English
Related papers

Related papers: Automatically Discovering Novel Visual Categories …

200 papers

Novel Class Discovery (NCD) is a growing field where we are given during training a labeled set of known classes and an unlabeled set of different classes that must be discovered. In recent years, many methods have been proposed to address…

In this paper, we address Novel Class Discovery (NCD), the task of unveiling new classes in a set of unlabeled samples given a labeled dataset with known classes. We exploit the peculiarities of NCD to build a new framework, named…

Computer Vision and Pattern Recognition · Computer Science 2021-06-22 Zhun Zhong , Enrico Fini , Subhankar Roy , Zhiming Luo , Elisa Ricci , Nicu Sebe

Novel Class Discovery (NCD) involves identifying new categories within unlabeled data by utilizing knowledge acquired from previously established categories. However, existing NCD methods often struggle to maintain a balance between the…

Machine Learning · Computer Science 2024-07-26 Yue Hou , Xueyuan Chen , He Zhu , Romei Liu , Bowen Shi , Jiaheng Liu , Junran Wu , Ke Xu

We study the new task of class-incremental Novel Class Discovery (class-iNCD), which refers to the problem of discovering novel categories in an unlabelled data set by leveraging a pre-trained model that has been trained on a labelled data…

Computer Vision and Pattern Recognition · Computer Science 2022-07-19 Subhankar Roy , Mingxuan Liu , Zhun Zhong , Nicu Sebe , Elisa Ricci

The problem of Novel Class Discovery (NCD) consists in extracting knowledge from a labeled set of known classes to accurately partition an unlabeled set of novel classes. While NCD has recently received a lot of attention from the…

Machine Learning · Computer Science 2024-06-04 Colin Troisemaine , Alexandre Reiffers-Masson , Stéphane Gosselin , Vincent Lemaire , Sandrine Vaton

We tackle the generalized category discovery (GCD) problem, which aims to discover novel classes in unlabeled datasets by leveraging the knowledge of known classes. Previous works utilize the known class knowledge through shared…

Computer Vision and Pattern Recognition · Computer Science 2025-02-07 Chuyu Zhang , Peiyan Gu , Xueyang Yu , Xuming He

Continual Novel Class Discovery (CNCD) aims to continually discover novel classes without labels while maintaining the recognition capability for previously learned classes. The main challenges faced by CNCD include the feature-discrepancy…

Computer Vision and Pattern Recognition · Computer Science 2024-05-13 Yifan Yu , Shaokun Wang , Yuhang He , Junzhe Chen , Yihong Gong

Novel Categories Discovery (NCD) aims to cluster novel data based on the class semantics of known classes using the open-world partial class space annotated dataset. As an alternative to the traditional pseudo-labeling-based approaches, we…

Computer Vision and Pattern Recognition · Computer Science 2023-12-19 Zahid Hasan , Abu Zaher Md Faridee , Masud Ahmed , Sanjay Purushotham , Heesung Kwon , Hyungtae Lee , Nirmalya Roy

Existing deep learning models have achieved promising performance in recognizing skin diseases from dermoscopic images. However, these models can only recognize samples from predefined categories, when they are deployed in the clinic, data…

Computer Vision and Pattern Recognition · Computer Science 2023-09-29 Wei Feng , Lie Ju , Lin Wang , Kaimin Song , Zongyuan Ge

In novel class discovery (NCD), we are given labeled data from seen classes and unlabeled data from unseen classes, and we train clustering models for the unseen classes. However, the implicit assumptions behind NCD are still unclear. In…

Machine Learning · Computer Science 2022-09-09 Haoang Chi , Feng Liu , Bo Han , Wenjing Yang , Long Lan , Tongliang Liu , Gang Niu , Mingyuan Zhou , Masashi Sugiyama

Novel Class Discovery (NCD) is the problem of trying to discover novel classes in an unlabeled set, given a labeled set of different but related classes. The majority of NCD methods proposed so far only deal with image data, despite tabular…

Novel Class Discovery aims to utilise prior knowledge of known classes to classify and discover unknown classes from unlabelled data. Existing NCD methods for images primarily rely on visual features, which suffer from limitations such as…

Computer Vision and Pattern Recognition · Computer Science 2025-12-12 Yuetong Su , Baoguo Wei , Xinyu Wang , Xu Li , Lixin Li

In Novel Class Discovery (NCD), the goal is to find new classes in an unlabeled set given a labeled set of known but different classes. While NCD has recently gained attention from the community, no framework has yet been proposed for…

Novel Categories Discovery (NCD) facilitates learning from a partially annotated label space and enables deep learning (DL) models to operate in an open-world setting by identifying and differentiating instances of novel classes based on…

Computer Vision and Pattern Recognition · Computer Science 2023-04-18 Zahid Hasan , Masud Ahmed , Abu Zaher Md Faridee , Sanjay Purushotham , Heesung Kwon , Hyungtae Lee , Nirmalya Roy

Traditional semi-supervised learning tasks assume that both labeled and unlabeled data follow the same class distribution, but the realistic open-world scenarios are of more complexity with unknown novel classes mixed in the unlabeled set.…

Computer Vision and Pattern Recognition · Computer Science 2023-05-23 Jiaming Liu , Yangqiming Wang , Tongze Zhang , Yulu Fan , Qinli Yang , Junming Shao

The task of Novel Class Discovery (NCD) in semantic segmentation entails training a model able to accurately segment unlabelled (novel) classes, relying on the available supervision from annotated (base) classes. Although extensively…

Computer Vision and Pattern Recognition · Computer Science 2024-08-21 Luigi Riz , Cristiano Saltori , Yiming Wang , Elisa Ricci , Fabio Poiesi

Generalized category discovery (GCD) is a pragmatic but underexplored problem, which requires models to automatically cluster and discover novel categories by leveraging the labeled samples from old classes. The challenge is that unlabeled…

Machine Learning · Computer Science 2025-04-08 Shijie Ma , Fei Zhu , Xu-Yao Zhang , Cheng-Lin Liu

Novel class discovery (NCD) for semantic segmentation is the task of learning a model that can segment unlabelled (novel) classes using only the supervision from labelled (base) classes. This problem has recently been pioneered for 2D image…

Computer Vision and Pattern Recognition · Computer Science 2023-03-22 Luigi Riz , Cristiano Saltori , Elisa Ricci , Fabio Poiesi

Novel Class Discovery (NCD) is a learning paradigm, where a machine learning model is tasked to semantically group instances from unlabeled data, by utilizing labeled instances from a disjoint set of classes. In this work, we first…

Computer Vision and Pattern Recognition · Computer Science 2022-04-25 K J Joseph , Sujoy Paul , Gaurav Aggarwal , Soma Biswas , Piyush Rai , Kai Han , Vineeth N Balasubramanian

In this paper, we address the problem of novel class discovery (NCD), which aims to cluster novel classes by leveraging knowledge from disjoint known classes. While recent advances have made significant progress in this area, existing NCD…

Computer Vision and Pattern Recognition · Computer Science 2025-07-17 Xinhang Wan , Jiyuan Liu , Qian Qu , Suyuan Liu , Chuyu Zhang , Fangdi Wang , Xinwang Liu , En Zhu , Kunlun He
‹ Prev 1 2 3 10 Next ›