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Zero-Shot Learning (ZSL) focuses on classifying samples of unseen classes with only their side semantic information presented during training. It cannot handle real-life, open-world scenarios where there are test samples of unknown classes…

Computer Vision and Pattern Recognition · Computer Science 2023-07-10 Tianqi Li , Guansong Pang , Xiao Bai , Jin Zheng , Lei Zhou , Xin Ning

We introduce a simple yet effective episode-based training framework for zero-shot learning (ZSL), where the learning system requires to recognize unseen classes given only the corresponding class semantics. During training, the model is…

Computer Vision and Pattern Recognition · Computer Science 2020-04-03 Yunlong Yu , Zhong Ji , Zhongfei Zhang , Jungong Han

Given the semantic descriptions of classes, Zero-Shot Learning (ZSL) aims to recognize unseen classes without labeled training data by exploiting semantic information, which contains knowledge between seen and unseen classes. Existing ZSL…

Computer Vision and Pattern Recognition · Computer Science 2021-03-31 Vivek Chalumuri , Bac Nguyen

Recently, zero-shot learning (ZSL) emerged as an exciting topic and attracted a lot of attention. ZSL aims to classify unseen classes by transferring the knowledge from seen classes to unseen classes based on the class description. Despite…

Computer Vision and Pattern Recognition · Computer Science 2021-02-02 Chandan Gautam , Sethupathy Parameswaran , Ashish Mishra , Suresh Sundaram

The Zero-Shot Learning (ZSL) task pertains to the identification of entities or relations in texts that were not seen during training. ZSL has emerged as a critical research area due to the scarcity of labeled data in specific domains, and…

Computation and Language · Computer Science 2023-07-26 Gabriele Picco , Marcos Martínez Galindo , Alberto Purpura , Leopold Fuchs , Vanessa López , Hoang Thanh Lam

Zero-shot skeleton-based action recognition (ZS-SAR) is fundamentally constrained by prevailing approaches that rely on aligning skeleton features with static, class-level semantics. This coarse-grained alignment fails to bridge the domain…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Jingmin Zhu , Anqi Zhu , James Bailey , Jun Liu , Hossein Rahmani , Mohammed Bennamoun , Farid Boussaid , Qiuhong Ke

Few-Shot Action Recognition (FSAR) aims to train a model with only a few labeled video instances. A key challenge in FSAR is handling divergent narrative trajectories for precise video matching. While the frame- and tuple-level alignment…

Computer Vision and Pattern Recognition · Computer Science 2025-04-09 SuBeen Lee , WonJun Moon , Hyun Seok Seong , Jae-Pil Heo

Zero-shot learning (ZSL) is a challenging task aiming at recognizing novel classes without any training instances. In this paper we present a simple but high-performance ZSL approach by generating pseudo feature representations (GPFR).…

Computer Vision and Pattern Recognition · Computer Science 2018-09-11 Jiang Lu , Jin Li , Ziang Yan , Changshui Zhang

In this paper, we propose an incremental learning method for end-to-end Automatic Speech Recognition (ASR) which enables an ASR system to perform well on new tasks while maintaining the performance on its originally learned ones. To…

Audio and Speech Processing · Electrical Eng. & Systems 2021-09-17 Li Fu , Xiaoxiao Li , Libo Zi , Zhengchen Zhang , Youzheng Wu , Xiaodong He , Bowen Zhou

Zero-shot learning (ZSL) aims at understanding unseen categories with no training examples from class-level descriptions. To improve the discriminative power of ZSL, we model the visual learning process of unseen categories with inspiration…

Computer Vision and Pattern Recognition · Computer Science 2021-02-18 Mohamed Elhoseiny , Kai Yi , Mohamed Elfeki

Few-shot action recognition aims to address the high cost and impracticality of manually labeling complex and variable video data in action recognition. It requires accurately classifying human actions in videos using only a few labeled…

Computer Vision and Pattern Recognition · Computer Science 2025-03-31 Yuyang Wanyan , Xiaoshan Yang , Weiming Dong , Changsheng Xu

Zero-shot learning (ZSL) aims to recognize the novel object categories using the semantic representation of categories, and the key idea is to explore the knowledge of how the novel class is semantically related to the familiar classes.…

Computer Vision and Pattern Recognition · Computer Science 2019-07-19 Ying Shi , Wei Wei , Zhiming Zheng

Zero-shot learning (ZSL) enables solving a task without the need to see its examples. In this paper, we propose two ZSL frameworks that learn to synthesize parameters for novel unseen classes. First, we propose to cast the problem of ZSL as…

Computer Vision and Pattern Recognition · Computer Science 2019-07-19 Soravit Changpinyo , Wei-Lun Chao , Boqing Gong , Fei Sha

Event extraction (EE) is the task of identifying interested event mentions from text. Conventional efforts mainly focus on the supervised setting. However, these supervised models cannot generalize to event types out of the pre-defined…

Computation and Language · Computer Science 2022-11-15 Hongming Zhang , Wenlin Yao , Dong Yu

Zero-shot text learning enables text classifiers to handle unseen classes efficiently, alleviating the need for task-specific training data. A simple approach often relies on comparing embeddings of query (text) to those of potential…

Information Retrieval · Computer Science 2024-06-28 Tassallah Abdullahi , Ritambhara Singh , Carsten Eickhoff

Vision-Language Models (VLMs) have demonstrated impressive capabilities in zero-shot action recognition by learning to associate video embeddings with class embeddings. However, a significant challenge arises when relying solely on action…

Computer Vision and Pattern Recognition · Computer Science 2025-11-04 Yehna Kim , Young-Eun Kim , Seong-Whan Lee

Human action recognition (HAR) in videos is one of the core tasks of video understanding. Based on video sequences, the goal is to recognize actions performed by humans. While HAR has received much attention in the visible spectrum, action…

Computer Vision and Pattern Recognition · Computer Science 2022-04-20 Soufiane Lamghari , Guillaume-Alexandre Bilodeau , Nicolas Saunier

Zero-shot learning (ZSL) aims to predict unseen classes whose samples have never appeared during training. One of the most effective and widely used semantic information for zero-shot image classification are attributes which are…

Computer Vision and Pattern Recognition · Computer Science 2023-02-17 Zhuo Chen , Yufeng Huang , Jiaoyan Chen , Yuxia Geng , Wen Zhang , Yin Fang , Jeff Z. Pan , Huajun Chen

Zero-shot skeleton action recognition is a non-trivial task that requires robust unseen generalization with prior knowledge from only seen classes and shared semantics. Existing methods typically build the skeleton-semantics interactions by…

Computer Vision and Pattern Recognition · Computer Science 2024-11-27 Yang Chen , Jingcai Guo , Song Guo , Dacheng Tao

Zero-Shot Learning (ZSL) aims to recognize unseen classes by generalizing the knowledge, i.e., visual and semantic relationships, obtained from seen classes, where image augmentation techniques are commonly applied to improve the…

Computer Vision and Pattern Recognition · Computer Science 2023-08-02 Zhi Chen , Pengfei Zhang , Jingjing Li , Sen Wang , Zi Huang