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Graph Neural Networks (GNNs) have been widely used for various types of graph data processing and analytical tasks in different domains. Training GNNs over centralized graph data can be infeasible due to privacy concerns and regulatory…

机器学习 · 计算机科学 2024-05-15 Nan Cui , Xiuling Wang , Wendy Hui Wang , Violet Chen , Yue Ning

Learning on Graphs (LoG) is widely used in multi-client systems when each client has insufficient local data, and multiple clients have to share their raw data to learn a model of good quality. One scenario is to recommend items to clients…

机器学习 · 计算机科学 2022-12-26 Shuang Wu , Mingxuan Zhang , Yuantong Li , Carl Yang , Pan Li

Graph Neural Networks (GNNs) often struggle with heterophilic data, where connected nodes may have dissimilar labels, as they typically assume homophily and rely on local message passing. To address this, we propose creating alternative…

机器学习 · 计算机科学 2025-06-11 Victor M. Tenorio , Madeline Navarro , Samuel Rey , Santiago Segarra , Antonio G. Marques

Decentralized Federated Learning (DFL) has emerged as a robust distributed paradigm that circumvents the single-point-of-failure and communication bottleneck risks of centralized architectures. However, a significant challenge arises as…

机器学习 · 计算机科学 2025-08-18 Lianshuai Guo , Zhongzheng Yuan , Xunkai Li , Yinlin Zhu , Meixia Qu , Wenyu Wang

Federated graph learning (FGL) enables multiple clients to collaboratively train powerful graph neural networks without sharing their private, decentralized graph data. Inherited from generic federated learning, FGL is critically challenged…

机器学习 · 计算机科学 2025-08-15 Xinrui Li , Qilin Fan , Tianfu Wang , Kaiwen Wei , Ke Yu , Xu Zhang

Graph Neural Networks (GNNs) have gained attention for their ability to learn representations from graph data. Due to privacy concerns and conflicts of interest that prevent clients from directly sharing graph data with one another,…

机器学习 · 计算机科学 2025-03-19 Yang Chen , Bin Zhou

Federated Learning (FL) enables decentralized training of machine learning models on distributed data while preserving privacy. However, in real-world FL settings, client data is often non-identically distributed and imbalanced, resulting…

Graph Neural Networks (GNNs) training often necessitates gathering raw user data on a central server, which raises significant privacy concerns. Federated learning emerges as a solution, enabling collaborative model training without users…

机器学习 · 计算机科学 2024-10-01 Zhidong Gao , Yuanxiong Guo , Yanmin Gong

Integrating native AI support into the network architecture is an essential objective of 6G. Federated Learning (FL) emerges as a potential paradigm, facilitating decentralized AI model training across a diverse range of devices under the…

网络与互联网体系结构 · 计算机科学 2023-09-29 Wenxuan Ye , Chendi Qian , Xueli An , Xueqiang Yan , Georg Carle

Remote sensing semantic segmentation (RSS) is an essential technology in earth observation missions. Due to concerns over geographic information security, data privacy, storage bottleneck and industry competition, high-quality annotated…

计算机视觉与模式识别 · 计算机科学 2024-12-25 Jieyi Tan , Yansheng Li , Sergey A. Bartalev , Shinkarenko Stanislav , Bo Dang , Yongjun Zhang , Liangqi Yuan , Wei Chen

With an increasing number of smart devices like internet of things (IoT) devices deployed in the field, offloadingtraining of neural networks (NNs) to a central server becomes more and more infeasible. Recent efforts toimprove users'…

机器学习 · 计算机科学 2023-07-19 Kilian Pfeiffer , Martin Rapp , Ramin Khalili , Jörg Henkel

Federated Graph Learning (FGL) has emerged as a promising paradigm for breaking data silos among distributed private graphs. In practical scenarios involving heterogeneous distributed graph data, personalized Federated Graph Learning (pFGL)…

机器学习 · 计算机科学 2025-08-07 Guochen Yan , Xunkai Li , Luyuan Xie , Qingni Shen , Yuejian Fang , Zhonghai Wu

Graph data are ubiquitous in the real world. Graph learning (GL) tries to mine and analyze graph data so that valuable information can be discovered. Existing GL methods are designed for centralized scenarios. However, in practical…

机器学习 · 计算机科学 2021-05-10 Chuan Chen , Weibo Hu , Ziyue Xu , Zibin Zheng

With its capability to deal with graph data, which is widely found in practical applications, graph neural networks (GNNs) have attracted significant research attention in recent years. As societies become increasingly concerned with the…

分布式、并行与集群计算 · 计算机科学 2022-12-22 Rui Liu , Pengwei Xing , Zichao Deng , Anran Li , Cuntai Guan , Han Yu

Graph Neural Networks (GNNs) have emerged as the de facto standard for representation learning on graphs, owing to their ability to effectively integrate graph topology and node attributes. However, the inherent suboptimal nature of node…

机器学习 · 计算机科学 2023-12-27 Zhiyao Zhou , Sheng Zhou , Bochao Mao , Xuanyi Zhou , Jiawei Chen , Qiaoyu Tan , Daochen Zha , Yan Feng , Chun Chen , Can Wang

With the frequent happening of privacy leakage and the enactment of privacy laws across different countries, data owners are reluctant to directly share their raw data and labels with any other party. In reality, a lot of these raw data are…

机器学习 · 计算机科学 2023-01-31 Xiaolong Xu , Lingjuan Lyu , Yihong Dong , Yicheng Lu , Weiqiang Wang , Hong Jin

Resting-state functional magnetic resonance imaging (rs-fMRI) offers a non-invasive approach to examining abnormal brain connectivity associated with brain disorders. Graph neural network (GNN) gains popularity in fMRI representation…

定量方法 · 定量生物学 2023-08-22 Junhao Zhang , Qianqian Wang , Xiaochuan Wang , Lishan Qiao , Mingxia Liu

Federated learning (FL) is severely challenged by non-independent and identically distributed (non-IID) client data, a problem that degrades global model performance, especially in multimodal perception settings. Conventional methods often…

计算机视觉与模式识别 · 计算机科学 2026-03-23 Jing Liu , Zhengliang Guo , Yan Wang , Xiaoguang Zhu , Yao Du , Zehua Wang , Victor C. M. Leung

Graph Neural Networks (GNNs) have become a prominent approach for learning from graph-structured data. However, their effectiveness can be significantly compromised when the graph structure is suboptimal. To address this issue, Graph…

机器学习 · 计算机科学 2025-02-20 Shen Han , Zhiyao Zhou , Jiawei Chen , Zhezheng Hao , Sheng Zhou , Gang Wang , Yan Feng , Chun Chen , Can Wang

Federated learning shows promise as a privacy-preserving collaborative learning technique. Existing heterogeneous federated learning mainly focuses on skewing the label distribution across clients. However, most approaches suffer from…

机器学习 · 计算机科学 2023-12-18 Shunxin Guo , Hongsong Wang , Xin Geng