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Plagiarism detection in programming education faces growing challenges due to increasingly sophisticated obfuscation techniques, particularly automated refactoring-based attacks. While code plagiarism detection systems used in education…

Software Engineering · Computer Science 2025-10-30 Robin Maisch , Larissa Schmid , Timur Sağlam , Nils Niehues

Venezuelan banks have historically made credit card limit adjustment decisions manually through committees. However, since the number of credit card holders in Venezuela is expected to increase in the upcoming months due to economic…

Machine Learning · Computer Science 2025-04-22 Diego Pestana , Enrique Areyan Viqueira

In the age of the Internet, people's lives are increasingly dependent on today's network technology. Maintaining network integrity and protecting the legitimate interests of users is at the heart of network construction. Threat detection is…

Cryptography and Security · Computer Science 2024-02-20 Yulu Gong , Mengran Zhu , Shuning Huo , Yafei Xiang , Hanyi Yu

Credit card fraud is assuming growing proportions as a major threat to the financial position of American household, leading to unpredictable changes in household economic behavior. To solve this problem, in this paper, a new hybrid…

Machine Learning · Computer Science 2025-09-25 Zhuqi Wang , Qinghe Zhang , Zhuopei Cheng

Automated fraud behaviors detection on electronic payment platforms is a tough problem. Fraud users often exploit the vulnerability of payment platforms and the carelessness of users to defraud money, steal passwords, do money laundering,…

Cryptography and Security · Computer Science 2019-09-06 Ruoyu Deng , Na Ruan

Machine learning models often make predictions that bias against certain subgroups of input data. When undetected, machine learning biases can constitute significant financial and ethical implications. Semi-automated tools that involve…

Computers and Society · Computer Science 2020-03-19 Po-Ming Law , Sana Malik , Fan Du , Moumita Sinha

In today's digital world most of the anti-malware tools are signature based which is ineffective to detect advanced unknown malware viz. metamorphic malware. In this paper, we study the frequency of opcode occurrence to detect unknown…

Cryptography and Security · Computer Science 2019-03-08 Sanjay Sharma , C. Rama Krishna , Sanjay K. Sahay

Rapid growth of modern technologies such as internet and mobile computing are bringing dramatically increased e-commerce payments, as well as the explosion in transaction fraud. Meanwhile, fraudsters are continually refining their tricks,…

Cryptography and Security · Computer Science 2018-03-20 Xurui Li , Wei Yu , Tianyu Luwang , Jianbin Zheng , Xuetao Qiu , Jintao Zhao , Lei Xia , Yujiao Li

Accurate prediction of future loan defaults is a critical capability for financial institutions that provide lines of credit. For institutions that issue and manage extensive loan volumes, even a slight improvement in default prediction…

The rapid advancements in artificial intelligence (AI) have presented new opportunities for enhancing efficiency and economic competitiveness across various industries, espcially in banking. Machine learning (ML), as a subset of artificial…

Cryptography and Security · Computer Science 2024-12-09 Ana Kovacevic , Sonja D. Radenkovic , Dragana Nikolic

In the rapidly evolving landscape of digital security, biometric authentication systems, particularly facial recognition, have emerged as integral components of various security protocols. However, the reliability of these systems is…

Computer Vision and Pattern Recognition · Computer Science 2026-04-13 Oleksandr Kuznetsov , Emanuele Frontoni , Luca Romeo , Riccardo Rosati , Andrea Maranesi , Alessandro Muscatello

This paper presents a novel approach to e-commerce payment fraud detection by integrating reinforcement learning (RL) with Large Language Models (LLMs). By framing transaction risk as a multi-step Markov Decision Process (MDP), RL optimizes…

Machine Learning · Computer Science 2025-09-24 Bo Qu , Zhurong Wang , Daisuke Yagi , Zhen Xu , Yang Zhao , Yinan Shan , Frank Zahradnik

Exploring generative model training for synthetic tabular data, specifically in sequential contexts such as credit card transaction data, presents significant challenges. This paper addresses these challenges, focusing on attaining both…

Machine Learning · Computer Science 2024-01-03 Din-Yin Hsieh , Chi-Hua Wang , Guang Cheng

Financial fraud increasingly exploits institutional boundaries: laundering networks distribute transactions across multiple banks because no single institution can observe the full pattern. Federated Learning (FL) enables collaborative…

Cryptography and Security · Computer Science 2026-05-19 Prajwal Panth , Nishant Nigam

Machine learning models are increasingly used in a wide variety of financial settings. The difficulty of understanding the inner workings of these systems, combined with their wide applicability, has the potential to lead to significant new…

Computational Finance · Quantitative Finance 2021-02-10 Samuel N. Cohen , Derek Snow , Lukasz Szpruch

Imbalanced data classification problem has always been a popular topic in the field of machine learning research. In order to balance the samples between majority and minority class. Oversampling algorithm is used to synthesize new minority…

Machine Learning · Computer Science 2019-09-02 Junyi Zou , Jinliang Zhang , Ping Jiang

Motor bearing fault detection (MBFD) is critical for maintaining the reliability and operational efficiency of industrial machinery. Early detection of bearing faults can prevent system failures, reduce operational downtime, and lower…

Machine Learning · Computer Science 2024-10-22 Khoa Tran , Lam Pham , Vy-Rin Nguyen , Ho-Si-Hung Nguyen

Fake images in selfie banking are increasingly becoming a threat. Previously, it was just Photoshop, but now deep learning technologies enable us to create highly realistic fake identities, which fraudsters exploit to bypass biometric…

Cryptography and Security · Computer Science 2025-08-28 Subhrojyoti Mukherjee , Manoranjan Mohanty

Financial crimes fast proliferation and sophistication require novel approaches that provide robust and effective solutions. This paper explores the potential of quantum algorithms in combating financial crimes. It highlights the advantages…

Machine Learning · Computer Science 2024-03-28 Abraham Itzhak Weinberg , Alessio Faccia

With online payment platforms being ubiquitous and important, fraud transaction detection has become the key for such platforms, to ensure user account safety and platform security. In this work, we present a novel method for detecting…

Machine Learning · Computer Science 2020-03-30 Longfei Li , Ziqi Liu , Chaochao Chen , Ya-Lin Zhang , Jun Zhou , Xiaolong Li
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