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Test-time adaptation (TTA) is an effective approach to mitigate performance degradation of trained models when encountering input distribution shifts at test time. However, existing TTA methods often suffer significant performance drops…

机器学习 · 计算机科学 2025-02-06 Minguk Jang , Hye Won Chung

Distribution shifts and adversarial examples are two major challenges for deploying machine learning models. While these challenges have been studied individually, their combination is an important topic that remains relatively…

机器学习 · 计算机科学 2024-02-20 Yunjuan Wang , Hussein Hazimeh , Natalia Ponomareva , Alexey Kurakin , Ibrahim Hammoud , Raman Arora

Supervised fine-tuning (SFT) is a commonly used technique to adapt large language models (LLMs) to downstream tasks. In practice, SFT on a full dataset is computationally expensive and sometimes suffers from overfitting or bias…

机器学习 · 计算机科学 2026-02-03 Heming Zou , Yixiu Mao , Yun Qu , Qi Wang , Xiangyang Ji

Unsupervised Domain Adaptation (UDA) has attracted a lot of attention in the last ten years. The emergence of Domain Invariant Representations (IR) has improved drastically the transferability of representations from a labelled source…

机器学习 · 计算机科学 2020-06-25 Victor Bouvier , Philippe Very , Clément Chastagnol , Myriam Tami , Céline Hudelot

Existing deep neural network (DNN) based wireless localization approaches typically do not capture uncertainty inherent in their estimates. In this work, we propose and evaluate variational and scalable DNN approaches to measure the…

信号处理 · 电气工程与系统科学 2021-06-10 Artan Salihu , Stefan Schwarz , Markus Rupp

Modern image classifiers are very accurate, but the predictions come without uncertainty estimates. Conformal predictors provide uncertainty estimates by computing a set of classes containing the correct class with a user-specified…

机器学习 · 计算机科学 2023-06-06 Fatih Furkan Yilmaz , Reinhard Heckel

Precise confidence estimation in deep learning is vital for high-stakes fields like medical imaging, where overconfident misclassifications can have serious consequences. This work evaluates the effectiveness of Temperature Scaling (TS), a…

计算机视觉与模式识别 · 计算机科学 2025-09-30 Ankur Chanda , Kushan Choudhury , Shubhrodeep Roy , Shubhajit Biswas , Somenath Kuiry

Unsupervised Domain Adaptation (UDA) addresses the problem of performance degradation due to domain shift between training and testing sets, which is common in computer vision applications. Most existing UDA approaches are based on…

计算机视觉与模式识别 · 计算机科学 2019-05-14 Songsong Wu , Yan Yan , Hao Tang , Jianjun Qian , Jian Zhang , Xiao-Yuan Jing

The development of methods to estimate the severity of Ulcerative Colitis (UC) is of significant importance. However, these methods often suffer from domain shifts caused by differences in imaging devices and clinical settings across…

计算机视觉与模式识别 · 计算机科学 2025-09-19 Takamasa Yamaguchi , Brian Kenji Iwana , Ryoma Bise , Shota Harada , Takumi Okuo , Kiyohito Tanaka , Kaito Shiku

In this paper, we make two contributions to unsupervised domain adaptation (UDA) using the convolutional neural network (CNN). First, our approach transfers knowledge in all the convolutional layers through attention alignment. Most…

计算机视觉与模式识别 · 计算机科学 2018-08-14 Guoliang Kang , Liang Zheng , Yan Yan , Yi Yang

Class imbalance naturally exists when train and test models in different domains. Unsupervised domain adaptation (UDA) augments model performance with only accessible annotations from the source domain and unlabeled data from the target…

计算与语言 · 计算机科学 2022-05-27 Yuexin Wu , Xiaolei Huang

Unsupervised domain adaptation (UDA) focuses on transferring knowledge learned in the labeled source domain to the unlabeled target domain. Despite significant progress that has been achieved in single-target domain adaptation for image…

计算机视觉与模式识别 · 计算机科学 2023-09-14 Xiaohu Lu , Hayder Radha

Unsupervised representation learning approaches aim to learn discriminative feature representations from unlabeled data, without the requirement of annotating every sample. Enabling unsupervised representation learning is extremely crucial…

机器学习 · 计算机科学 2023-08-04 Qianwen Meng , Hangwei Qian , Yong Liu , Yonghui Xu , Zhiqi Shen , Lizhen Cui

A novel approach for unsupervised domain adaptation for neural networks is proposed. It relies on metric-based regularization of the learning process. The metric-based regularization aims at domain-invariant latent feature representations…

Medical image segmentation is a fundamental and critical step in many clinical approaches. Semi-supervised learning has been widely applied to medical image segmentation tasks since it alleviates the heavy burden of acquiring…

图像与视频处理 · 电气工程与系统科学 2022-08-29 Yichi Zhang , Rushi Jiao , Qingcheng Liao , Dongyang Li , Jicong Zhang

Low-dose computed tomography (LDCT) image reconstruction techniques can reduce patient radiation exposure while maintaining acceptable imaging quality. Deep learning is widely used in this problem, but the performance of testing data…

图像与视频处理 · 电气工程与系统科学 2024-06-04 Kecheng Chen , Jie Liu , Renjie Wan , Victor Ho-Fun Lee , Varut Vardhanabhuti , Hong Yan , Haoliang Li

In many real-world applications, researchers aim to deploy models trained in a source domain to a target domain, where obtaining labeled data is often expensive, time-consuming, or even infeasible. While most existing literature assumes…

统计方法学 · 统计学 2025-08-26 Seong-ho Lee , Yanyuan Ma , Jiwei Zhao

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…

机器学习 · 计算机科学 2025-07-29 Hassan Ismail Fawaz , Ganesh Del Grosso , Tanguy Kerdoncuff , Aurelie Boisbunon , Illyyne Saffar

Deep neural networks (DNNs) have made a revolution in numerous fields during the last decade. However, in tasks with high safety requirements, such as medical or autonomous driving applications, providing an assessment of the models…

机器学习 · 计算机科学 2020-11-20 Omer Achrack , Raizy Kellerman , Ouriel Barzilay

Source-free unsupervised domain adaptation (SFUDA) aims to learn a target domain model using unlabeled target data and the knowledge of a well-trained source domain model. Most previous SFUDA works focus on inferring semantics of target…

计算机视觉与模式识别 · 计算机科学 2023-04-19 Jiangbo Pei , Zhuqing Jiang , Aidong Men , Liang Chen , Yang Liu , Qingchao Chen