Patent ID: 8478688

Claim:
A method of identifying risky transactions from a set of transactions, each transaction of the set of transactions having a previous value of a risk score, the previous value of the risk score having been computed by a risk score engine, the method comprising: adjusting a configuration of the risk score engine to form an adjusted risk score engine, the adjusted risk score engine being constructed and arranged to compute a new value of the risk score for a transaction; running each transaction of a subset of the set of transactions through the adjusted risk score engine to generate a new value of the risk score for each transaction of the subset of transactions, each transaction of the subset of transactions having the previous value of the risk score of the transaction being above a threshold value of the risk score; not running transactions of another subset of the set of transactions through the adjusted risk score engine, each transaction of the another subset of transactions having the previous value of the risk score of the transaction being below the threshold value of the risk score; prior to adjusting the configuration of the risk score engine, sorting the set of transactions in a descending order according to the previous value of the risk score of each transaction of the set of transactions, and assigning, to each transaction of the set of transactions, a previous value of a scaled risk score, a set of values of the scaled risk score having a specified minimum value and maximum value, each value of the set of values of the scaled risk score corresponding to a percentile of values of the risk score; wherein the threshold value of the risk score corresponds to a specified threshold value of the scaled risk score.