Assessing the Impact of Image Dataset Features on Privacy-Preserving Machine Learning

• URL: http://arxiv.org/abs/2409.01329v1
• Date: Mon, 2 Sep 2024 15:30:27 GMT
• Title: Assessing the Impact of Image Dataset Features on Privacy-Preserving Machine Learning
• Authors: Lucas Lange, Maurice-Maximilian Heykeroth, Erhard Rahm,
• Abstract summary: This study identifies image dataset characteristics that affect the utility and vulnerability of private and non-private Convolutional Neural Network (CNN) models. We find that imbalanced datasets increase vulnerability in minority classes, but DP mitigates this issue.
• Score: 1.3604778572442302
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Machine Learning (ML) is crucial in many sectors, including computer vision. However, ML models trained on sensitive data face security challenges, as they can be attacked and leak information. Privacy-Preserving Machine Learning (PPML) addresses this by using Differential Privacy (DP) to balance utility and privacy. This study identifies image dataset characteristics that affect the utility and vulnerability of private and non-private Convolutional Neural Network (CNN) models. Through analyzing multiple datasets and privacy budgets, we find that imbalanced datasets increase vulnerability in minority classes, but DP mitigates this issue. Datasets with fewer classes improve both model utility and privacy, while high entropy or low Fisher Discriminant Ratio (FDR) datasets deteriorate the utility-privacy trade-off. These insights offer valuable guidance for practitioners and researchers in estimating and optimizing the utility-privacy trade-off in image datasets, helping to inform data and privacy modifications for better outcomes based on dataset characteristics.

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