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Unsupervised domain adaptation (UDA) adapts a model from a labeled source domain to an unlabeled target domain in a one-off way. Though widely applied, UDA faces a great challenge whenever the distribution shift between the source and the…

机器学习 · 计算机科学 2025-01-06 Yifei He , Haoxiang Wang , Bo Li , Han Zhao

Unsupervised Domain Adaptation (UDA) aims to transfer the knowledge from the labeled source domain to the unlabeled target domain in the presence of dataset shift. Most existing methods cannot address the domain alignment and class…

机器学习 · 计算机科学 2021-12-22 You-Wei Luo , Chuan-Xian Ren , Zi-Ying Chen

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…

图像与视频处理 · 电气工程与系统科学 2022-02-01 Mingxuan Gu , Sulaiman Vesal , Ronak Kosti , Andreas Maier

Unsupervised domain adaptation (UDA) is widely used to transfer knowledge from a labeled source domain to an unlabeled target domain with different data distribution. While extensive studies attested that deep learning models are vulnerable…

计算机视觉与模式识别 · 计算机科学 2021-03-26 Jiajin Zhang , Hanqing Chao , Pingkun Yan

This paper presents an unsupervised domain adaptation (UDA) method for predicting unlabeled target domain data, specific to complex UDA tasks where the domain gap is significant. Mainstream UDA models aim to learn from both domains and…

计算机视觉与模式识别 · 计算机科学 2023-05-09 Jun Kataoka , Hyunsoo Yoon

Existing GAN inversion methods work brilliantly in reconstructing high-quality (HQ) images while struggling with more common low-quality (LQ) inputs in practical application. To address this issue, we propose Unsupervised Domain Adaptation…

计算机视觉与模式识别 · 计算机科学 2024-05-31 Siyu Xing , Chen Gong , Hewei Guo , Xiao-Yu Zhang , Xinwen Hou , Yu Liu

Though unsupervised domain adaptation (UDA) has achieved very impressive progress recently, it remains a great challenge due to missing target annotations and the rich discrepancy between source and target distributions. We propose Spectral…

计算机视觉与模式识别 · 计算机科学 2022-06-07 Jingyi Zhang , Jiaxing Huang , Zichen Tian , Shijian Lu

Unsupervised domain adaptation facilitates the unlabeled target domain relying on well-established source domain information. The conventional methods forcefully reducing the domain discrepancy in the latent space will result in the…

计算机视觉与模式识别 · 计算机科学 2020-02-13 Guanglei Yang , Haifeng Xia , Mingli Ding , Zhengming Ding

Owing to the advances in image processing technology and large-scale datasets, companies have implemented facial authentication processes, thereby stimulating increased focus on face anti-spoofing (FAS) against realistic presentation…

计算机视觉与模式识别 · 计算机科学 2023-07-25 Yunseung Lee , Youngjun Kwak , Jinho Shin

Recent multi-modal face anti-spoofing (FAS) methods have investigated the potential of leveraging multiple modalities to distinguish live and spoof faces. However, pre-adapted multi-modal FAS models often fail to detect unseen attacks from…

计算机视觉与模式识别 · 计算机科学 2025-09-30 Ming-Tsung Hsu , Fang-Yu Hsu , Yi-Ting Lin , Kai-Heng Chien , Jun-Ren Chen , Cheng-Hsiang Su , Yi-Chen Ou , Chiou-Ting Hsu , Pei-Kai Huang

Simulators can efficiently generate large amounts of labeled synthetic data with perfect supervision for hard-to-label tasks like semantic segmentation. However, they introduce a domain gap that severely hurts real-world performance. We…

计算机视觉与模式识别 · 计算机科学 2021-08-19 Vitor Guizilini , Jie Li , Rares Ambrus , Adrien Gaidon

Domain Adaptation (DA) is a method for enhancing a model's performance on a target domain with inadequate annotated data by applying the information the model has acquired from a related source domain with sufficient labeled data. The…

计算机视觉与模式识别 · 计算机科学 2024-02-08 Shivang Chopra , Suraj Kothawade , Houda Aynaou , Aman Chadha

The face anti-spoofing (FAS) method performs well under intra-domain setups. However, its cross-domain performance is unsatisfactory. As a result, the domain generalization (DG) method has gained more attention in FAS. Existing methods…

计算机视觉与模式识别 · 计算机科学 2023-06-06 Tianyi Zheng

In this work, we study multi-domain learning for face anti-spoofing(MD-FAS), where a pre-trained FAS model needs to be updated to perform equally well on both source and target domains while only using target domain data for updating. We…

计算机视觉与模式识别 · 计算机科学 2023-04-18 Xiao Guo , Yaojie Liu , Anil Jain , Xiaoming Liu

Unsupervised domain adaptive semantic segmentation (UDA-SS) aims to train a model on the source domain data (e.g., synthetic) and adapt the model to predict target domain data (e.g., real-world) without accessing target annotation data.…

计算机视觉与模式识别 · 计算机科学 2024-10-29 Md. Al-Masrur Khan , Zheng Chen , Lantao Liu

Target domain pseudo-labelling has shown effectiveness in unsupervised domain adaptation (UDA). However, pseudo-labels of unlabeled target domain data are inevitably noisy due to the distribution shift between source and target domains.…

计算机视觉与模式识别 · 计算机科学 2023-03-13 Zhongying Deng , Da Li , Junjun He , Yi-Zhe Song , Tao Xiang

Automatically understanding emotions from visual data is a fundamental task for human behaviour understanding. While models devised for Facial Expression Recognition (FER) have demonstrated excellent performances on many datasets, they…

计算机视觉与模式识别 · 计算机科学 2022-10-12 Alessandro Conti , Paolo Rota , Yiming Wang , Elisa Ricci

Prior Unsupervised Domain Adaptation (UDA) methods often aim to train a domain-invariant feature extractor, which may hinder the model from learning sufficiently discriminative features. To tackle this, a line of works based on prompt…

机器学习 · 计算机科学 2025-04-02 Hoang Phan , Lam Tran , Quyen Tran , Trung Le

Domain adaptation (DA) is a representation learning methodology that transfers knowledge from a label-sufficient source domain to a label-scarce target domain. While most of early methods are focused on unsupervised DA (UDA), several…

计算机视觉与模式识别 · 计算机科学 2021-04-02 Yoonhyung Kim , Changick Kim

A dominant approach for addressing unsupervised domain adaptation is to map data points for the source and the target domains into an embedding space which is modeled as the output-space of a shared deep encoder. The encoder is trained to…

机器学习 · 计算机科学 2022-09-30 Mohammad Rostami