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Image classification datasets exhibit a non-negligible fraction of mislabeled examples, often due to human error when one class superficially resembles another. This issue poses challenges in supervised contrastive learning (SCL), where the…

Computer Vision and Pattern Recognition · Computer Science 2023-11-29 Zijun Long , George Killick , Lipeng Zhuang , Richard McCreadie , Gerardo Aragon Camarasa , Paul Henderson

Current supervised cross-domain image retrieval methods can achieve excellent performance. However, the cost of data collection and labeling imposes an intractable barrier to practical deployment in real applications. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2022-07-21 Conghui Hu , Gim Hee Lee

Self-supervised contrastive learning is an effective approach for addressing the challenge of limited labelled data. This study builds upon the previously established two-stage patch-level, multi-label classification method for…

Computer Vision and Pattern Recognition · Computer Science 2026-02-09 Salma Haidar , José Oramas

Current approaches for video grounding propose kinds of complex architectures to capture the video-text relations, and have achieved impressive improvements. However, it is hard to learn the complicated multi-modal relations by only…

Computer Vision and Pattern Recognition · Computer Science 2021-08-25 Xinpeng Ding , Nannan Wang , Shiwei Zhang , De Cheng , Xiaomeng Li , Ziyuan Huang , Mingqian Tang , Xinbo Gao

Deep learning techniques have achieved great success in remote sensing image change detection. Most of them are supervised techniques, which usually require large amounts of training data and are limited to a particular application.…

Image and Video Processing · Electrical Eng. & Systems 2021-10-11 Yuxing Chen , Lorenzo Bruzzone

Recent advances in self-supervised contrastive learning yield good image-level representation, which favors classification tasks but usually neglects pixel-level detailed information, leading to unsatisfactory transfer performance to dense…

Computer Vision and Pattern Recognition · Computer Science 2022-08-10 Feng Wang , Huiyu Wang , Chen Wei , Alan Yuille , Wei Shen

Current 3D semi-supervised segmentation methods face significant challenges such as limited consideration of contextual information and the inability to generate reliable pseudo-labels for effective unsupervised data use. To address these…

Computer Vision and Pattern Recognition · Computer Science 2023-11-22 Sanaz Karimijafarbigloo , Reza Azad , Yury Velichko , Ulas Bagci , Dorit Merhof

Detectingandsegmentingobjectswithinwholeslideimagesis essential in computational pathology workflow. Self-supervised learning (SSL) is appealing to such annotation-heavy tasks. Despite the extensive benchmarks in natural images for dense…

Computer Vision and Pattern Recognition · Computer Science 2022-07-15 Jiawei Yang , Hanbo Chen , Yuan Liang , Junzhou Huang , Lei He , Jianhua Yao

Convolutional neural networks (CNNs) are highly successful for super-resolution (SR) but often require sophisticated architectures with heavy memory cost and computational overhead, significantly restricts their practical deployments on…

Computer Vision and Pattern Recognition · Computer Science 2021-05-26 Yanbo Wang , Shaohui Lin , Yanyun Qu , Haiyan Wu , Zhizhong Zhang , Yuan Xie , Angela Yao

Recent advances in semi-supervised object detection (SSOD) are largely driven by consistency-based pseudo-labeling methods for image classification tasks, producing pseudo labels as supervisory signals. However, when using pseudo labels,…

Computer Vision and Pattern Recognition · Computer Science 2022-01-03 Hengduo Li , Zuxuan Wu , Abhinav Shrivastava , Larry S. Davis

Deep convolutional neural network models pre-trained for the ImageNet classification task have been successfully adopted to tasks in other domains, such as texture description and object proposal generation, but these tasks require…

Computer Vision and Pattern Recognition · Computer Science 2017-07-14 Xiu-Shen Wei , Jian-Hao Luo , Jianxin Wu , Zhi-Hua Zhou

Unsupervised clustering aims at discovering the semantic categories of data according to some distance measured in the representation space. However, different categories often overlap with each other in the representation space at the…

Machine Learning · Computer Science 2021-06-01 Dejiao Zhang , Feng Nan , Xiaokai Wei , Shangwen Li , Henghui Zhu , Kathleen McKeown , Ramesh Nallapati , Andrew Arnold , Bing Xiang

Most Neural Networks (NNs) for classification are trained using Cross-Entropy as a loss function. This approach requires the model to have an explicit classification layer. However, there exist alternative approaches, such as Contrastive…

Machine Learning · Computer Science 2026-04-27 Leonardo Arrighi , Julia Eva Belloni , Aurélie Gallet , Ivan Gentile , Matteo Lippi , Marco Zullich

We propose to bridge the gap between semi-supervised and unsupervised image recognition with a flexible method that performs well for both generalized category discovery (GCD) and image clustering. Despite the overlap in motivation between…

Computer Vision and Pattern Recognition · Computer Science 2025-03-19 Gihan Jayatilaka , Abhinav Shrivastava , Matthew Gwilliam

Contemporary transfer learning-based methods to alleviate the data insufficiency in change detection (CD) are mainly based on ImageNet pre-training. Self-supervised learning (SSL) has recently been introduced to remote sensing (RS) for…

Computer Vision and Pattern Recognition · Computer Science 2022-01-19 Hao Chen , Yifan Zao , Liqin Liu , Song Chen , Zhenwei Shi

Unsupervised learning has been a long-standing goal of machine learning and is especially important for medical image analysis, where the learning can compensate for the scarcity of labeled datasets. A promising subclass of unsupervised…

Image and Video Processing · Electrical Eng. & Systems 2021-09-09 Ozan Ciga , Tony Xu , Anne L. Martel

Recent advances in self-supervised learning (SSL) using large models to learn visual representations from natural images are rapidly closing the gap between the results produced by fully supervised learning and those produced by SSL on…

Computer Vision and Pattern Recognition · Computer Science 2022-11-03 Weiyao Wang , Byung-Hak Kim , Varun Ganapathi

Contrastive Language-Image Pretraining has emerged as a prominent approach for training vision and text encoders with uncurated image-text pairs from the web. To enhance data-efficiency, recent efforts have introduced additional supervision…

Computer Vision and Pattern Recognition · Computer Science 2023-12-21 Bumsoo Kim , Yeonsik Jo , Jinhyung Kim , Seung Hwan Kim

Image-level contrastive representation learning has proven to be highly effective as a generic model for transfer learning. Such generality for transfer learning, however, sacrifices specificity if we are interested in a certain downstream…

Computer Vision and Pattern Recognition · Computer Science 2021-10-26 Fangyun Wei , Yue Gao , Zhirong Wu , Han Hu , Stephen Lin

We present a new framework for self-supervised representation learning by formulating it as a ranking problem in an image retrieval context on a large number of random views (augmentations) obtained from images. Our work is based on two…

Computer Vision and Pattern Recognition · Computer Science 2020-11-23 Ali Varamesh , Ali Diba , Tinne Tuytelaars , Luc Van Gool
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