Archive for December, 2009

Dr. Jay Zhou will give two presentations at COLLABORATE 10 – IOUG Forum

Thursday, December 10th, 2009

COLLABORATE 10 – IOUG (Independent Oracle User Group) Forum April 18-22,2010, Las Vegas, Nevada

1. Building a Check Fraud Detection System Using Oracle 11g and Oracle Data Mining,  April 20, 2010

2. Building a Card Fraud Reporting Portal,  April 22, 2010

Frivolous Fraud Detection Rules

Wednesday, December 9th, 2009

Some fraud detection rules are frivolous and they stop working soon after we create them. An example of possible frivolous rule looks like: bank card transactions at supermarket XYZ located at 100 Main Street, ABC City, are likely fraud. The rule could be created by analysts observing a number of fraud cases. However, it may be totally random that fraudsters conduct fraud transactions at  supermarket XYZ.  To create effective and stable rules, it is better to identify variables that capture the intrinsic fraudulent behavior patterns and are time-invariant and spatial-invariant.