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Encoding method of members related by multiple concept or group hierarchies and identification of members in a corpus or a database that are descendants of one or more selected concepts or groups from the encoding

  • US 5,940,822 A
  • Filed: 08/29/1997
  • Issued: 08/17/1999
  • Est. Priority Date: 08/29/1997
  • Status: Expired due to Term
First Claim
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1. A method of executing a query in a computer, the query being performed by the computer to retrieve data from a database stored on a data storage device connected to the computer, the method comprising the steps of:

  • encoding members in the database related by one or more concept hierarchies, wherein the encoding represents one or more concepts; and

    identifying members in one of the concept hierarchies that are descendants of one or more selected concepts based on the encoding by traversing each of the members related by the concept hierarchies only once.

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