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Real-world data are long-tailed, the lack of tail samples leads to a significant limitation in the generalization ability of the model. Although numerous approaches of class re-balancing perform well for moderate class imbalance problems,…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Yanbiao Ma , Licheng Jiao , Fang Liu , Shuyuan Yang , Xu Liu , Puhua Chen

The heavy reliance on data is one of the major reasons that currently limit the development of deep learning. Data quality directly dominates the effect of deep learning models, and the long-tailed distribution is one of the factors…

Computer Vision and Pattern Recognition · Computer Science 2022-05-30 Lu Yang , He Jiang , Qing Song , Jun Guo

Zero-shot learning (ZSL) aims to recognize the unseen classes in the open-world guided by the side-information (e.g., attributes). Its key task is how to infer the latent semantic knowledge between visual and attribute features on seen…

Computer Vision and Pattern Recognition · Computer Science 2026-03-19 Shiming Chen , Shuhuang Chen , Guo-Sen Xie , Xinge You

Zero-shot learning (ZSL) is made possible by learning a projection function between a feature space and a semantic space (e.g.,~an attribute space). Key to ZSL is thus to learn a projection that is robust against the often large domain gap…

Computer Vision and Pattern Recognition · Computer Science 2018-10-22 Zhiwu Lu , Jiechao Guan , Aoxue Li , Tao Xiang , An Zhao , Ji-Rong Wen

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

Methods proposed in the literature for zero-shot learning (ZSL) are typically suitable for offline learning and cannot continually learn from sequential streaming data. The sequential data comes in the form of tasks during training.…

Computer Vision and Pattern Recognition · Computer Science 2022-09-27 Chandan Gautam , Sethupathy Parameswaran , Ashish Mishra , Suresh Sundaram

Zero-shot learning (ZSL) aims to transfer knowledge from seen classes to unseen ones so that the latter can be recognised without any training samples. This is made possible by learning a projection function between a feature space and a…

Computer Vision and Pattern Recognition · Computer Science 2018-10-22 Aoxue Li , Zhiwu Lu , Jiechao Guan , Tao Xiang , Liwei Wang , Ji-Rong Wen

Conventional detectors suffer from performance degradation when dealing with long-tailed data due to a classification bias towards the majority head categories. In this paper, we contend that the learning bias originates from two factors:…

Computer Vision and Pattern Recognition · Computer Science 2023-08-07 Tianhao Qi , Hongtao Xie , Pandeng Li , Jiannan Ge , Yongdong Zhang

Generalized Zero-Shot Learning (GZSL) and Open-Set Recognition (OSR) are two mainstream settings that greatly extend conventional visual object recognition. However, the limitations of their problem settings are not negligible. The novel…

Computer Vision and Pattern Recognition · Computer Science 2023-02-10 Zhaonan Li , Hongfu Liu

Vision-Language Models (VLMs) have demonstrated impressive multimodal capabilities in learning joint representations of visual and textual data, making them powerful tools for tasks such as Compositional Zero-Shot Learning (CZSL). CZSL…

Computer Vision and Pattern Recognition · Computer Science 2025-07-25 Kyle Stein , Arash Mahyari , Guillermo Francia , Eman El-Sheikh

Supervised learning requires a sufficient training dataset which includes all label. However, there are cases that some class is not in the training data. Zero-Shot Learning (ZSL) is the task of predicting class that is not in the training…

Machine Learning · Computer Science 2020-07-02 Toshitaka Hayashi , Hamido Fujita

This paper presents a method of zero-shot learning (ZSL) which poses ZSL as the missing data problem, rather than the missing label problem. Specifically, most existing ZSL methods focus on learning mapping functions from the image feature…

Computer Vision and Pattern Recognition · Computer Science 2021-03-09 Bo Zhao , Botong Wu , Tianfu Wu , Yizhou Wang

One of the recent developments in deep learning is generalized zero-shot learning (GZSL), which aims to recognize objects from both seen and unseen classes, when only the labeled examples from seen classes are provided. Over the past couple…

Artificial Intelligence · Computer Science 2022-07-26 Sathvik Bhaskarpandit , Priyanka Gupta , Manik Gupta

Zero-shot learning (ZSL) aims to recognize unseen objects using disjoint seen objects via sharing attributes. The generalization performance of ZSL is governed by the attributes, which transfer semantic information from seen classes to…

Computer Vision and Pattern Recognition · Computer Science 2019-07-23 Xiaofeng Xu , Ivor W. Tsang , Chuancai Liu

Real-world data often follow a long-tailed distribution with a high imbalance in the number of samples between classes. The problem with training from imbalanced data is that some background features, common to all classes, can be…

Computer Vision and Pattern Recognition · Computer Science 2024-06-05 Sanglee Park , Seung-won Hwang , Jungmin So

Large-scale vision-language models (VLMs), such as CLIP, have achieved remarkable success in zero-shot learning (ZSL) by leveraging large-scale visual-text pair datasets. However, these methods often lack interpretability, as they compute…

Computer Vision and Pattern Recognition · Computer Science 2025-07-01 Shiming Chen , Bowen Duan , Salman Khan , Fahad Shahbaz Khan

Long-tailed semi-supervised learning poses a significant challenge in training models with limited labeled data exhibiting a long-tailed label distribution. Current state-of-the-art LTSSL approaches heavily rely on high-quality…

Machine Learning · Computer Science 2024-10-10 Zi-Hao Zhou , Siyuan Fang , Zi-Jing Zhou , Tong Wei , Yuanyu Wan , Min-Ling Zhang

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

Computer Vision and Pattern Recognition · Computer Science 2019-12-04 Mohamed Elhoseiny , Mohamed Elfeki

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

Recent zero-shot learning (ZSL) approaches have integrated fine-grained analysis, i.e., fine-grained ZSL, to mitigate the commonly known seen/unseen domain bias and misaligned visual-semantics mapping problems, and have made profound…

Computer Vision and Pattern Recognition · Computer Science 2024-02-06 Jingcai Guo , Zhijie Rao , Zhi Chen , Jingren Zhou , Dacheng Tao