The Impact of Generalization Techniques on the Interplay Among Privacy, Utility, and Fairness in Image Classification

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Main Authors: Hassanpour, Ahmad, Zarei, Amir, Mallat, Khawla, de Oliveira, Anderson Santana, Yang, Bian
Format: Preprint
Published: 2024
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author Hassanpour, Ahmad
Zarei, Amir
Mallat, Khawla
de Oliveira, Anderson Santana
Yang, Bian
author_facet Hassanpour, Ahmad
Zarei, Amir
Mallat, Khawla
de Oliveira, Anderson Santana
Yang, Bian
contents This study investigates the trade-offs between fairness, privacy, and utility in image classification using machine learning (ML). Recent research suggests that generalization techniques can improve the balance between privacy and utility. One focus of this work is sharpness-aware training (SAT) and its integration with differential privacy (DP-SAT) to further improve this balance. Additionally, we examine fairness in both private and non-private learning models trained on datasets with synthetic and real-world biases. We also measure the privacy risks involved in these scenarios by performing membership inference attacks (MIAs) and explore the consequences of eliminating high-privacy risk samples, termed outliers. Moreover, we introduce a new metric, named \emph{harmonic score}, which combines accuracy, privacy, and fairness into a single measure. Through empirical analysis using generalization techniques, we achieve an accuracy of 81.11\% under $(8, 10^{-5})$-DP on CIFAR-10, surpassing the 79.5\% reported by De et al. (2022). Moreover, our experiments show that memorization of training samples can begin before the overfitting point, and generalization techniques do not guarantee the prevention of this memorization. Our analysis of synthetic biases shows that generalization techniques can amplify model bias in both private and non-private models. Additionally, our results indicate that increased bias in training data leads to reduced accuracy, greater vulnerability to privacy attacks, and higher model bias. We validate these findings with the CelebA dataset, demonstrating that similar trends persist with real-world attribute imbalances. Finally, our experiments show that removing outlier data decreases accuracy and further amplifies model bias.
format Preprint
id arxiv_https___arxiv_org_abs_2412_11951
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle The Impact of Generalization Techniques on the Interplay Among Privacy, Utility, and Fairness in Image Classification
Hassanpour, Ahmad
Zarei, Amir
Mallat, Khawla
de Oliveira, Anderson Santana
Yang, Bian
Machine Learning
Artificial Intelligence
This study investigates the trade-offs between fairness, privacy, and utility in image classification using machine learning (ML). Recent research suggests that generalization techniques can improve the balance between privacy and utility. One focus of this work is sharpness-aware training (SAT) and its integration with differential privacy (DP-SAT) to further improve this balance. Additionally, we examine fairness in both private and non-private learning models trained on datasets with synthetic and real-world biases. We also measure the privacy risks involved in these scenarios by performing membership inference attacks (MIAs) and explore the consequences of eliminating high-privacy risk samples, termed outliers. Moreover, we introduce a new metric, named \emph{harmonic score}, which combines accuracy, privacy, and fairness into a single measure. Through empirical analysis using generalization techniques, we achieve an accuracy of 81.11\% under $(8, 10^{-5})$-DP on CIFAR-10, surpassing the 79.5\% reported by De et al. (2022). Moreover, our experiments show that memorization of training samples can begin before the overfitting point, and generalization techniques do not guarantee the prevention of this memorization. Our analysis of synthetic biases shows that generalization techniques can amplify model bias in both private and non-private models. Additionally, our results indicate that increased bias in training data leads to reduced accuracy, greater vulnerability to privacy attacks, and higher model bias. We validate these findings with the CelebA dataset, demonstrating that similar trends persist with real-world attribute imbalances. Finally, our experiments show that removing outlier data decreases accuracy and further amplifies model bias.
title The Impact of Generalization Techniques on the Interplay Among Privacy, Utility, and Fairness in Image Classification
topic Machine Learning
Artificial Intelligence
url https://arxiv.org/abs/2412.11951