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Feature engineering strategies for credit card fraud detection
Univ Luxembourg, Interdisciplinary Ctr Secur Reliabil & Trust. (Signal Processing)ORCID iD: 0000-0003-2298-6774
2016 (English)In: Expert systems with applications, ISSN 0957-4174, E-ISSN 1873-6793, Vol. 51, p. 134-142Article in journal (Refereed) Published
Abstract [en]

Every year billions of Euros are lost worldwide due to credit card fraud. Thus, forcing financial institutions to continuously improve their fraud detection systems. In recent years, several studies have proposed the use of machine learning and data mining techniques to address this problem. However, most studies used some sort of misclassification measure to evaluate the different solutions, and do not take into account the actual financial costs associated with the fraud detection process. Moreover, when constructing a credit card fraud detection model, it is very important how to extract the right features from the transactional data. This is usually done by aggregating the transactions in order to observe the spending behavioral patterns of the customers. In this paper we expand the transaction aggregation strategy, and propose to create a new set of features based on analyzing the periodic behavior of the time of a transaction using the von Mises distribution. Then, using a real credit card fraud dataset provided by a large European card processing company, we compare state-of-the-art credit card fraud detection models, and evaluate how the different sets of features have an impact on the results. By including the proposed periodic features into the methods, the results show an average increase in savings of 13%. (C) 2016 Elsevier Ltd. All rights reserved.

Place, publisher, year, edition, pages
2016. Vol. 51, p. 134-142
Keywords [en]
Cost-sensitive learning, Fraud detection, Preprocessing, Von Mises distribution
National Category
Signal Processing
Identifiers
URN: urn:nbn:se:kth:diva-259148DOI: 10.1016/j.eswa.2015.12.030ISI: 000370899300011Scopus ID: 2-s2.0-84955290327OAI: oai:DiVA.org:kth-259148DiVA, id: diva2:1350606
Note

QC20191004

Available from: 2019-09-11 Created: 2019-09-11 Last updated: 2024-03-15Bibliographically approved

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Publisher's full textScopushttp://www.sciencedirect.com/science/article/pii/S0957417415008386

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Ottersten, Björn

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf