Condorcet query engine: A query engine for coordinated index terms

P.E. van der Vet, Nicolaas Mars

    Research output: Contribution to journalArticleAcademic

    5 Citations (Scopus)


    On-line information retrieval systems often offer their users some means to tune the query to match the level of granularity of the information request. Users can be offered a far greater range of possibilities, however, if documents are indexed with coordinated index concepts. Coordinated index concepts are compound index concepts that express a relation between concepts that function as simple subject descriptors, as in cures(headache, aspirin). We show the point by giving a functional specification of a query engine that can handle both simple and coordinated index concepts, Boolean combinations, and superconcept expansion. The Condorcet Query Engine, a prototype query engine that can be run over the World Wide Web (WWW), demonstrates the feasibility of these ideas. The combination of known and novel techniques ensures a smooth migration path from existing query engines to more advanced engines that handle coordinated index concepts.
    Original languageUndefined
    Pages (from-to)485-492
    JournalJournal of the American Society for Information Science
    Issue number6
    Publication statusPublished - 1999


    • query formulation
    • prototyping
    • search engines
    • IR-71538
    • online searching
    • postcoordinate indexing
    • index terms
    • descriptors
    • Query expansion
    • precoordinate indexing

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