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Unsupervised domain adaptation has been widely adopted to generalize models for unlabeled data in a target domain, given labeled data in a source domain, whose data distributions differ from the target domain. However, existing works are…

Computer Vision and Pattern Recognition · Computer Science 2021-05-18 Weiming Zhuang , Xin Gan , Yonggang Wen , Xuesen Zhang , Shuai Zhang , Shuai Yi

Enhancing the domain generalization performance of Face Anti-Spoofing (FAS) techniques has emerged as a research focus. Existing methods are dedicated to extracting domain-invariant features from various training domains. Despite the…

Computer Vision and Pattern Recognition · Computer Science 2024-01-31 Lianrui Mu , Jianhong Bai , Xiaoxuan He , Jiangnan Ye , Xiaoyu Liang , Yuchen Yang , Jiedong Zhuang , Haoji Hu

Federated learning (FL), as an effective decentralized distributed learning approach, enables multiple institutions to jointly train a model without sharing their local data. However, the domain feature shift caused by different acquisition…

Computer Vision and Pattern Recognition · Computer Science 2023-09-20 Meng Wang , Kai Yu , Chun-Mei Feng , Yiming Qian , Ke Zou , Lianyu Wang , Rick Siow Mong Goh , Yong Liu , Huazhu Fu

Existing domain generalization methods for face anti-spoofing endeavor to extract common differentiation features to improve the generalization. However, due to large distribution discrepancies among fake faces of different domains, it is…

Computer Vision and Pattern Recognition · Computer Science 2020-04-30 Yunpei Jia , Jie Zhang , Shiguang Shan , Xilin Chen

Deep Neural Networks (DNNs) suffer from domain shift when the test dataset follows a distribution different from the training dataset. Domain generalization aims to tackle this issue by learning a model that can generalize to unseen…

Computer Vision and Pattern Recognition · Computer Science 2022-12-15 Yu Ding , Lei Wang , Bin Liang , Shuming Liang , Yang Wang , Fang Chen

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…

Computer Vision and Pattern Recognition · Computer Science 2021-03-04 Jiaxing Huang , Dayan Guan , Aoran Xiao , Shijian Lu

Unsupervised domain adaptive (UDA) person re-identification (ReID) has gained increasing attention for its effectiveness on the target domain without manual annotations. Most fine-tuning based UDA person ReID methods focus on encoding…

Computer Vision and Pattern Recognition · Computer Science 2022-05-20 Jin Ding , Xue Zhou

Federated learning (FL) is a decentralized learning technique that enables participating devices to collaboratively build a shared Machine Leaning (ML) or Deep Learning (DL) model without revealing their raw data to a third party. Due to…

The single domain generalization(SDG) based on meta-learning has emerged as an effective technique for solving the domain-shift problem. However, the inadequate match of data distribution between source and augmented domains and difficult…

Computer Vision and Pattern Recognition · Computer Science 2023-11-28 Can Sun , Hao Zheng , Zhigang Hu , Liu Yang , Meiguang Zheng , Bo Xu

Medical image segmentation is challenging due to the diversity of medical images and the lack of labeled data, which motivates recent developments in federated semi-supervised learning (FSSL) to leverage a large amount of unlabeled data…

Computer Vision and Pattern Recognition · Computer Science 2025-08-06 Zhipeng Deng , Zhe Xu , Tsuyoshi Isshiki , Yefeng Zheng

Federated Learning (FL) has recently emerged as a promising method that employs a distributed learning model structure to overcome data privacy and transmission issues paused by central machine learning models. In FL, datasets collected…

Machine Learning · Computer Science 2021-11-05 Ali Anaissi , Basem Suleiman

Domain generalization in person re-identification is a highly important meaningful and practical task in which a model trained with data from several source domains is expected to generalize well to unseen target domains. Domain adversarial…

Computer Vision and Pattern Recognition · Computer Science 2021-06-30 Kaiwen Yang , Xinmei Tian

Person Re-identification (ReID) aims to retrieve images of the same individual captured across non-overlapping camera views, making it a critical component of intelligent surveillance systems. Traditional ReID methods assume that the…

Computer Vision and Pattern Recognition · Computer Science 2025-06-17 Hyeonseo Lee , Juhyun Park , Jihyong Oh , Chanho Eom

Federated learning (FL) allows multiple clients to collectively train a high-performance global model without sharing their private data. However, the key challenge in federated learning is that the clients have significant statistical…

Machine Learning · Computer Science 2022-03-23 Liang Gao , Huazhu Fu , Li Li , Yingwen Chen , Ming Xu , Cheng-Zhong Xu

Federated Learning (FL) deals with learning a central model (i.e. the server) in privacy-constrained scenarios, where data are stored on multiple devices (i.e. the clients). The central model has no direct access to the data, but only to…

Machine Learning · Computer Science 2021-05-03 Debora Caldarola , Massimiliano Mancini , Fabio Galasso , Marco Ciccone , Emanuele Rodolà , Barbara Caputo

Federated learning (FL) can be used to improve data privacy and efficiency in magnetic resonance (MR) image reconstruction by enabling multiple institutions to collaborate without needing to aggregate local data. However, the domain shift…

Image and Video Processing · Electrical Eng. & Systems 2022-08-24 Chun-Mei Feng , Yunlu Yan , Shanshan Wang , Yong Xu , Ling Shao , Huazhu Fu

With diverse presentation forgery methods emerging continually, detecting the authenticity of images has drawn growing attention. Although existing methods have achieved impressive accuracy in training dataset detection, they still perform…

Computer Vision and Pattern Recognition · Computer Science 2024-03-20 Yingxin Lai , Guoqing Yang Yifan He , Zhiming Luo , Shaozi Li

Domain generalization (DG) for person re-identification (ReID) is a challenging problem, as access to target domain data is not permitted during the training process. Most existing DG ReID methods update the feature extractor and classifier…

Computer Vision and Pattern Recognition · Computer Science 2023-06-09 Wentao Tan , Changxing Ding , Pengfei Wang , Mingming Gong , Kui Jia

Given labeled data in a source domain, unsupervised domain adaptation has been widely adopted to generalize models for unlabeled data in a target domain, whose data distributions are different. However, existing works are inapplicable to…

Computer Vision and Pattern Recognition · Computer Science 2022-04-12 Weiming Zhuang , Xin Gan , Yonggang Wen , Xuesen Zhang , Shuai Zhang , Shuai Yi

The Federated Averaging (FedAvg) algorithm, which consists of alternating between a few local stochastic gradient updates at client nodes, followed by a model averaging update at the server, is perhaps the most commonly used method in…

Machine Learning · Computer Science 2022-05-30 Liam Collins , Hamed Hassani , Aryan Mokhtari , Sanjay Shakkottai