Unveiling the Potential of Local Outlier Factor in Credit Card Fraud Detection

Authors

  • Angel Jones Capitol Technology University, United State of America
  • Marwan Omar Illinois Tech and Capitol Technology University, United State of America

Keywords:

Local Outlier Factor (LOF), Credit Card Fraud Detection, Unsupervised Learning, Anomaly Detection, Imbalanced Datasets

Abstract

This study evaluates the Local Outlier Factor (LOF) algorithm for credit card fraud detection, emphasizing its effectiveness with imbalanced datasets. Unlike traditional methods that struggle with the rarity and variability of fraudulent transactions, LOF uses local density deviations to identify anomalies. Through a rigorous methodology involving data preprocessing, parameter tuning, and comparison with other machine learning algorithms, LOF demonstrated a high recall rate and a balanced precision-recall trade-off, excelling at detecting subtle, localized fraud. Challenges like threshold setting and false positives were noted, with future research suggested on real-time system integration, algorithm combination, and advanced feature engineering. The study underscores LOF's strengths and limitations, contributing to enhanced fraud detection strategies

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Published

2025-02-12

How to Cite

[1]
“Unveiling the Potential of Local Outlier Factor in Credit Card Fraud Detection”, Int. J. Inform. Inf. Sys. and Comp. Eng., vol. 7, no. 1, pp. 1–13, Feb. 2025, Accessed: Apr. 19, 2025. [Online]. Available: https://ojs.unikom.ac.id/index.php/injiiscom/article/view/15319