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Few-shot learning has been extensively explored to address problems where the amount of labeled samples is very limited for some classes. In the semi-supervised few-shot learning setting, substantial quantities of unlabeled samples are…

Computer Vision and Pattern Recognition · Computer Science 2025-12-16 Souvik Maji , Rhythm Baghel , Pratik Mazumder

Most recent few-shot learning approaches are based on meta-learning with episodic training. However, prior studies encounter two crucial problems: (1) \textit{the presence of inductive bias}, and (2) \textit{the occurrence of catastrophic…

Multimedia · Computer Science 2024-09-18 Bingzhi Chen , Haoming Zhou , Yishu Liu , Biqing Zeng , Jiahui Pan , Guangming Lu

Few-shot class-incremental learning (FSCIL) struggles to incrementally recognize novel classes from few examples without catastrophic forgetting of old classes or overfitting to new classes. We propose TLCE, which ensembles multiple…

Computer Vision and Pattern Recognition · Computer Science 2023-12-08 Shuangmei Wang , Yang Cao , Tieru Wu

What do different contrastive learning (CL) losses actually optimize for? Although multiple CL methods have demonstrated remarkable representation learning capabilities, the differences in their inner workings remain largely opaque. In this…

Machine Learning · Computer Science 2024-05-29 Panagiotis Koromilas , Giorgos Bouritsas , Theodoros Giannakopoulos , Mihalis Nicolaou , Yannis Panagakis

While many deep learning methods have seen significant success in tackling the problem of domain adaptation and few-shot learning separately, far fewer methods are able to jointly tackle both problems in Cross-Domain Few-Shot Learning…

Computer Vision and Pattern Recognition · Computer Science 2020-12-04 John Cai , Bill Cai , Sheng Mei Shen

Few-shot learning aims to handle previously unseen tasks using only a small amount of new training data. In preparing (or meta-training) a few-shot learner, however, massive labeled data are necessary. In the real world, unfortunately,…

Machine Learning · Computer Science 2020-03-19 Jun Seo , Sung Whan Yoon , Jaekyun Moon

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…

Computer Vision and Pattern Recognition · Computer Science 2021-05-18 Yuhang Zhang , Xiaopeng Zhang , Robert. C. Qiu , Jie Li , Haohang Xu , Qi Tian

Real-world classification tasks are frequently required to work in an open-set setting. This is especially challenging for few-shot learning problems due to the small sample size for each known category, which prevents existing open-set…

Computer Vision and Pattern Recognition · Computer Science 2021-09-15 Jedrzej Kozerawski , Matthew Turk

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…

Computer Vision and Pattern Recognition · Computer Science 2022-11-17 Yejia Zhang , Xinrong Hu , Nishchal Sapkota , Yiyu Shi , Danny Z. Chen

Unsupervised domain adaptation (UDA) aims to transfer knowledge learned from a labeled source domain to an unlabeled target domain. Contrastive learning (CL) in the context of UDA can help to better separate classes in feature space.…

Computer Vision and Pattern Recognition · Computer Science 2022-06-09 Mingxuan Gu , Sulaiman Vesal , Mareike Thies , Zhaoya Pan , Fabian Wagner , Mirabela Rusu , Andreas Maier , Ronak Kosti

Despite their effectiveness, current deep learning models face challenges with images coming from different domains with varying appearance and content. We introduce SegCLR, a versatile framework designed to segment images across different…

Image and Video Processing · Electrical Eng. & Systems 2025-04-15 Alvaro Gomariz , Yusuke Kikuchi , Yun Yvonna Li , Thomas Albrecht , Andreas Maunz , Daniela Ferrara , Huanxiang Lu , Orcun Goksel

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…

Computer Vision and Pattern Recognition · Computer Science 2023-11-29 Zijun Long , George Killick , Lipeng Zhuang , Richard McCreadie , Gerardo Aragon Camarasa , Paul Henderson

Modern GANs excel at generating high quality and diverse images. However, when transferring the pretrained GANs on small target data (e.g., 10-shot), the generator tends to replicate the training samples. Several methods have been proposed…

Computer Vision and Pattern Recognition · Computer Science 2023-04-18 Yunqing Zhao , Henghui Ding , Houjing Huang , Ngai-Man Cheung

Few-shot segmentation enables the model to recognize unseen classes with few annotated examples. Most existing methods adopt prototype learning architecture, where support prototype vectors are expanded and concatenated with query features…

Computer Vision and Pattern Recognition · Computer Science 2022-03-09 Xiaoyu Zhao , Xiaoqian Chen , Zhiqiang Gong , Wen Yao , Yunyang Zhang , Xiaohu Zheng

Contrastive learning (CL) is one of the most successful paradigms for self-supervised learning (SSL). In a principled way, it considers two augmented "views" of the same image as positive to be pulled closer, and all other images as…

Machine Learning · Computer Science 2023-06-21 Chun-Hsiao Yeh , Cheng-Yao Hong , Yen-Chi Hsu , Tyng-Luh Liu , Yubei Chen , Yann LeCun

We study the few-shot learning (FSL) problem, where a model learns to recognize new objects with extremely few labeled training data per category. Most of previous FSL approaches resort to the meta-learning paradigm, where the model…

Computer Vision and Pattern Recognition · Computer Science 2021-09-08 Zejiang Hou , Sun-Yuan Kung

State of the art (SOTA) few-shot learning (FSL) methods suffer significant performance drop in the presence of domain differences between source and target datasets. The strong discrimination ability on the source dataset does not…

Computer Vision and Pattern Recognition · Computer Science 2021-09-24 Hanwen Liang , Qiong Zhang , Peng Dai , Juwei Lu

Recent years have witnessed many successful applications of contrastive learning in diverse domains, yet its self-supervised version still remains many exciting challenges. As the negative samples are drawn from unlabeled datasets, a…

Machine Learning · Computer Science 2024-02-01 Bin Liu , Bang Wang , Tianrui Li

In recent years, impressive performance of deep learning technology has been recognized in Synthetic Aperture Radar (SAR) Automatic Target Recognition (ATR). Since a large amount of annotated data is required in this technique, it poses a…

Computer Vision and Pattern Recognition · Computer Science 2024-08-08 Yikui Zhai , Wenlve Zhou , Bing Sun , Jingwen Li , Qirui Ke , Zilu Ying , Junying Gan , Chaoyun Mai , Ruggero Donida Labati , Vincenzo Piuri , Fabio Scotti

Over the last couple of years few-shot learning (FSL) has attracted great attention towards minimizing the dependency on labeled training examples. An inherent difficulty in FSL is the handling of ambiguities resulting from having too few…

Computer Vision and Pattern Recognition · Computer Science 2023-02-06 Orhun Buğra Baran , Ramazan Gökberk Cinbiş