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Differentially private (DP) image synthesis aims to generate artificial images that retain the properties of sensitive images while protecting the privacy of individual images within the dataset. Despite recent advancements, we find that…

Cryptography and Security · Computer Science 2025-09-01 Chen Gong , Kecen Li , Zinan Lin , Tianhao Wang

Differentially private (DP) image synthesis aims to generate synthetic images from a sensitive dataset, alleviating the privacy leakage concerns of organizations sharing and utilizing synthetic images. Although previous methods have…

Cryptography and Security · Computer Science 2025-06-24 Kecen Li , Chen Gong , Xiaochen Li , Yuzhong Zhao , Xinwen Hou , Tianhao Wang

Programmatically generated synthetic data has been used in differential private training for classification to enhance performance without privacy leakage. However, as the synthetic data is generated from a random process, the distribution…

Machine Learning · Computer Science 2024-12-16 Yujin Choi , Jinseong Park , Junyoung Byun , Jaewook Lee

Differentially private synthetic data is a promising alternative for sensitive data release. Many differentially private generative models have been proposed in the literature. Unfortunately, they all suffer from the low utility of the…

Computer Vision and Pattern Recognition · Computer Science 2023-04-25 Chih-Hsun Lin , Chia-Yi Hsu , Chia-Mu Yu , Yang Cao , Chun-Ying Huang

Deep neural networks often use large, high-quality datasets to achieve high performance on many machine learning tasks. When training involves potentially sensitive data, this process can raise privacy concerns, as large models have been…

Machine Learning · Computer Science 2025-06-23 Felix Zhou , Samson Zhou , Vahab Mirrokni , Alessandro Epasto , Vincent Cohen-Addad

Generating high fidelity, differentially private (DP) synthetic images offers a promising route to share and analyze sensitive visual data without compromising individual privacy. However, existing DP image synthesis methods struggle to…

Computer Vision and Pattern Recognition · Computer Science 2025-10-28 Haoxiang Wang , Zinan Lin , Da Yu , Huishuai Zhang

As deep learning-based, data-driven information extraction systems become increasingly integrated into modern document processing workflows, one primary concern is the risk of malicious leakage of sensitive private data from these systems.…

Cryptography and Security · Computer Science 2025-08-07 Saifullah Saifullah , Stefan Agne , Andreas Dengel , Sheraz Ahmed

The integration of Differential Privacy (DP) with diffusion models (DMs) presents a promising yet challenging frontier, particularly due to the substantial memorization capabilities of DMs that pose significant privacy risks. Differential…

Computer Vision and Pattern Recognition · Computer Science 2024-06-04 Yu-Lin Tsai , Yizhe Li , Zekai Chen , Po-Yu Chen , Chia-Mu Yu , Xuebin Ren , Francois Buet-Golfouse

In differential privacy (DP), a challenging problem is to generate synthetic datasets that efficiently capture the useful information in the private data. The synthetic dataset enables any task to be done without privacy concern and…

Cryptography and Security · Computer Science 2021-01-01 Zhikun Zhang , Tianhao Wang , Ninghui Li , Jean Honorio , Michael Backes , Shibo He , Jiming Chen , Yang Zhang

While modern machine learning models rely on increasingly large training datasets, data is often limited in privacy-sensitive domains. Generative models trained with differential privacy (DP) on sensitive data can sidestep this challenge,…

Machine Learning · Statistics 2024-01-02 Tim Dockhorn , Tianshi Cao , Arash Vahdat , Karsten Kreis

Differentially private training algorithms like DP-SGD protect sensitive training data by ensuring that trained models do not reveal private information. An alternative approach, which this paper studies, is to use a sensitive dataset to…

Machine Learning · Computer Science 2024-01-12 Alexey Kurakin , Natalia Ponomareva , Umar Syed , Liam MacDermed , Andreas Terzis

We address the challenge of ensuring differential privacy (DP) guarantees in training deep retrieval systems. Training these systems often involves the use of contrastive-style losses, which are typically non-per-example decomposable,…

Computation and Language · Computer Science 2024-05-24 Aldo Gael Carranza , Rezsa Farahani , Natalia Ponomareva , Alex Kurakin , Matthew Jagielski , Milad Nasr

Modern machine learning models heavily rely on large datasets that often include sensitive and private information, raising serious privacy concerns. Differentially private (DP) data generation offers a solution by creating synthetic…

Computer Vision and Pattern Recognition · Computer Science 2025-08-05 Runkai Zheng , Vishnu Asutosh Dasu , Yinong Oliver Wang , Haohan Wang , Fernando De la Torre

Large language models (LLMs) have presented outstanding performance in code generation and completion. However, fine-tuning these models on private datasets can raise privacy and proprietary concerns, such as the leakage of sensitive…

Cryptography and Security · Computer Science 2026-01-16 Zheng Liu , Chen Gong , Terry Yue Zhuo , Kecen Li , Weichen Yu , Matt Fredrikson , Tianhao Wang

Training even moderately-sized generative models with differentially-private stochastic gradient descent (DP-SGD) is difficult: the required level of noise for reasonable levels of privacy is simply too large. We advocate instead building…

Machine Learning · Statistics 2023-07-21 Fredrik Harder , Milad Jalali Asadabadi , Danica J. Sutherland , Mijung Park

Differentially private data generation techniques have become a promising solution to the data privacy challenge -- it enables sharing of data while complying with rigorous privacy guarantees, which is essential for scientific progress in…

Cryptography and Security · Computer Science 2022-11-09 Dingfan Chen , Raouf Kerkouche , Mario Fritz

Privacy concerns have attracted increasing attention in data-driven products due to the tendency of machine learning models to memorize sensitive training data. Generating synthetic versions of such data with a formal privacy guarantee,…

Computation and Language · Computer Science 2023-07-19 Xiang Yue , Huseyin A. Inan , Xuechen Li , Girish Kumar , Julia McAnallen , Hoda Shajari , Huan Sun , David Levitan , Robert Sim

To improve the quality of Differentially private (DP) synthetic images, most studies have focused on improving the core optimization techniques (e.g., DP-SGD). Recently, we have witnessed a paradigm shift that takes these techniques off the…

Cryptography and Security · Computer Science 2026-01-13 Chen Gong , Kecen Li , Zinan Lin , Tianhao Wang

Differentially private (DP) image synthesis generates images that preserve the statistical characteristics of a sensitive dataset, enabling sensitive data analysis and usage while providing rigorous guarantees of privacy leakage. Existing…

Cryptography and Security · Computer Science 2026-05-29 Chen Gong , Kecen Li , Zinan Lin , Tianhao Wang

Diffusion models (DMs) are one of the most widely used generative models for producing high quality images. However, a flurry of recent papers points out that DMs are least private forms of image generators, by extracting a significant…

Machine Learning · Statistics 2025-03-06 Michael F. Liu , Saiyue Lyu , Margarita Vinaroz , Mijung Park
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