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The assumption that training and testing samples are generated from the same distribution does not always hold for real-world machine-learning applications. The procedure of tackling this discrepancy between the training (source) and…

Machine Learning · Computer Science 2018-12-05 Debasmit Das , C. S. George Lee

Machine learning algorithms have achieved remarkable success across various disciplines, use cases and applications, under the prevailing assumption that training and test samples are drawn from the same distribution. Consequently, these…

Machine Learning · Computer Science 2024-11-07 Zehao Xiao , Cees G. M. Snoek

Due to the scarcity of annotated data and the substantial computational costs of model, conventional tuning methods in medical image segmentation face critical challenges. Current approaches to adapting pretrained models, including…

Computer Vision and Pattern Recognition · Computer Science 2025-12-05 Chenlin Xu , Lei Zhang , Lituan Wang , Xinyu Pu , Pengfei Ma , Guangwu Qian , Zizhou Wang , Yan Wang

Domain adaptation aims to learn models on a supervised source domain that perform well on an unsupervised target. Prior work has examined domain adaptation in the context of stationary domain shifts, i.e. static data sets. However, with…

Computer Vision and Pattern Recognition · Computer Science 2018-08-03 Sindi Shkodrani , Michael Hofmann , Efstratios Gavves

Deep neural networks have demonstrated impressive performance in various machine learning tasks. However, they are notoriously sensitive to changes in data distribution. Often, even a slight change in the distribution can lead to drastic…

Computer Vision and Pattern Recognition · Computer Science 2018-11-16 Alon Hazan , Yoel Shoshan , Daniel Khapun , Roy Aladjem , Vadim Ratner

Deep learning models perform best when tested on target (test) data domains whose distribution is similar to the set of source (train) domains. However, model generalization can be hindered when there is significant difference in the…

Computer Vision and Pattern Recognition · Computer Science 2020-08-19 Pulkit Khandelwal , Paul Yushkevich

Domain adaptation addresses the challenge of model performance degradation caused by domain gaps. In the typical setup for unsupervised domain adaptation, labeled data from a source domain and unlabeled data from a target domain are used to…

Computer Vision and Pattern Recognition · Computer Science 2025-05-16 Siqi Yin , Shaolei Liu , Manning Wang

In the context of change-point detection, addressed by Total Variation minimization strategies, an efficient on-the-fly algorithm has been designed leading to exact solutions for univariate data. In this contribution, an extension of such…

Machine Learning · Computer Science 2016-08-30 Jordan Frecon , Nelly Pustelnik , Patrice Abry , Laurent Condat

Test-time adaptation (TTA) is a technique used to reduce distribution gaps between the training and testing sets by leveraging unlabeled test data during inference. In this work, we expand TTA to a more practical scenario, where the test…

Machine Learning · Computer Science 2023-03-06 Chenyan Wu , Yimu Pan , Yandong Li , James Z. Wang

We explore the zero-shot setting for day-night domain adaptation. The traditional domain adaptation setting is to train on one domain and adapt to the target domain by exploiting unlabeled data samples from the test set. As gathering…

Computer Vision and Pattern Recognition · Computer Science 2021-10-12 Attila Lengyel , Sourav Garg , Michael Milford , Jan C. van Gemert

We present a numerical method to efficiently solve optimization problems governed by large-scale nonlinear systems of equations, including discretized partial differential equations, using projection-based reduced-order models accelerated…

Optimization and Control · Mathematics 2023-04-26 Tianshu Wen , Matthew J. Zahr

Domain adaptation aims to leverage a label-rich domain (the source domain) to help model learning in a label-scarce domain (the target domain). Most domain adaptation methods require the co-existence of source and target domain samples to…

Computer Vision and Pattern Recognition · Computer Science 2021-03-29 Jiayi Tian , Jing Zhang , Wen Li , Dong Xu

Data streams in real-world industrial scenarios often contain transitional operating conditions that are uncovered during offline training, leading to significant distribution shifts. To bridge the gap between static offline models and…

Systems and Control · Electrical Eng. & Systems 2026-05-26 Hongshuo Zhao , Zeyi Liu , Xiao He

Semantic segmentation models based on convolutional neural networks (CNNs) have gained much attention in relation to remote sensing and have achieved remarkable performance for the extraction of buildings from high-resolution aerial images.…

Computer Vision and Pattern Recognition · Computer Science 2021-06-09 Younghwan Na , Jun Hee Kim , Kyungsu Lee , Juhum Park , Jae Youn Hwang , Jihwan P. Choi

Unsupervised Domain Adaptation (UDA) is a critical challenge in real-world vision systems, especially in resource-constrained environments like drones, where memory and computation are limited. Existing prompt-driven UDA methods typically…

Computer Vision and Pattern Recognition · Computer Science 2025-06-23 Yasir Ali Farrukh , Syed Wali , Irfan Khan , Nathaniel D. Bastian

It is common to observe performance degradation when transferring models trained on some (source) datasets to target testing data due to a domain gap between them. Existing methods for bridging this gap, such as domain adaptation (DA), may…

Computer Vision and Pattern Recognition · Computer Science 2024-05-28 Hyoungseob Park , Anjali Gupta , Alex Wong

In this paper, we propose a novel domain adaptation method for the source-free setting. In this setting, we cannot access source data during adaptation, while unlabeled target data and a model pretrained with source data are given. Due to…

Computer Vision and Pattern Recognition · Computer Science 2021-01-27 Masato Ishii , Masashi Sugiyama

The increasing adaptation of vision models across domains, such as satellite imagery and medical scans, has raised an emerging privacy risk: models may inadvertently retain and leak sensitive source-domain specific information in the target…

Computer Vision and Pattern Recognition · Computer Science 2026-04-10 Arnav Devalapally , Poornima Jain , Kartik Srinivas , Vineeth N. Balasubramanian

Unsupervised domain adaptation (UDA) is one of the key technologies to solve a problem where it is hard to obtain ground truth labels needed for supervised learning. In general, UDA assumes that all samples from source and target domains…

Image and Video Processing · Electrical Eng. & Systems 2022-09-07 Satoshi Kondo

Distribution shift widely exists in medical images acquired from different medical centres and poses a significant obstacle to deploying the pre-trained semantic segmentation model in real-world applications. Test-time adaptation has proven…

Computer Vision and Pattern Recognition · Computer Science 2024-05-28 Ziyang Chen , Yongsheng Pan , Yiwen Ye , Mengkang Lu , Yong Xia