Fraud

Z-score of current transaction amount

Identify by how many standard deviations the current transaction amount deviates from the mean transaction amount for a user.

PythonFraud

User-merchant transaction count

Examine the number of transactions made by a user at the same merchant in the 30 minutes immediately preceding the current transaction time.

PySparkFraud

Standard deviation of user spend

Measure the degree to which a user’s recent transactions differ from their usual behavior.

SparkSQLFraud

Current and last transaction distance

Calculate the distance between the current transaction location and the user’s previous transaction location.

PythonFraud