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Statistics about traffic flow and people's movement gathered from multiple geographical locations in a distributed manner are the driving force powering many applications, such as traffic prediction, demand prediction, and restaurant…

Cryptography and Security · Computer Science 2024-02-20 Tatsuki Koga , Casey Meehan , Kamalika Chaudhuri

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

In this work, we address the problem of cross-view geo-localization, which estimates the geospatial location of a street view image by matching it with a database of geo-tagged aerial images. The cross-view matching task is extremely…

Computer Vision and Pattern Recognition · Computer Science 2021-07-06 Hongji Yang , Xiufan Lu , Yingying Zhu

Privacy-Preserving Image Queries (PPIQ) are an emerging mechanism for cloud-based visual localization, enabling pose estimation from obfuscated features instead of private images or raw keypoints. However, the main approaches for PPIQ,…

Computer Vision and Pattern Recognition · Computer Science 2026-04-27 Jeonggon Kim , Heejoon Moon , Je Hyeong Hong

Driving trajectory data remains vulnerable to privacy breaches despite existing mitigation measures. Traditional methods for detecting driving trajectories typically rely on map-matching the path using Global Positioning System (GPS) data,…

Cryptography and Security · Computer Science 2025-07-15 Xiaojie Lin , Baihe Ma , Xu Wang , Guangsheng Yu , Ying He , Wei Ni , Ren Ping Liu

Synthetic data generation is a fundamental task for many data management and data science applications. Spatial data is of particular interest, and its sensitive nature often leads to privacy concerns. We introduce GeoPointGAN, a novel…

Machine Learning · Computer Science 2022-05-19 Teddy Cunningham , Konstantin Klemmer , Hongkai Wen , Hakan Ferhatosmanoglu

Large Visual Language Models (LVLMs) now pose a serious yet overlooked privacy threat, as they can infer a social media user's geolocation directly from shared images, leading to unintended privacy leakage. While adversarial image…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Jiayi Zhu , Yihao Huang , Yue Cao , Xiaojun Jia , Qing Guo , Felix Juefei-Xu , Geguang Pu , Bin Wang

Pre-training the embedding of a location generated from human mobility data has become a popular method for location based services. In practice, modeling the location embedding is too expensive, due to the large number of locations to be…

Artificial Intelligence · Computer Science 2023-10-03 Chung Park , Taesan Kim , Junui Hong , Minsung Choi , Jaegul Choo

The tremendous popularity gained by Online Social Networks (OSNs) raises natural concerns about user privacy in social media platforms. Though users in OSNs can tune their privacy by deliberately deciding what to share, the interaction with…

Social and Information Networks · Computer Science 2019-03-28 Luca Luceri , Davide Andreoletti , Silvia Giordano

Vehicle trajectory prediction is essential for enabling safety-critical intelligent transportation systems (ITS) applications used in management and operations. While there have been some promising advances in the field, there is a need for…

Machine Learning · Computer Science 2022-05-27 Vinit Katariya , Mohammadreza Baharani , Nichole Morris , Omidreza Shoghli , Hamed Tabkhi

Passive operating system fingerprinting reveals valuable information to the defenders of heterogeneous private networks; at the same time, attackers can use fingerprinting to reconnoiter networks, so defenders need obfuscation techniques to…

Cryptography and Security · Computer Science 2017-06-27 Blake Anderson , David McGrew

As our cities become more intelligent and more connected with new technologies like 6G, improving communication between vehicles and infrastructure is essential while reducing energy consumption. This study proposes a secure framework for…

Signal Processing · Electrical Eng. & Systems 2024-07-23 Ruotong Zhao , Deepak Mishra , Aruna Seneviratne

The popularity of cyber-physical systems is fueling the rapid growth of location-based services. This poses the risk of location privacy disclosure. Effective privacy preservation is foremost for various mobile applications. Recently,…

Cryptography and Security · Computer Science 2022-11-28 Shun Zhang , Pengfei Lan , Benfei Duan , Zhili Chen , Hong Zhong , Neal N. Xiong

With the ubiquitous use of location-based services, large-scale individual-level location data has been widely collected through location-awareness devices. The widespread exposure of such location data poses significant privacy risks to…

Cryptography and Security · Computer Science 2024-09-16 Mahrokh Abdollahi Lorestani , Thilina Ranbaduge , Thierry Rakotoarivelo

The optimization of urban traffic is threatened by the complexity of achieving a balance between transport efficiency and the maintenance of privacy, as well as the equitable distribution of traffic based on socioeconomically diverse…

Machine Learning · Computer Science 2025-11-11 Rathin Chandra Shit , Sharmila Subudhi

Autonomous Vehicles (AVs) heavily rely on sensors and communication networks like Global Positioning System (GPS) to navigate autonomously. Prior research has indicated that networks like GPS are vulnerable to cyber-attacks such as spoofing…

Traffic violations like illegal parking, illegal turning, and speeding have become one of the greatest challenges in urban transportation systems, bringing potential risks of traffic congestions, vehicle accidents, and parking difficulties.…

Computers and Society · Computer Science 2020-08-24 Zhihan Jiang , Longbiao Chen , Binbin Zhou , Jinchun Huang , Tianqi Xie , Xiaoliang Fan , Cheng Wang

Applications providing location-based services (LBS) have gained much attention and importance with the notion of the internet of things (IoT). Users are utilizing LBS by providing their location information to third-party service…

Cryptography and Security · Computer Science 2025-01-23 Sonia Sabir , Inayat Ali , Eraj Khan

Vehicle platooning, with vehicles traveling in close formation coordinated through Vehicle-to-Everything (V2X) communications, offers significant benefits in fuel efficiency and road utilization. However, it is vulnerable to sophisticated…

Cryptography and Security · Computer Science 2025-07-09 Hexu Li , Konstantinos Kalogiannis , Ahmed Mohamed Hussain , Panos Papadimitratos

Tracking the 6DoF pose of unknown objects in monocular RGB video sequences is crucial for robotic manipulation. However, existing approaches typically rely on accurate depth information, which is non-trivial to obtain in real-world…

Computer Vision and Pattern Recognition · Computer Science 2024-12-04 Zhiyuan Chen , Fan Lu , Guo Yu , Bin Li , Sanqing Qu , Yuan Huang , Changhong Fu , Guang Chen