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Graph-based fraud detection has heretofore received considerable attention. Owning to the great success of Graph Neural Networks (GNNs), many approaches adopting GNNs for fraud detection has been gaining momentum. However, most existing…

Machine Learning · Computer Science 2022-10-25 Zhixun Li , Dingshuo Chen , Qiang Liu , Shu Wu

Online financial services constitute an essential component of contemporary web ecosystems, yet their openness introduces substantial exposure to fraud that harms vulnerable users and weakens trust in digital finance. Such threats have…

Machine Learning · Computer Science 2026-02-05 Rongkun Cui , Nana Zhang , Kun Zhu , Qi Zhang

Credit card is one of the most extensive methods of instalment for both online and offline mode of payment for electronic transactions in recent times. credit cards invention has provided significant ease in electronic transactions.…

Machine Learning · Computer Science 2024-09-23 Sourav Verma , Joydip Dhar

The e-commerce share in the global retail spend is showing a steady increase over the years indicating an evident shift of consumer attention from bricks and mortar to clicks in retail sector. In recent years, online marketplaces have…

Computers and Society · Computer Science 2018-05-02 Shini Renjith

The Automobile Insurance Fraud is one of the main challenges for insurance companies. This form of fraud is performed either opportunistic or professional occurring through group cooperation that leads to greater financial losses, while…

Social and Information Networks · Computer Science 2018-06-20 Arezo Bodaghi , Babak Teimourpour

The graph-based model can help to detect suspicious fraud online. Owing to the development of Graph Neural Networks~(GNNs), prior research work has proposed many GNN-based fraud detection frameworks based on either homogeneous graphs or…

Social and Information Networks · Computer Science 2020-07-03 Zhiwei Liu , Yingtong Dou , Philip S. Yu , Yutong Deng , Hao Peng

Graph neural networks (GNNs) have emerged as an effective tool for fraud detection, identifying fraudulent users, and uncovering malicious behaviors. However, attacks against GNN-based fraud detectors and their risks have rarely been…

Machine Learning · Computer Science 2025-04-16 Jinhyeok Choi , Heehyeon Kim , Joyce Jiyoung Whang

In recent years, phishing scams have become the crime type with the largest money involved on Ethereum, the second-largest blockchain platform. Meanwhile, graph neural network (GNN) has shown promising performance in various node…

Machine Learning · Computer Science 2021-06-21 Shucheng Li , Fengyuan Xu , Runchuan Wang , Sheng Zhong

Card payment fraud is a serious problem, and a roadblock for an optimally functioning digital economy, with cards (Debits and Credit) being the most popular digital payment method across the globe. Despite the occurrence of fraud could be…

Cryptography and Security · Computer Science 2020-12-01 Bemali Wickramanayake , Dakshi Kapugama Geeganage , Chun Ouyang , Yue Xu

Detecting fraudulent transactions is an essential component to control risk in e-commerce marketplaces. Apart from rule-based and machine learning filters that are already deployed in production, we want to enable efficient real-time…

Machine Learning · Computer Science 2022-08-25 Mingxuan Lu , Zhichao Han , Susie Xi Rao , Zitao Zhang , Yang Zhao , Yinan Shan , Ramesh Raghunathan , Ce Zhang , Jiawei Jiang

This study proposes a credit card fraud detection method based on Heterogeneous Graph Neural Network (HGNN) to address fraud in complex transaction networks. Unlike traditional machine learning methods that rely solely on numerical features…

Machine Learning · Computer Science 2025-04-14 Qiuwu Sha , Tengda Tang , Xinyu Du , Jie Liu , Yixian Wang , Yuan Sheng

In recent years, financial fraud detection systems have become very efficient at detecting fraud, which is a major threat faced by e-commerce platforms. Such systems often include machine learning-based algorithms aimed at detecting and…

Cryptography and Security · Computer Science 2023-12-05 Chen Doytshman , Satoru Momiyama , Inderjeet Singh , Yuval Elovici , Asaf Shabtai

Financial transaction fraud prevention faces challenges such as complex relationship structures, concealed behavioral patterns, and dynamically changing data distribution. Discrimination models relying solely on independent sample features…

Machine Learning · Computer Science 2026-05-14 Yunfei Nie , Jiawei Wang , Ruobing Yan , Yuhan Wang , Zouxiaowei Ma , Yilun Wu

Healthcare insurance provides financial support to access medical services for patients while ensuring timely and guaranteed payment for providers. Insurance fraud poses a significant challenge to insurance companies and policyholders,…

Cryptography and Security · Computer Science 2024-07-26 Md Al Amin , Rushabh Shah , Hemanth Tummala , Indrajit Ray

With an increase in financial accounting fraud in the current economic scenario experienced, financial accounting fraud detection has become an emerging topics of great importance for academics, research and industries. Financial fraud is a…

Other Computer Science · Computer Science 2013-09-05 H. Lookman Sithic , T. Balasubramanian

As e-commerce platforms develop, fraudulent activities are increasingly emerging, posing significant threats to the security and stability of these platforms. Promotion abuse is one of the fastest-growing types of fraud in recent years and…

Cryptography and Security · Computer Science 2025-10-15 Shaofei Li , Xiao Han , Ziqi Zhang , Minyao Hua , Shuli Gao , Zhenkai Liang , Yao Guo , Xiangqun Chen , Ding Li

The detection of frauds in credit card transactions is a major topic in financial research, of profound economic implications. While this has hitherto been tackled through data analysis techniques, the resemblances between this and other…

Social and Information Networks · Computer Science 2017-06-08 Massimiliano Zanin , Miguel Romance , Santiago Moral , Regino Criado

In the faceless world of the Internet,online fraud is one of the greatest reasons of loss for web merchants.Advanced solutions are needed to protect e businesses from the constant problems of fraud.Many popular fraud detection algorithms…

Networking and Internet Architecture · Computer Science 2010-06-15 P. Srinivasulu , J. Ranga Rao , I. Ramesh Babu

The extensive use of the internet is continuously drifting businesses to incorporate their services in the online environment. One of the first spectrums to embrace this evolution was the banking sector. In fact, the first known online…

Machine Learning · Computer Science 2020-09-15 Arianit Mehana , Krenare Pireva Nuci

Graph-based fraud detection has widespread application in modern industry scenarios, such as spam review and malicious account detection. While considerable efforts have been devoted to designing adequate fraud detectors, the…

Machine Learning · Computer Science 2024-06-18 Kaidi Li , Tianmeng Yang , Min Zhou , Jiahao Meng , Shendi Wang , Yihui Wu , Boshuai Tan , Hu Song , Lujia Pan , Fan Yu , Zhenli Sheng , Yunhai Tong