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Recently, large-scale Contrastive Language-Image Pre-training (CLIP) has attracted unprecedented attention for its impressive zero-shot recognition ability and excellent transferability to downstream tasks. However, CLIP is quite…

Computer Vision and Pattern Recognition · Computer Science 2022-03-15 Yangguang Li , Feng Liang , Lichen Zhao , Yufeng Cui , Wanli Ouyang , Jing Shao , Fengwei Yu , Junjie Yan

The similarity among samples and the discrepancy between clusters are two crucial aspects of image clustering. However, current deep clustering methods suffer from the inaccurate estimation of either feature similarity or semantic…

Computer Vision and Pattern Recognition · Computer Science 2022-11-23 Chuang Niu , Hongming Shan , Ge Wang

Unsupervised adaptation of CLIP-based vision-language models (VLMs) for fine-grained image classification requires sensitivity to microscopic local cues. While CLIP exhibits strong zero-shot transfer, its reliance on coarse global features…

Computer Vision and Pattern Recognition · Computer Science 2025-10-03 Sathira Silva , Eman Ali , Chetan Arora , Muhammad Haris Khan

State-of-the-art computer vision models are mostly trained with supervised learning using human-labeled images, which limits their scalability due to the expensive annotation cost. While self-supervised representation learning has achieved…

Computer Vision and Pattern Recognition · Computer Science 2023-03-13 Junnan Li , Silvio Savarese , Steven C. H. Hoi

Vision-language models (VLMs) such as CLIP are trained via contrastive learning between text and image pairs, resulting in aligned image and text embeddings that are useful for many downstream tasks. A notable drawback of CLIP, however, is…

Machine Learning · Computer Science 2025-07-08 Dylan Sam , Devin Willmott , Joao D. Semedo , J. Zico Kolter

Recently, large-scale pre-training methods like CLIP have made great progress in multi-modal research such as text-video retrieval. In CLIP, transformers are vital for modeling complex multi-modal relations. However, in the vision…

Computer Vision and Pattern Recognition · Computer Science 2022-05-03 Shuai Zhao , Linchao Zhu , Xiaohan Wang , Yi Yang

To learn target discriminative representations, using pseudo-labels is a simple yet effective approach for unsupervised domain adaptation. However, the existence of false pseudo-labels, which may have a detrimental influence on learning…

Computer Vision and Pattern Recognition · Computer Science 2019-08-02 Jaehoon Choi , Minki Jeong , Taekyung Kim , Changick Kim

This paper studies the problem of graph-level clustering, which is a novel yet challenging task. This problem is critical in a variety of real-world applications such as protein clustering and genome analysis in bioinformatics. Recent years…

Machine Learning · Computer Science 2023-03-09 Wei Ju , Yiyang Gu , Binqi Chen , Gongbo Sun , Yifang Qin , Xingyuming Liu , Xiao Luo , Ming Zhang

We address the problem of generalized category discovery (GCD) in this paper, i.e. clustering the unlabeled images leveraging the information from a set of seen classes, where the unlabeled images could contain both seen classes and unseen…

Computer Vision and Pattern Recognition · Computer Science 2022-08-04 Yixin Fei , Zhongkai Zhao , Siwei Yang , Bingchen Zhao

Standard plane recognition plays an important role in prenatal ultrasound (US) screening. Automatically recognizing the standard plane along with the corresponding anatomical structures in US image can not only facilitate US image…

Computer Vision and Pattern Recognition · Computer Science 2022-05-23 Shuangchi He , Zehui Lin , Xin Yang , Chaoyu Chen , Jian Wang , Xue Shuang , Ziwei Deng , Qin Liu , Yan Cao , Xiduo Lu , Ruobing Huang , Nishant Ravikumar , Alejandro Frangi , Yuanji Zhang , Yi Xiong , Dong Ni

Recently, multi-view and multi-label classification have become significant domains for comprehensive data analysis and exploration. However, incompleteness both in views and labels is still a real-world scenario for multi-view multi-label…

Computer Vision and Pattern Recognition · Computer Science 2025-11-11 Bingyan Nie , Wulin Xie , Jiang Long , Xiaohuan Lu

This paper presents a simple unsupervised visual representation learning method with a pretext task of discriminating all images in a dataset using a parametric, instance-level classifier. The overall framework is a replica of a supervised…

Computer Vision and Pattern Recognition · Computer Science 2021-02-10 Yu Liu , Lianghua Huang , Pan Pan , Bin Wang , Yinghui Xu , Rong Jin

Recently, large-scale visual language pre-trained (VLP) models have demonstrated impressive performance across various downstream tasks. Motivated by these advancements, pioneering efforts have emerged in multi-label image recognition with…

Computer Vision and Pattern Recognition · Computer Science 2024-08-30 Leilei Ma , Hongxing Xie , Lei Wang , Yanping Fu , Dengdi Sun , Haifeng Zhao

In this paper, we introduce DetailCLIP: A Detail-Oriented CLIP to address the limitations of contrastive learning-based vision-language models, particularly CLIP, in handling detail-oriented and fine-grained tasks like segmentation. While…

Computer Vision and Pattern Recognition · Computer Science 2025-04-02 Amin Karimi Monsefi , Kishore Prakash Sailaja , Ali Alilooee , Ser-Nam Lim , Rajiv Ramnath

Unsupervised Person Re-identification (U-ReID) with pseudo labeling recently reaches a competitive performance compared to fully-supervised ReID methods based on modern clustering algorithms. However, such clustering-based scheme becomes…

Computer Vision and Pattern Recognition · Computer Science 2022-08-09 Xin Jin , Tianyu He , Xu Shen , Tongliang Liu , Xinchao Wang , Jianqiang Huang , Zhibo Chen , Xian-Sheng Hua

Long-tailed recognition with imbalanced class distribution naturally emerges in practical machine learning applications. Existing methods such as data reweighing, resampling, and supervised contrastive learning enforce the class balance…

Computer Vision and Pattern Recognition · Computer Science 2023-09-12 Chengkai Hou , Jieyu Zhang , Haonan Wang , Tianyi Zhou

Deep clustering which adopts deep neural networks to obtain optimal representations for clustering has been widely studied recently. In this paper, we propose a novel deep image clustering framework to learn a category-style latent…

Computer Vision and Pattern Recognition · Computer Science 2020-07-21 Junjie Zhao , Donghuan Lu , Kai Ma , Yu Zhang , Yefeng Zheng

Unsupervised representation learning for image clustering is essential in computer vision. Although the advancement of visual models has improved image clustering with efficient visual representations, challenges still remain. Firstly,…

Computer Vision and Pattern Recognition · Computer Science 2025-02-14 Zijie Song , Zhenzhen Hu , Richang Hong

Unsupervised person re-identification (Re-ID) attracts increasing attention due to its potential to resolve the scalability problem of supervised Re-ID models. Most existing unsupervised methods adopt an iterative clustering mechanism,…

Computer Vision and Pattern Recognition · Computer Science 2021-12-09 Lianjie Jia , Chenyang Yu , Xiehao Ye , Tianyu Yan , Yinjie Lei , Pingping Zhang

Accurate interpretation of Magnetic Resonance Imaging scans in clinical systems is based on a precise understanding of image contrast. This contrast is primarily governed by acquisition parameters, such as echo time and repetition time,…

Computer Vision and Pattern Recognition · Computer Science 2025-08-04 Mehmet Yigit Avci , Pedro Borges , Paul Wright , Mehmet Yigitsoy , Sebastien Ourselin , Jorge Cardoso