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In this paper, we study the problem of mobile user profiling, which is a critical component for quantifying users' characteristics in the human mobility modeling pipeline. Human mobility is a sequential decision-making process dependent on…

Artificial Intelligence · Computer Science 2021-01-08 Dongjie Wang , Pengyang Wang , Kunpeng Liu , Yuanchun Zhou , Charles Hughes , Yanjie Fu

Realistic mobility models are fundamental to evaluate the performance of protocols in mobile ad hoc networks. Unfortunately, there are no mobility models that capture the non-homogeneous behaviors in both space and time commonly found in…

Networking and Internet Architecture · Computer Science 2008-10-23 Wei-jen Hsu , Thrasyvoulos Spyropoulos , Konstantinos Psounis , Ahmed Helmy

We introduce an on-ground Pedestrian World Model, a computational model that can predict how pedestrians move around an observer in the crowd on the ground plane, but from just the egocentric-views of the observer. Our model, InCrowdFormer,…

Computer Vision and Pattern Recognition · Computer Science 2023-03-17 Mai Nishimura , Shohei Nobuhara , Ko Nishino

Traffic prediction is a flourishing research field due to its importance in human mobility in the urban space. Despite this, existing studies only focus on short-term prediction of up to few hours in advance, with most being up to one hour…

Machine Learning · Computer Science 2023-03-06 David Alexander Tedjopurnomo , Farhana M. Choudhury , A. K. Qin

Pedestrian trajectory prediction remains a challenge for autonomous systems, particularly due to the intricate dynamics of social interactions. Accurate forecasting requires a comprehensive understanding not only of each pedestrian's…

Computer Vision and Pattern Recognition · Computer Science 2024-12-09 Haleh Damirchi , Ali Etemad , Michael Greenspan

Accurate disease trajectory prediction is critical for early intervention, resource allocation, and improving long-term outcomes. While electronic health records (EHRs) provide a rich longitudinal view of patient health in clinical…

Machine Learning · Computer Science 2026-05-15 Yunying Zhu , Andrew R Weckstein , Kueiyu Joshua Lin , Jie Yang

Vehicle trajectories provide valuable movement information that supports various downstream tasks and powers real-world applications. A desirable trajectory learning model should transfer between different regions and tasks without…

Computer Vision and Pattern Recognition · Computer Science 2024-08-29 Yan Lin , Tonglong Wei , Zeyu Zhou , Haomin Wen , Jilin Hu , Shengnan Guo , Youfang Lin , Huaiyu Wan

Wearable medical sensors (WMSs) are revolutionizing smart healthcare by enabling continuous, real-time monitoring of user physiological signals, especially in the field of consumer healthcare. The integration of WMSs and modern machine…

Machine Learning · Computer Science 2024-10-22 Chia-Hao Li , Niraj K. Jha

The forecasting of entity trajectories at future points in time is a critical capability gap in applications across both Commercial and Defense sectors. Transformers, and specifically Generative Pre-trained Transformer (GPT) networks have…

Machine Learning · Computer Science 2024-02-02 Nicholas Stroh

In this paper, a general moving object trajectories framework is put forward to allow independent applications processing trajectories data benefit from a high level of interoperability, information sharing as well as an efficient answer…

Databases · Computer Science 2012-05-09 Azedine Boulmakoul , Lamia Karim , Ahmed Lbath

The escalation in urban private car ownership has worsened the urban parking predicament, necessitating effective parking availability prediction for urban planning and management. However, the existing prediction methods suffer from low…

Machine Learning · Computer Science 2024-11-05 Yin Huang , Yongqi Dong , Youhua Tang , Li Li

In this paper, we address the problem of forecasting the trajectory of an egocentric camera wearer (ego-person) in crowded spaces. The trajectory forecasting ability learned from the data of different camera wearers walking around in the…

Computer Vision and Pattern Recognition · Computer Science 2022-07-08 Jianing Qiu , Lipeng Chen , Xiao Gu , Frank P. -W. Lo , Ya-Yen Tsai , Jiankai Sun , Jiaqi Liu , Benny Lo

Predicting individual mobility patterns is crucial across various applications. While current methods mainly focus on predicting the next location for personalized services like recommendations, they often fall short in supporting broader…

Artificial Intelligence · Computer Science 2025-08-20 Zongyuan Huang , Weipeng Wang , Shaoyu Huang , Marta C. Gonzalez , Yaohui Jin , Yanyan Xu

We propose an approach to simulating trajectories of multiple interacting agents (road users) based on transformers and probabilistic graphical models (PGMs), and apply it to the Waymo SimAgents challenge. The transformer baseline is based…

Machine Learning · Computer Science 2024-07-01 Xinghua Lou , Meet Dave , Shrinu Kushagra , Miguel Lazaro-Gredilla , Kevin Murphy

Recently developed pretrained models can encode rich world knowledge expressed in multiple modalities, such as text and images. However, the outputs of these models cannot be integrated into algorithms to solve sequential decision-making…

Artificial Intelligence · Computer Science 2024-06-19 Yunhao Yang , Cyrus Neary , Ufuk Topcu

Activity classification has observed great success recently. The performance on small dataset is almost saturated and people are moving towards larger datasets. What leads to the performance gain on the model and what the model has learnt?…

Computer Vision and Pattern Recognition · Computer Science 2019-12-16 Jialing Lyu , Weichao Qiu , Xinyue Wei , Yi Zhang , Alan Yuille , Zheng-Jun Zha

This paper reports on a data-driven, interaction-aware motion prediction approach for pedestrians in environments cluttered with static obstacles. When navigating in such workspaces shared with humans, robots need accurate motion…

Robotics · Computer Science 2018-02-27 Mark Pfeiffer , Giuseppe Paolo , Hannes Sommer , Juan Nieto , Roland Siegwart , Cesar Cadena

Human trajectory data is crucial in urban planning, traffic engineering, and public health. However, directly using real-world trajectory data often faces challenges such as privacy concerns, data acquisition costs, and data quality. A…

Machine Learning · Computer Science 2025-11-05 Qingyue Long , Can Rong , Tong Li , Yong Li

World model-based searching and planning are widely recognized as a promising path toward human-level physical intelligence. However, current driving world models primarily rely on video diffusion models, which specialize in visual…

Computer Vision and Pattern Recognition · Computer Science 2024-12-25 Yuntao Chen , Yuqi Wang , Zhaoxiang Zhang

Understanding human mobility is essential for the development of smart cities and social behavior research. Human mobility models may be used in numerous applications, including pandemic control, urban planning, and traffic management. The…

Social and Information Networks · Computer Science 2022-09-09 Yisheng Alison Zheng , Amani Abusafia , Abdallah Lakhdari , Shing Tai Tony Lui , Athman Bouguettaya