X-SHAoLIM: Novel Feature Selection Framework for Credit Card Fraud Detection

سال انتشار: 1403
محل انتشار: مجله هوش مصنوعی و داده کاوی، دوره: 12، شماره: 1
کد COI اختصاصی: JR_JADM-12-1_005
زبان مقاله: انگلیسی
تعداد مشاهده: 274

نویسندگان

School of Computer Engineering, Iran University of Science and Technology, Tehran, Iran.

چکیده

Fraud in financial data is a significant concern for both businesses and individuals. Credit card transactions involve numerous features, some of which may lack relevance for classifiers and could lead to overfitting. A pivotal step in the fraud detection process is feature selection, which profoundly impacts model accuracy and execution time. In this paper, we introduce an ensemble-based, explainable feature selection framework founded on SHAP and LIME algorithms, called "X-SHAoLIM". We applied our framework to diverse combinations of the best models from previous studies, conducting both quantitative and qualitative comparisons with other feature selection methods. The quantitative evaluation of the "X-SHAoLIM" framework across various model combinations revealed consistent accuracy improvements on average, including increases in Precision (+۵.۶), Recall (+۱.۵), F۱-Score (+۳.۵), and AUC-PR (+۶.۷۵). Beyond enhanced accuracy, our proposed framework, leveraging explainable algorithms like SHAP and LIME, provides a deeper understanding of features' importance in model predictions, delivering effective explanations to system users.

کلیدواژه ها

Machine learning, Feature Selection, Ensemble learning, explainable AI, data mining

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