Patent 9886701 was granted and assigned to Google on February, 2018 by the United States Patent and Trademark Office.
Endorsement abuse detection via social interactions is described, including generating an endorsement log comprising an endorser identifier, a target identifier, endorsement data, and a token indicative of an endorsement event; analyzing the endorsement log with respect to a user aggregator and a target aggregator, to generate an online endorsement abuse candidate; generating an endorsement overlap graph for the online endorsement abuse candidate based on the endorsement log, the user aggregator and the target aggregator, wherein nodes of the endorsement overlap graph represent ones of the online endorsement abuse candidate, and edges represent a number of shared endorsements; and determining whether the endorsement event is authorized based an analysis of the endorsement overlap graph and an orthogonal signal at least one of transmitted and received by the ones of the online endorsement abuse candidate.