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相关论文: Fraud Detection Using Optimized Machine Learning T…

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This research explores Cost-Sensitive Learning (CSL) in the fraud detection domain to decrease the fraud class's incorrect predictions and increase its accuracy. Notably, we concentrate on shill bidding fraud that is challenging to detect…

机器学习 · 计算机科学 2020-12-23 Sulaf Elshaar , Samira Sadaoui

Banks utilize credit scoring as an important indicator of financial strength and eligibility for credit. Scoring models aim to assign statistical odds or probabilities for predicting if there is a risk of nonpayment in relation to many…

风险管理 · 定量金融 2023-03-10 Oguz Koc , Omur Ugur , A. Sevtap Kestel

Confronting the substantial challenges of malware detection in cybersecurity necessitates solutions that are both robust and adaptable to the ever-evolving threat environment. The paper introduces Meta Learning Malware Detection (MeLeMaD),…

密码学与安全 · 计算机科学 2026-01-01 Ajvad Haneef K , Karan Kuwar Singh , Madhu Kumar S D

This study evaluates a 40-item mathematics placement examination administered to 198 students using a multi-method framework combining Classical Test Theory, machine learning, and unsupervised clustering. Classical Test Theory analysis…

Financial fraud detection poses a typical challenge characterized by class imbalance, where instances of fraud are extremely rare but can lead to unpredictable economic losses if misidentified. Precisely classifying these critical minority…

机器学习 · 计算机科学 2024-02-14 Lingyun Zhong

We aim at developing and improving the imbalanced business risk modeling via jointly using proper evaluation criteria, resampling, cross-validation, classifier regularization, and ensembling techniques. Area Under the Receiver Operating…

机器学习 · 统计学 2019-03-14 Yan Wang , Xuelei Sherry Ni

Recently, advances in deep learning have been observed in various fields, including computer vision, natural language processing, and cybersecurity. Machine learning (ML) has demonstrated its ability as a potential tool for anomaly…

Phishing attacks are a growing cybersecurity threat, leveraging deceptive techniques to steal sensitive information through malicious websites. To combat these attacks, this paper introduces PhishGuard, an optimal custom ensemble model…

密码学与安全 · 计算机科学 2024-10-01 Md Sultanul Islam Ovi , Md. Hasibur Rahman , Mohammad Arif Hossain

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…

密码学与安全 · 计算机科学 2019-03-08 Sanjay Sharma , C. Rama Krishna , Sanjay K. Sahay

The growing cybersecurity threats make it essential to use high-quality data to train Machine Learning (ML) models for network traffic analysis, without noisy or missing data. By selecting the most relevant features for cyber-attack…

密码学与安全 · 计算机科学 2024-07-09 João Vitorino , Miguel Silva , Eva Maia , Isabel Praça

Machine learning classifiers often stumble over imbalanced datasets where classes are not equally represented. This inherent bias towards the majority class may result in low accuracy in labeling minority class. Imbalanced learning is…

机器学习 · 计算机科学 2019-11-14 Wenhao Zhang , Ramin Ramezani , Arash Naeim

E-commerce platforms and payment solution providers face increasingly sophisticated fraud schemes, ranging from identity theft and account takeovers to complex money laundering operations that exploit the speed and anonymity of digital…

人工智能 · 计算机科学 2026-01-12 Cooper Lin , Yanting Zhang , Maohao Ran , Wei Xue , Hongwei Fan , Yibo Xu , Zhenglin Wan , Sirui Han , Yike Guo , Jun Song

Credit card fraud has emerged as major problem in the electronic payment sector. In this survey, we study data-driven credit card fraud detection particularities and several machine learning methods to address each of its intricate…

机器学习 · 计算机科学 2020-10-14 Yvan Lucas , Johannes Jurgovsky

Background: Machine learning techniques have been widely used and demonstrate promising performance in many software security tasks such as software vulnerability prediction. However, the class ratio within software vulnerability datasets…

密码学与安全 · 计算机科学 2022-05-03 Rui Shu , Tianpei Xia , Laurie Williams , Tim Menzies

Imbalanced data are frequently encountered in real-world classification tasks. Previous works on imbalanced learning mostly focused on learning with a minority class of few samples. However, the notion of imbalance also applies to cases…

机器学习 · 计算机科学 2024-09-09 Yin Jin , Ningtao Wang , Ruofan Wu , Pengfei Shi , Xing Fu , Weiqiang Wang

The large variety of digital payment choices available to consumers today has been a key driver of e-commerce transactions in the past decade. Unfortunately, this has also given rise to cybercriminals and fraudsters who are constantly…

机器学习 · 计算机科学 2021-12-09 Siddharth Vimal , Kanishka Kayathwal , Hardik Wadhwa , Gaurav Dhama

We introduce Fraud-R1, a benchmark designed to evaluate LLMs' ability to defend against internet fraud and phishing in dynamic, real-world scenarios. Fraud-R1 comprises 8,564 fraud cases sourced from phishing scams, fake job postings,…

计算与语言 · 计算机科学 2025-05-27 Shu Yang , Shenzhe Zhu , Zeyu Wu , Keyu Wang , Junchi Yao , Junchao Wu , Lijie Hu , Mengdi Li , Derek F. Wong , Di Wang

Among the various types of cyberattacks, identifying zero-day attacks is problematic because they are unknown to security systems as their pattern and characteristics do not match known blacklisted attacks. There are many Machine Learning…

密码学与安全 · 计算机科学 2025-12-09 Zahra Lotfi , Mostafa Lotfi

Purpose: Malicious web domain identification is of significant importance to the security protection of Internet users. With online credibility and performance data, this paper aims to investigate the use of machine learning tech-niques for…

机器学习 · 计算机科学 2018-10-22 Zhongyi Hu , Raymond Chiong , Ilung Pranata , Yukun Bao , Yuqing Lin

Financial fraud detection has emerged as a critical research challenge amid the rapid expansion of digital financial platforms. Although machine learning approaches have demonstrated strong performance in identifying fraudulent activities,…