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Access to electronic health record (EHR) data has motivated computational advances in medical research. However, various concerns, particularly over privacy, can limit access to and collaborative use of EHR data. Sharing synthetic EHR data…

Machine Learning · Computer Science 2018-01-15 Edward Choi , Siddharth Biswal , Bradley Malin , Jon Duke , Walter F. Stewart , Jimeng Sun

Individual-level data (microdata) that characterizes a population, is essential for studying many real-world problems. However, acquiring such data is not straightforward due to cost and privacy constraints, and access is often limited to…

Machine Learning · Computer Science 2022-12-13 Angeela Acharya , Siddhartha Sikdar , Sanmay Das , Huzefa Rangwala

The generation of synthetic medical records using Generative Adversarial Networks (GANs) is becoming crucial for addressing privacy concerns and facilitating data sharing in the medical domain. In this paper, we introduce a novel method to…

Image and Video Processing · Electrical Eng. & Systems 2023-09-20 Tomohiro Kikuchi , Shouhei Hanaoka , Takahiro Nakao , Tomomi Takenaga , Yukihiro Nomura , Harushi Mori , Takeharu Yoshikawa

While data sharing is crucial for knowledge development, privacy concerns and strict regulation (e.g., European General Data Protection Regulation (GDPR)) unfortunately limit its full effectiveness. Synthetic tabular data emerges as an…

Machine Learning · Computer Science 2021-06-02 Zilong Zhao , Aditya Kunar , Hiek Van der Scheer , Robert Birke , Lydia Y. Chen

Sharing health and behavioral data raises significant privacy concerns, as conventional de-identification methods are susceptible to privacy attacks. Differential Privacy (DP) provides formal guarantees against re-identification risks, but…

Generative Adversarial Networks (GAN) have shown great promise in tasks like synthetic image generation, image inpainting, style transfer, and anomaly detection. However, generating discrete data is a challenge. This work presents an…

Machine Learning · Computer Science 2018-04-04 Shreyas Patel , Ashutosh Kakadiya , Maitrey Mehta , Raj Derasari , Rahul Patel , Ratnik Gandhi

We present a new weakly supervised learning-based method for generating novel category-specific 3D shapes from unoccluded image collections. Our method is weakly supervised and only requires silhouette annotations from unoccluded,…

Computer Vision and Pattern Recognition · Computer Science 2019-06-11 Xiao Li , Yue Dong , Pieter Peers , Xin Tong

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

Auto-encoding generative adversarial networks (GANs) combine the standard GAN algorithm, which discriminates between real and model-generated data, with a reconstruction loss given by an auto-encoder. Such models aim to prevent mode…

Machine Learning · Statistics 2017-10-24 Mihaela Rosca , Balaji Lakshminarayanan , David Warde-Farley , Shakir Mohamed

Deep learning holds immense promise for aiding radiologists in breast cancer detection. However, achieving optimal model performance is hampered by limitations in availability and sharing of data commonly associated to patient privacy…

Computer Vision and Pattern Recognition · Computer Science 2024-07-18 Richard Osuala , Daniel M. Lang , Anneliese Riess , Georgios Kaissis , Zuzanna Szafranowska , Grzegorz Skorupko , Oliver Diaz , Julia A. Schnabel , Karim Lekadir

We study the sample complexity of private synthetic data generation over an unbounded sized class of statistical queries, and show that any class that is privately proper PAC learnable admits a private synthetic data generator (perhaps…

Machine Learning · Computer Science 2020-12-08 Olivier Bousquet , Roi Livni , Shay Moran

Mechanisms for generating differentially private synthetic data based on marginals and graphical models have been successful in a wide range of settings. However, one limitation of these methods is their inability to incorporate public…

Machine Learning · Computer Science 2024-03-13 Miguel Fuentes , Brett Mullins , Ryan McKenna , Gerome Miklau , Daniel Sheldon

The widespread adoption of dynamic Time-of-Use (dToU) electricity tariffs requires accurately identifying households that would benefit from such pricing structures. However, the use of real consumption data poses serious privacy concerns,…

Machine Learning · Computer Science 2025-06-16 Andre Catarino , Rui Melo , Rui Abreu , Luis Cruz

We study private synthetic data generation for query release, where the goal is to construct a sanitized version of a sensitive dataset, subject to differential privacy, that approximately preserves the answers to a large collection of…

Machine Learning · Computer Science 2021-12-10 Terrance Liu , Giuseppe Vietri , Zhiwei Steven Wu

Generative adversarial nets (GANs) have been widely studied during the recent development of deep learning and unsupervised learning. With an adversarial training mechanism, GAN manages to train a generative model to fit the underlying…

Information Retrieval · Computer Science 2018-06-12 Weinan Zhang

Hashing has been a widely-adopted technique for nearest neighbor search in large-scale image retrieval tasks. Recent research has shown that leveraging supervised information can lead to high quality hashing. However, the cost of annotating…

Computer Vision and Pattern Recognition · Computer Science 2018-04-24 Zhaofan Qiu , Yingwei Pan , Ting Yao , Tao Mei

We focus on the problem of generating high-quality, private synthetic glucose traces, a task generalizable to many other time series sources. Existing methods for time series data synthesis, such as those using Generative Adversarial…

Machine Learning · Computer Science 2023-11-01 Josephine Lamp , Mark Derdzinski , Christopher Hannemann , Joost van der Linden , Lu Feng , Tianhao Wang , David Evans

Synthetic health data have the potential to mitigate privacy concerns when sharing data to support biomedical research and the development of innovative healthcare applications. Modern approaches for data generation based on machine…

Machine Learning · Computer Science 2023-01-11 Chao Yan , Yao Yan , Zhiyu Wan , Ziqi Zhang , Larsson Omberg , Justin Guinney , Sean D. Mooney , Bradley A. Malin

While location trajectories offer valuable insights, they also reveal sensitive personal information. Differential Privacy (DP) offers formal protection, but achieving a favourable utility-privacy trade-off remains challenging. Recent works…

Cryptography and Security · Computer Science 2025-06-12 Erik Buchholz , Natasha Fernandes , David D. Nguyen , Alsharif Abuadbba , Surya Nepal , Salil S. Kanhere

The objective of differential privacy (DP) is to protect privacy by producing an output distribution that is indistinguishable between any two neighboring databases. However, traditional differentially private mechanisms tend to produce…

Cryptography and Security · Computer Science 2023-11-07 Kai Zhang , Yanjun Zhang , Ruoxi Sun , Pei-Wei Tsai , Muneeb Ul Hassan , Xin Yuan , Minhui Xue , Jinjun Chen