Towards hyperparameter-free optimization with differential privacy

Fuente: arXiv
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Hauptverfasser: Bu, Zhiqi, Liu, Ruixuan
Format: Preprint
Veröffentlicht: 2025
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author Bu, Zhiqi
Liu, Ruixuan
author_facet Bu, Zhiqi
Liu, Ruixuan
contents Differential privacy (DP) is a privacy-preserving paradigm that protects the training data when training deep learning models. Critically, the performance of models is determined by the training hyperparameters, especially those of the learning rate schedule, thus requiring fine-grained hyperparameter tuning on the data. In practice, it is common to tune the learning rate hyperparameters through the grid search that (1) is computationally expensive as multiple runs are needed, and (2) increases the risk of data leakage as the selection of hyperparameters is data-dependent. In this work, we adapt the automatic learning rate schedule to DP optimization for any models and optimizers, so as to significantly mitigate or even eliminate the cost of hyperparameter tuning when applied together with automatic per-sample gradient clipping. Our hyperparameter-free DP optimization is almost as computationally efficient as the standard non-DP optimization, and achieves state-of-the-art DP performance on various language and vision tasks.
format Preprint
id arxiv_https___arxiv_org_abs_2503_00703
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Towards hyperparameter-free optimization with differential privacy
Bu, Zhiqi
Liu, Ruixuan
Machine Learning
Computation and Language
Cryptography and Security
Computer Vision and Pattern Recognition
Differential privacy (DP) is a privacy-preserving paradigm that protects the training data when training deep learning models. Critically, the performance of models is determined by the training hyperparameters, especially those of the learning rate schedule, thus requiring fine-grained hyperparameter tuning on the data. In practice, it is common to tune the learning rate hyperparameters through the grid search that (1) is computationally expensive as multiple runs are needed, and (2) increases the risk of data leakage as the selection of hyperparameters is data-dependent. In this work, we adapt the automatic learning rate schedule to DP optimization for any models and optimizers, so as to significantly mitigate or even eliminate the cost of hyperparameter tuning when applied together with automatic per-sample gradient clipping. Our hyperparameter-free DP optimization is almost as computationally efficient as the standard non-DP optimization, and achieves state-of-the-art DP performance on various language and vision tasks.
title Towards hyperparameter-free optimization with differential privacy
topic Machine Learning
Computation and Language
Cryptography and Security
Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2503.00703