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Unsupervised Source (data) Free domain adaptation (USFDA) aims to transfer knowledge from a well-trained source model to a related but unlabeled target domain. In such a scenario, all conventional adaptation methods that require source data…

机器学习 · 计算机科学 2022-04-08 Weikai Li , Meng Cao , Songcan Chen

Manual annotation of 3D medical images for segmentation tasks is tedious and time-consuming. Moreover, data privacy limits the applicability of crowd sourcing to perform data annotation in medical domains. As a result, training deep neural…

计算机视觉与模式识别 · 计算机科学 2024-10-15 Ruitong Sun , Mohammad Rostami

Reliable brain tumor segmentation in MRI is indispensable for treatment planning and outcome monitoring, yet models trained on curated benchmarks often fail under domain shifts arising from scanner and protocol variability as well as…

计算机视觉与模式识别 · 计算机科学 2025-09-23 Yuanhan Wang , Yifei Chen , Shuo Jiang , Wenjing Yu , Mingxuan Liu , Beining Wu , Jinying Zong , Feiwei Qin , Changmiao Wang , Qiyuan Tian

In this paper, we investigate Source-free Open-partial Domain Adaptation (SF-OPDA), which addresses the situation where there exist both domain and category shifts between source and target domains. Under the SF-OPDA setting, which aims to…

计算机视觉与模式识别 · 计算机科学 2023-01-12 Shiqi Yang , Yaxing Wang , Kai Wang , Shangling Jui , Joost van de Weijer

Fine-tuning and Domain Adaptation emerged as effective strategies for efficiently transferring deep learning models to new target tasks. However, target domain labels are not accessible in many real-world scenarios. This led to the…

机器学习 · 计算机科学 2023-02-13 Andrea Maracani , Raffaello Camoriano , Elisa Maiettini , Davide Talon , Lorenzo Rosasco , Lorenzo Natale

Unsupervised domain adaptation for semantic segmentation has been intensively studied due to the low cost of the pixel-level annotation for synthetic data. The most common approaches try to generate images or features mimicking the…

计算机视觉与模式识别 · 计算机科学 2020-09-21 Kaihong Wang , Chenhongyi Yang , Margrit Betke

Functional magnetic resonance imaging (fMRI) analysis faces significant challenges due to limited dataset sizes and domain variability between studies. Traditional self-supervised learning methods inspired by computer vision often rely on…

图像与视频处理 · 电气工程与系统科学 2025-10-08 Jakub Frac , Alexander Schmatz , Qiang Li , Guido Van Wingen , Shujian Yu

This work investigates Source-Free Domain Adaptation (SFDA), where a model adapts to a target domain without access to source data. A new augmentation technique, Shuffle PatchMix (SPM), and a novel reweighting strategy are introduced to…

计算机视觉与模式识别 · 计算机科学 2025-08-28 Prasanna Reddy Pulakurthi , Majid Rabbani , Jamison Heard , Sohail Dianat , Celso M. de Melo , Raghuveer Rao

Magnetic Resonance Imaging (MRI) scans acquired from different scanners or institutions often suffer from domain shifts owing to variations in hardware, protocols, and acquisition parameters. This discrepancy degrades the performance of…

计算机视觉与模式识别 · 计算机科学 2026-01-21 Mohd Usama , Belal Ahmad , Faleh Menawer R Althiyabi

Unsupervised Graph Domain Adaptation (UGDA) has emerged as a practical solution to transfer knowledge from a label-rich source graph to a completely unlabelled target graph. However, most methods require a labelled source graph to provide…

机器学习 · 计算机科学 2024-03-05 Zhen Zhang , Meihan Liu , Anhui Wang , Hongyang Chen , Zhao Li , Jiajun Bu , Bingsheng He

Unsupervised domain adaptation tackles the problem that domain shifts between training and test data impair the performance of neural networks in many real-world applications. Thereby, in realistic scenarios, the source data may no longer…

机器学习 · 计算机科学 2026-01-19 Pascal Schlachter , Bin Yang

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…

计算机视觉与模式识别 · 计算机科学 2026-04-10 Arnav Devalapally , Poornima Jain , Kartik Srinivas , Vineeth N. Balasubramanian

Domain generalization aims to learn a generalizable model from a known source domain for various unknown target domains. It has been studied widely by domain randomization that transfers source images to different styles in spatial space…

计算机视觉与模式识别 · 计算机科学 2021-03-04 Jiaxing Huang , Dayan Guan , Aoran Xiao , Shijian Lu

Generalizability of deep learning models may be severely affected by the difference in the distributions of the train (source domain) and the test (target domain) sets, e.g., when the sets are produced by different hardware. As a…

图像与视频处理 · 电气工程与系统科学 2022-08-02 Ivan Zakazov , Vladimir Shaposhnikov , Iaroslav Bespalov , Dmitry V. Dylov

In clinical practice, medical segmentation datasets are often limited and heterogeneous, with variations in modalities, protocols, and anatomical targets across institutions. Existing deep learning models struggle to jointly learn from such…

计算机视觉与模式识别 · 计算机科学 2026-01-22 Weiwei Ma , Xiaobing Yu , Peijie Qiu , Jin Yang , Pan Xiao , Xiaoqi Zhao , Xiaofeng Liu , Tomo Miyazaki , Shinichiro Omachi , Yongsong Huang

In this work, we introduce a new concept, named source-free open compound domain adaptation (SF-OCDA), and study it in semantic segmentation. SF-OCDA is more challenging than the traditional domain adaptation but it is more practical. It…

计算机视觉与模式识别 · 计算机科学 2021-06-08 Yuyang Zhao , Zhun Zhong , Zhiming Luo , Gim Hee Lee , Nicu Sebe

In the pursuit of transferring a source model to a target domain without access to the source training data, Source-Free Domain Adaptation (SFDA) has been extensively explored across various scenarios, including Closed-set, Open-set,…

计算机视觉与模式识别 · 计算机科学 2026-01-21 Song Tang , Wenxin Su , Mao Ye , Boyu Wang , Xiatian Zhu

Domain adaptation is crucial for transferring the knowledge from the source labeled CT dataset to the target unlabeled MR dataset in abdominal multi-organ segmentation. Meanwhile, it is highly desirable to avoid the high annotation cost…

计算机视觉与模式识别 · 计算机科学 2022-05-31 Jin Hong , Yu-Dong Zhang , Weitian Chen

Unsupervised domain adaptation is useful in medical image segmentation. Particularly, when ground truths of the target images are not available, domain adaptation can train a target-specific model by utilizing the existing labeled images…

图像与视频处理 · 电气工程与系统科学 2021-06-17 Fuping Wu , Xiahai Zhuang

Given the emergence of deep learning, digital pathology has gained popularity for cancer diagnosis based on histology images. Deep weakly supervised object localization (WSOL) models can be trained to classify histology images according to…

计算机视觉与模式识别 · 计算机科学 2024-05-14 Alexis Guichemerre , Soufiane Belharbi , Tsiry Mayet , Shakeeb Murtaza , Pourya Shamsolmoali , Luke McCaffrey , Eric Granger