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Systems and methods for authoritativeness grading, estimation and sorting of documents in large heterogeneous document collections

DC
  • US 7,167,871 B2
  • Filed: 09/03/2002
  • Issued: 01/23/2007
  • Est. Priority Date: 05/17/2002
  • Status: Expired due to Term
First Claim
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1. A method for determining an authoritativeness of a document having a plurality of document content features, the method comprising:

  • determining a set of document content feature values of a document based on textual contents in the document, the document providing information regarding a subject;

    determining an authoritativeness for the document based on the determined set of document content feature values using a trained document textual authority model, wherein determining the authoritativeness comprises determining a reliability of the document, the reliability indicative of whether the information, as provided in the document, is reliable regarding the subject; and

    outputting the determined authoritativeness in association with the document.

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