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Gait recognition holds the promise of robustly identifying subjects based on walking patterns instead of appearance information. While previous approaches have performed well for curated indoor data, they tend to underperform in…

Computer Vision and Pattern Recognition · Computer Science 2024-10-15 Yuxiang Guo , Siyuan Huang , Ram Prabhakar , Chun Pong Lau , Rama Chellappa , Cheng Peng

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

Recommender systems in multi-behavior domains, such as advertising and e-commerce, aim to guide users toward high-value but inherently sparse conversions. Leveraging auxiliary behaviors (e.g., clicks, likes, shares) is therefore essential.…

Information Retrieval · Computer Science 2025-11-06 Zhefan Wang , Guokai Yan , Jinbei Yu , Siyu Gu , Jingyan Chen , Peng Jiang , Zhiqiang Guo , Min Zhang

Zero-shot learning (ZSL) aims to learn models that can recognize unseen image semantics based on the training of data with seen semantics. Recent studies either leverage the global image features or mine discriminative local patch features…

Computer Vision and Pattern Recognition · Computer Science 2022-03-30 De Cheng , Gerong Wang , Bo Wang , Qiang Zhang , Jungong Han , Dingwen Zhang

Many learning tasks involve multi-modal data streams, where continuous data from different modes convey a comprehensive description about objects. A major challenge in this context is how to efficiently interpret multi-modal information in…

Machine Learning · Computer Science 2020-07-24 Amila Silva , Shanika Karunasekera , Christopher Leckie , Ling Luo

Trajectory representation learning plays a pivotal role in supporting various downstream tasks. Traditional methods in order to filter the noise in GPS trajectories tend to focus on routing-based methods used to simplify the trajectories.…

Machine Learning · Computer Science 2024-02-28 Zhipeng Ma , Zheyan Tu , Xinhai Chen , Yan Zhang , Deguo Xia , Guyue Zhou , Yilun Chen , Yu Zheng , Jiangtao Gong

Generative models have shown promising results in capturing human mobility characteristics and generating synthetic trajectories. However, it remains challenging to ensure that the generated geospatial mobility data is semantically…

Machine Learning · Computer Science 2025-10-28 Ammar Haydari , Dongjie Chen , Zhengfeng Lai , Michael Zhang , Chen-Nee Chuah

Trajectory data mining is crucial for smart city management. However, collecting large-scale trajectory datasets is challenging due to factors such as commercial conflicts and privacy regulations. Therefore, we urgently need trajectory…

Machine Learning · Computer Science 2025-02-04 Jingyuan Wang , Yujing Lin , Yudong Li

Handwritten Text Recognition (HTR) is a task of central importance in the field of document image understanding. State-of-the-art methods for HTR require the use of extensive annotated sets for training, making them impractical for…

Computer Vision and Pattern Recognition · Computer Science 2025-09-23 Petros Georgoulas Wraight , Giorgos Sfikas , Ioannis Kordonis , Petros Maragos , George Retsinas

Trajectory generation and prediction are two interwoven tasks that play important roles in planner evaluation and decision making for intelligent vehicles. Most existing methods focus on one of the two and are optimized to directly output…

Robotics · Computer Science 2022-11-02 Ruochen Jiao , Xiangguo Liu , Bowen Zheng , Dave Liang , Qi Zhu

Learning structured task representations from human demonstrations is essential for understanding long-horizon manipulation behaviors, particularly in bimanual settings where action ordering, object involvement, and interaction geometry can…

Robotics · Computer Science 2026-01-19 Franziska Herbert , Vignesh Prasad , Han Liu , Dorothea Koert , Georgia Chalvatzaki

Landmarks are central to how people navigate, but most navigation technologies do not incorporate them into their representations. We propose the landmark graph generation task (creating landmark-based spatial representations from natural…

Artificial Intelligence · Computer Science 2020-02-07 Christopher M Cervantes

Real-time network traffic forecasting is crucial for network management and early resource allocation. Existing network traffic forecasting approaches operate under the assumption that the network traffic data is fully observed. However, in…

Networking and Internet Architecture · Computer Science 2025-06-12 Lei Deng , Wenhan Xu , Jingwei Li , Danny H. K. Tsang

Learning visual representations from observing actions to benefit robot visuo-motor policy generation is a promising direction that closely resembles human cognitive function and perception. Motivated by this, and further inspired by…

Driving in a dynamic, multi-agent, and complex urban environment is a difficult task requiring a complex decision-making policy. The learning of such a policy requires a state representation that can encode the entire environment. Mid-level…

Machine Learning · Computer Science 2021-12-23 Eshagh Kargar , Ville Kyrki

This paper presents a method to reconstruct dense semantic trajectory stream of human interactions in 3D from synchronized multiple videos. The interactions inherently introduce self-occlusion and illumination/appearance/shape changes,…

Computer Vision and Pattern Recognition · Computer Science 2017-12-06 Jae Shin Yoon , Ziwei Li , Hyun Soo Park

Prediction of human motions is key for safe navigation of autonomous robots among humans. In cluttered environments, several motion hypotheses may exist for a pedestrian, due to its interactions with the environment and other pedestrians.…

Robotics · Computer Science 2020-11-17 Bruno Brito , Hai Zhu , Wei Pan , Javier Alonso-Mora

Combining reconstruction models with generative models has emerged as a promising paradigm for closed-loop simulation in autonomous driving. For example, ReconDreamer has demonstrated remarkable success in rendering large-scale maneuvers.…

Computer Vision and Pattern Recognition · Computer Science 2025-07-11 Guosheng Zhao , Xiaofeng Wang , Chaojun Ni , Zheng Zhu , Wenkang Qin , Guan Huang , Xingang Wang

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

Goal-oriented semantic communication (SC) aims to revolutionize communication systems by transmitting only task-essential information. However, current approaches face challenges such as joint training at transceivers, leading to redundant…

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