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Zero-shot learning (ZSL) is a framework to classify images belonging to unseen classes based on solely semantic information about these unseen classes. In this paper, we propose a new ZSL algorithm using coupled dictionary learning. The…

Computer Vision and Pattern Recognition · Computer Science 2021-10-26 Mohammad Rostami , Soheil Kolouri , Zak Murez , Yuri Owekcho , Eric Eaton , Kuyngnam Kim

Current deep visual recognition systems suffer from severe performance degradation when they encounter new images from classes and scenarios unseen during training. Hence, the core challenge of Zero-Shot Learning (ZSL) is to cope with the…

Computer Vision and Pattern Recognition · Computer Science 2020-08-12 Massimiliano Mancini , Zeynep Akata , Elisa Ricci , Barbara Caputo

Few-shot learning aims to recognize instances from novel classes with few labeled samples, which has great value in research and application. Although there has been a lot of work in this area recently, most of the existing work is based on…

Computer Vision and Pattern Recognition · Computer Science 2020-10-14 Congqi Cao , Yajuan Li , Qinyi Lv , Peng Wang , Yanning Zhang

The number of categories for action recognition is growing rapidly and it has become increasingly hard to label sufficient training data for learning conventional models for all categories. Instead of collecting ever more data and labelling…

Computer Vision and Pattern Recognition · Computer Science 2016-12-05 Xun Xu , Timothy Hospedales , Shaogang Gong

The primary assumption of conventional supervised learning or classification is that the test samples are drawn from the same distribution as the training samples, which is called closed set learning or classification. In many practical…

Computer Vision and Pattern Recognition · Computer Science 2022-08-23 Sepideh Esmaeilpour , Lei Shu , Bing Liu

Hashing algorithms have been widely used in large-scale image retrieval tasks, especially for seen class data. Zero-shot hashing algorithms have been proposed to handle unseen class data. The key technique in these algorithms involves…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Yan Jiang , Zhongmiao Qi , Jianhao Li , Jiangbo Qian , Chong Wang , Yu Xin

Most methods tackle zero-shot video classification by aligning visual-semantic representations within seen classes, which limits generalization to unseen classes. To enhance model generalizability, this paper presents an end-to-end…

Computer Vision and Pattern Recognition · Computer Science 2022-03-30 Shi Pu , Kaili Zhao , Mao Zheng

Few-shot action recognition aims to recognize action classes with few training samples. Most existing methods adopt a meta-learning approach with episodic training. In each episode, the few samples in a meta-training task are split into…

Computer Vision and Pattern Recognition · Computer Science 2021-10-26 Xiatian Zhu , Antoine Toisoul , Juan-Manuel Perez-Rua , Li Zhang , Brais Martinez , Tao Xiang

Zero-shot Learning (ZSL) aims to enable classifiers to identify unseen classes. This is typically achieved by generating visual features for unseen classes based on learned visual-semantic correlations from seen classes. However, most…

Computer Vision and Pattern Recognition · Computer Science 2025-02-12 Zihan Ye , Shreyank N. Gowda , Xiaowei Huang , Haotian Xu , Yaochu Jin , Kaizhu Huang , Xiaobo Jin

Zero-shot learning aims to recognize instances of unseen classes, for which no visual instance is available during training, by learning multimodal relations between samples from seen classes and corresponding class semantic…

Computer Vision and Pattern Recognition · Computer Science 2020-10-08 Yannick Le Cacheux , Hervé Le Borgne , Michel Crucianu

Zero-shot learning (ZSL) aims to recognize objects of novel classes without any training samples of specific classes, which is achieved by exploiting the semantic information and auxiliary datasets. Recently most ZSL approaches focus on…

Computer Vision and Pattern Recognition · Computer Science 2018-07-25 Huajie Jiang , Ruiping Wang , Shiguang Shan , Xilin Chen

Action recognition is a fundamental ability for social species. Yet, its underlying computations are not well understood. Classical psychophysical studies using simplified stimuli have shown that humans can perceive body motion even under…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Prerana Kumar , Martin A. Giese

Existing zero-shot temporal action detection (ZSTAD) methods predominantly use fully supervised or unsupervised strategies to recognize unseen activities. However, these training-based methods are prone to domain shifts and require high…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Chaolei Han , Hongsong Wang , Jidong Kuang , Lei Zhang , Jie Gui

Zero-shot learning (ZSL) aims to recognize unseen classes accurately by learning seen classes and known attributes, but correlations in attributes were ignored by previous study which lead to classification results confused. To solve this…

Computer Vision and Pattern Recognition · Computer Science 2020-09-15 Chunlai Chai , Yukuan Lou , Shijin Zhang

Action recognition is a fundamental capability for humanoid robots to interact and cooperate with humans. This application requires the action recognition system to be designed so that new actions can be easily added, while unknown actions…

Robotics · Computer Science 2025-09-16 Stefano Berti , Andrea Rosasco , Michele Colledanchise , Lorenzo Natale

Generalized zero-shot semantic segmentation of 3D point clouds aims to classify each point into both seen and unseen classes. A significant challenge with these models is their tendency to make biased predictions, often favoring the classes…

Computer Vision and Pattern Recognition · Computer Science 2025-09-11 Hyeonseok Kim , Byeongkeun Kang , Yeejin Lee

Zero-Shot Action Recognition (ZSAR) aims to recognize video actions that have never been seen during training. Most existing methods assume a shared semantic space between seen and unseen actions and intend to directly learn a mapping from…

Computer Vision and Pattern Recognition · Computer Science 2022-06-23 Zhiyi Gao , Yonghong Hou , Wanqing Li , Zihui Guo , Bin Yu

Human beings not only have the ability to recognize novel unseen classes, but also can incrementally incorporate the new classes to existing knowledge preserved. However, zero-shot learning models assume that all seen classes should be…

Computer Vision and Pattern Recognition · Computer Science 2021-03-30 Sixiao Zheng , Yanwei Fu , Yanxi Hou

Zero-shot point cloud segmentation aims to make deep models capable of recognizing novel objects in point cloud that are unseen in the training phase. Recent trends favor the pipeline which transfers knowledge from seen classes with labels…

Computer Vision and Pattern Recognition · Computer Science 2023-07-21 Yuhang Lu , Qi Jiang , Runnan Chen , Yuenan Hou , Xinge Zhu , Yuexin Ma

General purpose semantic segmentation relies on a backbone CNN network to extract discriminative features that help classify each image pixel into a 'seen' object class (ie., the object classes available during training) or a background…

Computer Vision and Pattern Recognition · Computer Science 2021-10-06 Ce Wang , Moshiur Farazi , Nick Barnes
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