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Street view imagery is extensively utilized in representation learning for urban visual environments, supporting various sustainable development tasks such as environmental perception and socio-economic assessment. However, it is…

Computer Vision and Pattern Recognition · Computer Science 2026-02-24 Yong Li , Yingjing Huang , Gengchen Mai , Fan Zhang

Endoscopic video analysis is essential for early gastrointestinal screening but remains hindered by limited high-quality annotations. While self-supervised video pre-training shows promise, existing methods developed for natural videos…

Computer Vision and Pattern Recognition · Computer Science 2026-03-30 Yuan Zhang , Sihao Dou , Kai Hu , Shuhua Deng , Chunhong Cao , Fen Xiao , Xieping Gao

Table Structure Recognition (TSR) is a task aimed at converting table images into a machine-readable format (e.g. HTML), to facilitate other applications such as information retrieval. Recent works tackle this problem by identifying the…

Computer Vision and Pattern Recognition · Computer Science 2025-01-22 Minsoo Khang , Teakgyu Hong

In many robotic domains such as flexible automated manufacturing or personal assistance, a fundamental perception task is that of identifying and localizing objects whose 3D models are known. Canonical approaches to this problem include…

Computer Vision and Pattern Recognition · Computer Science 2016-03-18 Venkatraman Narayanan , Maxim Likhachev

Aerial Vision-and-Language Navigation (VLN) is a novel task enabling Unmanned Aerial Vehicles (UAVs) to navigate in outdoor environments through natural language instructions and visual cues. However, it remains challenging due to the…

Robotics · Computer Science 2025-08-12 Yunpeng Gao , Zhigang Wang , Pengfei Han , Linglin Jing , Dong Wang , Bin Zhao

Trajectory representation learning (TRL) maps trajectories to vector embeddings and facilitates tasks such as trajectory classification and similarity search. State-of-the-art (SOTA) TRL methods transform raw GPS trajectories to grid or…

Machine Learning · Computer Science 2025-11-19 Silin Zhou , Yao Chen , Shuo Shang , Lisi Chen , Bingsheng He , Ryosuke Shibasaki

Sequential matching using hand-crafted heuristics has been standard practice in route-based place recognition for enhancing pairwise similarity results for nearly a decade. However, precision-recall performance of these algorithms…

Computer Vision and Pattern Recognition · Computer Science 2021-03-04 Marvin Chancán , Michael Milford

Recent advances in text-to-image (T2I) generation via reinforcement learning (RL) have benefited from reward models that assess semantic alignment and visual quality. However, most existing reward models pay limited attention to…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Sashuai Zhou , Qiang Zhou , Junpeng Ma , Yue Cao , Ruofan Hu , Ziang Zhang , Xiaoda Yang , Zhibin Wang , Jun Song , Cheng Yu , Bo Zheng , Zhou Zhao

Semantic Image Interpretation (SII) is the task of extracting structured semantic descriptions from images. It is widely agreed that the combined use of visual data and background knowledge is of great importance for SII. Recently,…

Artificial Intelligence · Computer Science 2017-05-26 Ivan Donadello , Luciano Serafini , Artur d'Avila Garcez

To solve the spatial problems of mapping, localization and navigation, the mammalian lineage has developed striking spatial representations. One important spatial representation is the Nobel-prize winning grid cells: neurons that represent…

Machine Learning · Computer Science 2023-11-07 Rylan Schaeffer , Mikail Khona , Tzuhsuan Ma , Cristóbal Eyzaguirre , Sanmi Koyejo , Ila Rani Fiete

Geo-tagged images are publicly available in large quantities, whereas labels such as object classes are rather scarce and expensive to collect. Meanwhile, contrastive learning has achieved tremendous success in various natural image and…

Computer Vision and Pattern Recognition · Computer Science 2023-05-10 Gengchen Mai , Ni Lao , Yutong He , Jiaming Song , Stefano Ermon

Spatio-temporal pattern recognition is a fundamental ability of the brain which is required for numerous real-world activities. Recent deep learning approaches have reached outstanding accuracies in such tasks, but their implementation on…

Supervised learning methods have shown effectiveness in estimating spatial acoustic parameters such as time difference of arrival, direct-to-reverberant ratio and reverberation time. However, they still suffer from the simulation-to-reality…

Sound · Computer Science 2024-09-10 Bing Yang , Xiaofei Li

Simultaneous Localisation and Mapping (SLAM) is one of the fundamental problems in autonomous mobile robots where a robot needs to reconstruct a previously unseen environment while simultaneously localising itself with respect to the map.…

Robotics · Computer Science 2022-09-13 Tin Lai

Traffic Sign Recognition (TSR) is a core perception capability for autonomous driving, where robustness to cross-region variation, long-tailed categories, and semantic ambiguity is essential for reliable real-world deployment. Despite…

Computer Vision and Pattern Recognition · Computer Science 2026-03-25 Guoyang Zhao , Weiqing Qi , Kai Zhang , Chenguang Zhang , Zeying Gong , Zhihai Bi , Kai Chen , Benshan Ma , Ming Liu , Jun Ma

Learning self-supervised image representations has been broadly studied to boost various visual understanding tasks. Existing methods typically learn a single level of image semantics like pairwise semantic similarity or image clustering…

Computer Vision and Pattern Recognition · Computer Science 2022-05-27 Minghao Xu , Yuanfan Guo , Xuanyu Zhu , Jiawen Li , Zhenbang Sun , Jian Tang , Yi Xu , Bingbing Ni

Offline goal-conditioned reinforcement learning (GCRL) is a major problem in reinforcement learning (RL) because it provides a simple, unsupervised, and domain-agnostic way to acquire diverse behaviors and representations from unlabeled…

Machine Learning · Computer Science 2025-02-14 Seohong Park , Kevin Frans , Benjamin Eysenbach , Sergey Levine

Contrastive learning (CL) has emerged as a powerful paradigm for learning transferable representations without the reliance on large labeled datasets. Its ability to capture intrinsic similarities and differences among data samples has led…

Computer Vision and Pattern Recognition · Computer Science 2025-07-14 Debashis Gupta , Aditi Golder , Rongkhun Zhu , Kangning Cui , Wei Tang , Fan Yang , Ovidiu Csillik , Sarra Alaqahtani , V. Paul Pauca

Earthquake detection is essential for earthquake early warning (EEW) systems. Traditional methods struggle with low signal-to-noise ratios and single-station reliance, limiting their effectiveness. We propose a Spatio-Temporal Graph…

Machine Learning · Computer Science 2025-03-17 Suchanun Piriyasatit , Ercan Engin Kuruoglu , Mehmet Sinan Ozeren

It is a key to construct a similarity graph in graph-oriented subspace learning and clustering. In a similarity graph, each vertex denotes a data point and the edge weight represents the similarity between two points. There are two popular…

Machine Learning · Computer Science 2017-05-17 Liangli Zhen , Zhang Yi , Xi Peng , Dezhong Peng