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Federated graph learning is a widely recognized technique that promotes collaborative training of graph neural networks (GNNs) by multi-client graphs.However, existing approaches heavily rely on the communication of model parameters or…

Machine Learning · Computer Science 2025-05-06 Hao Zhang , Xunkai Li , Yinlin Zhu , Lianglin Hu

Federated graph learning (FGL) has emerged as a promising paradigm for collaborative graph representation learning, enabling multiple parties to jointly train models while preserving data privacy. However, most existing approaches assume…

Machine Learning · Computer Science 2026-01-01 Zhengyu Wu , Guang Zeng , Huilin Lai , Daohan Su , Jishuo Jia , Yinlin Zhu , Xunkai Li , Rong-Hua Li , Guoren Wang , Chenghu Zhou

Recent advances in CV and NLP have inspired researchers to develop general-purpose graph foundation models through pre-training across diverse domains. However, a fundamental challenge arises from the substantial differences in graph…

Social and Information Networks · Computer Science 2025-06-02 Shuo Wang , Bokui Wang , Zhixiang Shen , Boyan Deng , Zhao Kang

Federated Graph Learning (FGL) has demonstrated the advantage of training a global Graph Neural Network (GNN) model across distributed clients using their local graph data. Unlike Euclidean data (\eg, images), graph data is composed of…

Machine Learning · Computer Science 2024-12-30 Xianjun Gao , Jianchun Liu , Hongli Xu , Shilong Wang , Liusheng Huang

In recent years, Federated Graph Learning (FGL) has gained significant attention for its distributed training capabilities in graph-based machine intelligence applications, mitigating data silos while offering a new perspective for…

Machine Learning · Computer Science 2025-04-15 Zhengyu Wu , Xunkai Li , Yinlin Zhu , Rong-Hua Li , Guoren Wang , Chenghu Zhou

Dynamic graphs are ubiquitous in real-world systems, and building generalizable dynamic Graph Foundation Models has become a frontier in graph learning. However, dynamic graphs from different domains pose fundamental challenges to unified…

Machine Learning · Computer Science 2026-05-14 Haonan Yuan , Qingyun Sun , Junhua Shi , Xingcheng Fu , Jianxin Li , Philip S. Yu

Federated Graph Learning (FGL) aims to collaboratively and privately optimize graph models on divergent data for different tasks. A critical challenge in FGL is to enable effective yet efficient federated optimization against multifaceted…

Machine Learning · Computer Science 2024-11-05 Zhuoning Guo , Ruiqian Han , Hao Liu

Federated graph learning (FGL) is a promising distributed training paradigm for graph neural networks across multiple local systems without direct data sharing. This approach inherently involves large-scale distributed graph processing,…

Machine Learning · Computer Science 2025-01-22 Xunkai Li , Yinlin Zhu , Boyang Pang , Guochen Yan , Yeyu Yan , Zening Li , Zhengyu Wu , Wentao Zhang , Rong-Hua Li , Guoren Wang

Foundation models have shown remarkable cross-domain generalization in language and vision, inspiring the development of graph foundation models (GFMs). However, existing GFMs typically assume centralized access to multi-domain graphs,…

Machine Learning · Computer Science 2025-10-10 Zhengyu Wu , Yinlin Zhu , Xunkai Li , Ziang Qiu , Rong-Hua Li , Guoren Wang , Chenghu Zhou

Recent studies of federated graph foundational models (FedGFMs) break the idealized and untenable assumption of having centralized data storage to train graph foundation models, and accommodate the reality of distributed, privacy-restricted…

Machine Learning · Computer Science 2026-01-30 Yinlin Zhu , Di Wu , Xianzhi Zhang , Yuming Ai , Xunkai Li , Miao Hu , Guocong Quan

Managing evolving graph data presents substantial challenges in storage and privacy, and training graph neural networks (GNNs) on such data often leads to catastrophic forgetting, impairing performance on earlier tasks. Despite existing…

Machine Learning · Computer Science 2025-05-29 Yinlin Zhu , Miao Hu , Di Wu

Foundation models have emerged as critical components in a variety of artificial intelligence applications, and showcase significant success in natural language processing and several other domains. Meanwhile, the field of graph machine…

Machine Learning · Computer Science 2025-03-11 Jiawei Liu , Cheng Yang , Zhiyuan Lu , Junze Chen , Yibo Li , Mengmei Zhang , Ting Bai , Yuan Fang , Lichao Sun , Philip S. Yu , Chuan Shi

Graph foundation models (GFM) aim to acquire transferable knowledge by pre-training on diverse graphs, which can be adapted to various downstream tasks. However, domain shift in graphs is inherently two-dimensional: graphs differ not only…

Computation and Language · Computer Science 2026-03-12 Xingtong Yu , Shenghua Ye , Ruijuan Liang , Chang Zhou , Hong Cheng , Xinming Zhang , Yuan Fang

Cross-domain recommendation (CDR) offers a promising solution to the data sparsity problem by enabling knowledge transfer across source and target domains. However, many recent CDR models overlook crucial issues such as privacy as well as…

Machine Learning · Computer Science 2024-11-05 Ziqi Yang , Zhaopeng Peng , Zihui Wang , Jianzhong Qi , Chaochao Chen , Weike Pan , Chenglu Wen , Cheng Wang , Xiaoliang Fan

The demand for data privacy has led to the development of frameworks like Federated Graph Learning (FGL), which facilitate decentralized model training. However, a significant operational challenge in such systems is adhering to the right…

Machine Learning · Computer Science 2025-08-05 Yuming Ai , Xunkai Li , Jiaqi Chao , Bowen Fan , Zhengyu Wu , Yinlin Zhu , Rong-Hua Li , Guoren Wang

Graph Federated Learning (GFL) enables collaborative representation learning across distributed subgraphs while preserving privacy. However, heterogeneity remains a critical challenge, as subgraphs across clients typically differ…

Machine Learning · Computer Science 2026-05-08 Wentao Yu , Bo Han , Jie Yang , Chen Gong

Graph Neural Network (GNN) research is rapidly growing thanks to the capacity of GNNs in learning distributed representations from graph-structured data. However, centralizing a massive amount of real-world graph data for GNN training is…

Federated Graph Learning (FGL) is a distributed machine learning paradigm that enables collaborative training on large-scale subgraphs across multiple local systems. Existing FGL studies fall into two categories: (i) FGL Optimization, which…

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

Federated Graph Learning (FGL) is an emerging technology that enables clients to collaboratively train powerful Graph Neural Networks (GNNs) in a distributed manner without exposing their private data. Nevertheless, FGL still faces the…

Machine Learning · Computer Science 2024-08-22 Longwen Wang , Jianchun Liu , Zhi Liu , Jinyang Huang

Federated Graph Learning (FGL) is tasked with training machine learning models, such as Graph Neural Networks (GNNs), for multiple clients, each with its own graph data. Existing methods usually assume that each client has both node…

Machine Learning · Computer Science 2024-11-14 Xingbo Fu , Song Wang , Yushun Dong , Binchi Zhang , Chen Chen , Jundong Li
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