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Trajectory computing is a pivotal domain encompassing trajectory data management and mining, garnering widespread attention due to its crucial role in various practical applications such as location services, urban traffic, and public…

Trajectory Representation Learning (TRL) is a powerful tool for spatial-temporal data analysis and management. TRL aims to convert complicated raw trajectories into low-dimensional representation vectors, which can be applied to various…

Machine Learning · Computer Science 2024-03-08 Jiawei Jiang , Dayan Pan , Houxing Ren , Xiaohan Jiang , Chao Li , Jingyuan Wang

The generation of realistic and controllable GPS trajectories is a fundamental task for applications in urban planning, mobility simulation, and privacy-preserving data sharing. However, existing methods face a two-fold challenge: they lack…

Artificial Intelligence · Computer Science 2026-05-05 Yuanshao Zhu , Yuxuan Liang , Xiangyu Zhao , Liang Han , Xinwei Fang , Xun Zhou , Xuetao Wei , James Jianqiao Yu

The ability to accurately predict the trajectory of surrounding vehicles is a critical hurdle to overcome on the journey to fully autonomous vehicles. To address this challenge, we pioneer a novel behavior-aware trajectory prediction model…

In the information retrieval (IR) area, dense retrieval (DR) models use deep learning techniques to encode queries and passages into embedding space to compute their semantic relations. It is important for DR models to balance both…

Information Retrieval · Computer Science 2024-08-23 Hanqi Zhang , Chong Chen , Lang Mei , Qi Liu , Jiaxin Mao

Network traffic classification is a crucial research area aiming to enhance service quality, streamline network management, and bolster cybersecurity. To address the growing complexity of transmission encryption techniques, various machine…

Machine Learning · Computer Science 2024-10-22 Tongze Wang , Xiaohui Xie , Wenduo Wang , Chuyi Wang , Youjian Zhao , Yong Cui

We introduce Masked Trajectory Models (MTM) as a generic abstraction for sequential decision making. MTM takes a trajectory, such as a state-action sequence, and aims to reconstruct the trajectory conditioned on random subsets of the same…

Machine Learning · Computer Science 2023-05-05 Philipp Wu , Arjun Majumdar , Kevin Stone , Yixin Lin , Igor Mordatch , Pieter Abbeel , Aravind Rajeswaran

Trajectory prediction aims to estimate an entity's future path using its current position and historical movement data, benefiting fields like autonomous navigation, robotics, and human movement analytics. Deep learning approaches have…

Machine Learning · Computer Science 2025-04-08 Amirhossein Nadiri , Jing Li , Ali Faraji , Ghadeer Abuoda , Manos Papagelis

Trajectory planning is a core task in autonomous driving, requiring the prediction of safe and comfortable paths across diverse scenarios. Integrating Multi-modal Large Language Models (MLLMs) with Reinforcement Learning (RL) has shown…

Robotics · Computer Science 2026-02-02 Xidong Li , Mingyu Guo , Chenchao Xu , Bailin Li , Wenjing Zhu , Yangang Zou , Rui Chen , Zehuan Wang

Autonomous vehicles are expected to drive in complex scenarios with several independent non cooperating agents. Path planning for safely navigating in such environments can not just rely on perceiving present location and motion of other…

Computer Vision and Pattern Recognition · Computer Science 2021-06-07 Francesco Marchetti , Federico Becattini , Lorenzo Seidenari , Alberto Del Bimbo

Urban mobility is naturally expressed both as trajectories in space and as natural-language descriptions of travel intent, constraints, and preferences. However, prior work rarely evaluates these two modalities together on the same…

Artificial Intelligence · Computer Science 2026-05-12 Lihuan Li , Wilson Wongso , Baiyu Chen , Hao Xue , Ruiyi Yang , Yifan Duan , Xiachong Lin , Yang Song , Flora Salim

Trajectory data is essential for various applications as it records the movement of vehicles. However, publicly available trajectory datasets remain limited in scale due to privacy concerns, which hinders the development of trajectory data…

Machine Learning · Computer Science 2024-09-12 Tonglong Wei , Youfang Lin , Shengnan Guo , Yan Lin , Yiheng Huang , Chenyang Xiang , Yuqing Bai , Huaiyu Wan

Trajectory prediction has been a long-standing problem in intelligent systems like autonomous driving and robot navigation. Models trained on large-scale benchmarks have made significant progress in improving prediction accuracy. However,…

Robotics · Computer Science 2023-06-21 Hao Cheng , Mengmeng Liu , Lin Chen , Hellward Broszio , Monika Sester , Michael Ying Yang

Realistic and diverse simulation scenarios with reactive and feasible agent behaviors can be used for validation and verification of self-driving system performance without relying on expensive and time-consuming real-world testing.…

Robotics · Computer Science 2022-04-01 Qichao Zhang , Yinfeng Gao , Yikang Zhang , Youtian Guo , Dawei Ding , Yunpeng Wang , Peng Sun , Dongbin Zhao

Human motion prediction is essential for the safe and smooth operation of mobile service robots and intelligent vehicles around people. Commonly used neural network-based approaches often require large amounts of complete trajectories to…

Robotics · Computer Science 2023-06-07 Yufei Zhu , Andrey Rudenko , Tomasz P. Kucner , Achim J. Lilienthal , Martin Magnusson

Grasp detection is a fundamental robotic task critical to the success of many industrial applications. However, current language-driven models for this task often struggle with cluttered images, lengthy textual descriptions, or slow…

Robotics · Computer Science 2024-09-24 Huy Hoang Nguyen , An Vuong , Anh Nguyen , Ian Reid , Minh Nhat Vu

Predicting future trajectories for other road agents is an essential task for autonomous vehicles. Established trajectory prediction methods primarily use agent tracks generated by a detection and tracking system and HD map as inputs. In…

Computer Vision and Pattern Recognition · Computer Science 2024-07-18 Seokha Moon , Hyun Woo , Hongbeen Park , Haeji Jung , Reza Mahjourian , Hyung-gun Chi , Hyerin Lim , Sangpil Kim , Jinkyu Kim

Social robot navigation (SRN) is a relevant problem that involves navigating a pedestrian-rich environment in a socially acceptable manner. It is an essential part of making social robots effective in pedestrian-rich settings. The use cases…

We introduce VideoMamba, a novel adaptation of the pure Mamba architecture, specifically designed for video recognition. Unlike transformers that rely on self-attention mechanisms leading to high computational costs by quadratic complexity,…

Computer Vision and Pattern Recognition · Computer Science 2024-07-12 Jinyoung Park , Hee-Seon Kim , Kangwook Ko , Minbeom Kim , Changick Kim

Recent advances in sensor and mobile devices have enabled an unprecedented increase in the availability and collection of urban trajectory data, thus increasing the demand for more efficient ways to manage and analyze the data being…

Databases · Computer Science 2020-12-15 Sheng Wang , Zhifeng Bao , J. Shane Culpepper , Gao Cong