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Unsupervised extraction of facts

  • US 20070150800A1
  • Filed: 03/31/2006
  • Published: 06/28/2007
  • Est. Priority Date: 05/31/2005
  • Status: Active Grant
First Claim
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1. A method for extracting facts, the method comprising:

  • extracting a first fact having an attribute and a value from a first document;

    retrieving a second document that contains the attribute and the value of the first fact;

    identifying in the second document a contextual pattern associated with the attribute and value of the first fact; and

    extracting a second fact from the second document using the contextual pattern.

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