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Information extraction in a natural language understanding system

  • US 9,454,525 B2
  • Filed: 05/20/2013
  • Issued: 09/27/2016
  • Est. Priority Date: 06/18/2007
  • Status: Active Grant
First Claim
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1. A method of extracting information from a text input received by a natural language understanding system, comprising:

  • parsing the text input to extract a plurality of features from the text input;

    processing each of the plurality of features through a plurality of statistical models to obtain at least one value;

    searching the text input for at least one named entity;

    determining a value for a feature based upon the at least one named entity located within the text input;

    combining, via a processor, one value for each of the plurality of features to create a complex information target; and

    outputting the complex information target, whereinthe complex information target indicates a meaning for the text input.

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