Time-Aware Attention-Based Gated Network for Credit Card Fraud Detection by Extracting Transactional Behaviors

Yu Xie, Guanjun Liu, Chungang Yan, Changjun Jiang, Meng Chu Zhou

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

With the popularity of credit cards worldwide, timely and accurate fraud detection has become critically important to ensure the safety of their user accounts. Existing models generally utilize original features or manually aggregated features as their transactional representations, while they fail to reveal the hidden fraudulent behaviors. In this work, we propose a novel model to extract transactional behaviors of users and learn new transactional behavioral representations for credit card fraud detection. Considering the characteristics of transactional behaviors, two time-aware gates are designed in a recurrent neural net unit to learn long- and short-term transactional habits of users, respectively, and to capture behavioral changes of users caused by different time intervals between their consecutive transactions. A time-aware-attention module is proposed and employed to extract the behavioral information from their consecutive historical transactions with time intervals, which enables the proposed model to capture behavioral motive and periodicity inside their historical transactional behaviors. An interaction module is designed to learn more comprehensive and rational representations. To prove the effectiveness of the learned transactional behavioral representations, experiments are conducted on a large real-world transaction dataset and a public one. The results show that the learned representation can well distinguish fraudulent behaviors from legitimate ones, and the proposed method can improve the performance of credit card fraud detection in terms of various evaluation criteria over the state-of-the-art methods.

Original languageEnglish (US)
Pages (from-to)1004-1016
Number of pages13
JournalIEEE Transactions on Computational Social Systems
Volume10
Issue number3
DOIs
StatePublished - Jun 1 2023

All Science Journal Classification (ASJC) codes

  • Human-Computer Interaction
  • Social Sciences (miscellaneous)
  • Modeling and Simulation

Keywords

  • Attention
  • credit card fraud detection
  • representation learning
  • transactional behavior

Fingerprint

Dive into the research topics of 'Time-Aware Attention-Based Gated Network for Credit Card Fraud Detection by Extracting Transactional Behaviors'. Together they form a unique fingerprint.

Cite this