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arXiv 2007.14622cs.LGstat.ML
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基于人工智能的信用卡欺诈检测方法

Approaches to Fraud Detection on Credit Card Transactions Using Artificial Intelligence Methods

Istanbul Technical University(伊斯坦布尔理工大学)

Yusuf Yazici

摘要:

信用卡欺诈是世界上几乎所有行业都存在的问题,每年为全球经济带来数百万美元的收入。因此,为了发现行业中的这类欺诈行为,已经完成或正在进行一些研究。这些研究通常使用基于规则的或新颖的人工智能方法来找到合适的解决方案。本文的最终目标是总结最先进的方法来检测欺诈使用人工智能和机器学习技术。在总结的同时,我们将对几乎所有研究工作都会遇到的常见问题进行分类,例如不平衡数据集,实时的工作场景和特征工程挑战,并确定解决这些问题的一般方法。不平衡数据集问题的发生是因为合法交易的数量远远高于欺诈交易,而应用正确的特征工程是重要的,因为从行业中获得的特征是有限的,应用特征工程方法和改造数据集是至关重要的。此外,使检测系统适应实时的场景是一个挑战,因为在有限的时间段内信用卡交易的数量非常高。此外,我们将讨论评估指标和机器学习方法如何区分每项研究。

英文摘要:

Credit card fraud is an ongoing problem for almost all industries in the world, and it raises millions of dollars to the global economy each year. Therefore, there is a number of research either completed or proceeding in order to detect these kinds of frauds in the industry. These researches generally use rule-based or novel artificial intelligence approaches to find eligible solutions. The ultimate goal of this paper is to summarize state-of-the-art approaches to fraud detection using artificial intelligence and machine learning techniques. While summarizing, we will categorize the common problems such as imbalanced dataset, real time working scenarios, and feature engineering challenges that almost all research works encounter, and identify general approaches to solve them. The imbalanced dataset problem occurs because the number of legitimate transactions is much higher than the fraudulent ones whereas applying the right feature engineering is substantial as the features obtained from the industries are limited, and applying feature engineering methods and reforming the dataset is crucial. Also, adapting the detection system to real time scenarios is a challenge since the number of credit card transactions in a limited time period is very high. In addition, we will discuss how evaluation metrics and machine learning methods differentiate among each research.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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