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A location histogram is comprised of the number of times a user has visited locations as they move in an area of interest, and it is often obtained from the user in applications such as recommendation and advertising. However, a location…

Cryptography and Security · Computer Science 2019-12-03 Grigorios Loukides , George Theodorakopoulos

Large-scale GPS trajectory data offer rich observations of human mobility, yet assigning trip purposes to detected stops remains challenging due to the absence of individual-level ground truth, spatial uncertainty from GPS noise and…

Artificial Intelligence · Computer Science 2026-05-05 Bo Yang , Haoxuan Ma , Yifan Liu , Zhiyuan Zhang , Chris Stanford , Morgan Sun , Jiaqi Ma

Although appearance-based point-of-gaze (PoG) estimation has improved, the estimators still struggle to generalize across individuals due to personal differences. Therefore, person-specific calibration is required for accurate PoG…

Computer Vision and Pattern Recognition · Computer Science 2025-08-15 Yujie Zhao , Jiabei Zeng , Shiguang Shan

Understanding how urban residents travel between neighborhoods and destinations is critical for transportation planning, mobility management, and public health. By mining historical origin-to-destination flow patterns with spatial,…

Computational Engineering, Finance, and Science · Computer Science 2025-10-06 Lin Pang , Jidong J. Yang

Mobile devices have access to personal, potentially sensitive data, and there is a large number of mobile applications and third-party libraries that transmit this information over the network to remote servers (including app developer…

Cryptography and Security · Computer Science 2022-06-07 Evita Bakopoulou , Anastasia Shuba , Athina Markopoulou

Call detail records (CDR) from mobile phone networks are widely used to study human mobility however CDR data from a single mobile operator are inherently biased because the observed users do not mirror the population distribution. Using…

Physics and Society · Physics 2026-04-20 Leo Ferres , Laetitia Gauvin

With the increasing usage of smartphones, there is a corresponding increase in the phone metadata generated by individuals using these devices. Managing the privacy of personal information on these devices can be a complex task. Recent…

Computers and Society · Computer Science 2016-04-15 Isha Ghosh , Vivek K. Singh

Understanding human mobility is essential for many fields, including transportation planning. Currently, surveys are the primary source for such analysis. However, in the recent past, many researchers have focused on Call Detail Records…

Machine Learning · Computer Science 2021-08-23 Buddhi Ayesha , Bhagya Jeewanthi , Charith Chitraranjan , Amal Shehan Perera , Amal S. Kumarage

The positioning of users using their smartphones represents interesting service for various areas. Position of users can represent valuable information for various service providers. In industry 4.0 smart devices such as smartphone or…

Human-Computer Interaction · Computer Science 2022-09-27 Jan Racko , Juraj Machaj , Peter Brida

When users move in a physical space (e.g., an urban space), they would have some records called mobility records (e.g., trajectories) generated by devices such as mobile phones and GPS devices. Naturally, mobility records capture essential…

Machine Learning · Computer Science 2022-11-16 Zheng Wang , Mingrui Liu , Cheng Long , Qianru Zhang , Jiangneng Li , Chunyan Miao

Sequential location recommendation plays a huge role in modern life, which can enhance user experience, bring more profit to businesses and assist in government administration. Although methods for location recommendation have evolved…

Artificial Intelligence · Computer Science 2023-10-25 Xuan Luo , Mingqing Huang , Rui Lv , Hui Zhao

Building upon the strong sequence modeling capability, Generative Recommendation (GR) has gradually assumed a dominant position in the application of recommendation tasks (e.g., video and product recommendation). However, the application of…

Information Retrieval · Computer Science 2025-08-25 Haitao Lin , Zhen Yang , Jiawei Xue , Ziji Zhang , Luzhu Wang , Yikun Gu , Yao Xu , Xin Li

Location Privacy-Preserving Mechanisms (LPPMs) in the literature largely consider that users' data available for training wholly characterizes their mobility patterns. Thus, they hardwire this information in their designs and evaluate their…

Cryptography and Security · Computer Science 2019-05-24 Simon Oya , Carmela Troncoso , Fernando Pérez-González

Users' locations are important for many applications such as personalized search and localized content delivery. In this paper, we study the problem of profiling Twitter users' locations with their following network and tweets. We propose a…

Databases · Computer Science 2012-08-02 Rui Li , Shengjie Wang , Kevin Chen-Chuan Chang

The advent of autonomous agents is transforming interactions with Graphical User Interfaces (GUIs) by employing natural language as a powerful intermediary. Despite the predominance of Supervised Fine-Tuning (SFT) methods in current GUI…

Machine Learning · Computer Science 2026-04-22 Jiaqi Tang , Yu Xia , Yi-Feng Wu , Yuwei Hu , Yuhui Chen , Qing-Guo Chen , Xiaogang Xu , Xiangyu Wu , Hao Lu , Yanqing Ma , Shiyin Lu , Qifeng Chen

This study evaluates the effectiveness of using Google Maps Location History data to identify joint activities in social networks. To do so, an experiment was conducted where participants were asked to execute daily schedules designed to…

Applications · Statistics 2022-11-11 Giancarlos Parady , Keita Suzuki , Yuki Oyama , Makoto Chikaraishi

To increase mobile user engagement, current apps employ a variety of behavioral nudges, but these engagement techniques are applied in a one-size-fits-all approach. Yet the very same techniques may be perceived differently by different…

Human-Computer Interaction · Computer Science 2023-07-26 Nima Jamalian , Marios Constantinides , Sagar Joglekar , Xueni Pan , Daniele Quercia

Point-of-Interest (POI) recommendation plays a vital role in various location-aware services. It has been observed that POI recommendation is driven by both sequential and geographical influences. However, since there is no annotated label…

Information Retrieval · Computer Science 2023-09-15 Yifang Qin , Yifan Wang , Fang Sun , Wei Ju , Xuyang Hou , Zhe Wang , Jia Cheng , Jun Lei , Ming Zhang

Goal oriented autonomous operation of space rovers has been known to increase scientific output of a mission. In this work we present an algorithm, called the RoI Prioritised Sampling (RPS), that prioritises Region-of-Interests (RoIs) in an…

Image and Video Processing · Electrical Eng. & Systems 2022-04-21 Protim Bhattacharjee , Martin Burger , Anko Boerner , Veniamin I. Morgenshtern

In this paper, we present a three-step methodological framework, including location identification, bias modification, and out-of-sample validation, so as to promote human mobility analysis with social media data. More specifically, we…

Social and Information Networks · Computer Science 2018-08-15 Yilan Cui , Xing Xie , Yi Liu