Query/Document Topic Category Transition Analysis System and Method and Query Expansion-Based Information Retrieval System and Method

  • US 20110047161A1
  • Filed: 02/17/2010
  • Published: 02/24/2011
  • Est. Priority Date: 03/26/2009
  • Status: Active Grant
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First Claim
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1. A method of analyzing transition between a query topic category and a document topic category, comprising:

  • determining a query topic category based on query/document text information with respect to a query input from a user and determining a document topic category based on query/document text information with respect to a document which a user selects from information retrieval results for the input query;

    deriving a weight with respect to topic category transition between the classified query topic category and the classified document topic category; and

    generating a topic category transition map as a result of analyzing topic category transition between a user query and a relevant document based on the derived weight for the topic category transition.

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