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Financial crime detection using graph learning improves financial safety and efficiency. However, criminals may commit financial crimes across different institutions to avoid detection, which increases the difficulty of detection for…

Cryptography and Security · Computer Science 2023-10-13 Zhirui Pan , Guangzhong Wang , Zhaoning Li , Lifeng Chen , Yang Bian , Zhongyuan Lai

Graph Neural Networks (GNNs) are the first choice methods for graph machine learning problems thanks to their ability to learn state-of-the-art level representations from graph-structured data. However, centralizing a massive amount of…

Machine Learning · Computer Science 2021-06-08 Chaoyang He , Emir Ceyani , Keshav Balasubramanian , Murali Annavaram , Salman Avestimehr

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

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

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…

Quantitative Methods · Quantitative Biology 2023-08-22 Junhao Zhang , Qianqian Wang , Xiaochuan Wang , Lishan Qiao , Mingxia Liu

Federated Learning (FL) on graph-structured data typically faces non-IID challenges, particularly in scenarios where each client holds a distinct subgraph sampled from a global graph. In this paper, we introduce Federated learning with…

Machine Learning · Computer Science 2025-10-01 Wei Zhuo , Zhaohuan Zhan , Han Yu

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

Federated graph learning (FGL) has recently emerged as a promising privacy-preserving paradigm that enables distributed graph learning across multiple data owners. A critical privacy concern in federated learning is whether an adversary can…

Machine Learning · Computer Science 2026-01-28 Shuyue Wei , Wantong Chen , Tongyu Wei , Chen Gong , Yongxin Tong , Lizhen Cui

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…

Machine Learning · Computer Science 2024-05-15 Nan Cui , Xiuling Wang , Wendy Hui Wang , Violet Chen , Yue Ning

Federated Semi-Supervised Learning (FSSL) aims to collaboratively train a global model across clients by leveraging partially-annotated local data in a privacy-preserving manner. In FSSL, data heterogeneity is a challenging issue, which…

Machine Learning · Computer Science 2026-02-25 Duowen Chen , Yan 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

Federated graph learning (FGL) has gained significant attention for enabling heterogeneous clients to process their private graph data locally while interacting with a centralized server, thus maintaining privacy. However, graph data on…

Machine Learning · Computer Science 2024-12-19 Ruyue Liu , Rong Yin , Xiangzhen Bo , Xiaoshuai Hao , Xingrui Zhou , Yong Liu , Can Ma , Weiping Wang

Graphs have been widely used in data mining and machine learning due to their unique representation of real-world objects and their interactions. As graphs are getting bigger and bigger nowadays, it is common to see their subgraphs…

Machine Learning · Computer Science 2021-11-09 Ke Zhang , Carl Yang , Xiaoxiao Li , Lichao Sun , Siu Ming Yiu

With the advancement of edge computing, federated learning (FL) displays a bright promise as a privacy-preserving collaborative learning paradigm. However, one major challenge for FL is the data heterogeneity issue, which refers to the…

Machine Learning · Computer Science 2025-05-27 Huan Wang , Haoran Li , Huaming Chen , Jun Yan , Lijuan Wang , Jiahua Shi , Shiping Chen , Jun Shen

Over the past few years, federated learning has become widely used in various classical machine learning fields because of its collaborative ability to train data from multiple sources without compromising privacy. However, in the area of…

Machine Learning · Computer Science 2024-03-26 Hao Song , Jiacheng Yao , Zhengxi Li , Shaocong Xu , Shibo Jin , Jiajun Zhou , Chenbo Fu , Qi Xuan , Shanqing Yu

Graph-based semi-supervised node classification (GraphSSC) has wide applications, ranging from networking and security to data mining and machine learning, etc. However, existing centralized GraphSSC methods are impractical to solve many…

Machine Learning · Computer Science 2020-12-09 Binghui Wang , Ang Li , Hai Li , Yiran Chen

Federated learning achieves joint training of deep models by connecting decentralized data sources, which can significantly mitigate the risk of privacy leakage. However, in a more general case, the distributions of labels among clients are…

Machine Learning · Computer Science 2022-12-20 Tao Sheng , Chengchao Shen , Yuan Liu , Yeyu Ou , Zhe Qu , Jianxin Wang

Federated learning is essential for enabling collaborative model training across decentralized data sources while preserving data privacy and security. This approach mitigates the risks associated with centralized data collection and…

Machine Learning · Computer Science 2025-03-14 Daoyuan Li , Zuyuan Yang , Shengli Xie

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

Graph machine learning has gained great attention in both academia and industry recently. Most of the graph machine learning models, such as Graph Neural Networks (GNNs), are trained over massive graph data. However, in many real-world…

Machine Learning · Computer Science 2022-10-19 Xingbo Fu , Binchi Zhang , Yushun Dong , Chen Chen , Jundong Li