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Contrastive learning (CL) has shown great power in self-supervised learning due to its ability to capture insight correlations among large-scale data. Current CL models are biased to learn only the ability to discriminate positive and…

计算机视觉与模式识别 · 计算机科学 2022-11-17 Ziwen Liu , Bonan Li , Congying Han , Tiande Guo , Xuecheng Nie

Recently, several discriminative learning approaches have been proposed for effective image restoration, achieving convincing trade-off between image quality and computational efficiency. However, these methods require separate training for…

计算机视觉与模式识别 · 计算机科学 2018-07-04 Lei Xiao , Felix Heide , Wolfgang Heidrich , Bernhard Schölkopf , Michael Hirsch

Self-supervised methods have shown tremendous success in the field of computer vision, including applications in remote sensing and medical imaging. Most popular contrastive-loss based methods like SimCLR, MoCo, MoCo-v2 use multiple views…

计算机视觉与模式识别 · 计算机科学 2022-09-07 Umangi Jain , Alex Wilson , Varun Gulshan

Most previous few-shot learning algorithms are based on meta-training with fake few-shot tasks as training samples, where large labeled base classes are required. The trained model is also limited by the type of tasks. In this paper we…

计算机视觉与模式识别 · 计算机科学 2020-08-25 Jianyi Li , Guizhong Liu

Self-supervised instance discrimination is an effective contrastive pretext task to learn feature representations and address limited medical image annotations. The idea is to make features of transformed versions of the same images similar…

计算机视觉与模式识别 · 计算机科学 2022-11-17 Yejia Zhang , Xinrong Hu , Nishchal Sapkota , Yiyu Shi , Danny Z. Chen

Contrastive Language-Image Pretraining (CLIP) is widely used to train models to align images and texts in a common embedding space by mapping them to fixed-sized vectors. These models are key to multimodal information retrieval and related…

Preserving maximal information is one of principles of designing self-supervised learning methodologies. To reach this goal, contrastive learning adopts an implicit way which is contrasting image pairs. However, we believe it is not fully…

计算机视觉与模式识别 · 计算机科学 2022-04-14 Hong-Yu Zhou , Chixiang Lu , Sibei Yang , Xiaoguang Han , Yizhou Yu

Copy detection, which is a task to determine whether an image is a modified copy of any image in a database, is an unsolved problem. Thus, we addressed copy detection by training convolutional neural networks (CNNs) with contrastive…

计算机视觉与模式识别 · 计算机科学 2021-12-09 Shuhei Yokoo

Continual learning (CL) can help pre-trained vision-language models efficiently adapt to new or under-trained data distributions without re-training. Nevertheless, during the continual training of the Contrastive Language-Image Pre-training…

计算机视觉与模式识别 · 计算机科学 2023-08-14 Zangwei Zheng , Mingyuan Ma , Kai Wang , Ziheng Qin , Xiangyu Yue , Yang You

Deep learning has been a prevalence in computational chemistry and widely implemented in molecule property predictions. Recently, self-supervised learning (SSL), especially contrastive learning (CL), gathers growing attention for the…

机器学习 · 计算机科学 2022-06-01 Yuyang Wang , Rishikesh Magar , Chen Liang , Amir Barati Farimani

Contrastive learning has emerged as an efficient framework to learn multimodal representations. CLIP, a seminal work in this area, achieved impressive results by training on paired image-text data using the contrastive loss. Recent work…

计算机视觉与模式识别 · 计算机科学 2023-11-07 Enrico Fini , Pietro Astolfi , Adriana Romero-Soriano , Jakob Verbeek , Michal Drozdzal

A two-stage training paradigm consisting of sequential pre-training and meta-training stages has been widely used in current few-shot learning (FSL) research. Many of these methods use self-supervised learning and contrastive learning to…

计算机视觉与模式识别 · 计算机科学 2022-09-20 Zhanyuan Yang , Jinghua Wang , Yingying Zhu

Dense retrieval (DR) has shown promising results in information retrieval. In essence, DR requires high-quality text representations to support effective search in the representation space. Recent studies have shown that pre-trained…

信息检索 · 计算机科学 2022-08-23 Xinyu Ma , Ruqing Zhang , Jiafeng Guo , Yixing Fan , Xueqi Cheng

Contrastive learning is a family of self-supervised methods where a model is trained to solve a classification task constructed from unlabeled data. It has recently emerged as one of the leading learning paradigms in the absence of labels…

机器学习 · 统计学 2021-03-05 Bingbin Liu , Pradeep Ravikumar , Andrej Risteski

Contrastive learning (CL) has recently been applied to adversarial learning tasks. Such practice considers adversarial samples as additional positive views of an instance, and by maximizing their agreements with each other, yields better…

计算机视觉与模式识别 · 计算机科学 2022-07-19 Qiying Yu , Jieming Lou , Xianyuan Zhan , Qizhang Li , Wangmeng Zuo , Yang Liu , Jingjing Liu

Convolutional Neural Networks (CNNs) provide excellent performance when used for image classification. The classical method of training CNNs is by labeling images in a supervised manner as in "input image belongs to this label" (Positive…

机器学习 · 计算机科学 2019-08-21 Youngdong Kim , Junho Yim , Juseung Yun , Junmo Kim

Self-supervised learning (especially contrastive learning) has attracted great interest due to its huge potential in learning discriminative representations in an unsupervised manner. Despite the acknowledged successes, existing contrastive…

计算机视觉与模式识别 · 计算机科学 2021-10-22 Guangrun Wang , Keze Wang , Guangcong Wang , Philip H. S. Torr , Liang Lin

Deep Image Manipulation Localization (IML) models suffer from training data insufficiency and thus heavily rely on pre-training. We argue that contrastive learning is more suitable to tackle the data insufficiency problem for IML. Crafting…

计算机视觉与模式识别 · 计算机科学 2023-09-28 Jizhe Zhou , Xiaochen Ma , Xia Du , Ahmed Y. Alhammadi , Wentao Feng

Contrastive learning has been frequently investigated to learn effective representations for text clustering tasks. While existing contrastive learning-based text clustering methods only focus on modeling instance-wise semantic similarity…

计算与语言 · 计算机科学 2024-08-27 Qian Yong , Chen Chen , Xiabing Zhou

Pre-trained language models (LMs) store knowledge in their parameters and can generate informative responses when used in conversational systems. However, LMs suffer from the problem of "hallucination:" they may generate plausible-looking…

计算与语言 · 计算机科学 2022-12-21 Weiwei Sun , Zhengliang Shi , Shen Gao , Pengjie Ren , Maarten de Rijke , Zhaochun Ren