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A foundational requirement of a deployed ML model is to generalize to data drawn from a testing distribution that is different from training. A popular solution to this problem is to adapt a pre-trained model to novel domains using only…

Computer Vision and Pattern Recognition · Computer Science 2022-07-12 Kowshik Thopalli , Pavan Turaga , Jayaraman J. Thiagarajan

Active domain adaptation (ADA) aims to improve the model adaptation performance by incorporating active learning (AL) techniques to label a maximally-informative subset of target samples. Conventional AL methods do not consider the…

Computer Vision and Pattern Recognition · Computer Science 2023-07-24 Duojun Huang , Jichang Li , Weikai Chen , Junshi Huang , Zhenhua Chai , Guanbin Li

Image-to-image translation has emerged as a powerful technique in medical imaging, enabling tasks such as image denoising and cross-modality conversion. However, it suffers from limitations in handling out-of-distribution samples without…

Computer Vision and Pattern Recognition · Computer Science 2025-09-17 Irene Iele , Francesco Di Feola , Valerio Guarrasi , Paolo Soda

Recurrent Neural Networks (RNNs) have emerged as an interesting alternative to conventional material modeling approaches, particularly for nonlinear path dependent materials. Remarkable computational enhancements are obtained using RNNs…

Computational Engineering, Finance, and Science · Computer Science 2024-09-05 Petter Uvdal , Mohsen Mirkhalaf

Deep learning methods have shown promising performance in fault diagnosis for multimode process. Most existing studies assume that the collected health state categories from different operating modes are identical. However, in real…

Machine Learning · Computer Science 2025-10-30 Guangqiang Li , M. Amine Atoui , Xiangshun Li

The diversity of retinal imaging devices poses a significant challenge: domain shift, which leads to performance degradation when applying the deep learning models trained on one domain to new testing domains. In this paper, we propose a…

Image and Video Processing · Electrical Eng. & Systems 2021-10-07 Peng Liu , Charlie T. Tran , Bin Kong , Ruogu Fang

In current open real-world autonomous driving scenarios, challenges such as sensor failure and extreme weather conditions hinder the generalization of most autonomous driving perception models to these unseen domain due to the domain shifts…

Computer Vision and Pattern Recognition · Computer Science 2024-12-02 Dacheng Liao , Mengshi Qi , Liang Liu , Huadong Ma

Domain adaptation is the supervised learning setting in which the training and test data are sampled from different distributions: training data is sampled from a source domain, whilst test data is sampled from a target domain. This paper…

Machine Learning · Statistics 2016-10-21 Wouter M. Kouw , Jesse H. Krijthe , Marco Loog , Laurens J. P. van der Maaten

Test-time adaptation (TTA) is the problem of updating a pre-trained source model at inference time given test input(s) from a different target domain. Most existing TTA approaches assume the setting in which the target domain is stationary,…

Machine Learning · Computer Science 2023-04-05 Dhanajit Brahma , Piyush Rai

Pretrained VLMs exhibit strong zero-shot classification capabilities, but their predictions degrade significantly under common image corruptions. To improve robustness, many test-time adaptation (TTA) methods adopt positive data…

Machine Learning · Computer Science 2025-11-14 Ruxi Deng , Wenxuan Bao , Tianxin Wei , Jingrui He

The advancements in generative modeling, particularly the advent of diffusion models, have sparked a fundamental question: how can these models be effectively used for discriminative tasks? In this work, we find that generative models can…

Computer Vision and Pattern Recognition · Computer Science 2023-12-01 Mihir Prabhudesai , Tsung-Wei Ke , Alexander C. Li , Deepak Pathak , Katerina Fragkiadaki

Continual Test-Time Adaptation (CTTA) is proposed to migrate a source pre-trained model to continually changing target distributions, addressing real-world dynamism. Existing CTTA methods mainly rely on entropy minimization or…

Computer Vision and Pattern Recognition · Computer Science 2024-03-28 Jiaming Liu , Ran Xu , Senqiao Yang , Renrui Zhang , Qizhe Zhang , Zehui Chen , Yandong Guo , Shanghang Zhang

Test-time adaptation (TTA) effectively counters distribution shifts but exposes models to adversarial manipulation via the unlabeled test stream. Existing class-wise targeted attacks remain impractical for stealthy exploitation in this…

Machine Learning · Computer Science 2026-05-25 Phuc Duc Nguyen , Quang Duc Nguyen

Deep learning-based medical image segmentation models often face performance degradation when deployed across various medical centers, largely due to the discrepancies in data distribution. Test Time Adaptation (TTA) methods, which adapt…

Computer Vision and Pattern Recognition · Computer Science 2024-05-15 Shishuai Hu , Zehui Liao , Zeyou Liu , Yong Xia

3D Vision-Language Foundation Models (VLFMs) have shown strong generalization and zero-shot recognition capabilities in open-world point cloud processing tasks. However, these models often underperform in practical scenarios where data are…

Computer Vision and Pattern Recognition · Computer Science 2025-11-24 Mehran Tamjidi , Hamidreza Dastmalchi , Mohammadreza Alimoradijazi , Ali Cheraghian , Aijun An , Morteza Saberi

Deep neural networks often degrade under distribution shifts. Although domain adaptation offers a solution, privacy constraints often prevent access to source data, making Test-Time Adaptation (TTA, which adapts using only unlabeled test…

Machine Learning · Computer Science 2025-06-10 Linjing You , Jiabao Lu , Xiayuan Huang

Online adaptation to distribution shifts in satellite image segmentation stands as a crucial yet underexplored problem. In this paper, we address source-free and online domain adaptation, i.e., test-time adaptation (TTA), for satellite…

Computer Vision and Pattern Recognition · Computer Science 2024-01-05 Fahim Faisal Niloy , Kishor Kumar Bhaumik , Simon S. Woo

Fully Test-Time Adaptation (FTTA) addresses domain shifts without access to source data and training protocols of the pre-trained models. Traditional strategies that align source and target feature distributions are infeasible in FTTA due…

Machine Learning · Computer Science 2025-11-18 Ponhvoan Srey , Yaxin Shi , Hangwei Qian , Jing Li , Ivor W. Tsang

Wearable human activity recognition (WHAR) models often suffer from performance degradation under real-world cross-user distribution shifts. Test-time adaptation (TTA) mitigates this degradation by adapting models online using unlabeled…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Zishu Zhou , Zaipeng Xie , Xuanyao Jie

Partial Domain adaptation (PDA) aims to solve a more practical cross-domain learning problem that assumes target label space is a subset of source label space. However, the mismatched label space causes significant negative transfer. A…

Computer Vision and Pattern Recognition · Computer Science 2021-09-21 Jian Hu , Hongya Tuo , Shizhao Zhang , Chao Wang , Haowen Zhong , Zhikang Zou , Zhongliang Jing , Henry Leung , Ruping Zou
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