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Face anti-spoofing approaches based on domain generalization (DG) have drawn growing attention due to their robustness for unseen scenarios. Previous methods treat each sample from multiple domains indiscriminately during the training…

计算机视觉与模式识别 · 计算机科学 2021-07-01 Shubao Liu , Ke-Yue Zhang , Taiping Yao , Kekai Sheng , Shouhong Ding , Ying Tai , Jilin Li , Yuan Xie , Lizhuang Ma

Domain generalization (DG) strives to address distribution shifts across diverse environments to enhance model's generalizability. Current DG approaches are confined to acquiring robust representations with continuous features, specifically…

计算机视觉与模式识别 · 计算机科学 2025-04-10 Shaocong Long , Qianyu Zhou , Xikun Jiang , Chenhao Ying , Lizhuang Ma , Yuan Luo

Distributional shift between domains poses great challenges to modern machine learning algorithms. The domain generalization (DG) signifies a popular line targeting this issue, where these methods intend to uncover universal patterns across…

计算机视觉与模式识别 · 计算机科学 2023-10-05 Hao Chen , Qi Zhang , Zenan Huang , Haobo Wang , Junbo Zhao

Federated Learning (FL) is a prominent framework that enables training a centralized model while securing user privacy by fusing local, decentralized models. In this setting, one major obstacle is data heterogeneity, i.e., each client…

机器学习 · 计算机科学 2022-06-22 Artur Back de Luca , Guojun Zhang , Xi Chen , Yaoliang Yu

Discriminative unsupervised learning methods such as contrastive learning have demonstrated the ability to learn generalized visual representations on centralized data. It is nonetheless challenging to adapt such methods to a distributed…

计算机视觉与模式识别 · 计算机科学 2025-06-13 Yuewei Yang , Jingwei Sun , Ang Li , Hai Li , Yiran Chen

Contemporary person re-identification (\reid) methods usually require access to data from the deployment camera network during training in order to perform well. This is because contemporary \reid{} models trained on one dataset do not…

计算机视觉与模式识别 · 计算机科学 2019-07-23 Jieru Jia , Qiuqi Ruan , Timothy M. Hospedales

While prior domain generalization (DG) benchmarks consider train-test dataset heterogeneity, we evaluate Federated DG which introduces federated learning (FL) specific challenges. Additionally, we explore domain-based heterogeneity in…

机器学习 · 计算机科学 2024-04-12 Ruqi Bai , Saurabh Bagchi , David I. Inouye

Existing face forgery detection usually follows the paradigm of training models in a single domain, which leads to limited generalization capacity when unseen scenarios and unknown attacks occur. In this paper, we elaborately investigate…

计算机视觉与模式识别 · 计算机科学 2024-07-01 Yingxin Lai , Zitong Yu , Jing Yang , Bin Li , Xiangui Kang , Linlin Shen

Existing disentangled-based methods for generalizable person re-identification aim at directly disentangling person representations into domain-relevant interference and identity-relevant feature. However, they ignore that some crucial…

计算机视觉与模式识别 · 计算机科学 2021-11-30 Kecheng Zheng , Jiawei Liu , Wei Wu , Liang Li , Zheng-jun Zha

With the continuous development of deep learning in the field of image generation models, a large number of vivid forged faces have been generated and spread on the Internet. These high-authenticity artifacts could grow into a threat to…

计算机视觉与模式识别 · 计算机科学 2023-07-24 Decheng Liu , Zhan Dang , Chunlei Peng , Yu Zheng , Shuang Li , Nannan Wang , Xinbo Gao

Recently, Federated Learning (FL) has gained popularity for its privacy-preserving and collaborative learning capabilities. Personalized Federated Learning (PFL), building upon FL, aims to address the issue of statistical heterogeneity and…

机器学习 · 计算机科学 2024-12-03 Pengzhan Zhou , Yuepeng He , Yijun Zhai , Kaixin Gao , Chao Chen , Zhida Qin , Chong Zhang , Songtao Guo

Federated domain generalization for person re-identification (FedDG-ReID) aims to collaboratively train a pedestrian retrieval model across multiple decentralized source domains such that it can generalize to unseen target environments…

计算机视觉与模式识别 · 计算机科学 2026-04-30 Fengchun Zhang , Qiang Ma , Liuyu Xiang , Jinshan Lai , Tingxuan Huang , Jianwei Hu

Fine-grained domain generalization (FGDG) is a more challenging task than traditional DG tasks due to its small inter-class variations and relatively large intra-class disparities. When domain distribution changes, the vulnerability of…

计算机视觉与模式识别 · 计算机科学 2025-03-27 Wenlong Yu , Dongyue Chen , Qilong Wang , Qinghua Hu

Single Domain Generalization (SDG) aims to train models that maintain consistent performance across diverse scenarios using data from a single source. While latent diffusion models (LDMs) show promise for augmenting limited source data, our…

计算机视觉与模式识别 · 计算机科学 2026-03-24 Hao Li , Yubin Xiao , Ke Liang , Mengzhu Wang , Long Lan , Kenli Li , Xinwang Liu

Robust whole-slide image (WSI) analysis under strict data-governance remains challenging due to substantial cross-institutional stain heterogeneity. Domain generalization (DG) mitigates these shifts but typically requires centralized data,…

计算机视觉与模式识别 · 计算机科学 2026-05-15 Fengyi Zhang , Junya Zhang , Wenzhuo Sun

In the context of Federated Learning with heterogeneous data environments, local models tend to converge to their own local model optima during local training steps, deviating from the overall data distributions. Aggregation of these local…

机器学习 · 计算机科学 2025-10-29 Mortesa Hussaini , Jan Theiß , Anthony Stein

In traditional Federated Learning approaches like FedAvg, the global model underperforms when faced with data heterogeneity. Personalized Federated Learning (PFL) enables clients to train personalized models to fit their local data…

机器学习 · 计算机科学 2024-07-24 Xinghao Wu , Jianwei Niu , Xuefeng Liu , Mingjia Shi , Guogang Zhu , Shaojie Tang

Federated learning is a privacy-preserving machine learning technique that learns a shared model across decentralized clients. It can alleviate privacy concerns of personal re-identification, an important computer vision task. In this work,…

计算机视觉与模式识别 · 计算机科学 2020-10-12 Weiming Zhuang , Yonggang Wen , Xuesen Zhang , Xin Gan , Daiying Yin , Dongzhan Zhou , Shuai Zhang , Shuai Yi

Lack of generalization to unseen domains/attacks is the Achilles heel of most face presentation attack detection (FacePAD) algorithms. Existing attempts to enhance the generalizability of FacePAD solutions assume that data from multiple…

计算机视觉与模式识别 · 计算机科学 2023-08-23 Naif Alkhunaizi , Koushik Srivatsan , Faris Almalik , Ibrahim Almakky , Karthik Nandakumar

Federated Learning (FL) for face recognition aggregates locally optimized models from individual clients to construct a generalized face recognition model. However, previous studies present two major challenges: insufficient incorporation…

计算机视觉与模式识别 · 计算机科学 2024-07-24 Hansol Kim , Hoyeol Choi , Youngjun Kwak