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Although unsupervised domain adaptation methods have been widely adopted across several computer vision tasks, it is more desirable if we can exploit a few labeled data from new domains encountered in a real application. The novel setting…

Computer Vision and Pattern Recognition · Computer Science 2020-07-21 Taekyung Kim , Changick Kim

Multimodal Sentiment Analysis (MSA) integrates complementary features from text, video, and audio for robust emotion understanding in human interactions. However, models suffer from severe data scarcity and high annotation costs, severely…

Computer Vision and Pattern Recognition · Computer Science 2026-04-03 Hongyu Zhu , Lin Chen , Xin Jin , Mingsheng Shang

Medical Foundation Models (MFMs), trained on large-scale datasets, have demonstrated superior performance across various tasks. However, these models still struggle with domain gaps in practical applications. Specifically, even after…

Computer Vision and Pattern Recognition · Computer Science 2025-03-04 Jia-Xuan Jiang , Wenhui Lei , Yifeng Wu , Hongtao Wu , Furong Li , Yining Xie , Xiaofan Zhang , Zhong Wang

Semantic segmentation of remote sensing (RS) images is a challenging yet essential task with broad applications. While deep learning, particularly supervised learning with large-scale labeled datasets, has significantly advanced this field,…

Computer Vision and Pattern Recognition · Computer Science 2024-12-02 Bin Wang , Fei Deng , Shuang Wang , Wen Luo , Zhixuan Zhang , Peifan Jiang

Unsupervised Domain Adaptation (UDA) aims to harness labeled source data to train models for unlabeled target data. Despite extensive research in domains like computer vision and natural language processing, UDA remains underexplored for…

Machine Learning · Computer Science 2025-07-29 Hassan Ismail Fawaz , Ganesh Del Grosso , Tanguy Kerdoncuff , Aurelie Boisbunon , Illyyne Saffar

Motivated by single-particle cryo-electron microscopy, multi-reference alignment (MRA) models the task of recovering an unknown signal from multiple noisy observations corrupted by random rotations. The standard approach,…

Signal Processing · Electrical Eng. & Systems 2026-01-09 Shay Kreymer , Amnon Balanov , Tamir Bendory

Unsupervised domain adaptation has increasingly gained interest in medical image computing, aiming to tackle the performance degradation of deep neural networks when being deployed to unseen data with heterogeneous characteristics. In this…

Image and Video Processing · Electrical Eng. & Systems 2020-02-07 Cheng Chen , Qi Dou , Hao Chen , Jing Qin , Pheng Ann Heng

Unsupervised Domain Adaptation (UDA) endeavors to adjust models trained on a source domain to perform well on a target domain without requiring additional annotations. In the context of domain adaptive semantic segmentation, which tackles…

Computer Vision and Pattern Recognition · Computer Science 2024-03-25 Wenlve Zhou , Zhiheng Zhou , Tianlei Wang , Delu Zeng

Unsupervised domain adaptation (UDA) aims to align the labelled source distribution with the unlabelled target distribution to obtain domain-invariant predictive models. Since cross-modality medical data exhibit significant intra and…

Computer Vision and Pattern Recognition · Computer Science 2024-02-26 Fengming Lin , Yan Xia , Michael MacRaild , Yash Deo , Haoran Dou , Qiongyao Liu , Kun Wu , Nishant Ravikumar , Alejandro F. Frangi

Recently, an intriguing research trend for automatic target recognition (ATR) from synthetic aperture radar (SAR) imagery has arisen: using simulated data to train ATR models is a feasible solution to the issue of inadequate measured data.…

Computer Vision and Pattern Recognition · Computer Science 2024-11-08 Xinzheng Zhang , Hui Zhu , Hongqian Zhuang

Unsupervised domain adaptation for medical image segmentation remains a significant challenge due to substantial domain shifts across imaging modalities, such as CT and MRI. While recent vision-language representation learning methods have…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Lalit Maurya , Honghai Liu , Reyer Zwiggelaar

In this work, we present an approach for unsupervised domain adaptation (DA) with the constraint, that the labeled source data are not directly available, and instead only access to a classifier trained on the source data is provided. Our…

Deep learning based medical image diagnosis has shown great potential in clinical medicine. However, it often suffers two major difficulties in real-world applications: 1) only limited labels are available for model training, due to…

Computer Vision and Pattern Recognition · Computer Science 2020-08-26 Yifan Zhang , Ying Wei , Qingyao Wu , Peilin Zhao , Shuaicheng Niu , Junzhou Huang , Mingkui Tan

Data mining, particularly the analysis of multivariate time series data, plays a crucial role in extracting insights from complex systems and supporting informed decision-making across diverse domains. However, assessing the similarity of…

Machine Learning · Computer Science 2025-07-15 Franck Tonle , Henri Tonnang , Milliam Ndadji , Maurice Tchendji , Armand Nzeukou , Kennedy Senagi , Saliou Niassy

Domain adaptation has been widely explored by transferring the knowledge from a label-rich source domain to a related but unlabeled target domain. Most existing domain adaptation algorithms attend to adapting feature representations across…

Computer Vision and Pattern Recognition · Computer Science 2021-03-24 Shuang Li , Mixue Xie , Kaixiong Gong , Chi Harold Liu , Yulin Wang , Wei Li

Land cover maps are a pivotal element in a wide range of Earth Observation (EO) applications. However, annotating large datasets to develop supervised systems for remote sensing (RS) semantic segmentation is costly and time-consuming.…

Computer Vision and Pattern Recognition · Computer Science 2023-04-18 Valerio Marsocci , Nicolas Gonthier , Anatol Garioud , Simone Scardapane , Clément Mallet

Speech recognition systems are often highly domain dependent, a fact widely reported in the literature. However the concept of domain is complex and not bound to clear criteria. Hence it is often not evident if data should be considered to…

Computation and Language · Computer Science 2015-09-23 Mortaza Doulaty , Oscar Saz , Thomas Hain

Domain adaptation (DA) is transfer learning which aims to leverage labeled data in a related source domain to achieve informed knowledge transfer and help the classification of unlabeled data in a target domain. In this paper, we propose a…

Computer Vision and Pattern Recognition · Computer Science 2017-05-25 Lingkun Luo , Xiaofang Wang , Shiqiang Hu , Liming Chen

Unsupervised domain adaptive segmentation aims to improve the segmentation accuracy of models on target domains without relying on labeled data from those domains. This approach is crucial when labeled target domain data is scarce or…

Computer Vision and Pattern Recognition · Computer Science 2024-07-25 Mu Chen , Zhedong Zheng , Yi Yang

Although with progress in introducing auxiliary amortized inference models, learning discrete latent variable models is still challenging. In this paper, we show that the annoying difficulty of obtaining reliable stochastic gradients for…

Machine Learning · Statistics 2020-05-29 Zhijian Ou , Yunfu Song