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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

Session-based recommendation, which aims to predict the next item of users' interest as per an existing sequence interaction of items, has attracted growing applications of Contrastive Learning (CL) with improved user and item…

信息检索 · 计算机科学 2023-12-21 Zhengxiang Shi , Xi Wang , Aldo Lipani

This paper introduces Relative Predictive Coding (RPC), a new contrastive representation learning objective that maintains a good balance among training stability, minibatch size sensitivity, and downstream task performance. The key to the…

Visual place recognition is a key to unlocking spatial navigation for animals, humans and robots. While state-of-the-art approaches are trained in a supervised manner and therefore hardly capture the information needed for generalizing to…

计算机视觉与模式识别 · 计算机科学 2023-12-25 Mohamed Adel Musallam , Vincent Gaudillière , Djamila Aouada

In reinforcement learning (RL), it is easier to solve a task if given a good representation. While deep RL should automatically acquire such good representations, prior work often finds that learning representations in an end-to-end fashion…

机器学习 · 计算机科学 2023-02-21 Benjamin Eysenbach , Tianjun Zhang , Ruslan Salakhutdinov , Sergey Levine

Spatial reasoning on multi-view line drawings by state-of-the-art supervised deep networks is recently shown with puzzling low performances on the SPARE3D dataset. Based on the fact that self-supervised learning is helpful when a large…

计算机视觉与模式识别 · 计算机科学 2022-05-17 Siyuan Xiang , Anbang Yang , Yanfei Xue , Yaoqing Yang , Chen Feng

Unsupervised text representation learning (TRL) is a fundamental task in natural language processing, which is beneficial for improving search and recommendations with the web's unlabeled texts. A recent empirical study finds that the…

计算与语言 · 计算机科学 2025-10-14 Ruize An , Richong Zhang , Zhijie Nie , Zhanyu Wu , Yanzhao Zhang , Dingkun Long

In this work, we devote ourselves to the challenging task of Unsupervised Multi-view Representation Learning (UMRL), which requires learning a unified feature representation from multiple views in an unsupervised manner. Existing UMRL…

机器学习 · 计算机科学 2023-03-09 Yiyang Zhou , Qinghai Zheng , Shunshun Bai , Jihua Zhu

Recently, self-supervised representation learning gives further development in multimedia technology. Most existing self-supervised learning methods are applicable to packaged data. However, when it comes to streamed data, they are…

计算机视觉与模式识别 · 计算机科学 2022-11-03 Zhiwei Lin , Yongtao Wang , Hongxiang Lin

Masked image modelling (e.g., Masked AutoEncoder) and contrastive learning (e.g., Momentum Contrast) have shown impressive performance on unsupervised visual representation learning. This work presents Masked Contrastive Representation…

计算机视觉与模式识别 · 计算机科学 2022-11-14 Yuchong Yao , Nandakishor Desai , Marimuthu Palaniswami

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

Supervised learning-based adversarial attack detection methods rely on a large number of labeled data and suffer significant performance degradation when applying the trained model to new domains. In this paper, we propose a self-supervised…

计算机视觉与模式识别 · 计算机科学 2024-07-08 Yi Li , Plamen Angelov , Neeraj Suri

Despite the impressive improvements achieved by unsupervised deep neural networks in computer vision and NLP tasks, such improvements have not yet been observed in ranking for information retrieval. The reason may be the complexity of the…

信息检索 · 计算机科学 2017-05-30 Mostafa Dehghani , Hamed Zamani , Aliaksei Severyn , Jaap Kamps , W. Bruce Croft

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

Despite recent progress made by self-supervised methods in representation learning with residual networks, they still underperform supervised learning on the ImageNet classification benchmark, limiting their applicability in…

计算机视觉与模式识别 · 计算机科学 2022-11-07 Nenad Tomasev , Ioana Bica , Brian McWilliams , Lars Buesing , Razvan Pascanu , Charles Blundell , Jovana Mitrovic

Self-supervised learning (SSL) has shown impressive results in downstream classification tasks. However, there is limited work in understanding their failure modes and interpreting their learned representations. In this paper, we study the…

机器学习 · 计算机科学 2023-12-14 Neha Kalibhat , Kanika Narang , Hamed Firooz , Maziar Sanjabi , Soheil Feizi

Semi-supervised learning acts as an effective way to leverage massive unlabeled data. In this paper, we propose a novel training strategy, termed as Semi-supervised Contrastive Learning (SsCL), which combines the well-known contrastive loss…

计算机视觉与模式识别 · 计算机科学 2021-05-18 Yuhang Zhang , Xiaopeng Zhang , Robert. C. Qiu , Jie Li , Haohang Xu , Qi Tian

Learning meaningful representations is at the heart of many tasks in the field of modern machine learning. Recently, a lot of methods were introduced that allow learning of image representations without supervision. These representations…

In Computer Vision, self-supervised contrastive learning enforces similar representations between different views of the same image. The pre-training is most often performed on image classification datasets, like ImageNet, where images…

计算机视觉与模式识别 · 计算机科学 2023-10-31 Benjamin Missaoui , Chongbin Yuan

Recent advances in self-supervised learning, predominantly studied in high-level visual tasks, have been explored in low-level image processing. This paper introduces a novel self-supervised constraint for single image super-resolution,…

计算机视觉与模式识别 · 计算机科学 2024-04-02 Gang Wu , Junjun Jiang , Kui Jiang , Xianming Liu