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Concept dictionary based information retrieval

  • US 20060179074A1
  • Filed: 02/24/2004
  • Published: 08/10/2006
  • Est. Priority Date: 03/25/2003
  • Status: Active Grant
First Claim
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1. A method of generating a concept dictionary (140) for use in querying an information system (125), comprising the steps of:

  • (i) receiving an information search criterion;

    (ii) deriving (105), using a lexical reference source (115), at least one search criterion having related meaning to said received search criterion (110);

    (iii) identifying sets of information in said information system (125) relevant to said received search criterion (110) and to said at least one derived search criterion;

    (iv) analysing the identified sets of information to derive relationships between said received search criterion (110) and said at least one derived search criterion in the context of said information system (125); and

    (v) storing, in a concept dictionary (140), information relating to said received (110) and said at least one derived search criterion and to respective said derived relationships therebetween, for use in querying said information system (125).

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