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Method for extracting from a text corpus answers to questions stated in natural language by using linguistic analysis and hypothesis generation

  • US 5,519,608 A
  • Filed: 06/24/1993
  • Issued: 05/21/1996
  • Est. Priority Date: 06/24/1993
  • Status: Expired due to Term
First Claim
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1. A method of operating a processor-based computer system including at least one processor to organize information retrieval based on the content of a set of documents, the method comprising the steps of:

  • using a processor to accept an input string comprising an ordered set of words;

    using a processor to accept the set of documents;

    using a processor to analyze the content of at least one document of the set;

    using a processor to generate automatically an answer hypothesis likely to be relevant to said input string, said answer hypothesis being generated responsively to said document content thus analyzed, said answer hypothesis comprising a phrase;

    using a processor to verify the answer hypothesis by gathering evidence for a plurality of answer hypotheses; and

    using a processor to determine a best answer hypothesis from among said plurality of answer hypotheses according to the evidence thus gathered.

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