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Collectiveness motions of crowd systems have attracted a great deal of attentions in recently years. In this paper, we try to measure the collectiveness of a crowd system by the proposed node clique learning method. The proposed method is a…

Computer Vision and Pattern Recognition · Computer Science 2016-12-20 Weiya Ren

Ultra-dense crowds, in which physical contact between people cannot be avoided, pose major safety concerns. Nevertheless, the underlying dynamics driving their collective behaviours remain poorly understood. Existing dense crowd models,…

Physics and Society · Physics 2026-01-12 Thomas Chatagnon , Mohcine Chraibi , Julien Pettré , Armin Seyfried , Antoine Tordeux

In real-world social networks, there is an increasing interest in tracking the evolution of groups of users and detecting the various changes they are liable to undergo. Several approaches have been proposed for this. In studying these…

Social and Information Networks · Computer Science 2019-03-20 Ziwei He , Etienne Gael Tajeuna , Shengrui Wang , Mohamed Bouguessa

Pedestrians in crowds frequently move as part of small groups, constituting up to 70% of individuals. Dyads (groups of two) are the most frequent. Understanding quantitatively the dynamics of dyads walking in crowds is therefore an…

Physics and Society · Physics 2025-11-18 Chiel van der Laan , Alessandro Corbetta

As the population of world is increasing, and even more concentrated in urban areas, ensuring public safety is becoming a taunting job for security personnel and crowd managers. Mass events like sports, festivals, concerts, political…

Computer Vision and Pattern Recognition · Computer Science 2017-09-08 Sultan Daud Khan , Muhammad Saqib , Michael Blumenstein

Human crowds often bear a striking resemblance to interacting particle systems, and this has prompted many researchers to describe pedestrian dynamics in terms of interaction forces and potential energies. The correct quantitative form of…

Physics and Society · Physics 2014-12-04 Ioannis Karamouzas , Brian Skinner , Stephen J. Guy

The novel COVID-19 pandemic is a current, major global health threat. Up till now, there is no fully approved pharmacological treatment or a vaccine. In this study, simple mathematical models were employed to examine the dynamics of…

Physics and Society · Physics 2020-12-25 Ahmed S. Elgazzar

We introduce a method for generating realistic pedestrian trajectories and full-body animations that can be controlled to meet user-defined goals. We draw on recent advances in guided diffusion modeling to achieve test-time controllability…

Computer Vision and Pattern Recognition · Computer Science 2023-04-05 Davis Rempe , Zhengyi Luo , Xue Bin Peng , Ye Yuan , Kris Kitani , Karsten Kreis , Sanja Fidler , Or Litany

Management of crowd information in public transportation (PT) systems is crucial, both to foster sustainable mobility, by increasing the user's comfort and satisfaction during normal operation, as well as to cope with emergency situations,…

Computers and Society · Computer Science 2022-11-18 Donatella Darsena , Giacinto Gelli , Ivan Iudice , Francesco Verde

Social navigation and pedestrian behavior research has shifted towards machine learning-based methods and converged on the topic of modeling inter-pedestrian interactions and pedestrian-robot interactions. For this, large-scale datasets…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Allan Wang , Daisuke Sato , Yasser Corzo , Sonya Simkin , Abhijat Biswas , Aaron Steinfeld

Predicting the collective motion of a group of pedestrians (a crowd) under the vehicle influence is essential for the development of autonomous vehicles to deal with mixed urban scenarios where interpersonal interaction and vehicle-crowd…

Computer Vision and Pattern Recognition · Computer Science 2019-04-23 Dongfang Yang , Linhui Li , Keith Redmill , Ümit Özgüner

Socio-spatial segregation is the physical separation of different social, economic, or demographic groups within a geographic space, often resulting in unequal access to resources, services, and opportunities. The literature has…

Social and Information Networks · Computer Science 2025-01-27 Yuan Liao , Jorge Gil , Sonia Yeh , Rafael H. M. Pereira , Laura Alessandretti

Implementing a lockdown for disease mitigation is a balancing act: Non-pharmaceutical interventions can reduce disease transmission significantly, but interventions also have considerable societal costs. Therefore, decision-makers need near…

Data Analysis, Statistics and Probability · Physics 2023-02-01 Andreas Koher , Frederik Jørgensen , Michael Bang Petersen , Sune Lehmann

Motion planning in uncertain environments like complex urban areas is a key challenge for autonomous vehicles (AVs). The aim of our research is to investigate how AVs can navigate crowded, unpredictable scenarios with multiple pedestrians…

Robotics · Computer Science 2026-02-02 Korbinian Moller , Truls Nyberg , Jana Tumova , Johannes Betz

Multi-object tracking is a classic field in computer vision. Among them, pedestrian tracking has extremely high application value and has become the most popular research category. Existing methods mainly use motion or appearance…

Computer Vision and Pattern Recognition · Computer Science 2025-07-04 Teng Fu , Yuwen Chen , Zhuofan Chen , Mengyang Zhao , Bin Li , Xiangyang Xue

This paper proposes a novel approach for detecting groups of people that walk "together" (group mobility) as well as the people who walk "alone" (individual movements) using wireless signals. We exploit multiple wireless sniffers to…

Networking and Internet Architecture · Computer Science 2018-08-06 Gürkan Solmaz , Fang-Jing Wu

The coronavirus (COVID-19) has appeared as the greatest challenge due to its continuous structural evolution as well as the absence of proper antidotes for this particular virus. The virus mainly spreads and replicates itself among mass…

Computers and Society · Computer Science 2020-07-07 Md. Tanvir Rahman , Risala T. Khan , Muhammad R. A. Khandaker , Md. Sifat Ar Salan

The research team has utilized an integrated dataset, consisting of anonymized location data, COVID-19 case data, and census population information, to study the impact of COVID-19 on human mobility. The study revealed that statistics…

Computers and Society · Computer Science 2020-05-01 Sepehr Ghader , Jun Zhao , Minha Lee , Weiyi Zhou , Guangchen Zhao , Lei Zhang

Perceiving humans in the context of Intelligent Transportation Systems (ITS) often relies on multiple cameras or expensive LiDAR sensors. In this work, we present a new cost-effective vision-based method that perceives humans' locations in…

Computer Vision and Pattern Recognition · Computer Science 2021-05-04 Lorenzo Bertoni , Sven Kreiss , Alexandre Alahi

In high-density crowds, local motion can propagate, amplify, and lead to macroscopic phenomena, including 'density waves'. These density waves only occur when individuals interact, and impulses are transferred to neighbours. How this…

Physics and Society · Physics 2024-03-01 Sina Feldmann , Thomas Chatagnon , Juliane Adrian , Julien Pettré , Armin Seyfried