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Global positioning system (GPS) trajectories recorded by mobile phones or action cameras offer valuable insights into sustainable mobility, as they provide fine-scale spatial and temporal characteristics of individual travel. However, the…

Databases · Computer Science 2026-05-07 Meihui Wang , James Haworth , Ilya Ilyankou , Nicola Christie

Traffic simulations, essential for planning urban transit infrastructure interventions, require vehicle-category-specific origin-destination (OD) data. Existing data sources are imperfect: sparse tollbooth sensors provide accurate vehicle…

Machine Learning · Computer Science 2026-04-20 Oluwaleke Yusuf , Shaira Tabassum

Mobile traffic data in urban regions shows differentiated patterns during different hours of the day. The exploitation of these patterns enables highly accurate mobile traffic prediction for proactive network management. However, recent…

The emerging technologies related to mobile data especially CDR data has great potential for mobility and transportation applications. However, it presents some challenges due to its spatio-temporal characteristics and sparseness.…

Networking and Internet Architecture · Computer Science 2019-02-26 Amnir Hadachi , Artjom Lind

This paper presents a novel system for reconstructing high-resolution GPS trajectory data from truncated or synthetic low-resolution inputs, addressing the critical challenge of balancing data utility with privacy preservation in mobility…

Signal Processing · Electrical Eng. & Systems 2026-04-28 Haruki Yonekura , Ren Ozeki , Hamada Rizk , Hirozumi Yamaguchi

Cellular traffic prediction is of great importance for operators to manage network resources and make decisions. Traffic is highly dynamic and influenced by many exogenous factors, which would lead to the degradation of traffic prediction…

Machine Learning · Computer Science 2025-06-23 Hui Ma , Kai Yang , Man-On Pun

To address the limitations of traffic prediction from location-bound detectors, we present Geographical Cellular Traffic (GCT) flow, a novel data source that leverages the extensive coverage of cellular traffic to capture mobility patterns.…

Machine Learning · Computer Science 2024-01-09 ChungYi Lin , Shen-Lung Tung , Hung-Ting Su , Winston H. Hsu

Being a key technology for beyond fifth-generation wireless systems, joint communication and radar sensing (JCAS) utilizes the reflections of communication signals to detect foreign objects and deliver situational awareness. A…

Systems and Control · Electrical Eng. & Systems 2022-07-28 Shuyan Hu , Xin Yuan , Wei Ni , Xin Wang

Domain-wide recognized by their high value in human presence and activity studies, cellular network datasets (i.e., Charging Data Records, named CdRs), however, present accessibility, usability, and privacy issues, restricting their…

Networking and Internet Architecture · Computer Science 2023-01-06 Anne Josiane Kouam , Aline Carneiro Viana , Alain Tchana

A strong visual object tracker nowadays relies on its well-crafted modules, which typically consist of manually-designed network architectures to deliver high-quality tracking results. Not surprisingly, the manual design process becomes a…

Computer Vision and Pattern Recognition · Computer Science 2021-10-27 Seyed Mojtaba Marvasti-Zadeh , Javad Khaghani , Li Cheng , Hossein Ghanei-Yakhdan , Shohreh Kasaei

In this paper, we present PCNM, a new mobile platform for cellular networks measurements. PCNM is based on a set of techniques that tailors theoretical calculations and simulations to the real cellular network environment. It includes: (a)…

Networking and Internet Architecture · Computer Science 2016-11-17 Tayeb Lemlouma , Yoann Lefebvre , Frédéric Cespedes

Understanding urban mobility patterns and analyzing how people move around cities helps improve the overall quality of life and supports the development of more livable, efficient, and sustainable urban areas. A challenging aspect of this…

Computers and Society · Computer Science 2024-09-05 Prabin Bhandari , Antonios Anastasopoulos , Dieter Pfoser

This paper presents a new algorithm to track mobile objects in different scene conditions. The main idea of the proposed tracker includes estimation, multi-features similarity measures and trajectory filtering. A feature set (distance,…

Computer Vision and Pattern Recognition · Computer Science 2011-06-15 Duc Phu Chau , François Bremond , Monique Thonnat , Etienne Corvee

In this paper, we address the problem of reconstructing coverage maps from path-loss measurements in cellular networks. We propose and evaluate two kernel-based adaptive online algorithms as an alternative to typical offline methods. The…

Networking and Internet Architecture · Computer Science 2019-10-11 Martin Kasparick , Renato L. G. Cavalcante , Stefan Valentin , Slawomir Stanczak , Masahiro Yukawa

In today's day and age, a mobile phone has become a basic requirement needed for anyone to thrive. With the cellular traffic demand increasing so dramatically, it is now necessary to accurately predict the user traffic in cellular networks,…

Machine Learning · Computer Science 2025-07-22 Nikhil Nayak , Rujula Singh R , Rameshwar Garg , Varun Danda , Chandana Kiran , Kaustuv Saha

Extracting information from geographic images and text is crucial for autonomous vehicles to determine in advance the best cell stations to connect to along their future path. Multiple artificial neural network models can address this…

Computation and Language · Computer Science 2023-06-05 Antoine Le Borgne , Xavier Marjou , Fanny Parzysz , Tayeb Lemlouma

As mobile devices with positioning capabilities continue to proliferate, data management for so-called trajectory databases that capture the historical movements of populations of moving objects becomes important. This paper considers the…

Databases · Computer Science 2010-02-05 Hoyoung Jeung , Man Lung Yiu , Xiaofang Zhou , Christian S. Jensen , Heng Tao Shen

Clustering trajectory data attracted considerable attention in the last few years. Most of prior work assumed that moving objects can move freely in an euclidean space and did not consider the eventual presence of an underlying road network…

Machine Learning · Computer Science 2013-10-22 Mohamed Khalil El Mahrsi , Fabrice Rossi

Data volume grows explosively with the proliferation of powerful smartphones and innovative mobile applications. The ability to accurately and extensively monitor and analyze these data is necessary. Much concern in mobile data analysis is…

Computers and Society · Computer Science 2020-09-01 Mohammadhossein Ghahramani , MengChu Zhou , Gang Wang

Similar subtrajectory search is a finer-grained operator that can better capture the similarities between one query trajectory and a portion of a data trajectory than the traditional similar trajectory search, which requires the two checked…

Databases · Computer Science 2023-08-09 Jiabao Jin , Peng Cheng , Lei Chen , Xuemin Lin , Wenjie Zhang