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Edge detection is a fundamental image analysis task that underpins numerous high-level vision applications. Recent advances in Transformer architectures have significantly improved edge quality by capturing long-range dependencies, but this…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Yuhan Gao , Xinqing Li , Xin He , Bing Li , Xinzhong Zhu , Ming-Ming Cheng , Yun Liu

On-the-fly category discovery (OCD) aims to recognize known categories while simultaneously discovering novel ones from an unlabeled online stream, using a model trained only on labeled data. Existing approaches freeze the feature extractor…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Yanan Wu , Yuhan Yan , Tailai Chen , Zhixiang Chi , ZiZhang Wu , Yi Jin , Yang Wang , Zhenbo Li

Generalized Category Discovery (GCD) aims to identify both known and unknown categories, with only partial labels given for the known categories, posing a challenging open-set recognition problem. State-of-the-art approaches for GCD task…

Computer Vision and Pattern Recognition · Computer Science 2026-04-01 Wei He , Xianghan Meng , Zhiyuan Huang , Xianbiao Qi , Rong Xiao , Chun-Guang Li

Deep convolutional neural networks have achieved competitive performance in salient object detection, in which how to learn effective and comprehensive features plays a critical role. Most of the previous works mainly adopted multiple level…

Computer Vision and Pattern Recognition · Computer Science 2020-03-03 Zuyao Chen , Qianqian Xu , Runmin Cong , Qingming Huang

Anomaly detection (AD) plays a crucial role in time series applications, primarily because time series data is employed across real-world scenarios. Detecting anomalies poses significant challenges since anomalies take diverse forms making…

Machine Learning · Computer Science 2025-01-03 Jihan Ghanim , Mariette Awad

Dynamic graph anomaly detection (DGAD) is critical for many real-world applications but remains challenging due to the scarcity of labeled anomalies. Existing methods are either unsupervised or semi-supervised: unsupervised methods avoid…

Machine Learning · Computer Science 2026-02-24 Yuxing Tian , Yiyan Qi , Fengran Mo , Weixu Zhang , Jian Guo , Jian-Yun Nie

Real world images often have highly imbalanced content density. Some areas are very uniform, e.g., large patches of blue sky, while other areas are scattered with many small objects. Yet, the commonly used successive grid downsampling…

Computer Vision and Pattern Recognition · Computer Science 2023-10-27 Chen Ziwen , Kaushik Patnaik , Shuangfei Zhai , Alvin Wan , Zhile Ren , Alex Schwing , Alex Colburn , Li Fuxin

Camouflaged Object Detection (COD) demands models to expeditiously and accurately distinguish objects which conceal themselves seamlessly in the environment. Owing to the subtle differences and ambiguous boundaries, COD is not only a…

Computer Vision and Pattern Recognition · Computer Science 2024-08-21 Huafeng Chen , Dian Shao , Guangqian Guo , Shan Gao

Distributional shift between domains poses great challenges to modern machine learning algorithms. The domain generalization (DG) signifies a popular line targeting this issue, where these methods intend to uncover universal patterns across…

Computer Vision and Pattern Recognition · Computer Science 2023-10-05 Hao Chen , Qi Zhang , Zenan Huang , Haobo Wang , Junbo Zhao

Graph clustering is a fundamental task which discovers communities or groups in networks. Recent studies have mostly focused on developing deep learning approaches to learn a compact graph embedding, upon which classic clustering methods…

Machine Learning · Computer Science 2019-06-18 Chun Wang , Shirui Pan , Ruiqi Hu , Guodong Long , Jing Jiang , Chengqi Zhang

Although a number of studies are devoted to novel category discovery, most of them assume a static setting where both labeled and unlabeled data are given at once for finding new categories. In this work, we focus on the application…

Machine Learning · Computer Science 2022-10-11 Xinwei Zhang , Jianwen Jiang , Yutong Feng , Zhi-Fan Wu , Xibin Zhao , Hai Wan , Mingqian Tang , Rong Jin , Yue Gao

A good feature representation is the key to image classification. In practice, image classifiers may be applied in scenarios different from what they have been trained on. This so-called domain shift leads to a significant performance drop…

Computer Vision and Pattern Recognition · Computer Science 2024-01-10 Zhize Wu , Changjiang Du , Le Zou , Ming Tan , Tong Xu , Fan Cheng , Fudong Nian , Thomas Weise

Machine learning classification systems are susceptible to poor performance when trained with incorrect ground truth labels, even when data is well-curated by expert annotators. As machine learning becomes more widespread, it is…

Machine Learning · Computer Science 2026-01-16 Zan Chaudhry , Noam H. Rotenberg , Brian Caffo , Craig K. Jones , Haris I. Sair

Autism spectrum disorder (ASD) remains a challenging condition to diagnose effectively and promptly, despite global efforts in public health, clinical screening, and scientific research. Traditional diagnostic methods, primarily reliant on…

Computers and Society · Computer Science 2025-03-11 Nora Fink

We study two practically important cases of model based clustering using Gaussian Mixture Models: (1) when there is misspecification and (2) on high dimensional data, in the light of recent advances in Gradient Descent (GD) based…

Machine Learning · Statistics 2020-07-28 Siva Rajesh Kasa , Vaibhav Rajan

Data imbalance and open-ended distribution are two intrinsic characteristics of the real visual world. Though encouraging progress has been made in tackling each challenge separately, few works dedicated to combining them towards real-world…

Computer Vision and Pattern Recognition · Computer Science 2024-02-21 Jianhong Bai , Zuozhu Liu , Hualiang Wang , Ruizhe Chen , Lianrui Mu , Xiaomeng Li , Joey Tianyi Zhou , Yang Feng , Jian Wu , Haoji Hu

In this paper, we consider a real-world scenario where a model that is trained on pre-defined classes continually encounters unlabeled data that contains both known and novel classes. The goal is to continually discover novel classes while…

Computer Vision and Pattern Recognition · Computer Science 2023-10-19 Yanan Wu , Zhixiang Chi , Yang Wang , Songhe Feng

Recently, transformer-based generative recommendation has garnered significant attention for user behavior modeling. However, it often requires discretizing items into multi-code representations (e.g., typically four code tokens or more),…

Information Retrieval · Computer Science 2025-12-18 Longtao Xiao , Haolin Zhang , Guohao Cai , Jieming Zhu , Yifan Wang , Heng Chang , Zhenhua Dong , Xiu Li , Ruixuan Li

Fine-grained object classification is a challenging task due to the subtle inter-class difference and large intra-class variation. Recently, visual attention models have been applied to automatically localize the discriminative regions of…

Computer Vision and Pattern Recognition · Computer Science 2018-02-27 Bo Zhao , Xiao Wu , Jiashi Feng , Qiang Peng , Shuicheng Yan

Effectively detecting anomalous nodes in attributed networks is crucial for the success of many real-world applications such as fraud and intrusion detection. Existing approaches have difficulties with three major issues: sparsity and…

Machine Learning · Computer Science 2020-10-01 Yulong Pei , Tianjin Huang , Werner van Ipenburg , Mykola Pechenizkiy