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Generalized Category Discovery (GCD) aims to recognize both known and novel categories from a set of unlabeled data, based on another dataset labeled with only known categories. Without considering differences between known and novel…

Computation and Language · Computer Science 2023-03-16 Wenbin An , Feng Tian , Qinghua Zheng , Wei Ding , QianYing Wang , Ping Chen

Generalized Class Discovery (GCD) plays a pivotal role in discerning both known and unknown categories from unlabeled datasets by harnessing the insights derived from a labeled set comprising recognized classes. A significant limitation in…

Computer Vision and Pattern Recognition · Computer Science 2024-08-27 Ziyun Li , Christoph Meinel , Haojin Yang

Deep clustering successfully provides more effective features than conventional ones and thus becomes an important technique in current unsupervised learning. However, most deep clustering methods ignore the vital positive and negative…

Computer Vision and Pattern Recognition · Computer Science 2021-03-10 Zhiyuan Dang , Cheng Deng , Xu Yang , Heng Huang

Labeling videos at scale is impractical. Consequently, self-supervised visual representation learning is key for efficient video analysis. Recent success in learning image representations suggests contrastive learning is a promising…

Computer Vision and Pattern Recognition · Computer Science 2021-05-03 Nishant Rai , Ehsan Adeli , Kuan-Hui Lee , Adrien Gaidon , Juan Carlos Niebles

Recently, contrastive self-supervised learning has become a key component for learning visual representations across many computer vision tasks and benchmarks. However, contrastive learning in the context of domain adaptation remains…

Computer Vision and Pattern Recognition · Computer Science 2021-06-25 Mamatha Thota , Georgios Leontidis

Generalized Category Discovery (GCD) challenges methods to identify known and novel classes using partially labeled data, mirroring human category learning. Unlike prior GCD methods, which operate within a single modality and require…

Computer Vision and Pattern Recognition · Computer Science 2026-04-17 Jordan Shipard , Arnold Wiliem , Kien Nguyen Thanh , Wei Xiang , Clinton Fookes

Traditional deep learning algorithms often fail to generalize when they are tested outside of the domain of the training data. The issue can be mitigated by using unlabeled data from the target domain at training time, but because data…

Computer Vision and Pattern Recognition · Computer Science 2023-02-03 Thomas Duboudin , Emmanuel Dellandréa , Corentin Abgrall , Gilles Hénaff , Liming Chen

In this paper, we propose the Generalized Parametric Contrastive Learning (GPaCo/PaCo) which works well on both imbalanced and balanced data. Based on theoretical analysis, we observe that supervised contrastive loss tends to bias…

Computer Vision and Pattern Recognition · Computer Science 2023-05-30 Jiequan Cui , Zhisheng Zhong , Zhuotao Tian , Shu Liu , Bei Yu , Jiaya Jia

Deep neural networks have demonstrated remarkable advancements in various fields using large, well-annotated datasets. However, real-world data often exhibit long-tailed distributions and label noise, significantly degrading generalization…

Computer Vision and Pattern Recognition · Computer Science 2024-07-25 Jae Soon Baik , In Young Yoon , Kun Hoon Kim , Jun Won Choi

Distribution shifts between training and testing samples frequently occur in practice and impede model generalization performance. This crucial challenge thereby motivates studies on domain generalization (DG), which aim to predict the…

Computer Vision and Pattern Recognition · Computer Science 2025-10-21 Tianxin Wei , Yifan Chen , Xinrui He , Wenxuan Bao , Jingrui He

Generalized Category Discovery is a significant and complex task that aims to identify both known and undefined novel categories from a set of unlabeled data, leveraging another labeled dataset containing only known categories. The primary…

Machine Learning · Computer Science 2024-12-18 Wenbin An , Haonan Lin , Jiahao Nie , Feng Tian , Wenkai Shi , Yaqiang Wu , Qianying Wang , Ping Chen

Domain generalization achieves fault diagnosis on unseen modes. In process industrial systems, fault samples are limited, and it is quite common that the available fault data are from a single mode. Extracting domain-invariant features from…

Machine Learning · Computer Science 2025-02-10 Guangqiang Li , M. Amine Atoui , Xiangshun Li

In this study, we tackle Generalized Category Discovery (GCD) via a Relational Retrieval perspective, explicitly coupling labeled and unlabeled data through bidirectional knowledge transfer. While existing methods treat these sources…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Yulin Xu , Chunqi Guo , Yuanzhen Shuai , Jianyuan Ni

Long-tailed distributions frequently emerge in real-world data, where a large number of minority categories contain a limited number of samples. Such imbalance issue considerably impairs the performance of standard supervised learning…

Machine Learning · Computer Science 2024-03-15 Chaoqun Du , Yulin Wang , Shiji Song , Gao Huang

Many existing unsupervised domain adaptation (UDA) methods primarily focus on covariate shift, limiting their effectiveness in imbalanced domain adaptation (IDA) where both covariate shift and label shift coexist. Recent IDA methods have…

Computer Vision and Pattern Recognition · Computer Science 2024-12-31 Xiaona Sun , Zhenyu Wu , Zhiqiang Zhan , Yang Ji

Identifying influential nodes in complex networks is a fundamental task in network analysis with wide-ranging applications across domains. While deep learning has advanced node influence detection, existing supervised approaches remain…

Social and Information Networks · Computer Science 2025-09-04 Yanmei Hu , Yihang Wu , Bing Sun , Xue Yue , Biao Cai , Xiangtao Li , Yang Chen

Despite commendable achievements made by existing work, prevailing multimodal sarcasm detection studies rely more on textual content over visual information. It unavoidably induces spurious correlations between textual words and labels,…

Computation and Language · Computer Science 2023-12-20 Mengzhao Jia , Can Xie , Liqiang Jing

In time series anomaly detection (TSAD), the scarcity of labeled data poses a challenge to the development of accurate models. Unsupervised domain adaptation (UDA) offers a solution by leveraging labeled data from a related domain to detect…

Machine Learning · Computer Science 2025-09-09 Zahra Zamanzadeh Darban , Yiyuan Yang , Geoffrey I. Webb , Charu C. Aggarwal , Qingsong Wen , Shirui Pan , Mahsa Salehi

Inspired by the problem of improving classification accuracy on rare or hard subsets of a population, there has been recent interest in models of learning where the goal is to generalize to a collection of distributions, each representing a…

Machine Learning · Computer Science 2023-06-06 Nick Rittler , Kamalika Chaudhuri

Due to the advantages of leveraging unlabeled data and learning meaningful representations, semi-supervised learning and contrastive learning have been progressively combined to achieve better performances in popular applications with few…

Computer Vision and Pattern Recognition · Computer Science 2023-12-27 Bowen Tao , Lan Li , Xin-Chun Li , De-Chuan Zhan
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