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In order to enhance the performance of Transformer models for long-term multivariate forecasting while minimizing computational demands, this paper introduces the Joint Time-Frequency Domain Transformer (JTFT). JTFT combines time and…

机器学习 · 计算机科学 2023-10-31 Yushu Chen , Shengzhuo Liu , Jinzhe Yang , Hao Jing , Wenlai Zhao , Guangwen Yang

Predicting the future motion of actors in a traffic scene is a crucial part of any autonomous driving system. Recent research in this area has focused on trajectory prediction approaches that optimize standard trajectory error metrics. In…

机器人学 · 计算机科学 2021-05-03 Harshayu Girase , Jerrick Hoang , Sai Yalamanchi , Micol Marchetti-Bowick

In real-world applications, GPS trajectories often suffer from low sampling rates, with large and irregular intervals between consecutive GPS points. This sparse characteristic presents challenges for their direct use in GPS-based systems.…

机器学习 · 计算机科学 2025-05-21 Tian Sun , Yuqi Chen , Baihua Zheng , Weiwei Sun

Effective spatio-temporal representation is fundamental to modeling, understanding, and predicting dynamics in videos. The atomic unit of a video, the pixel, traces a continuous 3D trajectory over time, serving as the primitive element of…

计算机视觉与模式识别 · 计算机科学 2025-10-16 Xinhang Liu , Yuxi Xiao , Donny Y. Chen , Jiashi Feng , Yu-Wing Tai , Chi-Keung Tang , Bingyi Kang

Understanding multi-agent movement is critical across various fields. The conventional approaches typically focus on separate tasks such as trajectory prediction, imputation, or spatial-temporal recovery. Considering the unique formulation…

计算机视觉与模式识别 · 计算机科学 2025-02-28 Yi Xu , Yun Fu

Robust object tracking requires knowledge of tracked objects' appearance, motion and their evolution over time. Although motion provides distinctive and complementary information especially for fast moving objects, most of the recent…

计算机视觉与模式识别 · 计算机科学 2022-04-12 Hasan Saribas , Hakan Cevikalp , Okan Köpüklü , Bedirhan Uzun

Trajectory representation learning (TRL) maps trajectories to vectors that can then be used for various downstream tasks, including trajectory similarity computation, trajectory classification, and travel-time estimation. However, existing…

机器学习 · 计算机科学 2024-12-02 Silin Zhou , Shuo Shang , Lisi Chen , Christian S. Jensen , Panos Kalnis

Trajectory prediction plays a vital role in automotive radar systems, facilitating precise tracking and decision-making in autonomous driving. Generative adversarial networks with the ability to learn a distribution over future trajectories…

计算机视觉与模式识别 · 计算机科学 2023-11-07 Peiyuan Zhu , Fengxia Han , Hao Deng

Trajectory prediction is a fundamental and challenging task for numerous applications, such as autonomous driving and intelligent robots. Currently, most of existing work treat the pedestrian trajectory as a series of fixed two-dimensional…

计算机视觉与模式识别 · 计算机科学 2021-03-17 Pei Lv , Hui Wei , Tianxin Gu , Yuzhen Zhang , Xiaoheng Jiang , Bing Zhou , Mingliang Xu

Latent Diffusion Models (LDMs) are generally trained at fixed resolutions, limiting their capability when scaling up to high-resolution images. While training-based approaches address this limitation by training on high-resolution datasets,…

计算机视觉与模式识别 · 计算机科学 2025-07-30 Sangmin Han , Jinho Jeong , Jinwoo Kim , Seon Joo Kim

Predicting the future trajectories of pedestrians is a challenging problem that has a range of application, from crowd surveillance to autonomous driving. In literature, methods to approach pedestrian trajectory prediction have evolved,…

计算机视觉与模式识别 · 计算机科学 2021-09-17 Simone Zamboni , Zekarias Tilahun Kefato , Sarunas Girdzijauskas , Noren Christoffer , Laura Dal Col

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…

机器学习 · 计算机科学 2025-07-02 Lihuan Li , Hao Xue , Shuang Ao , Yang Song , Flora Salim

Trajectory similarity computation is an essential technique for analyzing moving patterns of spatial data across various applications such as traffic management, wildlife tracking, and location-based services. Modern methods often apply…

机器学习 · 计算机科学 2024-06-21 Lihuan Li , Hao Xue , Yang Song , Flora Salim

Tracking of dynamic people in cluttered and crowded human-centered environments is a challenging robotics problem due to the presence of intraclass variations including occlusions, pose deformations, and lighting variations. This paper…

计算机视觉与模式识别 · 计算机科学 2024-11-07 Angus Fung , Beno Benhabib , Goldie Nejat

Traffic flow prediction is a typical spatio-temporal prediction problem and has a wide range of applications. The core challenge lies in modeling the underlying complex spatio-temporal dependencies. Various methods have been proposed, and…

机器学习 · 计算机科学 2026-01-16 Yiqing Zou , Hanning Yuan , Qianyu Yang , Ziqiang Yuan , Shuliang Wang , Sijie Ruan

Multi-agent trajectory prediction, as a critical task in modeling complex interactions of objects in dynamic systems, has attracted significant research attention in recent years. Despite the promising advances, existing studies all follow…

人工智能 · 计算机科学 2024-10-21 Tangwen Qian , Yile Chen , Gao Cong , Yongjun Xu , Fei Wang

Vehicle trajectory prediction is essential for enabling safety-critical intelligent transportation systems (ITS) applications used in management and operations. While there have been some promising advances in the field, there is a need for…

机器学习 · 计算机科学 2022-05-27 Vinit Katariya , Mohammadreza Baharani , Nichole Morris , Omidreza Shoghli , Hamed Tabkhi

A profound understanding of inter-agent relationships and motion behaviors is important to achieve high-quality planning when navigating in complex scenarios, especially at urban traffic intersections. We present a trajectory prediction…

计算机视觉与模式识别 · 计算机科学 2022-07-22 Yuzhen Zhang , Wentong Wang , Weizhi Guo , Pei Lv , Mingliang Xu , Wei Chen , Dinesh Manocha

While data-driven trajectory prediction has enhanced the reliability of autonomous driving systems, it still struggles with rarely observed long-tail scenarios. Prior works addressed this by modifying model architectures, such as using…

计算机视觉与模式识别 · 计算机科学 2025-07-31 Daehee Park , Monu Surana , Pranav Desai , Ashish Mehta , Reuben MV John , Kuk-Jin Yoon

Road network and trajectory representation learning are essential for traffic systems since the learned representation can be directly used in various downstream tasks (e.g., traffic speed inference, and travel time estimation). However,…

机器学习 · 计算机科学 2023-02-14 Zhenyu Mao , Ziyue Li , Dedong Li , Lei Bai , Rui Zhao