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Trajectory data combines the complexities of time series, spatial data, and (sometimes irrational) movement behavior. As data availability and computing power have increased, so has the popularity of deep learning from trajectory data. This…

Machine Learning · Computer Science 2025-04-02 Anita Graser , Anahid Jalali , Jasmin Lampert , Axel Weißenfeld , Krzysztof Janowicz

Human trajectory forecasting requires capturing the multimodal nature of pedestrian behavior. However, existing approaches suffer from prior misalignment. Their learned or fixed priors often fail to capture the full distribution of…

Computer Vision and Pattern Recognition · Computer Science 2026-04-15 Chao Li , Rui Zhang , Siyuan Huang , Xian Zhong , Hongbo Jiang

Performing trajectory design for humanoid robots with high degrees of freedom is computationally challenging. The trajectory design process also often involves carefully selecting various hyperparameters and requires a good initial guess…

Robotics · Computer Science 2024-12-18 Bohao Zhang , Ram Vasudevan

Effective understanding of the environment and accurate trajectory prediction of surrounding dynamic obstacles are indispensable for intelligent mobile systems (like autonomous vehicles and social robots) to achieve safe and high-quality…

Computer Vision and Pattern Recognition · Computer Science 2020-02-19 Jiachen Li , Hengbo Ma , Zhihao Zhang , Masayoshi Tomizuka

Efficient and accurate motion prediction is crucial for ensuring safety and informed decision-making in autonomous driving, particularly under dynamic real-world conditions that necessitate multi-modal forecasts. We introduce TrajFlow, a…

Computer Vision and Pattern Recognition · Computer Science 2025-07-08 Qi Yan , Brian Zhang , Yutong Zhang , Daniel Yang , Joshua White , Di Chen , Jiachao Liu , Langechuan Liu , Binnan Zhuang , Shaoshuai Shi , Renjie Liao

The study of trajectories is often a core task in several research fields. In environmental modelling, trajectories are crucial to study fluid pollution, animal migrations, oil slick patterns or land movements. In this contribution, we…

Computation · Statistics 2022-09-23 A. Reyes , G. Viera-López , J. J. Morgado-Vega , E. Altshuler

In recent years, a large number of research efforts aimed at the development of machine learning models to predict complex spatial-temporal mobility patterns and their impact on road traffic and infrastructure. However, the utility of these…

Human-Computer Interaction · Computer Science 2020-08-04 Nicolas Tempelmeier , Anzumana Sander , Udo Feuerhake , Martin Löhdefink , Elena Demidova

The vast increase in our ability to obtain and store trajectory data necessitates trajectory analytics techniques to extract useful information from this data. Pair-wise distance functions are a foundation building block for common…

Databases · Computer Science 2018-12-19 Pedram Gharani , Kenrick Fernande , Vineet Raghu

The representation of urban trajectory data plays a critical role in effectively analyzing spatial movement patterns. Despite considerable progress, the challenge of designing trajectory representations that can capture diverse and…

Machine Learning · Computer Science 2025-07-02 Lihuan Li , Hao Xue , Shuang Ao , Yang Song , Flora Salim

Vision-based trajectory prediction is an important task that supports safe and intelligent behaviours in autonomous systems. Many advanced approaches have been proposed over the years with improved spatial and temporal feature extraction.…

Robotics · Computer Science 2025-03-27 Renhao Huang , Hao Xue , Maurice Pagnucco , Flora Salim , Yang Song

In recent years, with the continuous advancement of deep learning and the emergence of large-scale human motion datasets, human motion prediction technology has gradually gained prominence in various fields such as human-computer…

Computer Vision and Pattern Recognition · Computer Science 2023-12-12 Tenghao Deng , Yan Sun

Integrated and efficient mobility requires data sharing among the involved stakeholders. In this direction, regulators and transport authorities have been defining policies to foster the digitalisation and online publication of mobility…

Human mobility patterns refer to the regularities and trends in the way people move, travel, or navigate through different geographical locations over time. Detecting human mobility patterns is essential for a variety of applications,…

Social and Information Networks · Computer Science 2023-05-23 Yisheng Alison Zheng , Abdallah Lakhdari , Amani Abusafia , Shing Tai Tony Lui , Athman Bouguettaya

Intelligent Transportation Systems increasingly depend on heterogeneous data from roadside cameras, UAV imagery, LiDAR, and in-vehicle sensors, yet the lack of unified data standards, model interfaces, and evaluation protocols across these…

Advances in perception for self-driving cars have accelerated in recent years due to the availability of large-scale datasets, typically collected at specific locations and under nice weather conditions. Yet, to achieve the high safety…

With the fast development of AI-related techniques, the applications of trajectory prediction are no longer limited to easier scenes and trajectories. More and more trajectories with different forms, such as coordinates, bounding boxes, and…

Computer Vision and Pattern Recognition · Computer Science 2024-12-04 Beihao Xia , Conghao Wong , Duanquan Xu , Qinmu Peng , Xinge You

Sparsity is a common issue in many trajectory datasets, including human mobility data. This issue frequently brings more difficulty to relevant learning tasks, such as trajectory imputation and prediction. Nowadays, little existing work…

Machine Learning · Computer Science 2023-01-13 Kyle K. Qin , Yongli Ren , Wei Shao , Brennan Lake , Filippo Privitera , Flora D. Salim

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

The abundance of vehicle trajectory data offers a new opportunity to compute driving routes between origins and destinations. Current graph-based routing pipelines, while effective, involve substantial costs in constructing, maintaining,…

Databases · Computer Science 2024-11-05 Maria Despoina Siampou , Chrysovalantis Anastasiou , John Krumm , Cyrus Shahabi

Forecasting pedestrians' future motions is essential for autonomous driving systems to safely navigate in urban areas. However, existing prediction algorithms often overly rely on past observed trajectories and tend to fail around abrupt…

Computer Vision and Pattern Recognition · Computer Science 2022-03-07 Dongxu Guo , Taylor Mordan , Alexandre Alahi
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