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This paper proposes a novel method of learning by predicting view assignments with support samples (PAWS). The method trains a model to minimize a consistency loss, which ensures that different views of the same unlabeled instance are…

Computer Vision and Pattern Recognition · Computer Science 2021-08-03 Mahmoud Assran , Mathilde Caron , Ishan Misra , Piotr Bojanowski , Armand Joulin , Nicolas Ballas , Michael Rabbat

The advancement of deep learning has greatly improved supervised image classification. However, labeling data is costly, prompting research into unsupervised learning methods such as contrastive learning. In real-world scenarios, fully…

Artificial Intelligence · Computer Science 2026-01-09 Shogo Nakayama , Masahiro Okuda

Self-Supervised Learning (SSL) methods such as VICReg, Barlow Twins or W-MSE avoid collapse of their joint embedding architectures by constraining or regularizing the covariance matrix of their projector's output. This study highlights…

Machine Learning · Computer Science 2024-02-15 Grégoire Mialon , Randall Balestriero , Yann LeCun

Semi-supervised learning (SSL) tackles the label missing problem by enabling the effective usage of unlabeled data. While existing SSL methods focus on the traditional setting, a practical and challenging scenario called label Missing Not…

Machine Learning · Computer Science 2023-08-21 Yue Duan , Zhen Zhao , Lei Qi , Luping Zhou , Lei Wang , Yinghuan Shi

Semi-supervised learning (SSL) constructs classifiers from datasets in which only a subset of observations is labelled, a situation that naturally arises because obtaining labels often requires expert judgement or costly manual effort. This…

Computation · Statistics 2025-12-09 Geoffrey J. McLachlan , Jinran Wu

Self-supervised learning (SSL) has empirically shown its data representation learnability in many downstream tasks. There are only a few theoretical works on data representation learnability, and many of those focus on final data…

Machine Learning · Computer Science 2024-01-09 Ruofeng Yang , Xiangyuan Li , Bo Jiang , Shuai Li

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…

Machine Learning · Computer Science 2023-12-14 Neha Kalibhat , Kanika Narang , Hamed Firooz , Maziar Sanjabi , Soheil Feizi

Ultrasound (US) imaging is clinically invaluable due to its noninvasive and safe nature. However, interpreting US images is challenging, requires significant expertise, and time, and is often prone to errors. Deep learning offers assistive…

Computer Vision and Pattern Recognition · Computer Science 2025-02-05 Edward Ellis , Andrew Bulpitt , Nasim Parsa , Michael F Byrne , Sharib Ali

Contrastive learning (CL) has emerged as a powerful technique for representation learning, with or without label supervision. However, supervised CL is prone to collapsing representations of subclasses within a class by not capturing all…

Machine Learning · Computer Science 2023-05-30 Yihao Xue , Siddharth Joshi , Eric Gan , Pin-Yu Chen , Baharan Mirzasoleiman

Class imbalance is a critical issue in image classification that significantly affects the performance of deep recognition models. In this work, we first identify a network degeneration dilemma that hinders the model learning by introducing…

Computer Vision and Pattern Recognition · Computer Science 2024-09-02 Zhiwei Zhang

Semi-supervised learning (SSL) has long been proved to be an effective technique to construct powerful models with limited labels. In the existing literature, consistency regularization-based methods, which force the perturbed samples to…

Computer Vision and Pattern Recognition · Computer Science 2022-06-23 Xihong Yang , Xiaochang Hu , Sihang Zhou , Xinwang Liu , En Zhu

Self-supervised learning (SSL) methods aim to learn view-invariant representations by maximizing the similarity between the features extracted from different crops of the same image regardless of cropping size and content. In essence, this…

Computer Vision and Pattern Recognition · Computer Science 2022-04-14 Tong Zhang , Congpei Qiu , Wei Ke , Sabine Süsstrunk , Mathieu Salzmann

Supervised contrastive learning (SupCL) has emerged as a prominent approach in representation learning, leveraging both supervised and self-supervised losses. However, achieving an optimal balance between these losses is challenging;…

Machine Learning · Computer Science 2025-03-12 Chungpa Lee , Jeongheon Oh , Kibok Lee , Jy-yong Sohn

To achieve promising results on blind image super-resolution (SR), some attempts leveraged the low resolution (LR) images to predict the kernel and improve the SR performance. However, these Supervised Kernel Prediction (SKP) methods are…

Computer Vision and Pattern Recognition · Computer Science 2022-08-30 Yifeng Zhou , Chuming Lin , Donghao Luo , Yong Liu , Ying Tai , Chengjie Wang , Mingang Chen

We consider weakly supervised segmentation where only a fraction of pixels have ground truth labels (scribbles) and focus on a self-labeling approach optimizing relaxations of the standard unsupervised CRF/Potts loss on unlabeled pixels.…

Computer Vision and Pattern Recognition · Computer Science 2025-07-03 Zhongwen Zhang , Yuri Boykov

In this work, we present a wireless localization method that operates on self-supervised and unlabeled channel estimates. Our self-supervising method learns general-purpose channel features robust to fading and system impairments. Learned…

Signal Processing · Electrical Eng. & Systems 2023-02-15 Artan Salihu , Stefan Schwarz , Markus Rupp

Semi-supervised learning is attracting blooming attention, due to its success in combining unlabeled data. To mitigate potentially incorrect pseudo labels, recent frameworks mostly set a fixed confidence threshold to discard uncertain…

Computer Vision and Pattern Recognition · Computer Science 2023-08-15 Lihe Yang , Zhen Zhao , Lei Qi , Yu Qiao , Yinghuan Shi , Hengshuang Zhao

In this work we examine how fine-tuning impacts the fairness of contrastive Self-Supervised Learning (SSL) models. Our findings indicate that Batch Normalization (BN) statistics play a crucial role, and that updating only the BN statistics…

Machine Learning · Computer Science 2021-10-04 Jason Ramapuram , Dan Busbridge , Russ Webb

The problem of fully supervised classification is that it requires a tremendous amount of annotated data, however, in many datasets a large portion of data is unlabeled. To alleviate this problem semi-supervised learning (SSL) leverages the…

Machine Learning · Computer Science 2022-07-26 Ehsan Kazemi

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…

Computer Vision and Pattern Recognition · Computer Science 2026-03-09 Ariel Basso Madjoukeng , Jérôme Fink , Pierre Poitier , Edith Belise Kenmogne , Benoit Frenay