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Federated Graph Learning (FGL) empowers clients to collaboratively train Graph neural networks (GNNs) in a distributed manner while preserving data privacy. However, FGL methods usually require that the graph data owned by all clients is…

Machine Learning · Computer Science 2025-05-27 Zihan Chen , Xingbo Fu , Yushun Dong , Jundong Li , Cong Shen

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…

Machine Learning · Computer Science 2023-12-27 Zhiyao Zhou , Sheng Zhou , Bochao Mao , Xuanyi Zhou , Jiawei Chen , Qiaoyu Tan , Daochen Zha , Yan Feng , Chun Chen , Can Wang

The incredible development of federated learning (FL) has benefited various tasks in the domains of computer vision and natural language processing, and the existing frameworks such as TFF and FATE has made the deployment easy in real-world…

Machine Learning · Computer Science 2022-08-02 Zhen Wang , Weirui Kuang , Yuexiang Xie , Liuyi Yao , Yaliang Li , Bolin Ding , Jingren Zhou

In the era of big data applications, Federated Graph Learning (FGL) has emerged as a prominent solution that reconcile the tradeoff between optimizing the collective intelligence between decentralized datasets holders and preserving…

Machine Learning · Computer Science 2025-07-23 Zhengyu Wu , Xunkai Li , Yinlin Zhu , Zekai Chen , Guochen Yan , Yanyu Yan , Hao Zhang , Yuming Ai , Xinmo Jin , Rong-Hua Li , Guoren Wang

Federated graph learning (FGL) enables collaborative training of graph neural networks (GNNs) across decentralized subgraphs without exposing raw data. While existing FGL methods often achieve high overall accuracy, we show that this…

Machine Learning · Computer Science 2026-01-26 Zekai Chen , Kairui Yang , Xunkai Li , Henan Sun , Zhihan Zhang , Jia Li , Qiangqiang Dai , Rong-Hua Li , Guoren Wang

Standard Federated Learning (FL) techniques are limited to clients with identical network architectures. This restricts potential use-cases like cross-platform training or inter-organizational collaboration when both data privacy and…

Machine Learning · Computer Science 2022-01-24 Or Litany , Haggai Maron , David Acuna , Jan Kautz , Gal Chechik , Sanja Fidler

While Graph Neural Networks (GNNs) excel on graph-structured data, their performance is fundamentally limited by the quality of the observed graph, which often contains noise, missing links, or structural properties misaligned with GNNs'…

Machine Learning · Computer Science 2026-01-14 Hao Deng , Bo Liu

Personalized subgraph Federated Learning (FL) is a task that customizes Graph Neural Networks (GNNs) to individual client needs, accommodating diverse data distributions. However, applying hypernetworks in FL, while aiming to facilitate…

Machine Learning · Computer Science 2024-06-03 Wenfei Liang , Yanan Zhao , Rui She , Yiming Li , Wee Peng Tay

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

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…

Machine Learning · Computer Science 2025-02-20 Shen Han , Zhiyao Zhou , Jiawei Chen , Zhezheng Hao , Sheng Zhou , Gang Wang , Yan Feng , Chun Chen , Can Wang

Recently, Federated Graph Learning (FGL) has attracted significant attention as a distributed framework based on graph neural networks, primarily due to its capability to break data silos. Existing FGL studies employ community split on the…

Machine Learning · Computer Science 2024-01-23 Xunkai Li , Zhengyu Wu , Wentao Zhang , Henan Sun , Rong-Hua Li , Guoren Wang

Graph learning has a wide range of applications in many scenarios, which require more need for data privacy. Federated learning is an emerging distributed machine learning approach that leverages data from individual devices or data centers…

Machine Learning · Computer Science 2023-07-20 Peilin Liu , Yanni Tang , Mingyue Zhang , Wu Chen

Graph neural networks (GNN) have been widely deployed in real-world networked applications and systems due to their capability to handle graph-structured data. However, the growing awareness of data privacy severely challenges the…

Machine Learning · Computer Science 2024-02-20 Qiying Pan , Yifei Zhu , Lingyang Chu

Graphs are widely used to represent the relations among entities. When one owns the complete data, an entire graph can be easily built, therefore performing analysis on the graph is straightforward. However, in many scenarios, it is…

Machine Learning · Computer Science 2023-01-27 Runze Lei , Pinghui Wang , Junzhou Zhao , Lin Lan , Jing Tao , Chao Deng , Junlan Feng , Xidian Wang , Xiaohong Guan

Recent advances in graph machine learning have shifted to data-centric paradigms, driven by two emerging fields: (1) Federated graph learning (FGL) enables multi-client collaboration but faces challenges from data and task heterogeneity,…

Machine Learning · Computer Science 2025-11-17 Yinlin Zhu , Xunkai Li , Jishuo Jia , Miao Hu , Di Wu , Meikang Qiu

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…

Networking and Internet Architecture · Computer Science 2023-09-29 Wenxuan Ye , Chendi Qian , Xueli An , Xueqiang Yan , Georg Carle

Graph Neural Networks (GNNs) have experienced rapid advancements in recent years due to their ability to learn meaningful representations from graph data structures. Federated Learning (FL) has emerged as a viable machine learning approach…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-06-17 Pranjal Naman , Yogesh Simmhan

Federated Graph Learning (FGL) is a distributed learning paradigm that enables collaborative training over large-scale subgraphs located on multiple local systems. However, most existing FGL approaches rely on synchronous communication,…

Machine Learning · Computer Science 2025-08-06 Zhongzheng Yuan , Lianshuai Guo , Xunkai Li , Yinlin Zhu , Wenyu Wang , Meixia Qu

Graph Neural Networks (GNNs) have emerged as powerful tools for analyzing and learning representations from graph-structured data. A crucial prerequisite for the outstanding performance of GNNs is the availability of complete graph…

Machine Learning · Computer Science 2024-08-12 Peng Yuan , Peng Tang

Statistical heterogeneity in Federated Learning (FL) often leads to negative transfer, where a single global model fails to serve diverse client distributions. Personalized federated learning (pFL) aims to address this by tailoring models…

Machine Learning · Computer Science 2026-03-31 Brianna Mueller , W. Nick Street