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Method for detecting link spam in hyperlinked databases

  • US 8,250,114 B2
  • Filed: 05/31/2011
  • Issued: 08/21/2012
  • Est. Priority Date: 08/18/2003
  • Status: Active Grant
First Claim
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1. A computer-implemented method for analyzing a directed graph of linked nodes, wherein the directed graph of linked nodes corresponds to a linked database, and wherein the nodes correspond to documents within the linked database, the method comprising:

  • at a computer system including one or more processors and memory storing one or more programs, the one or more processors executing the one or more programs to perform the operations of;

    identifying nodes that are beneficiaries of node importance inflating links in the directed graph of linked nodes by computing, for each of at least a subset of the nodes in the directed graph, a respective quantity corresponding to a mathematical derivative of a node importance function; and

    performing a remedial action on a respective node in the directed graph in accordance with the respective computed quantity computed for the respective node.

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