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Given a set of financial transactions (who buys from whom, when, and for how much), as well as prior information from buyers and sellers, how can we find fraudulent transactions? If we have labels for some transactions for known types of…

Machine Learning · Computer Science 2025-10-07 Robson L. F. Cordeiro , Meng-Chieh Lee , Christos Faloutsos

Identity theft is a major problem for credit lenders when there's not enough data to corroborate a customer's identity. Among super-apps large digital platforms that encompass many different services this problem is even more relevant;…

In recent years, machine learning algorithms have become ubiquitous in a multitude of high-stakes decision-making applications. The unparalleled ability of machine learning algorithms to learn patterns from data also enables them to…

Machine Learning · Computer Science 2022-07-14 José Pombal , André F. Cruz , João Bravo , Pedro Saleiro , Mário A. T. Figueiredo , Pedro Bizarro

Detecting fraudulent activities in financial and e-commerce transaction networks is crucial. One effective method for this is Densest Subgraph Discovery (DSD). However, deploying DSD methods in production systems faces substantial…

Databases · Computer Science 2025-04-15 Jiaxin Jiang , Siyuan Yao , Yuchen Li , Qiange Wang , Bingsheng He , Min Chen

Fraudulent transactions and how to detect them remain a significant problem for financial institutions around the world. The need for advanced fraud detection systems to safeguard assets and maintain customer trust is paramount for…

Machine Learning · Computer Science 2023-12-22 Tomisin Awosika , Raj Mani Shukla , Bernardi Pranggono

Recently, financial institutes have been dealing with an increase in financial crimes. In this context, financial services firms started to improve their vigilance and use new technologies and approaches to identify and predict financial…

Machine Learning · Computer Science 2021-05-25 Zeinab Rouhollahi

We describe challenges in the risk management of smart card based electronic cash industry and describe a method to evaluate the effectiveness of distributed intelligence on the smart card. More specifically, we discuss the evaluation of…

Computers and Society · Computer Science 2013-01-30 Kazuo J. Ezawa , Greg Napiorkowski , Mariusz Kossarski

Frauds severely hurt many kinds of Internet businesses. Group-based fraud detection is a popular methodology to catch fraudsters who unavoidably exhibit synchronized behaviors. We combine both graph-based features (e.g. cluster density) and…

Cryptography and Security · Computer Science 2018-06-26 Yikun Ban , Xin Liu , Tianyi Zhang , Ling Huang , Yitao Duan , Xue Liu , Wei Xu

Financial forensics has an important role in the field of finance to detect and investigate the occurrence of finance related crimes like money laundering. However, as with other forms of criminal activities, the forensics analysis of such…

Cryptography and Security · Computer Science 2023-03-10 Jonathan Pan

In today's competitive scenario in corporate world, "Customer Retention" strategy in Customer Relationship Management (CRM) is an increasingly pressed issue. Data mining techniques play a vital role in better CRM. This paper attempts to…

Databases · Computer Science 2012-05-08 Md. Rashid Farooqi , Khalid Raza

Since the inception of permissionless blockchains with Bitcoin in 2008, it became apparent that their most well-suited use case is related to making the financial system and its advantages available to everyone seamlessly without depending…

General Finance · Quantitative Finance 2023-06-16 Georgios Palaiokrassas , Sandro Scherrers , Iason Ofeidis , Leandros Tassiulas

Underground online forums are platforms that enable trades of illicit services and stolen goods. Carding forums, in particular, are known for being focused on trading financial information. However, little evidence exists about the sellers…

Cryptography and Security · Computer Science 2017-01-25 Andreas Haslebacher , Jeremiah Onaolapo , Gianluca Stringhini

Phishing detection on Ethereum has increasingly leveraged advanced machine learning techniques to identify fraudulent transactions. However, limited attention has been given to understanding the effectiveness of feature selection strategies…

Cryptography and Security · Computer Science 2025-04-28 Ahod Alghuried , Abdulaziz Alghamdi , Ali Alkinoon , Soohyeon Choi , Manar Mohaisen , David Mohaisen

Donations to charity-based crowdfunding environments have been on the rise in the last few years. Unsurprisingly, deception and fraud in such platforms have also increased, but have not been thoroughly studied to understand what…

Computers and Society · Computer Science 2020-07-01 Beatrice Perez , Sara R. Machado , Jerone T. A. Andrews , Nicolas Kourtellis

Credit scoring is vital in the financial industry, assessing the risk of lending to credit card applicants. Traditional credit scoring methods face challenges with large datasets and data imbalance between creditworthy and non-creditworthy…

Computational Engineering, Finance, and Science · Computer Science 2024-09-26 Kejian Tong , Zonglin Han , Yanxin Shen , Yujian Long , Yijing Wei

There is a growing demand for explainable, transparent, and data-driven models within the domain of fraud detection. Decisions made by fraud detection models need to be explainable in the event of a customer dispute. Additionally, the…

Machine Learning · Computer Science 2023-12-04 Samantha Visbeek , Erman Acar , Floris den Hengst

This study addresses the actual behavior of the credit-card fraud detection environment where financial transactions containing sensitive data must not be amassed in an enormous amount to conduct learning. We introduce a new adaptive…

Machine Learning · Computer Science 2021-08-09 Armin Sadreddin , Samira Sadaoui

Credit investigation is critical for financial services. Whereas, traditional methods are often restricted as the employed data hardly provide sufficient, timely and reliable information. With the prevalence of smart mobile devices,…

Machine Learning · Computer Science 2019-10-22 Xiao Han , Ruiqing Ding , Leye Wang , Hailiang Huang

The rise of smartphones has led to a significant increase in the usage of mobile payments. Mobile payments allow individuals to access financial resources and make transactions through their mobile devices while on the go. However, the…

Cryptography and Security · Computer Science 2023-04-20 Hosam Alamleh , Ali Abdullah S. AlQahtani , Baker Al Smadi

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