sensitive data, we consider using differentially-private (DP), synthetic training data instead of real training data to train an ML model. A key desirable property of synthetic data is its ability to preserve the low-order marginals of the original distribution. Our main contribution comprises novel upper and lower bounds on the excess empirical risk of linear models trained on such synthetic data, for continuous and Lipschitz loss functions. We perform extensive experimentation alongside our theoretical results

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Publication info
Preprint.
History
2026-09-17: last updated
2026-09-17: published
Short URL
https://ia.cr/2026/2075
License
https://creativecommons.org/licenses/by-nc/4.0/

BibTeX

@misc{cryptoeprint:2026/2075,
      author = {Yvonne Zhou and Mingyu Liang and Ivan Brugere and Danial Dervovic and Antigoni Polychroniadou and Min Wu and Dana Dachman-Soled},
      title = {Bounding the Excess Risk for Linear Models Trained on Marginal-Preserving, Differentially-Private, Synthetic Data},
      howpublished = {Cryptology {ePrint} Archive, Paper 2026/2075},
      year = {2026},
      url = {https://eprint.iacr.org/2026/2075}
}
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