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As unlabeled data carry rich task-relevant information, they are proven useful for few-shot learning of language model. The question is how to effectively make use of such data. In this work, we revisit the self-training technique for…

Computation and Language · Computer Science 2021-10-05 Yiming Chen , Yan Zhang , Chen Zhang , Grandee Lee , Ran Cheng , Haizhou Li

Human action recognition often struggles with deep semantic understanding, complex contextual information, and fine-grained distinction, limitations that traditional methods frequently encounter when dealing with diverse video data.…

Computer Vision and Pattern Recognition · Computer Science 2025-09-09 Jingwei Peng , Zhixuan Qiu , Boyu Jin , Surasakdi Siripong

The application of deep learning to medical image segmentation has been hampered due to the lack of abundant pixel-level annotated data. Few-shot Semantic Segmentation (FSS) is a promising strategy for breaking the deadlock. However, a…

Computer Vision and Pattern Recognition · Computer Science 2021-10-26 Xiaoang Shen , Guokai Zhang , Huilin Lai , Jihao Luo , Jianwei Lu , Ye Luo

Few-shot semantic segmentation addresses the learning task in which only few images with ground truth pixel-level labels are available for the novel classes of interest. One is typically required to collect a large mount of data (i.e., base…

Computer Vision and Pattern Recognition · Computer Science 2021-11-03 Yuan-Hao Lee , Fu-En Yang , Yu-Chiang Frank Wang

Human Action Anomaly Detection (HAAD) aims to identify anomalous actions given only normal action data during training. Existing methods typically follow a one-model-per-category paradigm, requiring separate training for each action…

Computer Vision and Pattern Recognition · Computer Science 2025-08-26 Koichiro Kamide , Shunsuke Sakai , Shun Maeda , Chunzhi Gu , Chao Zhang

Thanks to capability to alleviate the cost of large-scale annotation, few-shot action recognition (FSAR) has attracted increased attention of researchers in recent years. Existing FSAR approaches typically neglect the role of individual…

Computer Vision and Pattern Recognition · Computer Science 2025-09-23 Zilin Gao , Qilong Wang , Bingbing Zhang , Qinghua Hu , Peihua Li

Most existing studies on few-shot learning focus on unimodal settings, where models are trained to generalize to unseen data using a limited amount of labeled examples from a single modality. However, real-world data are inherently…

Computer Vision and Pattern Recognition · Computer Science 2025-03-12 Zhengwei Yang , Yuke Li , Qiang Sun , Basura Fernando , Heng Huang , Zheng Wang

Text classification is vital for Web for Good applications like hate speech and misinformation detection. However, traditional models (e.g., BERT) often fail in dynamic few-shot settings where labeled data are scarce, and target labels…

Computation and Language · Computer Science 2026-01-30 Yubo Wang , Haoyang Li , Fei Teng , Lei Chen

The goal of this paper is to bypass the need for labelled examples in few-shot video understanding at run time. While proven effective, in many practical video settings even labelling a few examples appears unrealistic. This is especially…

Computer Vision and Pattern Recognition · Computer Science 2022-04-20 Pengwan Yang , Yuki M. Asano , Pascal Mettes , Cees G. M. Snoek

Multi-label zero-shot learning extends conventional single-label zero-shot learning to a more realistic scenario that aims at recognizing multiple unseen labels of classes for each input sample. Existing works usually exploit attention…

Computer Vision and Pattern Recognition · Computer Science 2022-03-08 Ziming Liu , Song Guo , Jingcai Guo , Yuanyuan Xu , Fushuo Huo

Recent progress in the few-shot adaptation of Vision-Language Models (VLMs) has further pushed their generalization capabilities, at the expense of just a few labeled samples within the target downstream task. However, this promising,…

Computer Vision and Pattern Recognition · Computer Science 2024-06-04 Maxime Zanella , Ismail Ben Ayed

Exploring open-vocabulary video action recognition is a promising venture, which aims to recognize previously unseen actions within any arbitrary set of categories. Existing methods typically adapt pretrained image-text models to the video…

Computer Vision and Pattern Recognition · Computer Science 2023-12-06 Chengyou Jia , Minnan Luo , Xiaojun Chang , Zhuohang Dang , Mingfei Han , Mengmeng Wang , Guang Dai , Sizhe Dang , Jingdong Wang

Few-shot video classification aims to learn new video categories with only a few labeled examples, alleviating the burden of costly annotation in real-world applications. However, it is particularly challenging to learn a class-invariant…

Computer Vision and Pattern Recognition · Computer Science 2021-05-12 Songyang Zhang , Jiale Zhou , Xuming He

Existing temporal action localization (TAL) works rely on a large number of training videos with exhaustive segment-level annotation, preventing them from scaling to new classes. As a solution to this problem, few-shot TAL (FS-TAL) aims to…

Computer Vision and Pattern Recognition · Computer Science 2021-10-22 Sauradip Nag , Xiatian Zhu , Tao Xiang

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

Medical image segmentation is challenging due to the diversity of medical images and the lack of labeled data, which motivates recent developments in federated semi-supervised learning (FSSL) to leverage a large amount of unlabeled data…

Computer Vision and Pattern Recognition · Computer Science 2025-08-06 Zhipeng Deng , Zhe Xu , Tsuyoshi Isshiki , Yefeng Zheng

Few-shot anomaly detection (FSAD) methods identify anomalous regions with few known normal samples. Most existing methods rely on the generalization ability of pre-trained vision-language models (VLMs) to recognize potentially anomalous…

Computer Vision and Pattern Recognition · Computer Science 2025-10-31 Yuanting Fan , Jun Liu , Xiaochen Chen , Bin-Bin Gao , Jian Li , Yong Liu , Jinlong Peng , Chengjie Wang

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

In autonomous driving, 3D LiDAR plays a crucial role in understanding the vehicle's surroundings. However, the newly emerged, unannotated objects presents few-shot learning problem for semantic segmentation. This paper addresses the…

Computer Vision and Pattern Recognition · Computer Science 2024-08-29 Junbao Zhou , Jilin Mei , Pengze Wu , Liang Chen , Fangzhou Zhao , Xijun Zhao , Yu Hu

Temporal language grounding (TLG) aims to localize a video segment in an untrimmed video based on a natural language description. To alleviate the expensive cost of manual annotations for temporal boundary labels, we are dedicated to the…

Computer Vision and Pattern Recognition · Computer Science 2022-10-24 Yuechen Wang , Wengang Zhou , Houqiang Li