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Deep learning models have the ability to extract rich knowledge from large-scale datasets. However, the sharing of data has become increasingly challenging due to concerns regarding data copyright and privacy. Consequently, this hampers the…

Computer Vision and Pattern Recognition · Computer Science 2024-01-30 Bowen Tang , Long Yan , Jing Zhang , Qian Yu , Lu Sheng , Dong Xu

While there has been a number of studies on Zero-Shot Learning (ZSL) for 2D images, its application to 3D data is still recent and scarce, with just a few methods limited to classification. We present the first generative approach for both…

Computer Vision and Pattern Recognition · Computer Science 2023-01-20 Björn Michele , Alexandre Boulch , Gilles Puy , Maxime Bucher , Renaud Marlet

Fine-grained image retrieval via hand-drawn sketches or textual descriptions remains a critical challenge due to inherent modality gaps. While hand-drawn sketches capture complex structural contours, they lack color and texture, which text…

Computer Vision and Pattern Recognition · Computer Science 2026-04-20 Siyuan Wang , Hanchen Gao , Guangming Zhu , Jiang Lu , Yiyue Ma , Tianci Wu , Jincai Huang , Liang Zhang

Generalised zero-shot learning (GZSL) is a classification problem where the learning stage relies on a set of seen visual classes and the inference stage aims to identify both the seen visual classes and a new set of unseen visual classes.…

Computer Vision and Pattern Recognition · Computer Science 2019-08-15 Rafael Felix , Ben Harwood , Michele Sasdelli , Gustavo Carneiro

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

Composed image retrieval attempts to retrieve an image of interest from gallery images through a composed query of a reference image and its corresponding modified text. It has recently attracted attention due to the collaboration of…

Computer Vision and Pattern Recognition · Computer Science 2024-03-26 Shitong Sun , Fanghua Ye , Shaogang Gong

Conventional existing retrieval methods in remote sensing (RS) are often based on a uni-modal data retrieval framework. In this work, we propose a novel inter-modal triplet-based zero-shot retrieval scheme utilizing a sketch-based…

Computer Vision and Pattern Recognition · Computer Science 2021-04-22 Ushasi Chaudhuri , Biplab Banerjee , Avik Bhattacharya , Mihai Datcu

The key challenge of zero-shot learning (ZSL) is how to infer the latent semantic knowledge between visual and attribute features on seen classes, and thus achieving a desirable knowledge transfer to unseen classes. Prior works either…

Computer Vision and Pattern Recognition · Computer Science 2022-04-25 Shiming Chen , Ziming Hong , Guo-Sen Xie , Wenhan Yang , Qinmu Peng , Kai Wang , Jian Zhao , Xinge You

Compositional image retrieval (CIR) is a multimodal learning task where a model combines a query image with a user-provided text modification to retrieve a target image. CIR finds applications in a variety of domains including product…

In this paper, we study learning semantic representations for million-scale free-hand sketches. This is highly challenging due to the domain-unique traits of sketches, e.g., diverse, sparse, abstract, noisy. We propose a dual-branch CNNRNN…

Computer Vision and Pattern Recognition · Computer Science 2020-07-09 Peng Xu , Yongye Huang , Tongtong Yuan , Tao Xiang , Timothy M. Hospedales , Yi-Zhe Song , Liang Wang

In some of object recognition problems, labeled data may not be available for all categories. Zero-shot learning utilizes auxiliary information (also called signatures) describing each category in order to find a classifier that can…

Computer Vision and Pattern Recognition · Computer Science 2016-06-01 Seyed Mohsen Shojaee , Mahdieh Soleymani Baghshah

Zero-shot learning (ZSL) models rely on learning a joint embedding space where both textual/semantic description of object classes and visual representation of object images can be projected to for nearest neighbour search. Despite the…

Computer Vision and Pattern Recognition · Computer Science 2019-07-22 Li Zhang , Tao Xiang , Shaogang Gong

Zero-shot learning (ZSL) aims to transfer knowledge from seen classes to semantically related unseen classes, which are absent during training. The promising strategies for ZSL are to synthesize visual features of unseen classes conditioned…

Artificial Intelligence · Computer Science 2021-12-30 Yun Li , Zhe Liu , Lina Yao , Xiaojun Chang

Generative Zero-Shot Learning (ZSL) methods synthesize class-related features based on predefined class semantic prototypes, showcasing superior performance. However, this feature generation paradigm falls short of providing interpretable…

Computer Vision and Pattern Recognition · Computer Science 2024-12-30 Dingjie Fu , Wenjin Hou , Shiming Chen , Shuhuang Chen , Xinge You , Salman Khan , Fahad Shahbaz Khan

Zero-shot learning (ZSL) makes object recognition in images possible in absence of visual training data for a part of the classes from a dataset. When the number of classes is large, classes are usually represented by semantic class…

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

The goal of Scene-level Sketch-Based Image Retrieval is to retrieve natural images matching the overall semantics and spatial layout of a free-hand sketch. Unlike prior work focused on architectural augmentations of retrieval models, we…

Computer Vision and Pattern Recognition · Computer Science 2025-09-09 Emil Demić , Luka Čehovin Zajc

Signal recognition is one of significant and challenging tasks in the signal processing and communications field. It is often a common situation that there's no training data accessible for some signal classes to perform a recognition task.…

Machine Learning · Computer Science 2021-05-12 Yihong Dong , Xiaohan Jiang , Huaji Zhou , Yun Lin , Qingjiang Shi

Zero-Shot Learning (ZSL), which aims at automatically recognizing unseen objects, is a promising learning paradigm to understand new real-world knowledge for machines continuously. Recently, the Knowledge Graph (KG) has been proven as an…

Computer Vision and Pattern Recognition · Computer Science 2023-12-12 Likang Wu , Zhi Li , Hongke Zhao , Zhefeng Wang , Qi Liu , Baoxing Huai , Nicholas Jing Yuan , Enhong Chen

Transductive Zero-shot learning (ZSL) targets to recognize the unseen categories by aligning the visual and semantic information in a joint embedding space. There exist four kinds of domain biases in Transductive ZSL, i.e., visual bias and…

Computer Vision and Pattern Recognition · Computer Science 2020-06-02 Hantao Yao , Shaobo Min , Yongdong Zhang , Changsheng Xu

Low-light image enhancement remains a challenging task, particularly in the absence of paired training data. In this study, we present LucentVisionNet, a novel zero-shot learning framework that addresses the limitations of traditional and…

Image and Video Processing · Electrical Eng. & Systems 2025-06-25 Muhammad Azeem Aslam , Hassan Khalid , Nisar Ahmed