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Generalized Zero-Shot Learning (GZSL) aims to train a classifier that can generalize to unseen classes, using a set of attributes as auxiliary information, and the visual features extracted from a pre-trained convolutional neural network.…

Computer Vision and Pattern Recognition · Computer Science 2022-11-23 Paola Cascante-Bonilla , Leonid Karlinsky , James Seale Smith , Yanjun Qi , Vicente Ordonez

Zero-shot learning (ZSL) which aims to recognize unseen object classes by only training on seen object classes, has increasingly been of great interest in Machine Learning, and has registered with some successes. Most existing ZSL methods…

Computer Vision and Pattern Recognition · Computer Science 2019-07-04 Wen Tang , Ashkan Panahi , Hamid Krim

In Generalized Zero-Shot Learning (GZSL), unseen categories (for which no visual data are available at training time) can be predicted by leveraging their class embeddings (e.g., a list of attributes describing them) together with a…

Computer Vision and Pattern Recognition · Computer Science 2021-09-15 Federico Marmoreo , Julio Ivan Davila Carrazco , Vittorio Murino , Jacopo Cavazza

This work explores the zero-shot compositional learning ability of large pre-trained vision-language models(VLMs) within the prompt-based learning framework and propose a model (\textit{PromptCompVL}) to solve the compositonal zero-shot…

Computer Vision and Pattern Recognition · Computer Science 2022-11-10 Guangyue Xu , Parisa Kordjamshidi , Joyce Chai

Zero-shot learning is a learning regime that recognizes unseen classes by generalizing the visual-semantic relationship learned from the seen classes. To obtain an effective ZSL model, one may resort to curating training samples from…

Computer Vision and Pattern Recognition · Computer Science 2022-09-07 Zhi Chen , Yadan Luo , Sen Wang , Jingjing Li , Zi Huang

Pre-training plays a vital role in various vision tasks, such as object recognition and detection. Commonly used pre-training methods, which typically rely on randomized approaches like uniform or Gaussian distributions to initialize model…

Computer Vision and Pattern Recognition · Computer Science 2024-11-15 Chen-Long Duan , Yong Li , Xiu-Shen Wei , Lin Zhao

Compositional Zero-shot Learning (CZSL) aims to recognize novel concepts composed of known knowledge without training samples. Standard CZSL either identifies visual primitives or enhances unseen composed entities, and as a result,…

Computer Vision and Pattern Recognition · Computer Science 2023-05-03 Xiaocheng Lu , Ziming Liu , Song Guo , Jingcai Guo , Fushuo Huo , Sikai Bai , Tao Han

In vision domain, large-scale natural datasets typically exhibit long-tailed distribution which has large class imbalance between head and tail classes. This distribution poses difficulty in learning good representations for tail classes.…

Computer Vision and Pattern Recognition · Computer Science 2023-05-05 Anthony Meng Huat Tiong , Junnan Li , Guosheng Lin , Boyang Li , Caiming Xiong , Steven C. H. Hoi

This paper studies the problem of Generalized Zero-shot Learning (G-ZSL), whose goal is to classify instances belonging to both seen and unseen classes at the test time. We propose a novel space decomposition method to solve G-ZSL. Some…

Machine Learning · Computer Science 2021-08-31 Hanze Dong , Yanwei Fu , Sung Ju Hwang , Leonid Sigal , Xiangyang Xue

Real-world data typically follow a long-tailed distribution, where a few majority categories occupy most of the data while most minority categories contain a limited number of samples. Classification models minimizing cross-entropy struggle…

Computer Vision and Pattern Recognition · Computer Science 2022-09-13 Jianggang Zhu , Zheng Wang , Jingjing Chen , Yi-Ping Phoebe Chen , Yu-Gang Jiang

In this work, we introduce a novel strategy for long-tail recognition that addresses the tail classes' few-shot problem via training-free knowledge transfer. Our objective is to transfer knowledge acquired from information-rich common…

Computer Vision and Pattern Recognition · Computer Science 2022-04-13 Sarah Parisot , Pedro M. Esperanca , Steven McDonagh , Tamas J. Madarasz , Yongxin Yang , Zhenguo Li

Zero-shot learning (ZSL) has been shown to be a promising approach to generalizing a model to categories unseen during training by leveraging class attributes, but challenges still remain. Recently, methods using generative models to combat…

Computer Vision and Pattern Recognition · Computer Science 2021-02-24 Vinay Kumar Verma , Kevin Liang , Nikhil Mehta , Lawrence Carin

Recently, large-scale pre-trained vision-language models have presented benefits for alleviating class imbalance in long-tailed recognition. However, the long-tailed data distribution can corrupt the representation space, where the distance…

Computer Vision and Pattern Recognition · Computer Science 2023-11-07 Siming Fu , Xiaoxuan He , Xinpeng Ding , Yuchen Cao , Hualiang Wang

It is not uncommon that real-world data are distributed with a long tail. For such data, the learning of deep neural networks becomes challenging because it is hard to classify tail classes correctly. In the literature, several existing…

Computer Vision and Pattern Recognition · Computer Science 2024-07-19 Mengke Li , Yiu-ming Cheung , Yang Lu , Zhikai Hu , Weichao Lan , Hui Huang

Open-World Compositional Zero-shot Learning (OW-CZSL) aims to recognize novel compositions of state and object primitives in images with no priors on the compositional space, which induces a tremendously large output space containing all…

Computer Vision and Pattern Recognition · Computer Science 2023-12-18 Fushuo Huo , Wenchao Xu , Song Guo , Jingcai Guo , Haozhao Wang , Ziming Liu , Xiaocheng Lu

Real-world data is predominantly unbalanced and long-tailed, but deep models struggle to recognize rare classes in the presence of frequent classes. Often, classes can be accompanied by side information like textual descriptions, but it is…

Machine Learning · Computer Science 2020-11-05 Dvir Samuel , Yuval Atzmon , Gal Chechik

Compositional Zero-Shot Learning (CZSL) aims to recognize unseen compositions formed from seen state and object during training. Since the same state may be various in the visual appearance while entangled with different objects, CZSL is…

Computer Vision and Pattern Recognition · Computer Science 2022-06-30 Xiangyu Li , Xu Yang , Kun Wei , Cheng Deng , Muli Yang

Compositional Zero-Shot Learning (CZSL) aims to learn semantic primitives (attributes and objects) from seen compositions and recognize unseen attribute-object compositions. Existing CZSL datasets focus on single attributes, neglecting the…

Computer Vision and Pattern Recognition · Computer Science 2026-01-13 Shuo Xu , Sai Wang , Xinyue Hu , Yutian Lin , Sibei Yang , Yu Wu

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

Continual zero-shot learning(CZSL) is a new domain to classify objects sequentially the model has not seen during training. It is more suitable than zero-shot and continual learning approaches in real-case scenarios when data may come…

Computer Vision and Pattern Recognition · Computer Science 2021-04-27 Subhankar Ghosh