Research Article

Credit Card Fraud Detection through Parenclitic Network Analysis

Table 3

Features composing the credit card transactions dataset.

Name Type Description

Transaction size Integer Size, in Euro, of the transaction under analysis.
Time since last transaction Integer Time, in seconds, since the last transaction of the same card.
Last transaction size Integer Size, in Euro, of the previous transaction executed by the same card.
Average transaction size Float Average size, in Euro, of the transactions executed by the card in the last month.
Average time between transactions Float Average time, in seconds, between consecutive transactions of the same card.
Same shop Boolean is the shop corresponds to the one of the last transaction of the same card, otherwise.
Hour of the day Integer Hour (from to ) at which the operation was realized.
Fraud rate Float Average rate of illegal operations, for all cards, in the last transactions.

Fraud suspicion Integer Number representing the likelihood for the transaction to be illicit, according to the bank automatic fraud detection algorithm. Values range between (no fraud suspected) to (certain fraud).
Fraud Boolean if the transaction has been recognized as a fraud, otherwise.