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Most unsupervised domain adaptation (UDA) methods assume that labeled source images are available during model adaptation. However, this assumption is often infeasible owing to confidentiality issues or memory constraints on mobile devices.…

Computer Vision and Pattern Recognition · Computer Science 2023-03-17 JoonHo Lee , Gyemin Lee

Deep detection approaches are powerful in controlled conditions, but appear brittle and fail when source models are used off-the-shelf on unseen domains. Most of the existing works on domain adaptation simplify the setting and access…

Computer Vision and Pattern Recognition · Computer Science 2022-09-02 F. Cappio Borlino , S. Polizzotto , B. Caputo , T. Tommasi

Low-altitude Unmanned Aerial Vehicle (UAV) networks rely on robust semantic segmentation as a foundational enabler for distributed sensing-communication-control co-design across heterogeneous agents within the network. However, segmentation…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Jiao Chen , Haoyi Wang , Jianhua Tang , Junyi Wang

Vision-Language Models (VLMs) such as CLIP achieve strong zero-shot recognition by comparing image embeddings to text-derived class prototypes. However, under domain shift, they suffer from feature drift, class-prior mismatch, and severe…

Computer Vision and Pattern Recognition · Computer Science 2025-11-13 Byunghyun Kim

Deep learning has become the method of choice to tackle real-world problems in different domains, partly because of its ability to learn from data and achieve impressive performance on a wide range of applications. However, its success…

Computer Vision and Pattern Recognition · Computer Science 2022-08-17 Xiaofeng Liu , Chaehwa Yoo , Fangxu Xing , Hyejin Oh , Georges El Fakhri , Je-Won Kang , Jonghye Woo

Deep learning algorithms have demonstrated tremendous success on challenging medical imaging problems. However, post-deployment, these algorithms are susceptible to data distribution variations owing to \emph{limited data issues} and…

Computer Vision and Pattern Recognition · Computer Science 2018-12-05 Rahul Venkataramani , Hariharan Ravishankar , Saihareesh Anamandra

Unsupervised domain adaptation (UDA) has been a vital protocol for migrating information learned from a labeled source domain to facilitate the implementation in an unlabeled heterogeneous target domain. Although UDA is typically jointly…

Computer Vision and Pattern Recognition · Computer Science 2022-09-19 Xiaofeng Liu , Fangxu Xing , Georges El Fakhri , Jonghye Woo

Existing methods for unsupervised domain adaptation often rely on minimizing some statistical distance between the source and target samples in the latent space. To avoid the sampling variability, class imbalance, and data-privacy concerns…

Machine Learning · Computer Science 2021-10-26 Korawat Tanwisuth , Xinjie Fan , Huangjie Zheng , Shujian Zhang , Hao Zhang , Bo Chen , Mingyuan Zhou

This paper studies fast adaptive beamforming optimization for the signal-to-interference-plus-noise ratio balancing problem in a multiuser multiple-input single-output downlink system. Existing deep learning based approaches to predict…

Information Theory · Computer Science 2020-11-03 Yi Yuan , Gan Zheng , Kai-Kit Wong , Björn Ottersten , Zhi-Quan Luo

Deep learning-based diagnostic models often suffer performance drops due to distribution shifts between training (source) and test (target) domains. Collecting and labeling sufficient target domain data for model retraining represents an…

Computer Vision and Pattern Recognition · Computer Science 2025-07-02 Yaofei Duan , Yuhao Huang , Xin Yang , Luyi Han , Xinyu Xie , Zhiyuan Zhu , Ping He , Ka-Hou Chan , Ligang Cui , Sio-Kei Im , Dong Ni , Tao Tan

Class distribution plays an important role in learning deep classifiers. When the proportion of each class in the test set differs from the training set, the performance of classification nets usually degrades. Such a label distribution…

Image and Video Processing · Electrical Eng. & Systems 2022-07-12 Wenao Ma , Cheng Chen , Shuang Zheng , Jing Qin , Huimao Zhang , Qi Dou

Test time Adaptation is a promising approach for mitigating domain shift in medical image segmentation; however, current evaluations remain limited in terms of modality coverage, task diversity, and methodological consistency. We present…

Computer Vision and Pattern Recognition · Computer Science 2025-12-03 Wenjing Yu , Shuo Jiang , Yifei Chen , Shuo Chang , Yuanhan Wang , Beining Wu , Jie Dong , Mingxuan Liu , Shenghao Zhu , Feiwei Qin , Changmiao Wang , Qiyuan Tian

Cross-modality image segmentation aims to segment the target modalities using a method designed in the source modality. Deep generative models can translate the target modality images into the source modality, thus enabling cross-modality…

Image and Video Processing · Electrical Eng. & Systems 2024-04-11 Zihao Wang , Yingyu Yang , Yuzhou Chen , Tingting Yuan , Maxime Sermesant , Herve Delingette , Ona Wu

Since distribution shifts are likely to occur during test-time and can drastically decrease the model's performance, online test-time adaptation (TTA) continues to update the model after deployment, leveraging the current test data.…

Computer Vision and Pattern Recognition · Computer Science 2023-10-27 Robert A. Marsden , Mario Döbler , Bin Yang

On-the-fly category discovery (OCD) aims to recognize known categories while simultaneously discovering novel ones from an unlabeled online stream, using a model trained only on labeled data. Existing approaches freeze the feature extractor…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Yanan Wu , Yuhan Yan , Tailai Chen , Zhixiang Chi , ZiZhang Wu , Yi Jin , Yang Wang , Zhenbo Li

Unsupervised domain adaptation (UDA) methods intend to reduce the gap between source and target domains by using unlabeled target domain and labeled source domain data, however, in the medical domain, target domain data may not always be…

Image and Video Processing · Electrical Eng. & Systems 2022-02-01 Mingxuan Gu , Sulaiman Vesal , Ronak Kosti , Andreas Maier

Achieving high accuracy on data from domains unseen during training is a fundamental challenge in domain generalization (DG). While state-of-the-art DG classifiers have demonstrated impressive performance across various tasks, they have…

Computer Vision and Pattern Recognition · Computer Science 2023-07-18 Akshay Mehra , Yunbei Zhang , Bhavya Kailkhura , Jihun Hamm

In deep learning, maintaining model robustness against distribution shifts is critical. This work explores a broad range of possibilities to adapt vision-language foundation models at test-time, with a particular emphasis on CLIP and its…

Computer Vision and Pattern Recognition · Computer Science 2024-09-10 Mario Döbler , Robert A. Marsden , Tobias Raichle , Bin Yang

Test-time adaptation enables a trained model to adjust to a new domain during inference, making it particularly valuable in clinical settings where such on-the-fly adaptation is required. However, existing techniques depend on large target…

Computer Vision and Pattern Recognition · Computer Science 2025-07-01 Smriti Joshi , Richard Osuala , Lidia Garrucho , Kaisar Kushibar , Dimitri Kessler , Oliver Diaz , Karim Lekadir

We develop an algorithm to improve the performance of a pre-trained model under concept shift without retraining the model from scratch when only unannotated samples of initial concepts are accessible. We model this problem as a domain…

Machine Learning · Computer Science 2022-11-22 Mohammad Rostami , Aram Galstyan