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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

Differential Privacy (DP) image data synthesis, which leverages the DP technique to generate synthetic data to replace the sensitive data, allowing organizations to share and utilize synthetic images without privacy concerns. Previous…

Computer Vision and Pattern Recognition · Computer Science 2024-10-10 Kecen Li , Chen Gong , Zhixiang Li , Yuzhong Zhao , Xinwen Hou , Tianhao Wang

Publishing trajectory data (individual's movement information) is very useful, but it also raises privacy concerns. To handle the privacy concern, in this paper, we apply differential privacy, the standard technique for data privacy,…

Cryptography and Security · Computer Science 2022-10-06 Haiming Wang , Zhikun Zhang , Tianhao Wang , Shibo He , Michael Backes , Jiming Chen , Yang Zhang

Split Learning has been recently introduced to facilitate applications where user data privacy is a requirement. However, it has not been thoroughly studied in the context of Privacy-Preserving Record Linkage, a problem in which the same…

Cryptography and Security · Computer Science 2024-09-05 Michail Zervas , Alexandros Karakasidis

Sequential data is everywhere, and it can serve as a basis for research that will lead to improved processes. For example, road infrastructure can be improved by identifying bottlenecks in GPS data, or early diagnosis can be improved by…

Cryptography and Security · Computer Science 2020-02-25 Sigal Shaked , Lior Rokach

We introduce the problem of releasing sensitive data under differential privacy when the privacy level is subject to change over time. Existing work assumes that privacy level is determined by the system designer as a fixed value before…

Cryptography and Security · Computer Science 2015-04-06 Fragkiskos Koufogiannis , Shuo Han , George J. Pappas

Deep learning models have demonstrated superior performance in several application problems, such as image classification and speech processing. However, creating a deep learning model using health record data requires addressing certain…

Machine Learning · Computer Science 2021-12-14 Amirsina Torfi , Edward A. Fox , Chandan K. Reddy

Data synthesis has been advocated as an important approach for utilizing data while protecting data privacy. In recent years, a plethora of tabular data synthesis algorithms (i.e., synthesizers) have been proposed. Some synthesizers satisfy…

Cryptography and Security · Computer Science 2025-09-09 Yuntao Du , Ninghui Li

Randomized controlled trials (RCTs) have become powerful tools for assessing the impact of interventions and policies in many contexts. They are considered the gold standard for causal inference in the biomedical fields and many social…

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

Facial Expression Recognition faces two core challenges. The first is class imbalance in public datasets, which skews the learning process and weakens generalization. The second is related to privacy and data collection constraints, which…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Ali Azmoudeh , Erdi Sarıtaş , Ömer Yıldırım , Hazım Kemal Ekenel

Synthetic tabular data generation with differential privacy is a crucial problem to enable data sharing with formal privacy. Despite a rich history of methodological research and development, developing differentially private tabular data…

Machine Learning · Computer Science 2024-06-05 Toan V. Tran , Li Xiong

Statistical agencies utilize models to synthesize respondent-level data for release to the general public as an alternative to the actual data records. A Bayesian model synthesizer encodes privacy protection by employing a hierarchical…

Statistics Theory · Mathematics 2020-05-19 Jingchen Hu , Terrance D. Savitsky

Data privacy is a core tenet of responsible computing, and in the United States, differential privacy (DP) is the dominant technical operationalization of privacy-preserving data analysis. With this study, we qualitatively examine one class…

Human-Computer Interaction · Computer Science 2024-12-18 Lucas Rosenblatt , Bill Howe , Julia Stoyanovich

We study the space complexity of the two related fields of differential privacy and adaptive data analysis. Specifically, (1) Under standard cryptographic assumptions, we show that there exists a problem P that requires exponentially more…

Cryptography and Security · Computer Science 2023-02-14 Itai Dinur , Uri Stemmer , David P. Woodruff , Samson Zhou

With the recent remarkable advancement of large language models (LLMs), there has been a growing interest in utilizing them in the domains with highly sensitive data that lies outside their training data. For this purpose,…

Cryptography and Security · Computer Science 2025-11-13 Tatsuki Koga , Ruihan Wu , Zhiyuan Zhang , Kamalika Chaudhuri

Creation of a synthetic dataset that faithfully represents the data distribution and simultaneously preserves privacy is a major research challenge. Many space partitioning based approaches have emerged in recent years for answering…

Cryptography and Security · Computer Science 2023-06-26 Eleonora Kreačić , Navid Nouri , Vamsi K. Potluru , Tucker Balch , Manuela Veloso

Making evidence based decisions requires data. However for real-world applications, the privacy of data is critical. Using synthetic data which reflects certain statistical properties of the original data preserves the privacy of the…

Machine Learning · Computer Science 2021-05-28 Varun Chandrasekaran , Darren Edge , Somesh Jha , Amit Sharma , Cheng Zhang , Shruti Tople

Data collection under local differential privacy (LDP) has been mostly studied for homogeneous data. Real-world applications often involve a mixture of different data types such as key-value pairs, where the frequency of keys and mean of…

Cryptography and Security · Computer Science 2019-12-02 Xiaolan Gu , Ming Li , Yueqiang Cheng , Li Xiong , Yang Cao

Machine learning practitioners frequently seek to leverage the most informative available data, without violating the data owner's privacy, when building predictive models. Differentially private data synthesis protects personal details…

Machine Learning · Computer Science 2020-11-12 Lucas Rosenblatt , Xiaoyan Liu , Samira Pouyanfar , Eduardo de Leon , Anuj Desai , Joshua Allen