Ontology driven dictionary generation and ambiguity resolution for natural language processing

  • US 9,372,924 B2
  • Filed: 06/12/2012
  • Issued: 06/21/2016
  • Est. Priority Date: 06/12/2012
  • Status: Expired due to Fees
First Claim
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1. A computer implemented method for natural language processing ambiguity resolution, comprising:

  • storing, in computer memory, an ontology specifying a set of grammatical rules, wherein the rules are associated with a word, with a sub-class of which the word belongs, and rules are associated with a greater class inclusive of the sub-class;

    receiving, using a computer processor, a phrase having a natural language processing ambiguity and comprising at least one current word to be processed;

    annotating, using the computer processor, each word from the phrase with an ontological class and sub-class to which the current word belongs according to the ontology, the subclass being associated with the class, the class further including at least one other sub-class, the class and sub-classes each having an associated one of the grammatical rules;

    retrieving, using the processor, the grammatical rules associated with the ontological classes and sub-classes to which the current word belongs;

    eliminating, using the processor, one or more ontological classes or sub-classes based on the grammatical rules associated with the respective classes and sub-classes;

    determining, using the processor, a surviving ontological class and sub-class to be an accurate ontological class and sub-class for each word to resolve the natural language processing ambiguity;

    storing, using the processor, the surviving ontological class and sub-class into an ontological library;

    receiving, using the computer processor, a request to generate a dictionary for a selected ontological classification or sub-classification;

    retrieving, using the computer processor, all word instances belonging to the selected ontological classification or sub-classification; and

    compiling the retrieved word instances into a list to generate the requested dictionary for the selected ontological classification or sub-classification.

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