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Zero-shot recognition (ZSR) deals with the problem of predicting class labels for target domain instances based on source domain side information (e.g. attributes) of unseen classes. We formulate ZSR as a binary prediction problem. Our…

Computer Vision and Pattern Recognition · Computer Science 2016-08-22 Ziming Zhang , Venkatesh Saligrama

Zero-shot learning aims at recognizing unseen classes (no training example) with knowledge transferred from seen classes. This is typically achieved by exploiting a semantic feature space shared by both seen and unseen classes, i.e.,…

Computer Vision and Pattern Recognition · Computer Science 2020-05-01 Jingcai Guo , Song Guo

Despite significant progress in object categorization, in recent years, a number of important challenges remain, mainly, ability to learn from limited labeled data and ability to recognize object classes within large, potentially open, set…

Computer Vision and Pattern Recognition · Computer Science 2016-04-26 Yanwei Fu , Leonid Sigal

Learning to classify unseen class samples at test time is popularly referred to as zero-shot learning (ZSL). If test samples can be from training (seen) as well as unseen classes, it is a more challenging problem due to the existence of…

Machine Learning · Statistics 2019-09-11 Vinay Kumar Verma , Dhanajit Brahma , Piyush Rai

Vision-language pre-trained models (VLMs) such as CLIP have demonstrated remarkable zero-shot generalization, and prompt learning has emerged as an efficient alternative to full fine-tuning. However, existing methods often struggle with…

Computer Vision and Pattern Recognition · Computer Science 2025-07-30 Zhaolong Wang , Tongfeng Sun , Mingzheng Du , Yachao Huang

Zero-shot text classifiers based on label descriptions embed an input text and a set of labels into the same space: measures such as cosine similarity can then be used to select the most similar label description to the input text as the…

Computation and Language · Computer Science 2022-05-25 Angelo Basile , Marc Franco-Salvador , Paolo Rosso

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

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

Zero-Shot Learning (ZSL) presents the challenge of identifying categories not seen during training. This task is crucial in domains where it is costly, prohibited, or simply not feasible to collect training data. ZSL depends on a mapping…

Computer Vision and Pattern Recognition · Computer Science 2025-06-10 William Heyden , Habib Ullah , M. Salman Siddiqui , Fadi Al Machot

A common problem with most zero and few-shot learning approaches is they suffer from bias towards seen classes resulting in sub-optimal performance. Existing efforts aim to utilize unlabeled images from unseen classes (i.e transductive…

Computer Vision and Pattern Recognition · Computer Science 2021-07-15 Gaurav Bhatt , Shivam Chandhok , Vineeth N Balasubramanian

Zero-shot learning aims to classify visual objects without any training data via knowledge transfer between seen and unseen classes. This is typically achieved by exploring a semantic embedding space where the seen and unseen classes can be…

Computer Vision and Pattern Recognition · Computer Science 2015-06-04 Zhen-Yong Fu , Tao Xiang , Shaogang Gong

Generalized zero-shot learning (GZSL) aims to train a model for classifying data samples under the condition that some output classes are unknown during supervised learning. To address this challenging task, GZSL leverages semantic…

Computer Vision and Pattern Recognition · Computer Science 2022-07-18 Farhad Pourpanah , Moloud Abdar , Yuxuan Luo , Xinlei Zhou , Ran Wang , Chee Peng Lim , Xi-Zhao Wang , Q. M. Jonathan Wu

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

Generalised zero-shot learning (GZSL) methods aim to classify previously seen and unseen visual classes by leveraging the semantic information of those classes. In the context of GZSL, semantic information is non-visual data such as a text…

Computer Vision and Pattern Recognition · Computer Science 2019-08-07 Rafael Felix , Ben Harwood , Michele Sasdelli , Gustavo Carneiro

We study the problem of recognizing visual entities from the textual descriptions of their classes. Specifically, given birds' images with free-text descriptions of their species, we learn to classify images of previously-unseen species…

Computation and Language · Computer Science 2020-10-08 Tzuf Paz-Argaman , Yuval Atzmon , Gal Chechik , Reut Tsarfaty

Zero-shot learning extends the conventional object classification to the unseen class recognition by introducing semantic representations of classes. Existing approaches predominantly focus on learning the proper mapping function for…

Computer Vision and Pattern Recognition · Computer Science 2019-12-03 Yizhe Zhu , Jianwen Xie , Zhiqiang Tang , Xi Peng , Ahmed Elgammal

This paper investigates a challenging problem of zero-shot learning in the multi-label scenario (MLZSL), wherein the model is trained to recognize multiple unseen classes within a sample (e.g., an image) based on seen classes and auxiliary…

Computer Vision and Pattern Recognition · Computer Science 2024-08-27 Ziming Liu , Jingcai Guo , Song Guo , Xiaocheng Lu

Feature selection, an effective technique for dimensionality reduction, plays an important role in many machine learning systems. Supervised knowledge can significantly improve the performance. However, faced with the rapid growth of newly…

Computer Vision and Pattern Recognition · Computer Science 2021-07-15 Zheng Wang , Qiao Wang , Tingzhang Zhao , Xiaojun Ye

Zero-shot entity and relation classification models leverage available external information of unseen classes -- e.g., textual descriptions -- to annotate input text data. Thanks to the minimum data requirement, Zero-Shot Learning (ZSL)…

Computation and Language · Computer Science 2024-06-05 Gabriele Picco , Leopold Fuchs , Marcos Martínez Galindo , Alberto Purpura , Vanessa López , Hoang Thanh Lam

Due to the high costs associated with finetuning large language models, various recent works propose to adapt them to specific tasks without any parameter updates through in-context learning. Unfortunately, for in-context learning there is…

Computation and Language · Computer Science 2022-02-15 Yanchen Liu , Timo Schick , Hinrich Schütze