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The proliferation of mobile phones in low- and middle-income countries has suddenly and dramatically increased the extent to which the world's poorest and most vulnerable populations can be observed and tracked by governments and…

Cryptography and Security · Computer Science 2024-08-27 Nitin Kohli , Joshua Blumenstock

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

An increasing amount of mobility data is being collected every day by different means, e.g., by mobile phone operators. This data is sometimes published after the application of simple anonymization techniques, which might lead to severe…

Cryptography and Security · Computer Science 2016-11-17 Vincent Primault , Sonia Ben Mokhtar , Lionel Brunie

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

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

Recent work has shown that cell phone mobility data has the unique potential to create accurate models for human mobility and consequently the spread of infected diseases. While prior studies have exclusively relied on a mobile network…

Cryptography and Security · Computer Science 2022-06-14 Alexandros Bampoulidis , Alessandro Bruni , Lukas Helminger , Daniel Kales , Christian Rechberger , Roman Walch

With the rapid development of GPS enabled devices (smartphones) and location-based applications, location privacy is increasingly concerned. Intuitively, it is widely believed that location privacy can be preserved by publishing aggregated…

Cryptography and Security · Computer Science 2019-08-13 Zhili Chen , Xiaoli Kan , Shun Zhang , Lin Chen , Yan Xu , Hong Zhong

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

Understanding the patterns of mobility of individuals is crucial for a number of reasons, from city planning to disaster management. There are two common ways of quantifying the amount of travel between locations: by direct observations…

Physics and Society · Physics 2014-08-25 Vasyl Palchykov , Marija Mitrović , Hang-Hyun Jo , Jari Saramäki , Raj Kumar Pan

Human mobility analysis is an important issue in social sciences, and mobility data are among the most sought-after sources of information in ur- Data ban studies, geography, transportation and territory management. In network sciences…

Computers and Society · Computer Science 2013-01-29 Thomas Couronne , Zbigniew Smoreda , Ana-Maria Olteanu

Humanitarian organizations distribute aid to people affected by armed conflicts or natural disasters. Digitalization has the potential to increase the efficiency and fairness of aid-distribution systems, and recent work by Wang et al. has…

Cryptography and Security · Computer Science 2024-10-22 Eva Luvison , Sylvain Chatel , Justinas Sukaitis , Vincent Graf Narbel , Carmela Troncoso , Wouter Lueks

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

Sharing location traces with context-aware service providers has privacy implications. Location-privacy preserving mechanisms, such as obfuscation, anonymization and cryptographic primitives, have been shown to have impractical…

Cryptography and Security · Computer Science 2018-02-21 Vaibhav Kulkarni , Arielle Moro , Bertil Chapuis , Benoit Garbinato

Location data can be extremely useful to study commuting patterns and disruptions, as well as to predict real-time traffic volumes. At the same time, however, the fine-grained collection of user locations raises serious privacy concerns, as…

Cryptography and Security · Computer Science 2016-10-11 Apostolos Pyrgelis , Emiliano De Cristofaro , Gordon Ross

With the aim to contribute to humanitarian response to disasters and violent events, scientists have proposed the development of analytical tools that could identify emergency events in real-time, using mobile phone data. The assumption is…

Physics and Society · Physics 2015-08-19 Adrian Dobra , Nathalie E. Williams , Nathan Eagle

The description of complex human mobility patterns is at the core of many important applications ranging from urbanism and transportation to epidemics containment. Data about collective human movements, once scarce, has become widely…

Physics and Society · Physics 2022-11-21 Riccardo Gallotti , Davide Maniscalco , Marc Barthelemy , Manlio De Domenico

Human mobility data offers valuable insights for many applications such as urban planning and pandemic response, but its use also raises privacy concerns. In this paper, we introduce the Hierarchical and Multi-Resolution Network (HRNet), a…

Cryptography and Security · Computer Science 2024-07-23 Shun Takagi , Li Xiong , Fumiyuki Kato , Yang Cao , Masatoshi Yoshikawa

Mobile apps that use location data are pervasive, spanning domains such as transportation, urban planning and healthcare. Important use cases for location data rely on statistical queries, e.g., identifying hotspots where users work and…

Databases · Computer Science 2021-07-30 Sina Shaham , Gabriel Ghinita , Ritesh Ahuja , John Krumm , Cyrus Shahabi

In this work, we initiate the study of human mobility from sanitized call detail records (CDRs). Such data can be extremely valuable to solve important societal issues such as the improvement of urban transportation or the understanding on…

Cryptography and Security · Computer Science 2015-01-05 Mohammad Alaggan , Sébastien Gambs , Stan Matwin , Eriko Souza , Mohammed Tuhin

Mobile ad hoc networks (MANETs) are self-configuring infrastructure-less networks comprised of mobile nodes that communicate over wireless links without any central control on a peer-to-peer basis. These individual nodes act as routers to…

Cryptography and Security · Computer Science 2012-03-09 Hamza Aldabbas , Tariq Alwada'n , Helge Janicke , Ali Al-Bayatti
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