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Method and system for describing and identifying concepts in natural language text for information retrieval and processing

  • US 7,346,490 B2
  • Filed: 09/28/2001
  • Issued: 03/18/2008
  • Est. Priority Date: 09/29/2000
  • Status: Expired due to Fees
First Claim
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1. A method of information retrieval, performed on a computer system that matches text in documents and other text-forms against user-defined descriptions of concepts, comprising:

  • a) identification of linguistic entities in the text of documents and other text-forms;

    b) annotation of said identified linguistic entities in a text markup language to produce linguistically annotated documents and other text-forms;

    c) storage of said linguistically annotated documents and other text-forms;

    d) identification of concepts using linguistic information, where said concepts are represented in a concept specification language and said concepts occur in one of;

    1) said text of documents and other text-forms in which linguistic entities have been identified in step a);

    or2) said linguistically annotated documents and other text-forms of step b);

    or3) stored linguistically annotated documents and other text-forms of step c);

    e) annotation of said identified concepts in said text markup language to produce conceptually annotated documents and other text-forms;

    f) storage of said conceptually annotated documents and other text-forms;

    g) defining and learning concept representations of said concept specification language, including;

    1) marking up instances of concepts in the text of documents and other text-forms;

    2) creating new concept representations in the concept specification language from said marked up instances of concepts; and

    3) adding and, if necessary, integrating said new concept representations in the concept specification language with pre-existing concept representations in said language;

    h) checking user-defined descriptions of concepts represented in said concept specification language; and

    i) retrieval by matching said user-defined descriptions of concepts against said conceptually annotated documents and other text-forms.

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