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Systems and methods for determining document freshness

  • US 8,515,952 B2
  • Filed: 12/19/2011
  • Issued: 08/20/2013
  • Est. Priority Date: 09/30/2003
  • Status: Active Grant
First Claim
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1. A method comprising:

  • identifying, by one or more processors, a set of second documents,each second document, in the set of second documents, including a link to a first document;

    determining, by one or more processors and for each second document in the set of second documents, a time at which the link to the first document existed;

    assigning, by one or more processors, a freshness score to the first document based on the times at which the links to the first document existed; and

    ranking, by one or more processors, the first document, with respect to at least one other document, based on the freshness score assigned to the first document.

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