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Estimating intrinsic dimensionality of data is a classic problem in pattern recognition and statistics. Principal Component Analysis (PCA) is a powerful tool in discovering dimensionality of data sets with a linear structure; it, however,…

Computer Vision and Pattern Recognition · Computer Science 2010-02-11 Mingyu Fan , Nannan Gu , Hong Qiao , Bo Zhang

Standard supervised learning setting assumes that training data and test data come from the same distribution (domain). Domain generalization (DG) methods try to learn a model that when trained on data from multiple domains, would…

Computer Vision and Pattern Recognition · Computer Science 2020-08-18 Udit Maniyar , Joseph K J , Aniket Anand Deshmukh , Urun Dogan , Vineeth N Balasubramanian

Graph transformation that predicts graph transition from one mode to another is an important and common problem. Despite much progress in developing advanced graph transformation techniques in recent years, the fundamental assumption…

Machine Learning · Computer Science 2023-05-25 Shiyu Wang , Guangji Bai , Qingyang Zhu , Zhaohui Qin , Liang Zhao

Change detection has essential significance for the region's development, in which pseudo-changes between bitemporal images induced by imaging environmental factors are key challenges. Existing transformation-based methods regard…

Computer Vision and Pattern Recognition · Computer Science 2025-04-02 Qi Zang , Shuang Wang , Dong Zhao , Dou Quan , Yang Hu , Licheng Jiao

Graph neural networks (GNNs) have achieved remarkable success in various domains, yet they often struggle with domain adaptation due to significant structural distribution shifts and insufficient exploration of transferable patterns. One of…

Machine Learning · Computer Science 2025-10-16 Haoyu Zhang , Yuxuan Cheng , Wenqi Fan , Yulong Chen , Yifan Zhang

Robust principal component analysis (RPCA) decomposes an observation matrix into low-rank background and sparse object components. This capability has enabled its application in tasks ranging from image restoration to segmentation. However,…

Computer Vision and Pattern Recognition · Computer Science 2025-08-07 Fengyi Wu , Yimian Dai , Tianfang Zhang , Yixuan Ding , Jian Yang , Ming-Ming Cheng , Zhenming Peng

In order to classify the nonlinear feature with linear classifier and improve the classification accuracy, a deep learning network named kernel principal component analysis network (KPCANet) is proposed. First, mapping the data into higher…

Machine Learning · Computer Science 2015-12-22 Dan Wu , Jiasong Wu , Rui Zeng , Longyu Jiang , Lotfi Senhadji , Huazhong Shu

In this work, we propose to tackle the problem of domain generalization in the context of \textit{insufficient samples}. Instead of extracting latent feature embeddings based on deterministic models, we propose to learn a domain-invariant…

Machine Learning · Computer Science 2024-02-12 Kecheng Chen , Elena Gal , Hong Yan , Haoliang Li

Domain generalization in 3D segmentation is a critical challenge in deploying models to unseen environments. Current methods mitigate the domain shift by augmenting the data distribution of point clouds. However, the model learns global…

Computer Vision and Pattern Recognition · Computer Science 2025-08-18 Pei He , Lingling Li , Licheng Jiao , Ronghua Shang , Fang Liu , Shuang Wang , Xu Liu , Wenping Ma

This paper develops a method to detect model structural changes by applying a Corrected Kernel Principal Component Analysis (CKPCA) to construct the so-called central distribution deviation subspaces. This approach can efficiently identify…

Methodology · Statistics 2023-07-18 Luoyao Yu , Lixing Zhu , Ruoqing Zhu , Xuehu Zhu

Neural networks-based learning of the distribution of non-dispatchable renewable electricity generation from sources such as photovoltaics (PV) and wind as well as load demands has recently gained attention. Normalizing flow density models…

Machine Learning · Computer Science 2022-01-10 Eike Cramer , Alexander Mitsos , Raul Tempone , Manuel Dahmen

Human visual perception can easily generalize to out-of-distributed visual data, which is far beyond the capability of modern machine learning models. Domain generalization (DG) aims to close this gap, with existing DG methods mainly…

Computer Vision and Pattern Recognition · Computer Science 2023-01-30 Bo Li , Yifei Shen , Jingkang Yang , Yezhen Wang , Jiawei Ren , Tong Che , Jun Zhang , Ziwei Liu

Domain generalization (DG) tends to alleviate the poor generalization capability of deep neural networks by learning model with multiple source domains. A classical solution to DG is domain augmentation, the common belief of which is that…

Computer Vision and Pattern Recognition · Computer Science 2023-03-24 Fangrui Lv , Jian Liang , Shuang Li , Jinming Zhang , Di Liu

In many modern computer application problems, the classification of image data plays an important role. Among many different supervised machine learning models, convolutional neural networks (CNNs) and linear discriminant analysis (LDA) as…

Computer Vision and Pattern Recognition · Computer Science 2024-11-01 Axel Klawonn , Martin Lanser , Janine Weber

To address distribution shifts between training and test data, domain generalization (DG) leverages multiple source domains to learn a model that generalizes well to unseen domains. However, existing DG methods often overfit to the source…

Machine Learning · Computer Science 2026-04-28 Danni Peng , Sinno Jialin Pan

Domain generalization (DG) aims to learn a model on several source domains, hoping that the model can generalize well to unseen target domains. The distribution shift between domains contains the covariate shift and conditional shift, both…

Computer Vision and Pattern Recognition · Computer Science 2022-09-20 Jianxin Lin , Yongqiang Tang , Junping Wang , Wensheng Zhang

Domain generalization (DG), aiming to make models work on unseen domains, is a surefire way toward general artificial intelligence. Limited by the scale and diversity of current DG datasets, it is difficult for existing methods to scale to…

Computer Vision and Pattern Recognition · Computer Science 2022-09-30 Hongjing Niu , Hanting Li , Feng Zhao , Bin Li

Deep learning techniques often perform poorly in the presence of domain shift, where the test data follows a different distribution than the training data. The most practically desirable approach to address this issue is Single Domain…

Computer Vision and Pattern Recognition · Computer Science 2023-07-13 WeiQin Chuah , Ruwan Tennakoon , Reza Hoseinnezhad , David Suter , Alireza Bab-Hadiashar

Neural networks are known to produce poor uncertainty estimations, and a variety of approaches have been proposed to remedy this issue. This includes deep ensemble, a simple and effective method that achieves state-of-the-art results for…

Machine Learning · Computer Science 2022-10-13 Yuesong Shen , Daniel Cremers

Though deep neural networks have achieved impressive success on various vision tasks, obvious performance degradation still exists when models are tested in out-of-distribution scenarios. In addressing this limitation, we ponder that the…

Computer Vision and Pattern Recognition · Computer Science 2023-01-18 Xiaotong Li , Zixuan Hu , Jun Liu , Yixiao Ge , Yongxing Dai , Ling-Yu Duan