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Methods and apparatus for determining focal points of clusters in a tree structure

  • US 6,415,283 B1
  • Filed: 10/13/1998
  • Issued: 07/02/2002
  • Est. Priority Date: 10/13/1998
  • Status: Expired due to Term
First Claim
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1. A method for learning a context of a term from a plurality of terms, said method comprising the steps of:

  • storing a knowledge base comprising a plurality of nodes of categories, arranged in a hierarchy to depict relationships among said categories, that represent concepts;

    receiving a plurality of base terms with associated weight values;

    receiving a term to learn a context of said term from said base terms;

    selecting a set of nodes from said knowledge base with concepts that correspond with said base terms;

    assigning quantitative values to nodes in said set of nodes from said weight values in said base terms;

    selecting at least one cluster of categories of nodes from said knowledge base based on said quantitative values and said relationships of said categories in said knowledge base; and

    selecting a focal point category for said cluster of nodes that represents a concept most representative of said term to learn based on said weight values of said nodes, wherein said focal point category identifies a concept for said term.

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