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Systems, methods, and media for determining fraud patterns and creating fraud behavioral models

  • US 9,503,571 B2
  • Filed: 10/29/2015
  • Issued: 11/22/2016
  • Est. Priority Date: 04/21/2005
  • Status: Active Grant
First Claim
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1. A method for analyzing call data associated with fraudsters, the method comprising:

  • executing instructions stored in memory, the instructions to be executed by a processor, the instructions being configured to;

    responsive to receiving first call data associated with fraudsters;

    (a) generate a voiceprint for each fraudster in the first call data such that a first plurality of voiceprints are generated;

    (b) retrieve from a blacklist database a second plurality of voiceprints;

    (c) compare each voiceprint of the first plurality of voiceprints with each voiceprint of the second plurality of voiceprints to generate a plurality of relative comparison scores, wherein the comparing is performed using a matrix arranged such that the first plurality of voiceprints are disposed on a first axis of the matrix, the second plurality of voiceprints are disposed on a second axis of the matrix, and such that cells of the matrix include a relative comparison score for each voiceprint pair, wherein relative comparison scores are numerical values that indicate a degree of similarity between two voiceprints;

    (d) group together voiceprint pairs having relative comparison scores above or below a predetermined threshold values;

    (e) generate a master voiceprint for the group; and

    (f) store the master voiceprint in the blacklist database, wherein the master voiceprint is subsequently used for screening new call data to detect fraud in a new call.

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