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User interface and other enhancements for natural language information retrieval system and method

  • US 6,026,388 A
  • Filed: 08/14/1996
  • Issued: 02/15/2000
  • Est. Priority Date: 08/16/1995
  • Status: Expired due to Term
First Claim
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1. A method of operating a computerized information retrieval system where information is retrieved from a database containing documents in response to user queries, the method comprising:

  • receiving a natural language query specifying information to be retrieved;

    processing the query to generate an alternative representation of the query, the alternative representation including generating a logical representation incorporating terms and phrases found in the query and assigning weighted Boolean scores to the query terms;

    displaying query information to the user indicating the result of said step of processing the query;

    receiving user input responsive to the display of query information;

    in response to such user input, if any, modifying the alternative representation of the query to reflect such user input; and

    matching the alternative representation of the query, modified in accordance with such user input, if any, against the database.

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