| 摘要 |
An apparatus for determining associations between subscribers of a communication network comprising means for selecting a first subscriber, means for identifying at least one primary contact of the first subscriber, each primary contact having communicated with the first subscriber, means for identifying at least one secondary contact of the first subscriber, each secondary contact having communicated with a primary contact, for at least one secondary contact, means for identifying at least one common contact of the first subscriber and the secondary contact, common contacts having communicated with the first subscriber and the secondary contact, means for determining the significance of the at least one common contacts and means for determining an association between the first subscriber and the secondary contact in dependence on the significance of the at least one common contact. The invention discloses the calculation of a communication profile for a particular subscriber which can be compared with the profiles of further subscribers to identity associations and therefore identify associations between known fraudulent users and other subscribers. |
