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Differential Privacy protects individuals' data when statistical queries are published from aggregated databases: applying "obfuscating" mechanisms to the query results makes the released information less specific but, unavoidably, also…

Cryptography and Security · Computer Science 2021-07-27 Natasha Fernandes , Annabelle McIver , Carroll Morgan

This paper focuses on the privacy-preserving multi-sensor fusion estimation (MSFE) problem with differential privacy considerations. Most existing research efforts are directed towards the exploration of traditional differential privacy,…

Systems and Control · Electrical Eng. & Systems 2025-08-22 Xinhao Yan , Bo Chen , Hailong Huang

Location privacy-preserving mechanisms (LPPMs) have been extensively studied for protecting users' location privacy by releasing a perturbed location to third parties such as location-based service providers. However, when a user's…

Databases · Computer Science 2020-05-20 Yang Cao , Yonghui Xiao , Li Xiong , Liquan Bai , Masatoshi Yoshikawa

Location-based augmented reality (LB-AR) applications, such as Pok\'emon Go, stream sub-second GPS updates to deliver responsive and immersive user experiences. However, this high-frequency location reporting introduces serious privacy…

Cryptography and Security · Computer Science 2025-08-05 Shafizur Rahman Seeam , Ye Zheng , Zhengxiong Li , Yidan Hu

Differential privacy is a recently proposed notion of privacy that provides strong privacy guarantees without any assumptions on the adversary. The paper studies the problem of computing a differentially private solution to convex…

Optimization and Control · Mathematics 2014-03-26 Shuo Han , Ufuk Topcu , George J. Pappas

The rapid expansion of Internet of Things (IoT) devices in smart homes has significantly improved the quality of life, offering enhanced convenience, automation, and energy efficiency. However, this proliferation of connected devices raises…

Cryptography and Security · Computer Science 2023-08-08 Nazar Waheed , Fazlullah Khan , Spyridon Mastorakis , Mian Ahmad Jan , Abeer Z. Alalmaie , Priyadarsi Nanda

Protecting location privacy in mobile services has recently received significant consideration as Location-Based Service (LBS) can reveal user locations to attackers. A problem in the existing cloaking schemes is that location…

Cryptography and Security · Computer Science 2017-09-13 Hiep H. Nguyen

Differential privacy is a popular privacy-enhancing technology that has been deployed both in industry and government agencies. Unfortunately, existing explanations of differential privacy fail to set accurate privacy expectations for data…

Cryptography and Security · Computer Science 2025-09-29 Mary Anne Smart , Priyanka Nanayakkara , Rachel Cummings , Gabriel Kaptchuk , Elissa Redmiles

Localization in mobile networks has been widely applied in many scenarios. However, an entity responsible for location estimation exposes both the target and anchors to potential location leakage at any time, creating serious security…

Cryptography and Security · Computer Science 2026-01-09 Liangbo Xie , Mude Cai , Xiaolong Yang , Mu Zhou , Jiacheng Wang , Dusit Niyato

Differentially Private (DP) generative marginal models are often used in the wild to release synthetic tabular datasets in lieu of sensitive data while providing formal privacy guarantees. These models approximate low-dimensional marginals…

Cryptography and Security · Computer Science 2025-10-29 Georgi Ganev , Meenatchi Sundaram Muthu Selva Annamalai , Sofiane Mahiou , Emiliano De Cristofaro

In this paper, we design user-centric obfuscation mechanisms that impose the minimum utility loss for guaranteeing user's privacy. We optimize utility subject to a joint guarantee of differential privacy (indistinguishability) and…

Cryptography and Security · Computer Science 2015-05-29 Reza Shokri

Applying differential privacy at scale requires convenient ways to check that programs computing with sensitive data appropriately preserve privacy. We propose here a fully automated framework for {\em testing} differential privacy,…

Cryptography and Security · Computer Science 2020-10-09 Hengchu Zhang , Edo Roth , Andreas Haeberlen , Benjamin C. Pierce , Aaron Roth

Differential privacy (DP) has become the de facto standard of privacy preservation due to its strong protection and sound mathematical foundation, which is widely adopted in different applications such as big data analysis, graph data…

Cryptography and Security · Computer Science 2021-12-06 Honglu Jiang , Yifeng Gao , S M Sarwar , Luis GarzaPerez , Mahmudul Robin

The shuffle model of Differential Privacy (DP) is an enhanced privacy protocol which introduces an intermediate trusted server between local users and a central data curator. It significantly amplifies the central DP guarantee by…

Cryptography and Security · Computer Science 2024-07-26 Yixuan Liu , Yuhan Liu , Li Xiong , Yujie Gu , Hong Chen

The last decade has witnessed a tremendous growth of service computing, while efficient service recommendation methods are desired to recommend high-quality services to users. It is well known that collaborative filtering is one of the most…

Information Retrieval · Computer Science 2024-08-29 Lina Wang , Huan Yang , Yiran Shen , Chao Liu , Lianyong Qi , Xiuzhen Cheng , Feng Li

In recent years, the widespread of mobile devices equipped with GPS and communication chips has led to the growing use of location-based services (LBS) in which a user receives a service based on his current location. The disclosure of…

Cryptography and Security · Computer Science 2020-02-25 Alireza Partovi , Wei Zheng , Taeho Jung , Hai Lin

Mobility data is essential for cities and communities to identify areas for necessary improvement. Data collected by mobility providers already contains all the information necessary, but privacy of the individuals needs to be preserved.…

Human-Computer Interaction · Computer Science 2023-06-23 Daniel Franzen , Saskia Nuñez von Voigt , Peter Sörries , Florian Tschorsch , Claudia Müller-Birn

Differentially private (DP) mechanisms have been deployed in a variety of high-impact social settings (perhaps most notably by the U.S. Census). Since all DP mechanisms involve adding noise to results of statistical queries, they are…

Cryptography and Security · Computer Science 2023-12-20 Lucas Rosenblatt , Julia Stoyanovich , Christopher Musco

In this paper, the problem of providing privacy to users requesting data over a network from a distributed storage system (DSS) is considered. The DSS, which is considered as the multi-terminal destination of the network from the user's…

Information Theory · Computer Science 2019-06-24 Razane Tajeddine , Antonia Wachter-Zeh , Camilla Hollanti

How can agents exchange information to learn while protecting privacy? Healthcare centers collaborating on clinical trials must balance knowledge sharing with safeguarding sensitive patient data. We address this challenge by using…

Machine Learning · Computer Science 2025-03-19 Marios Papachristou , M. Amin Rahimian