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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…

计算机视觉与模式识别 · 计算机科学 2022-11-03 Weiyao Wang , Byung-Hak Kim , Varun Ganapathi

In Self-Supervised Learning (SSL), various pretext tasks are designed for learning feature representations through contrastive loss. However, previous studies have shown that this loss is less tolerant to semantically similar samples due to…

音频与语音处理 · 电气工程与系统科学 2023-03-07 Shanshan Wang , Soumya Tripathy , Annamaria Mesaros

Self-supervised learning (SSL) has demonstrated its effectiveness in learning representations through comparison methods that align with human intuition. However, mainstream SSL methods heavily rely on high body datasets with single label,…

计算机视觉与模式识别 · 计算机科学 2025-07-01 Jiale Chen

We present CURL: Contrastive Unsupervised Representations for Reinforcement Learning. CURL extracts high-level features from raw pixels using contrastive learning and performs off-policy control on top of the extracted features. CURL…

机器学习 · 计算机科学 2020-09-22 Aravind Srinivas , Michael Laskin , Pieter Abbeel

This paper presents SimCLR: a simple framework for contrastive learning of visual representations. We simplify recently proposed contrastive self-supervised learning algorithms without requiring specialized architectures or a memory bank.…

机器学习 · 计算机科学 2020-07-02 Ting Chen , Simon Kornblith , Mohammad Norouzi , Geoffrey Hinton

Sign language recognition (SLR) is a machine learning task aiming to identify signs in videos. Due to the scarcity of annotated data, unsupervised methods like contrastive learning have become promising in this field. They learn meaningful…

计算机视觉与模式识别 · 计算机科学 2026-03-09 Ariel Basso Madjoukeng , Jérôme Fink , Pierre Poitier , Edith Belise Kenmogne , Benoit Frenay

Real-scene image super-resolution aims to restore real-world low-resolution images into their high-quality versions. A typical RealSR framework usually includes the optimization of multiple criteria which are designed for different image…

计算机视觉与模式识别 · 计算机科学 2022-07-27 Yukai Shi , Hao Li , Sen Zhang , Zhijing Yang , Xiao Wang

Contrastive learning has been proven beneficial for self-supervised skeleton-based action recognition. Most contrastive learning methods utilize carefully designed augmentations to generate different movement patterns of skeletons for the…

计算机视觉与模式识别 · 计算机科学 2023-07-13 Jiahang Zhang , Lilang Lin , Jiaying Liu

Graph contrastive learning (GCL) is the most representative and prevalent self-supervised learning approach for graph-structured data. Despite its remarkable success, existing GCL methods highly rely on an augmentation scheme to learn the…

机器学习 · 计算机科学 2022-06-07 Haonan Wang , Jieyu Zhang , Qi Zhu , Wei Huang

Generative adversarial networks (GAN) and generative diffusion models (DM) have been widely used in real-world image super-resolution (Real-ISR) to enhance the image perceptual quality. However, these generative models are prone to…

计算机视觉与模式识别 · 计算机科学 2024-08-20 Du Chen , Zhengqiang Zhang , Jie Liang , Lei Zhang

Self-Supervised Learning (SSL) methods operate on unlabeled data to learn robust representations useful for downstream tasks. Most SSL methods rely on augmentations obtained by transforming the 2D image pixel map. These augmentations ignore…

计算机视觉与模式识别 · 计算机科学 2023-01-30 Sumukh Aithal , Anirudh Goyal , Alex Lamb , Yoshua Bengio , Michael Mozer

Graph contrastive learning (GCL) has emerged as an effective tool for learning unsupervised representations of graphs. The key idea is to maximize the agreement between two augmented views of each graph via data augmentation. Existing GCL…

机器学习 · 计算机科学 2022-09-16 Xin Zhang , Qiaoyu Tan , Xiao Huang , Bo Li

In recent years, deep learning on graphs has achieved remarkable success in various domains. However, the reliance on annotated graph data remains a significant bottleneck due to its prohibitive cost and time-intensive nature. To address…

Contrastive learning (CL) is a form of self-supervised learning and has been widely used for various tasks. Different from widely studied instance-level contrastive learning, pixel-wise contrastive learning mainly helps with pixel-wise…

计算机视觉与模式识别 · 计算机科学 2022-11-15 Quan Quan , Qingsong Yao , Jun Li , S. kevin Zhou

Despite profound successes, contrastive representation learning relies on carefully designed data augmentations using domain specific knowledge. This challenge is magnified in natural language processing where no general rules exist for…

计算与语言 · 计算机科学 2022-02-28 Dejiao Zhang , Wei Xiao , Henghui Zhu , Xiaofei Ma , Andrew O. Arnold

Human skeleton point clouds are commonly used to automatically classify and predict the behaviour of others. In this paper, we use a contrastive self-supervised learning method, SimCLR, to learn representations that capture the semantics of…

计算机视觉与模式识别 · 计算机科学 2022-11-11 Nico Lingg , Miguel Sarabia , Luca Zappella , Barry-John Theobald

Recent advances in self-supervised learning (SSL) have largely closed the gap with supervised ImageNet pretraining. Despite their success these methods have been primarily applied to unlabeled ImageNet images, and show marginal gains when…

计算机视觉与模式识别 · 计算机科学 2020-12-09 Ramprasaath R. Selvaraju , Karan Desai , Justin Johnson , Nikhil Naik

Self-Supervised Learning (SSL) enables us to pre-train foundation models without costly labeled data. Among SSL methods, Contrastive Learning (CL) methods are better at obtaining accurate semantic representations in noise interference.…

图像与视频处理 · 电气工程与系统科学 2026-02-06 Hengtong Shen , Haiyan Gu , Haitao Li , Yi Yang , Agen Qiu

Contrastive learning (CL), which can extract the information shared between different contrastive views, has become a popular paradigm for vision representation learning. Inspired by the success in computer vision, recent work introduces CL…

机器学习 · 计算机科学 2022-12-15 Xumeng Gong , Cheng Yang , Chuan Shi

Existing graph contrastive learning methods rely on augmentation techniques based on random perturbations (e.g., randomly adding or dropping edges and nodes). Nevertheless, altering certain edges or nodes can unexpectedly change the graph…

机器学习 · 计算机科学 2022-11-08 Huidong Liang , Xingjian Du , Bilei Zhu , Zejun Ma , Ke Chen , Junbin Gao