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Large deep networks have demonstrated competitive performance in single image super-resolution (SISR), with a huge volume of data involved. However, in real-world scenarios, due to the limited accessible training pairs, large models exhibit…

Computer Vision and Pattern Recognition · Computer Science 2019-06-13 Ruicheng Feng , Jinjin Gu , Yu Qiao , Chao Dong

A data augmentation module is utilized in contrastive learning to transform the given data example into two views, which is considered essential and irreplaceable. However, the predetermined composition of multiple data augmentations brings…

Computer Vision and Pattern Recognition · Computer Science 2022-08-23 Junbo Zhang , Kaisheng Ma

Most recent self-supervised learning methods learn visual representation by contrasting different augmented views of images. Compared with supervised learning, more aggressive augmentations have been introduced to further improve the…

Computer Vision and Pattern Recognition · Computer Science 2022-06-07 Yingbin Bai , Erkun Yang , Zhaoqing Wang , Yuxuan Du , Bo Han , Cheng Deng , Dadong Wang , Tongliang Liu

Joint embeddings between medical imaging modalities and associated radiology reports have the potential to offer significant benefits to the clinical community, ranging from cross-domain retrieval to conditional generation of reports to the…

Machine Learning · Computer Science 2018-11-28 Tzu-Ming Harry Hsu , Wei-Hung Weng , Willie Boag , Matthew McDermott , Peter Szolovits

A number of recent self-supervised learning methods have shown impressive performance on image classification and other tasks. A somewhat bewildering variety of techniques have been used, not always with a clear understanding of the reasons…

Computer Vision and Pattern Recognition · Computer Science 2022-07-11 Suhong Moon , Domas Buracas , Seunghyun Park , Jinkyu Kim , John Canny

Self-supervised contrastive learning heavily relies on the view variance brought by data augmentation, so that it can learn a view-invariant pre-trained representation. Beyond increasing the view variance for contrast, this work focuses on…

Computer Vision and Pattern Recognition · Computer Science 2024-10-17 Yong Zhang , Rui Zhu , Shifeng Zhang , Xu Zhou , Shifeng Chen , Xiaofan Chen

In medical image analysis, regression plays a critical role in computer-aided diagnosis. It enables quantitative measurements such as age prediction from structural imaging, cardiac function quantification, and molecular measurement from…

Machine Learning · Computer Science 2025-03-25 Yilei Wu , Zijian Dong , Chongyao Chen , Wangchunshu Zhou , Juan Helen Zhou

In recent years, we have witnessed a surge of interest in multi-view representation learning, which is concerned with the problem of learning representations of multi-view data. When facing multiple views that are highly related but sightly…

Machine Learning · Computer Science 2020-06-20 Xiangzhu Meng , Lin Feng , Huibing Wang

Recently contrastive learning has shown significant progress in learning visual representations from unlabeled data. The core idea is training the backbone to be invariant to different augmentations of an instance. While most methods only…

Computer Vision and Pattern Recognition · Computer Science 2021-11-05 Xiaoyang Guo , Tianhao Zhao , Yutian Lin , Bo Du

The recent advances in Convolutional Neural Networks (CNNs) and Vision Transformers have convincingly demonstrated high learning capability for video action recognition on large datasets. Nevertheless, deep models often suffer from the…

Computer Vision and Pattern Recognition · Computer Science 2024-10-23 Yi Tan , Zhaofan Qiu , Yanbin Hao , Ting Yao , Tao Mei

Learning feature representation from discriminative local regions plays a key role in fine-grained visual classification. Employing attention mechanisms to extract part features has become a trend. However, there are two major limitations…

Computer Vision and Pattern Recognition · Computer Science 2021-05-06 Jianwei Song , Ruoyu Yang

Self-supervised learning has made unsupervised pretraining relevant again for difficult computer vision tasks. The most effective self-supervised methods involve prediction tasks based on features extracted from diverse views of the data.…

Computer Vision and Pattern Recognition · Computer Science 2020-07-29 R Devon Hjelm , Philip Bachman

Many leading self-supervised methods for unsupervised representation learning, in particular those for embedding image features, are built on variants of the instance discrimination task, whose optimization is known to be prone to…

Computer Vision and Pattern Recognition · Computer Science 2024-08-06 Daniel Shalam , Simon Korman

This paper presents a supervised mixing augmentation method termed SuperMix, which exploits the salient regions within input images to construct mixed training samples. SuperMix is designed to obtain mixed images rich in visual features and…

Computer Vision and Pattern Recognition · Computer Science 2021-12-13 Ali Dabouei , Sobhan Soleymani , Fariborz Taherkhani , Nasser M. Nasrabadi

Recent self-supervised models have demonstrated equal or better performance than supervised methods, opening for AI systems to learn visual representations from practically unlimited data. However, these methods are typically…

Computer Vision and Pattern Recognition · Computer Science 2022-10-10 Robin Karlsson , Tomoki Hayashi , Keisuke Fujii , Alexander Carballo , Kento Ohtani , Kazuya Takeda

Mixup is a well-known data-dependent augmentation technique for DNNs, consisting of two sub-tasks: mixup generation and classification. However, the recent dominant online training method confines mixup to supervised learning (SL), and the…

Computer Vision and Pattern Recognition · Computer Science 2023-05-24 Siyuan Li , Zicheng Liu , Zedong Wang , Di Wu , Zihan Liu , Stan Z. Li

Recently, maximizing mutual information has emerged as a powerful method for unsupervised graph representation learning. The existing methods are typically effective to capture information from the topology view but ignore the feature view.…

Machine Learning · Computer Science 2022-10-12 Xiaolong Fan , Maoguo Gong , Yue Wu , Hao Li

Many recent methods for unsupervised representation learning train models to be invariant to different "views," or distorted versions of an input. However, designing these views requires considerable trial and error by human experts,…

Machine Learning · Computer Science 2021-03-30 Alex Tamkin , Mike Wu , Noah Goodman

Data augmentation techniques, such as simple image transformations and combinations, are highly effective at improving the generalization of computer vision models, especially when training data is limited. However, such techniques are…

Machine Learning · Computer Science 2023-11-03 Wenxuan Bao , Francesco Pittaluga , Vijay Kumar B G , Vincent Bindschaedler

Recently, a number of new Semi-Supervised Learning methods have emerged. As the accuracy for ImageNet and similar datasets increased over time, the performance on tasks beyond the classification of natural images is yet to be explored. Most…

Computer Vision and Pattern Recognition · Computer Science 2022-08-04 Tim Frommknecht , Pedro Alves Zipf , Quanfu Fan , Nina Shvetsova , Hilde Kuehne