Patent ID: 8661538

Claim:
A method for determining risk root cause link, the method comprising: determining, by a computing device, a first and second fraud related risk scores respectively associated with a first and second nodes; determining, by the computing device, a relation strength value related to at least one relation between the first and second nodes; and using by the computing device, a value function that monotonically increases according to the first and second node risk scores and the relation strength value to calculate a cluster risk score for a cluster of nodes, the cluster including at least the first and second nodes; and wherein calculating a cluster risk score comprises: determining at least one path between a first and second nodes, the at least one path including at least one relation between two nodes included in the cluster; determining a relation strength value of at least one relation included in the path and a first and second node risk scores respectively associated with the first and second nodes; and calculating the cluster risk score based on the relation strength values and based on the node risk scores.