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Related papers: FedGRec: Dynamic Spatio-Temporal Federated Graph L…

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Graphs are widely used to model relational data. As graphs are getting larger and larger in real-world scenarios, there is a trend to store and compute subgraphs in multiple local systems. For example, recently proposed \emph{subgraph…

Machine Learning · Computer Science 2024-01-30 Zaixi Zhang , Qingyong Hu , Yang Yu , Weibo Gao , Qi Liu

Personalized Federated Graph Learning (pFGL) facilitates the decentralized training of Graph Neural Networks (GNNs) without compromising privacy while accommodating personalized requirements for non-IID participants. In cross-domain…

Machine Learning · Computer Science 2024-10-29 Zihan Tan , Guancheng Wan , Wenke Huang , Mang Ye

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

News recommendation is critical for personalized news access. Most existing news recommendation methods rely on centralized storage of users' historical news click behavior data, which may lead to privacy concerns and hazards. Federated…

Information Retrieval · Computer Science 2023-05-31 Jingwei Yi , Fangzhao Wu , Chuhan Wu , Ruixuan Liu , Guangzhong Sun , Xing Xie

The sharing of external data has become a strong demand of financial institutions, but the privacy issue has led to the difficulty of interconnecting different platforms and the low degree of data openness. To effectively solve the privacy…

Machine Learning · Computer Science 2025-05-02 Zhizhong Tan , Jiexin Zheng , Kevin Qi Zhang , Wenyong Wang

Preserving privacy and reducing communication costs for edge users pose significant challenges in recommendation systems. Although federated learning has proven effective in protecting privacy by avoiding data exchange between clients and…

Machine Learning · Computer Science 2023-11-01 Lin Wang , Zhichao Wang , Xi Leng , Xiaoying Tang

The increasing emphasis on privacy in recommendation systems has led to the adoption of Federated Learning (FL) as a privacy-preserving solution, enabling collaborative training without sharing user data. While Federated Recommendation…

Machine Learning · Computer Science 2025-08-19 Jaehyung Lim , Wonbin Kweon , Woojoo Kim , Junyoung Kim , Seongjin Choi , Dongha Kim , Hwanjo Yu

Recommender systems have become prosperous nowadays, designed to predict users' potential interests in items by learning embeddings. Recent developments of the Graph Neural Networks~(GNNs) also provide recommender systems with powerful…

Information Retrieval · Computer Science 2021-11-23 Zhiwei Liu , Liangwei Yang , Ziwei Fan , Hao Peng , Philip S. Yu

Graphs are crucial for modeling relational and biological data. As datasets grow larger in real-world scenarios, the risk of exposing sensitive information increases, making privacy-preserving training methods like federated learning (FL)…

Machine Learning · Computer Science 2025-01-24 Emir Ceyani , Han Xie , Baturalp Buyukates , Carl Yang , Salman Avestimehr

Federated Graph Learning (FGL) aims to learn graph learning models over graph data distributed in multiple data owners, which has been applied in various applications such as social recommendation and financial fraud detection. Inherited…

Machine Learning · Computer Science 2024-08-20 Xingbo Fu , Zihan Chen , Binchi Zhang , Chen Chen , Jundong Li

Methods for training models on graphs distributed across multiple clients have recently grown in popularity, due to the size of these graphs as well as regulations on keeping data where it is generated. However, the cross-client edges…

Machine Learning · Computer Science 2023-12-19 Yuhang Yao , Weizhao Jin , Srivatsan Ravi , Carlee Joe-Wong

Building a graph neural network (GNN)-based recommender system without violating user privacy proves challenging. Existing methods can be divided into federated GNNs and decentralized GNNs. But both methods have undesirable effects, i.e.,…

Information Retrieval · Computer Science 2023-08-17 Xiaolin Zheng , Zhongyu Wang , Chaochao Chen , Jiashu Qian , Yao Yang

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

Federated recommender systems (FedRS) have emerged as a paradigm for protecting user privacy by keeping interaction data on local devices while coordinating model training through a central server. However, most existing federated…

Information Retrieval · Computer Science 2026-03-13 Liang Qu , Jianxin Li , Wei Yuan , Shangfei Zheng , Lu Chen , Chengfei Liu , Hongzhi Yin

As a new distributed graph learning paradigm, Federated Graph Learning (FGL) facilitates collaborative model training across local systems while preserving data privacy. We review existing FGL approaches and categorize their optimization…

Machine Learning · Computer Science 2025-08-15 Zekai Chen , Xunkai Li , Yinlin Zhu , Rong-Hua Li , Guoren Wang

Federated Graph Learning (FGL) is a distributed machine learning paradigm based on graph neural networks, enabling secure and collaborative modeling of local graph data among clients. However, label noise can degrade the global model's…

Machine Learning · Computer Science 2024-12-02 De Li , Haodong Qian , Qiyu Li , Zhou Tan , Zemin Gan , Jinyan Wang , Xianxian Li

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

Recommender systems can be privacy-sensitive. To protect users' private historical interactions, federated learning has been proposed in distributed learning for user representations. Using federated recommender (FedRec) systems, users can…

Information Retrieval · Computer Science 2023-12-29 Qi Hu , Yangqiu Song

Conventional recommender systems are required to train the recommendation model using a centralized database. However, due to data privacy concerns, this is often impractical when multi-parties are involved in recommender system training.…

Cryptography and Security · Computer Science 2024-08-28 Peihua Mai , Yan Pang

Federated learning is an emerging paradigm for decentralized training of machine learning models on distributed clients, without revealing the data to the central server. Most existing works have focused on horizontal or vertical data…

Machine Learning · Computer Science 2024-04-16 Jaeyeon Jang , Diego Klabjan , Veena Mendiratta , Fanfei Meng