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As location-based services (LBS) have grown in popularity, more human mobility data has been collected. The collected data can be used to build machine learning (ML) models for LBS to enhance their performance and improve overall experience…

Machine Learning · Computer Science 2024-07-09 Kunlin Cai , Jinghuai Zhang , Zhiqing Hong , Will Shand , Guang Wang , Desheng Zhang , Jianfeng Chi , Yuan Tian

The popularity of mobile devices and location-based services (LBS) has created great concern regarding the location privacy of their users. Anonymization is a common technique that is often used to protect the location privacy of LBS users.…

Information Theory · Computer Science 2017-01-23 Zarrin Montazeri , Amir Houmansadr , Hossein Pishro-Nik

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

Privacy in Location-Based Services (LBS) has become a paramount concern with the ubiquity of mobile devices and the increasing integration of location data into various applications. This paper presents several novel contributions to…

Cryptography and Security · Computer Science 2024-09-24 Anis Bkakria , Reda Yaich

When it comes to location-based services (LBS), user privacy protection can be in conflict with security of both users and trips. While LBS providers could adopt privacy preservation mechanisms to obfuscate customer data, the accuracy of…

Cryptography and Security · Computer Science 2021-12-14 Dajiang Suo , M. Elena Renda , Jinhua Zhao

Location-Based Services (LBSs) offer significant convenience to mobile users but pose significant privacy risks, as attackers can infer sensitive personal information through spatiotemporal correlations in user trajectories. Since users'…

Cryptography and Security · Computer Science 2025-11-27 Minghui Min , Jiahui Liu , Mingge Cao , Shiyin Li , Hongliang Zhang , Miao Pan , Zhu Han

The number and dynamic nature of web and mobile applications presents significant challenges for assessing their compliance with data protection laws. In this context, symbolic and statistical Natural Language Processing (NLP) techniques…

Computation and Language · Computer Science 2025-12-22 David Rodriguez , Ian Yang , Jose M. Del Alamo , Norman Sadeh

Location-based services (LBS) have been significantly developed and widely deployed in mobile devices. It is also well-known that LBS applications may result in severe privacy concerns by collecting sensitive locations. A strong privacy…

Cryptography and Security · Computer Science 2022-10-03 Han Wang , Hanbin Hong , Li Xiong , Zhan Qin , Yuan Hong

Location-based Services (LBSs) provide valuable services, with convenient features for users. However, the information disclosed through each request harms user privacy. This is a concern particularly with honest-but-curious LBS servers,…

Cryptography and Security · Computer Science 2020-01-22 Hongyu Jin , Panos Papadimitratos

Location-based services (LBSs) in vehicular ad hoc networks (VANETs) offer users numerous conveniences. However, the extensive use of LBSs raises concerns about the privacy of users' trajectories, as adversaries can exploit temporal…

Cryptography and Security · Computer Science 2024-01-23 Mingge Cao , Haopeng Zhu , Minghui Min , Yulu Li , Shiyin Li , Hongliang Zhang , Zhu Han

Preserving the individuals' privacy in sharing spatial-temporal datasets is critical to prevent re-identification attacks based on unique trajectories. Existing privacy techniques tend to propose ideal privacy-utility tradeoffs, however,…

Machine Learning · Computer Science 2023-04-14 Yuting Zhan , Hamed Haddadi , Afra Mashhadi

Concerns on location privacy frequently arise with the rapid development of GPS enabled devices and location-based applications. While spatial transformation techniques such as location perturbation or generalization have been studied…

Databases · Computer Science 2015-11-05 Yonghui Xiao , Li Xiong

The shuffle model is recently proposed to address the issue of severe utility loss in Local Differential Privacy (LDP) due to distributed data randomization.In the shuffle model, a shuffler is utilized to break the link between the user…

Cryptography and Security · Computer Science 2021-08-03 Xiaochen Li , Weiran Liu , Hanwen Feng , Kunzhe Huang , Jinfei Liu , Kui Ren , Zhan Qin

With low-cost computing devices, improved sensor technology, and the proliferation of data-driven algorithms, we have more data than we know what to do with. In transportation, we are seeing a surge in spatiotemporal data collection. At the…

Cryptography and Security · Computer Science 2024-07-24 Rahul Bhadani

Location privacy leaks can lead to unauthorised tracking, identity theft, and targeted attacks, compromising personal security and privacy. This study explores LLM-powered location privacy leaks associated with photo sharing on social…

Human-Computer Interaction · Computer Science 2025-03-27 Ying Ma , Shiquan Zhang , Dongju Yang , Zhanna Sarsenbayeva , Jarrod Knibbe , Jorge Goncalves

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

With the fast development of Information Technology, a tremendous amount of data have been generated and collected for research and analysis purposes. As an increasing number of users are growing concerned about their personal information,…

Cryptography and Security · Computer Science 2020-08-11 Mengmeng Yang , Lingjuan Lyu , Jun Zhao , Tianqing Zhu , Kwok-Yan Lam

The widespread adoption of continuously connected smartphones and tablets developed the usage of mobile applications, among which many use location to provide geolocated services. These services provide new prospects for users: getting…

Cryptography and Security · Computer Science 2018-10-09 Primault Vincent , Boutet Antoine , Ben Mokhtar Sonia , Brunie Lionel

Human mobility data is a crucial resource for urban mobility management, but it does not come without personal reference. The implementation of security measures such as anonymization is thus needed to protect individuals' privacy. Often, a…

Cryptography and Security · Computer Science 2024-07-08 Alexandra Kapp

Machine learning (ML) algorithms rely primarily on the availability of training data, and, depending on the domain, these data may include sensitive information about the data providers, thus leading to significant privacy issues.…

Machine Learning · Computer Science 2024-05-24 Karima Makhlouf , Tamara Stefanovic , Heber H. Arcolezi , Catuscia Palamidessi