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相关论文: Boosting Contrastive Self-Supervised Learning with…

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Self-supervised contrastive learning offers a means of learning informative features from a pool of unlabeled data. In this paper, we delve into another useful approach -- providing a way of selecting a core-set that is entirely unlabeled.…

机器学习 · 计算机科学 2021-04-08 Jeongwoo Ju , Heechul Jung , Yoonju Oh , Junmo Kim

Contrastive learning between different views of the data achieves outstanding success in the field of self-supervised representation learning and the learned representations are useful in broad downstream tasks. Since all supervision…

计算机视觉与模式识别 · 计算机科学 2022-04-05 Haoqing Wang , Xun Guo , Zhi-Hong Deng , Yan Lu

Semi-supervised learning methods have shown promising results in solving many practical problems when only a few labels are available. The existing methods assume that the class distributions of labeled and unlabeled data are equal;…

机器学习 · 计算机科学 2024-08-06 Min Gu Kwak , Hyungu Kahng , Seoung Bum Kim

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…

计算机视觉与模式识别 · 计算机科学 2023-11-29 Zijun Long , George Killick , Lipeng Zhuang , Richard McCreadie , Gerardo Aragon Camarasa , Paul Henderson

Contrastive loss has significantly improved performance in supervised classification tasks by using a multi-viewed framework that leverages augmentation and label information. The augmentation enables contrast with another view of a single…

机器学习 · 计算机科学 2022-11-28 Sangmin Bae , Sungnyun Kim , Jongwoo Ko , Gihun Lee , Seungjong Noh , Se-Young Yun

Recently, contrastive learning approaches (e.g., CLIP (Radford et al., 2021)) have received huge success in multimodal learning, where the model tries to minimize the distance between the representations of different views (e.g., image and…

机器学习 · 计算机科学 2023-04-10 Yunwei Ren , Yuanzhi Li

Recent empirical works have successfully used unlabeled data to learn feature representations that are broadly useful in downstream classification tasks. Several of these methods are reminiscent of the well-known word2vec embedding…

机器学习 · 计算机科学 2019-02-26 Sanjeev Arora , Hrishikesh Khandeparkar , Mikhail Khodak , Orestis Plevrakis , Nikunj Saunshi

Learning contrastive representations from pairwise comparisons has achieved remarkable success in various fields, such as natural language processing, computer vision, and information retrieval. Collaborative filtering algorithms based on…

信息检索 · 计算机科学 2023-08-01 Bin Liu , Qin Luo , Bang Wang

Graph contrastive learning (GCL) has emerged as a representative graph self-supervised method, achieving significant success. The currently prevalent optimization objective for GCL is InfoNCE. Typically, it employs augmentation techniques…

机器学习 · 计算机科学 2024-03-22 Yulan Hu , Sheng Ouyang , Jingyu Liu , Ge Chen , Zhirui Yang , Junchen Wan , Fuzheng Zhang , Zhongyuan Wang , Yong 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

Many contrastive representation learning methods learn a single global representation of an entire image. However, dense contrastive representation learning methods such as DenseCL (Wang et al., 2021) can learn better representations for…

计算机视觉与模式识别 · 计算机科学 2023-01-12 Berk Iskender , Zhenlin Xu , Simon Kornblith , En-Hung Chu , Maryam Khademi

Semi-supervised learning is attracting blooming attention, due to its success in combining unlabeled data. However, pseudo-labeling-based semi-supervised approaches suffer from two problems in image classification: (1) Existing methods…

计算机视觉与模式识别 · 计算机科学 2024-07-08 Xuerong Zhang , Li Huang , Jing Lv , Ming Yang

Recently, contrastive learning has largely advanced the progress of unsupervised visual representation learning. Pre-trained on ImageNet, some self-supervised algorithms reported higher transfer learning performance compared to…

计算机视觉与模式识别 · 计算机科学 2020-11-18 Longhui Wei , Lingxi Xie , Jianzhong He , Jianlong Chang , Xiaopeng Zhang , Wengang Zhou , Houqiang Li , Qi Tian

Deep networks have strong capacities of embedding data into latent representations and finishing following tasks. However, the capacities largely come from high-quality annotated labels, which are expensive to collect. Noisy labels are more…

计算机视觉与模式识别 · 计算机科学 2022-03-09 Shikun Li , Xiaobo Xia , Shiming Ge , Tongliang Liu

Semi-supervised learning (SSL) has achieved great success in leveraging a large amount of unlabeled data to learn a promising classifier. A popular approach is pseudo-labeling that generates pseudo labels only for those unlabeled data with…

计算机视觉与模式识别 · 计算机科学 2022-12-29 Qinyi Deng , Yong Guo , Zhibang Yang , Haolin Pan , Jian Chen

Distantly supervision automatically generates plenty of training samples for relation extraction. However, it also incurs two major problems: noisy labels and imbalanced training data. Previous works focus more on reducing wrongly labeled…

计算与语言 · 计算机科学 2021-05-24 Chenhao Xie , Jiaqing Liang , Jingping Liu , Chengsong Huang , Wenhao Huang , Yanghua Xiao

Contrastive self-supervised learning (SSL) learns an embedding space that maps similar data pairs closer and dissimilar data pairs farther apart. Despite its success, one issue has been overlooked: the fairness aspect of representations…

Fine-grained classification involves dealing with datasets with larger number of classes with subtle differences between them. Guiding the model to focus on differentiating dimensions between these commonly confusable classes is key to…

计算与语言 · 计算机科学 2021-09-14 Varsha Suresh , Desmond C. Ong

Self-supervised learning algorithms (SSL) based on instance discrimination have shown promising results, performing competitively or even outperforming supervised learning counterparts in some downstream tasks. Such approaches employ data…

计算机视觉与模式识别 · 计算机科学 2025-05-01 Mohammad Alkhalefi , Georgios Leontidis , Mingjun Zhong

Contextual ranking models have delivered impressive performance improvements over classical models in the document ranking task. However, these highly over-parameterized models tend to be data-hungry and require large amounts of data even…

信息检索 · 计算机科学 2022-07-08 Abhijit Anand , Jurek Leonhardt , Koustav Rudra , Avishek Anand