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The problem of private information "leakage" (inadvertently or by malicious design) from the myriad large centralized searchable data repositories drives the need for an analytical framework that quantifies unequivocally how safe private…

Information Theory · Computer Science 2010-02-09 Lalitha Sankar , S. Raj Rajagopalan , H. Vincent Poor

Generating human mobility trajectories is of great importance to solve the lack of large-scale trajectory data in numerous applications, which is caused by privacy concerns. However, existing mobility trajectory generation methods still…

Machine Learning · Computer Science 2024-07-25 Huandong Wang , Changzheng Gao , Yuchen Wu , Depeng Jin , Lina Yao , Yong Li

Despite the generative model's groundbreaking success, the need to study its implications for privacy and utility becomes more urgent. Although many studies have demonstrated the privacy threats brought by GANs, no existing survey has…

Machine Learning · Computer Science 2025-02-07 Debalina Padariya , Isabel Wagner , Aboozar Taherkhani , Eerke Boiten

Generative machine learning models are being increasingly viewed as a way to share sensitive data between institutions. While there has been work on developing differentially private generative modeling approaches, these approaches…

Cryptography and Security · Computer Science 2022-10-13 Yixi Xu , Sumit Mukherjee , Xiyang Liu , Shruti Tople , Rahul Dodhia , Juan Lavista Ferres

Human mobility data has been ubiquitously collected through cellular networks and mobile applications, and publicly released for academic research and commercial purposes for the last decade. Since releasing individual's mobility records…

Computers and Society · Computer Science 2017-02-28 Fengli Xu , Zhen Tu , Yong Li , Pengyu Zhang , Xiaoming Fu , Depeng Jin

Once analysed, location trajectories can provide valuable insights beneficial to various applications. However, such data is also highly sensitive, rendering them susceptible to privacy risks in the event of mismanagement, for example,…

Cryptography and Security · Computer Science 2025-02-18 Nicholas D'Silva , Toran Shahi , Øyvind Timian Dokk Husveg , Adith Sanjeeve , Erik Buchholz , Salil S. Kanhere

As the reliance on GPS technology for navigation grows, so does the ethical dilemma of balancing its indispensable utility with the escalating concerns over user privacy. This study investigates the trade-offs between GPS utility and…

Human-Computer Interaction · Computer Science 2023-09-25 Yousef AlSaqabi , Souti Chattopadhyay

Synthetic data generation is one approach for sharing individual-level data. However, to meet legislative requirements, it is necessary to demonstrate that the individuals' privacy is adequately protected. There is no consolidated standard…

Access to granular demand data is essential for the net zero transition; it allows for accurate profiling and active demand management as our reliance on variable renewable generation increases. However, public release of this data is often…

Machine Learning · Computer Science 2024-10-23 Sheng Chai , Gus Chadney , Charlot Avery , Phil Grunewald , Pascal Van Hentenryck , Priya L. Donti

End-user privacy in smart meter measurements is a well-known challenge in the smart grid. The solutions offered thus far have been tied to specific technologies such as batteries or assumptions on data usage. Existing solutions have also…

Information Theory · Computer Science 2016-11-18 S. Raj Rajagopalan , Lalitha Sankar , Soheil Mohajer , H. Vincent Poor

Due to the recent popularity of online social networks, coupled with people's propensity to disclose personal information in an effort to achieve certain gratifications, the problem of navigating the tradeoff between privacy and utility…

Information Theory · Computer Science 2020-03-12 Chandra Sharma , George Amariucai

Online offerings such as web search, news portals, and e-commerce applications face the challenge of providing high-quality service to a large, heterogeneous user base. Recent efforts have highlighted the potential to improve performance by…

Artificial Intelligence · Computer Science 2014-01-17 Andreas Krause , Eric Horvitz

The importance of human mobility analyses is growing in both research and practice, especially as applications for urban planning and mobility rely on them. Aggregate statistics and visualizations play an essential role as building blocks…

Cryptography and Security · Computer Science 2022-11-24 Alexandra Kapp , Saskia Nuñez von Voigt , Helena Mihaljević , Florian Tschorsch

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

Trajectories are nowadays valuable information for a wide range of applications. However they are also inherently sensitive, as they contain highly personal information about individuals. Facing this challenge, synthesizing mobility…

Artificial Intelligence · Computer Science 2026-05-12 Florent Guépin , Cheick Tidiani Cisse , Denis Renaud , François Bidet , Arnaud Legendre

We propose a novel problem formulation to address the privacy-utility tradeoff, specifically when dealing with two distinct user groups characterized by unique sets of private and utility attributes. Unlike previous studies that primarily…

Machine Learning · Computer Science 2024-09-12 Bishwas Mandal , George Amariucai , Shuangqing Wei

Recent advancements in generative AI have made it possible to create synthetic datasets that can be as accurate as real-world data for training AI models, powering statistical insights, and fostering collaboration with sensitive datasets…

Machine Learning · Computer Science 2025-01-08 Amy Steier , Lipika Ramaswamy , Andre Manoel , Alexa Haushalter

Power consumption data is very useful as it allows to optimize power grids, detect anomalies and prevent failures, on top of being useful for diverse research purposes. However, the use of power consumption data raises significant privacy…

Signal Processing · Electrical Eng. & Systems 2021-11-29 Ganesh Del Grosso , Georg Pichler , Pablo Piantanida

Trajectory data has the potential to greatly benefit a wide-range of real-world applications, such as tracking the spread of the disease through people's movement patterns and providing personalized location-based services based on travel…

Databases · Computer Science 2023-10-16 Yuntao Du , Yujia Hu , Zhikun Zhang , Ziquan Fang , Lu Chen , Baihua Zheng , Yunjun Gao

High-fidelity generative models are increasingly needed in privacy-sensitive scenarios, where access to data is severely restricted due to regulatory and copyright constraints. This scarcity hampers model development--ironically, in…

Computer Vision and Pattern Recognition · Computer Science 2026-04-10 Xuemei Jia , Jiawei Du , Hui Wei , Jun Chen , Joey Tianyi Zhou , Zheng Wang