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Arbitrary style transfer (AST) and domain generalization (DG) are important yet challenging visual learning tasks, which can be cast as a feature distribution matching problem. With the assumption of Gaussian feature distribution,…

Computer Vision and Pattern Recognition · Computer Science 2022-03-28 Yabin Zhang , Minghan Li , Ruihuang Li , Kui Jia , Lei Zhang

Maximum mean discrepancy (MMD) has been widely adopted in domain adaptation to measure the discrepancy between the source and target domain distributions. Many existing domain adaptation approaches are based on the joint MMD, which is…

Machine Learning · Computer Science 2020-04-13 Wen Zhang , Dongrui Wu

We introduce Hindsight-Guided Momentum (HGM), a first-order optimization algorithm that adaptively scales learning rates based on the directional consistency of recent updates. Traditional adaptive methods, such as Adam or RMSprop , adapt…

Optimization and Control · Mathematics 2025-07-01 Krisanu Sarkar

In the presence of large sets of labeled data, Deep Learning (DL) has accomplished extraordinary triumphs in the avenue of computer vision, particularly in object classification and recognition tasks. However, DL cannot always perform well…

Computer Vision and Pattern Recognition · Computer Science 2019-01-03 Mohammad Mahfujur Rahman , Clinton Fookes , Mahsa Baktashmotlagh , Sridha Sridharan

A novel design procedure for practical hierarchical distribution matchers (HiDMs) in probabilistically shaped constellation systems is presented. The proposed approach enables the determination of optimal parameters for any target…

Signal Processing · Electrical Eng. & Systems 2026-01-26 Pantea Nadimi Goki , Luca Potì

Modern deep neural networks (DNNs) are highly accurate on many recognition tasks for overhead (e.g., satellite) imagery. However, visual domain shifts (e.g., statistical changes due to geography, sensor, or atmospheric conditions) remain a…

Computer Vision and Pattern Recognition · Computer Science 2023-08-15 Can Yaras , Kaleb Kassaw , Bohao Huang , Kyle Bradbury , Jordan M. Malof

We present a novel algorithm for learning the parameters of hidden Markov models (HMMs) in a geometric setting where the observations take values in Riemannian manifolds. In particular, we elevate a recent second-order method of moments…

Machine Learning · Computer Science 2023-02-16 Berlin Chen , Cyrus Mostajeran , Salem Said

Recently, learning-based stereo matching methods have achieved great improvement in public benchmarks, where soft argmin and smooth L1 loss play a core contribution to their success. However, in unsupervised domain adaptation scenarios, we…

Computer Vision and Pattern Recognition · Computer Science 2025-05-01 Zhelun Shen , Zhuo Li , Chenming Wu , Zhibo Rao , Lina Liu , Yuchao Dai , Liangjun Zhang

Unsupervised domain adaptation addresses the problem of transferring knowledge from a well-labeled source domain to an unlabeled target domain where the two domains have distinctive data distributions. Thus, the essence of domain adaptation…

Computer Vision and Pattern Recognition · Computer Science 2020-04-28 Li Jingjing , Chen Erpeng , Ding Zhengming , Zhu Lei , Lu Ke , Shen Heng Tao

We develop a new approach for estimating the expected values of nonlinear functions applied to multivariate random variables with arbitrary distributions. Rather than assuming a particular distribution, we assume that we are only given the…

Numerical Analysis · Mathematics 2020-06-25 Deanna Easley , Tyrus Berry

When the training and test data are from different distributions, domain adaptation is needed to reduce dataset bias to improve the model's generalization ability. Since it is difficult to directly match the cross-domain joint…

Machine Learning · Computer Science 2020-07-28 Chaohui Yu , Jindong Wang , Chang Liu , Tao Qin , Renjun Xu , Wenjie Feng , Yiqiang Chen , Tie-Yan Liu

Deep learning has shown remarkable progress in medical image semantic segmentation, yet its success heavily depends on large-scale expert annotations and consistent data distributions. In practice, annotations are scarce, and images are…

Computer Vision and Pattern Recognition · Computer Science 2026-01-26 Ba-Thinh Lam , Thanh-Huy Nguyen , Hoang-Thien Nguyen , Quang-Khai Bui-Tran , Nguyen Lan Vi Vu , Phat K. Huynh , Ulas Bagci , Min Xu

Domain shift remains a key challenge in deploying machine learning models to the real world. Unsupervised domain adaptation (UDA) aims to address this by minimising domain discrepancy during training, but the discrepancy estimates suffer…

Machine Learning · Computer Science 2026-05-07 Andrea Napoli , Paul White

This paper investigates the distributed stochastic nonconvex and nonsmooth composite optimization problem. Existing stochastic typically rely on uniform step size strictly bounded by global network parameters, such as the maximum node…

Optimization and Control · Mathematics 2026-03-10 Yangming Zhang , Yongyang Xiong , Jinming Xu , Keyou You , Yang Shi

Multi-source Domain Adaptation (MDA) aims to transfer knowledge from multiple labeled source domains to an unlabeled target domain. Nevertheless, traditional methods primarily focus on achieving inter-domain alignment through sample-level…

Computer Vision and Pattern Recognition · Computer Science 2025-04-14 Yang Yuxiang , Zeng Xinyi , Zeng Pinxian , Zu Chen , Yan Binyu , Zhou Jiliu , Wang Yan

The widespread use of multisensor technology and the emergence of big datasets have created the need to develop tools to reduce, approximate, and classify large and multimodal data such as higher-order tensors. While early approaches…

Numerical Analysis · Computer Science 2018-07-03 Alp Ozdemir , Ali Zare , Mark A. Iwen , Selin Aviyente

In this study, we focus on the unsupervised domain adaptation problem where an approximate inference model is to be learned from a labeled data domain and expected to generalize well to an unlabeled data domain. The success of unsupervised…

Computer Vision and Pattern Recognition · Computer Science 2020-08-11 Jing Wang , Jiahong Chen , Jianzhe Lin , Leonid Sigal , Clarence W. de Silva

Domain adaptation aims to transfer knowledge of labeled instances obtained from a source domain to a target domain to fill the gap between the domains. Most domain adaptation methods assume that the source and target domains have the same…

Machine Learning · Computer Science 2022-09-13 Toshimitsu Aritake , Hideitsu Hino

Leveraging Large Language Models (LLMs) for recommendation has demonstrated notable success in various domains, showcasing their potential for open-domain recommendation. A key challenge to advancing open-domain recommendation lies in…

Information Retrieval · Computer Science 2025-07-29 Honghui Bao , Wenjie Wang , Xinyu Lin , Fengbin Zhu , Teng Sun , Fuli Feng , Tat-Seng Chua

This paper rethinks image histogram matching (HM) and proposes a differentiable and parametric HM preprocessing for a downstream classifier. Convolutional neural networks have demonstrated remarkable achievements in classification tasks.…

Computer Vision and Pattern Recognition · Computer Science 2025-06-03 Rikuto Otsuka , Yuho Shoji , Yuka Ogino , Takahiro Toizumi , Atsushi Ito