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Few-Shot Class-Incremental Learning (FSCIL) focuses on models learning new concepts from limited data while retaining knowledge of previous classes. Recently, many studies have started to leverage unlabeled samples to assist models in…

Computer Vision and Pattern Recognition · Computer Science 2025-08-01 Fan Lyu , Linglan Zhao , Chengyan Liu , Yinying Mei , Zhang Zhang , Jian Zhang , Fuyuan Hu , Liang Wang

Adapting object detectors learned with sufficient supervision to novel classes under low data regimes is charming yet challenging. In few-shot object detection (FSOD), the two-step training paradigm is widely adopted to mitigate the severe…

Computer Vision and Pattern Recognition · Computer Science 2022-12-16 Bohao Li , Chang Liu , Mengnan Shi , Xiaozhong Chen , Xiangyang Ji , Qixiang Ye

Current out-of-distribution (OOD) detection benchmarks are commonly built by defining one dataset as in-distribution (ID) and all others as OOD. However, these benchmarks unfortunately introduce some unwanted and impractical goals, e.g., to…

Computer Vision and Pattern Recognition · Computer Science 2021-08-27 Jingkang Yang , Haoqi Wang , Litong Feng , Xiaopeng Yan , Huabin Zheng , Wayne Zhang , Ziwei Liu

Few-Shot transfer learning has become a major focus of research as it allows recognition of new classes with limited labeled data. While it is assumed that train and test data have the same data distribution, this is often not the case in…

Computer Vision and Pattern Recognition · Computer Science 2023-03-17 Wenjian Wang , Lijuan Duan , Yuxi Wang , Junsong Fan , Zhi Gong , Zhaoxiang Zhang

Few-shot segmentation (FSS) aims to segment unseen classes given only a few annotated samples. Existing methods suffer the problem of feature undermining, i.e. potential novel classes are treated as background during training phase. Our…

Computer Vision and Pattern Recognition · Computer Science 2021-09-28 Lihe Yang , Wei Zhuo , Lei Qi , Yinghuan Shi , Yang Gao

Few-shot learning aims at rapidly adapting to novel categories with only a handful of samples at test time, which has been predominantly tackled with the idea of meta-learning. However, meta-learning approaches essentially learn across a…

Computer Vision and Pattern Recognition · Computer Science 2021-07-21 Jinhai Yang , Hua Yang , Lin Chen

Heterogeneous graph few-shot learning (HGFL) has been developed to address the label sparsity issue in heterogeneous graphs (HGs), which consist of various types of nodes and edges. The core concept of HGFL is to extract knowledge from…

Machine Learning · Computer Science 2024-04-17 Pengfei Ding , Yan Wang , Guanfeng Liu , Nan Wang , Xiaofang Zhou

Few-shot fine-grained visual categorization (FS-FGVC) focuses on identifying various subcategories within a common superclass given just one or few support examples. Most existing methods aim to boost classification accuracy by enriching…

Computer Vision and Pattern Recognition · Computer Science 2025-12-29 Zhiwen Yang , Jinglin Xu , Yuxin Pen

Few-shot Intent Classification (FSIC) is one of the key challenges in modular task-oriented dialog systems. While advanced FSIC methods are similar in using pretrained language models to encode texts and nearest neighbour-based inference…

Computation and Language · Computer Science 2022-10-13 Mohsen Mesgar , Thy Thy Tran , Goran Glavas , Iryna Gurevych

Few-shot classification (FSC) is a fundamental yet challenging task in computer vision that involves recognizing novel classes from limited data. While previous methods have focused on enhancing visual features or incorporating additional…

Computer Vision and Pattern Recognition · Computer Science 2024-08-22 Fan Liu , Wenwen Cai , Jian Huo , Chuanyi Zhang , Delong Chen , Jun Zhou

Recent large vision-language models such as CLIP have shown remarkable out-of-distribution (OOD) detection and generalization performance. However, their zero-shot in-distribution (ID) accuracy is often limited for downstream datasets.…

Computer Vision and Pattern Recognition · Computer Science 2024-07-30 Yifei Ming , Yixuan Li

Although few-shot learning and one-class classification (OCC), i.e., learning a binary classifier with data from only one class, have been separately well studied, their intersection remains rather unexplored. Our work addresses the…

Machine Learning · Computer Science 2021-02-12 Ahmed Frikha , Denis Krompaß , Hans-Georg Köpken , Volker Tresp

Few-shot learning (FSL) aims to address the data-scarce problem. A standard FSL framework is composed of two components: (1) Pre-train. Employ the base data to generate a CNN-based feature extraction model (FEM). (2) Meta-test. Apply the…

Computer Vision and Pattern Recognition · Computer Science 2021-11-09 Shuai Shao , Lei Xing , Yan Wang , Rui Xu , Chunyan Zhao , Yan-Jiang Wang , Bao-Di Liu

Semantically coherent out-of-distribution detection (SCOOD) is a recently proposed realistic OOD detection setting: given labeled in-distribution (ID) data and mixed in-distribution and out-of-distribution unlabeled data as the training…

Computer Vision and Pattern Recognition · Computer Science 2025-12-16 Zhimao Peng , Enguang Wang , Xialei Liu , Ming-Ming Cheng

Few-Shot Learning (FSL) algorithms have made substantial progress in learning novel concepts with just a handful of labelled data. To classify query instances from novel classes encountered at test-time, they only require a support set…

Machine Learning · Computer Science 2021-08-06 Etienne Bennequin , Victor Bouvier , Myriam Tami , Antoine Toubhans , Céline Hudelot

Existing works show that although modern neural networks achieve remarkable generalization performance on the in-distribution (ID) dataset, the accuracy drops significantly on the out-of-distribution (OOD) datasets \cite{recht2018cifar,…

Machine Learning · Computer Science 2022-03-30 Berfin Simsek , Melissa Hall , Levent Sagun

Cross-domain few-shot segmentation (CD-FSS) aims to segment unseen categories with very limited samples while alleviating the negative effects of domain shift between the source and target domains. At present, existing CD-FSS studies…

Computer Vision and Pattern Recognition · Computer Science 2026-05-15 Huan Ni , Qingshan Liu , Xiaonan Niu , Danfeng Hong , Lingli Zhao , Haiyan Guan

The existing few-shot video classification methods often employ a meta-learning paradigm by designing customized temporal alignment module for similarity calculation. While significant progress has been made, these methods fail to focus on…

Computer Vision and Pattern Recognition · Computer Science 2021-10-26 Zhenxi Zhu , Limin Wang , Sheng Guo , Gangshan Wu

Transfer learning based approaches have recently achieved promising results on the few-shot detection task. These approaches however suffer from ``catastrophic forgetting'' issue due to finetuning of base detector, leading to sub-optimal…

Computer Vision and Pattern Recognition · Computer Science 2022-10-12 Yihang She , Goutam Bhat , Martin Danelljan , Fisher Yu

Many meta-learning methods are proposed for few-shot detection. However, previous most methods have two main problems, poor detection APs, and strong bias because of imbalance and insufficient datasets. Previous works mainly alleviate these…

Computer Vision and Pattern Recognition · Computer Science 2021-06-16 Qian Li , Nan Guo , Xiaochun Ye , Duo Wang , Dongrui Fan , Zhimin Tang