Credit card fraud detection based on self-paced ensemble neural network

Wei Zhou, Xiaorui Xue, Yi-zhao Xu
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Abstract

Along with the significant increase in the number of credit cards, the number of credit card frauds worldwide is increasing day by day. At the same time, the development of Internet technology has led to the emergence of new fraud methods. The traditional credit card fraud detection methods can no longer meet the needs of the current credit card financial industry development. Identifying fraudulent credit card transactions effectively, quickly and accurately has become a major concern for banks. Methods combining expert rules and statistical analysis, decision tree methods, anomaly detection methods, and feature engineering methods are used in credit card fraud detection research. Among the many methods, deep learning is a new artificial intelligence method that has developed rapidly in recent years and is widely used in credit card fraud detection research. This paper uses a self-paced ensemble neural network (SP-ENN) model to learn credit card fraud transactions by dividing the datasets with different hardness, then identifying these transactions by neural networks, and finally performing a comprehensive evaluation. It was found that this model significantly outperforms other up-sampling or integration models in detecting credit card fraud data.
基于自节奏集成神经网络的信用卡欺诈检测
随着信用卡数量的大幅增加,全球范围内的信用卡诈骗案件也日益增多。与此同时,互联网技术的发展导致了新的欺诈手段的出现。传统的信用卡欺诈检测方法已经不能满足当前信用卡金融行业发展的需要。有效、快速、准确地识别信用卡欺诈交易已成为银行关注的主要问题。将专家规则与统计分析相结合的方法、决策树方法、异常检测方法和特征工程方法用于信用卡欺诈检测研究。在众多方法中,深度学习是近年来发展迅速的一种新型人工智能方法,广泛应用于信用卡欺诈检测研究。本文采用自定步集成神经网络(SP-ENN)模型对信用卡欺诈交易进行学习,将不同硬度的数据集进行划分,然后通过神经网络对这些交易进行识别,最后进行综合评价。发现该模型在检测信用卡欺诈数据方面明显优于其他上采样或集成模型。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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