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Vehicle GPS trajectories record how vehicles move over time, storing valuable travel semantics, including movement patterns and travel purposes. Learning travel semantics effectively and efficiently is crucial for real-world applications of…

Machine Learning · Computer Science 2025-10-22 Yichen Liu , Yan Lin , Shengnan Guo , Zeyu Zhou , Youfang Lin , Huaiyu Wan

Motion prediction is crucial for autonomous driving, as it enables accurate forecasting of future vehicle trajectories based on historical inputs. This paper introduces Trajectory Mamba, a novel efficient trajectory prediction framework…

Computer Vision and Pattern Recognition · Computer Science 2025-03-17 Yizhou Huang , Yihua Cheng , Kezhi Wang

Modeling trajectory data with generic-purpose dense representations has become a prevalent paradigm for various downstream applications, such as trajectory classification, travel time estimation and similarity computation. However, existing…

Artificial Intelligence · Computer Science 2024-10-21 Tangwen Qian , Junhe Li , Yile Chen , Gao Cong , Tao Sun , Fei Wang , Yongjun Xu

Spatiotemporal trajectory data is crucial for various applications. However, issues such as device malfunctions and network instability often cause sparse trajectories, leading to lost detailed movement information. Recovering the missing…

Machine Learning · Computer Science 2025-02-12 Tonglong Wei , Yan Lin , Youfang Lin , Shengnan Guo , Jilin Hu , Haitao Yuan , Gao Cong , Huaiyu Wan

Predicting the future trajectories of dynamic traffic actors is a cornerstone task in autonomous driving. Though existing notable efforts have resulted in impressive performance improvements, a gap persists in scene cognitive and…

Computer Vision and Pattern Recognition · Computer Science 2024-05-09 Zhengxing Lan , Hongbo Li , Lingshan Liu , Bo Fan , Yisheng Lv , Yilong Ren , Zhiyong Cui

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

Online video super-resolution (VSR) is an important technique for many real-world video processing applications, which aims to restore the current high-resolution video frame based on temporally previous frames. Most of the existing online…

Computer Vision and Pattern Recognition · Computer Science 2026-02-25 Qiang Zhu , Xiandong Meng , Yuxian Jiang , Fan Zhang , David Bull , Shuyuan Zhu , Bing Zeng , Ronggang Wang

Future trajectory prediction of a tracked pedestrian from an egocentric perspective is a key task in areas such as autonomous driving and robot navigation. The challenge of this task lies in the complex dynamic relative motion between the…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Yusheng Peng , Gaofeng Zhang , Liping Zheng

Trajectory prediction is a pivotal component of autonomous driving systems, enabling the application of accumulated movement experience to current scenarios. Although most existing methods concentrate on learning continuous representations…

Computer Vision and Pattern Recognition · Computer Science 2024-10-04 Hang Guo , Yuzhen Zhang , Tianci Gao , Junning Su , Pei Lv , Mingliang Xu

Traffic flow estimation (TFE) is crucial for urban intelligent traffic systems. While traditional on-road detectors are hindered by limited coverage and high costs, cloud computing and data mining of vehicular network data, such as driving…

Artificial Intelligence · Computer Science 2024-07-12 Doncheng Yuan , Jianzhe Xue , Jinshan Su , Wenchao Xu , Haibo Zhou

Transformer-based trajectory optimization methods have demonstrated exceptional performance in offline Reinforcement Learning (offline RL). Yet, it poses challenges due to substantial parameter size and limited scalability, which is…

Machine Learning · Computer Science 2024-10-29 Yang Dai , Oubo Ma , Longfei Zhang , Xingxing Liang , Shengchao Hu , Mengzhu Wang , Shouling Ji , Jincai Huang , Li Shen

This paper introduces a trajectory prediction model tailored for autonomous driving, focusing on capturing complex interactions in dynamic traffic scenarios without reliance on high-definition maps. The model, termed MFTraj, harnesses…

Robotics · Computer Science 2024-05-03 Haicheng Liao , Zhenning Li , Chengyue Wang , Huanming Shen , Bonan Wang , Dongping Liao , Guofa Li , Chengzhong Xu

Traffic flow prediction, a critical aspect of intelligent transportation systems, has been increasingly popular in the field of artificial intelligence, driven by the availability of extensive traffic data. The current challenges of traffic…

Machine Learning · Computer Science 2024-05-21 Zhiqi Shao , Michael G. H. Bell , Ze Wang , D. Glenn Geers , Haoning Xi , Junbin Gao

In the context of multi-agent reinforcement learning, generalization is a challenge to solve various tasks that may require different joint policies or coordination without relying on policies specialized for each task. We refer to this…

Machine Learning · Computer Science 2025-03-04 Hyungho Na , Kwanghyeon Lee , Sumin Lee , Il-Chul Moon

Learning human motion based on a time-dependent input signal presents a challenging yet impactful task with various applications. The goal of this task is to generate or estimate human movement that consistently reflects the temporal…

Computer Vision and Pattern Recognition · Computer Science 2025-10-15 Quang Nguyen , Tri Le , Baoru Huang , Minh Nhat Vu , Ngan Le , Thieu Vo , Anh Nguyen

Trajectory prediction serves as a critical functionality in autonomous driving, enabling the anticipation of future motion paths for traffic participants such as vehicles and pedestrians, which is essential for driving safety. Although…

Robotics · Computer Science 2025-09-16 Wei Dai , Shengen Wu , Wei Wu , Zhenhao Wang , Sisuo Lyu , Haicheng Liao , Limin Yu , Weiping Ding , Runwei Guan , Yutao Yue

Language models have demonstrated impressive ability in context understanding and generative performance. Inspired by the recent success of language foundation models, in this paper, we propose LMTraj (Language-based Multimodal Trajectory…

Computation and Language · Computer Science 2024-03-28 Inhwan Bae , Junoh Lee , Hae-Gon Jeon

Accurate traffic prediction plays a vital role in intelligent transportation systems by enabling efficient routing, congestion mitigation, and proactive traffic control. However, forecasting is challenging due to the combined effects of…

Machine Learning · Computer Science 2025-07-08 Mohamed Hamad , Mohamed Mabrok , Nizar Zorba

Trajectory representation learning is a fundamental task for applications in fields including smart city, and urban planning, as it facilitates the utilization of trajectory data (e.g., vehicle movements) for various downstream…

Machine Learning · Computer Science 2025-01-03 Stefan Schestakov , Simon Gottschalk

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…

Machine Learning · Computer Science 2024-12-02 Silin Zhou , Shuo Shang , Lisi Chen , Christian S. Jensen , Panos Kalnis
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