Sergul Aydore

Jun 13, 2024 | amazon.science | Shuai Tang |Zhiwei Wu |Sergul Aydore |Michael Kearns

Recently, diffusion models have become popular tools for image synthesis due to their high-quality outputs. However, like other large models, they may leak private information about their training data. Here, we demonstrate a privacy vulnerability of diffusion models through a membership inference (MI) attack, which aims to identify whether a target example belongs to the training set when given the trained diffusion model.

Jan 19, 2024 | amazon.science | Shuai Tang |Sergul Aydore |Michael Kearns |Aaron Thomas Roth

We revisit the problem of differentially private squared error linear regression. We observe that existing state- of-the-art methods are sensitive to the choice of hyperparameters — including the “clipping threshold” that cannot be set optimally in a data-independent way. We give a new algorithm for private linear regression based on gradient boosting.

Dec 13, 2023 | amazon.science | Zhiwei Wu |Shuai Tang |Sergul Aydore |Michael Kearns

Recently, diffusion models have demonstrated great potential for image synthesis due to their ability to generate high-quality synthetic data. However, when applied to sensitive data, privacy concerns have been raised about these models. In this paper, we evaluate the privacy risks of diffusion models through a membership inference (MI) attack, which aims to identify whether a target example is in the training set when given the trained diffusion model.

Nov 16, 2023 | amazon.science | Michael Kearns |Aaron Thomas Roth |Sergul Aydore |Shuai Tang

Aaron Roth is the Henry Salvatori Professor of Computer and Cognitive Science at the University of Pennsylvania and an Amazon Scholar. His research focuses on the algorithmic foundations of data privacy, algorithmic fairness, game theory, learning theory, and machine learning. Together with Cynthia Dwork, he is the author of the book The Algorithmic Foundations of Differential Privacy; together with Michael Kearns, he is the author of The Ethical Algorithm. Read more