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Accurate travel time estimation is essential for navigation and itinerary planning. While existing research employs probabilistic modeling to assess travel time uncertainty and account for correlations between multiple trips, modeling the…

Machine Learning · Computer Science 2024-11-28 Chen Xu , Qiang Wang , Lijun Sun

Trajectory data generation is an important domain that characterizes the generative process of mobility data. Traditional methods heavily rely on predefined heuristics and distributions and are weak in learning unknown mechanisms. Inspired…

Computer Vision and Pattern Recognition · Computer Science 2020-09-22 Liming Zhang , Liang Zhao , Dieter Pfoser

The widespread use of GPS devices has driven advances in spatiotemporal data mining, enabling machine learning models to simulate human decision making and generate realistic trajectories, addressing both data collection costs and privacy…

Machine Learning · Computer Science 2025-10-09 Zhiyang Zhang , Ningcong Chen , Xin Zhang , Yanhua Li , Shen Su , Hui Lu , Jun Luo

Spatio-temporal trajectories are crucial in various data mining tasks. It is important to develop a versatile trajectory learning method that performs different tasks with high accuracy. This involves effectively extracting two core aspects…

Machine Learning · Computer Science 2024-08-12 Zeyu Zhou , Yan Lin , Haomin Wen , Qisen Xu , Shengnan Guo , Jilin Hu , Youfang Lin , Huaiyu Wan

With the promotion of chatgpt to the public, Large language models indeed showcase remarkable common sense, reasoning, and planning skills, frequently providing insightful guidance. These capabilities hold significant promise for their…

Artificial Intelligence · Computer Science 2023-09-14 Siyao Zhang , Daocheng Fu , Zhao Zhang , Bin Yu , Pinlong Cai

Multi-object tracking (MOT) and trajectory prediction are two critical components in modern 3D perception systems that require accurate modeling of multi-agent interaction. We hypothesize that it is beneficial to unify both tasks under one…

Computer Vision and Pattern Recognition · Computer Science 2021-04-06 Xinshuo Weng , Ye Yuan , Kris Kitani

The ability to generate artificial human movement patterns while meeting location and time constraints is an important problem in the security community, particularly as it enables the study of the analog problem of detecting such patterns…

Logic in Computer Science · Computer Science 2025-02-14 Divyagna Bavikadi , Dyuman Aditya , Devendra Parkar , Paulo Shakarian , Graham Mueller , Chad Parvis , Gerardo I. Simari

Mobile devices continuously interact with cellular base stations, generating massive volumes of signaling records that provide broad coverage for understanding human mobility. However, such records offer only coarse location cues (e.g.,…

Computer Vision and Pattern Recognition · Computer Science 2026-03-30 Ruixing Zhang , Hanzhang Jiang , Leilei Sun , Liangzhe Han , Jibin Wang , Weifeng Lv

Over the years, network traffic analysis and generation have advanced significantly. From traditional statistical methods, the field has progressed to sophisticated deep learning techniques. This progress has improved the ability to detect…

Machine Learning · Computer Science 2024-03-19 Jian Qu , Xiaobo Ma , Jianfeng Li

Trajectory and intention prediction of traffic participants is an important task in automated driving and crucial for safe interaction with the environment. In this paper, we present a new approach to vehicle trajectory prediction based on…

Computer Vision and Pattern Recognition · Computer Science 2018-06-15 Jannik Quehl , Haohao Hu , Sascha Wirges , Martin Lauer

Naturalistic driving trajectories are crucial for the performance of autonomous driving algorithms. However, most of the data is collected in safe scenarios leading to the duplication of trajectories which are easy to be handled by…

Machine Learning · Computer Science 2019-10-04 Wenhao Ding , Mengdi Xu , Ding Zhao

The analysis of spatiotemporal data is increasingly utilized across diverse domains, including transportation, healthcare, and meteorology. In real-world settings, such data often contain missing elements due to issues like sensor…

Machine Learning · Computer Science 2023-11-27 Yakun Chen , Xianzhi Wang , Guandong Xu

Maneuverability and drivability of the teleoperated ground vehicle could be seriously degraded by large communication delays if the delays are not properly compensated. This paper proposes a predicted trajectory guidance control (PTGC)…

Systems and Control · Electrical Eng. & Systems 2022-12-07 Qiang Zhang , Zhouli Xu , Yihang Wang , Lingfang Yang , Xiaolin Song , Zhi Huang

We present a multi-modal trajectory generation and selection algorithm for real-world mapless outdoor navigation in human-centered environments. Such environments contain rich features like crosswalks, grass, and curbs, which are easily…

Robotics · Computer Science 2025-05-19 Daeun Song , Jing Liang , Xuesu Xiao , Dinesh Manocha

Location trajectories provide valuable insights for applications from urban planning to pandemic control. However, mobility data can also reveal sensitive information about individuals, such as political opinions, religious beliefs, or…

Cryptography and Security · Computer Science 2025-02-18 Jesse Merhi , Erik Buchholz , Salil S. Kanhere

Traffic prediction is one of the most significant foundations in Intelligent Transportation Systems (ITS). Traditional traffic prediction methods rely only on historical traffic data to predict traffic trends and face two main challenges.…

Machine Learning · Computer Science 2024-02-06 Chengyang Zhang , Yong Zhang , Qitan Shao , Bo Li , Yisheng Lv , Xinglin Piao , Baocai Yin

Understanding trajectory diversity is a fundamental aspect of addressing practical traffic tasks. However, capturing the diversity of trajectories presents challenges, particularly with traditional machine learning and recurrent neural…

Artificial Intelligence · Computer Science 2023-12-04 Ruyi Feng , Zhibin Li , Bowen Liu , Yan Ding

Tracking a point through a video can be a challenging task due to uncertainty arising from visual obfuscations, such as appearance changes and occlusions. Although current state-of-the-art discriminative models excel in regressing long-term…

Computer Vision and Pattern Recognition · Computer Science 2025-10-27 Mattie Tesfaldet , Adam W. Harley , Konstantinos G. Derpanis , Derek Nowrouzezahrai , Christopher Pal

The digitization of traffic sensing infrastructure has significantly accumulated an extensive traffic data warehouse, which presents unprecedented challenges for transportation analytics. The complexities associated with querying…

Multiagent Systems · Computer Science 2024-05-07 Bingzhang Wang , Zhiyu Cai , Muhammad Monjurul Karim , Chenxi Liu , Yinhai Wang

With the process of urbanization and the rapid growth of population, the issue of traffic congestion has become an increasingly critical concern. Intelligent transportation systems heavily rely on real-time and precise prediction algorithms…

Artificial Intelligence · Computer Science 2025-01-03 Zihao Jing