A Frequency-domain-based Pattern Mining for Credit Card Fraud Detection

Roberto Saia, Salvatore Carta

Abstract

Nowadays, the prevention of credit card fraud represents a crucial task, since almost all the operators in the E-commerce environment accept payments made through credit cards, aware of that some of them could be fraudulent. The development of approaches able to face effectively this problem represents a hard challenge due to several problems. The most important among them are the heterogeneity and the imbalanced class distribution of data, problems that lead toward a reduction of the effectiveness of the most used techniques, making it difficult to define effective models able to evaluate the new transactions. This paper proposes a new strategy able to face the aforementioned problems based on a model defined by using the Discrete Fourier Transform conversion in order to exploit frequency patterns, instead of the canonical ones, in the evaluation process. Such approach presents some advantages, since it allows us to face the imbalanced class distribution and the cold-start issues by involving only the past legitimate transactions, reducing the data heterogeneity problem thanks to the frequency-domain-based data representation, which results less influenced by the data variation. A practical implementation of the proposed approach is given by presenting an algorithm able to classify a new transaction as reliable or unreliable on the basis of the aforementioned strategy.

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Paper Citation


in Harvard Style

Saia R. and Carta S. (2017). A Frequency-domain-based Pattern Mining for Credit Card Fraud Detection . In Proceedings of the 2nd International Conference on Internet of Things, Big Data and Security - Volume 1: IoTBDS, ISBN 978-989-758-245-5, pages 386-391. DOI: 10.5220/0006361403860391


in Bibtex Style

@conference{iotbds17,
author={Roberto Saia and Salvatore Carta},
title={A Frequency-domain-based Pattern Mining for Credit Card Fraud Detection},
booktitle={Proceedings of the 2nd International Conference on Internet of Things, Big Data and Security - Volume 1: IoTBDS,},
year={2017},
pages={386-391},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006361403860391},
isbn={978-989-758-245-5},
}


in EndNote Style

TY - CONF
JO - Proceedings of the 2nd International Conference on Internet of Things, Big Data and Security - Volume 1: IoTBDS,
TI - A Frequency-domain-based Pattern Mining for Credit Card Fraud Detection
SN - 978-989-758-245-5
AU - Saia R.
AU - Carta S.
PY - 2017
SP - 386
EP - 391
DO - 10.5220/0006361403860391