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Credit Card Fraud Detection Using Enhanced Random Forest Classifier for Imbalanced Data

2023/03/11 by AlsharifHasan Mohamad Aburbeian, Aburbeian, AlsharifHasan Mohamad, Huthaifa I. Ashqar +1 · 2 citations
Computer Science · Engineering · Health Professions · #Artificial Intelligence (cs.AI) #Artificial Intelligence in Healthcare #Cryptography and Security (cs.CR) #FOS: Computer and information sciences #Imbalanced Data Classification Techniques #Vehicle License Plate Recognition

paper · pdf · doi:10.48550/arxiv.2303.06514

openalex publication_date 2023/03/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The credit card has become the most popular payment method for both online and offline transactions. The necessity to create a fraud detection algorithm to precisely identify and stop fraudulent activity arises as a result of both the development of technology and the rise in fraud cases. This paper implements the random forest (RF) algorithm to solve the issue in the hand. A dataset of credit card transactions was used in this study. The main problem when dealing with credit card fraud detection is the imbalanced dataset in which most of the transaction are non-fraud ones. To overcome the problem of the imbalanced dataset, the synthetic minority over-sampling technique (SMOTE) was used. Implementing the hyperparameters technique to enhance the performance of the random forest classifier. The results showed that the RF classifier gained an accuracy of 98% and about 98% of F1-score value, which is promising. We also believe that our model is relatively easy to apply and can overcome the issue of imbalanced data for fraud detection applications.

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