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Hierarchical query feedback in an information retrieval system

  • US 6,094,652 A
  • Filed: 06/10/1998
  • Issued: 07/25/2000
  • Est. Priority Date: 06/10/1998
  • Status: Expired due to Term
First Claim
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1. A method for providing hierarchical query feedback to a user in an information retrieval system, said method comprising the step of:

  • receiving a query, comprising one or more terms, input to said information retrieval system that identifies one or more subject matters of interest to a user;

    storing a knowledge base comprising a plurality of nodes of terminology, arranged hierarchically, that reflect associations among said terminology;

    processing said query by selecting nodes of terminology in said knowledge base that reflect concepts at different levels of abstraction with respect to concepts associated with said terms in said query so as to identify hierarchical query feedback terminology; and

    displaying, in response to said query, said hierarchical query feedback terminology, whereby a user may utilize said hierarchical query feedback terminology to formulate a new query that more particularly identifies said subject matters of interest.

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