Conceptual query expansion

This article presents a new, hybrid approach that projects an initial query result onto global information, yielding a local conceptual overview. Concepts found this way are candidates for query refinement. We show that the resulting conceptual structure after a typical short query of 2 terms, conta...

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Bibliographic Details
Published in:Data & knowledge engineering 2006-02, Vol.56 (2), p.174-193
Main Authors: Grootjen, F.A., van der Weide, Th.P.
Format: Article
Language:English
Subjects:
Expansion
Feedback
Query
Relevance
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Description
Summary:This article presents a new, hybrid approach that projects an initial query result onto global information, yielding a local conceptual overview. Concepts found this way are candidates for query refinement. We show that the resulting conceptual structure after a typical short query of 2 terms, contains refinements that perform just as well as a most accurate query formulation. Subsequently we illustrate that query by navigation is an effective mechanism which in most cases finds the optimal concept in a small number of steps. When an optimal concept is not found, the navigation process still finds an acceptable sub-optimum.
ISSN:0169-023X
1872-6933
DOI:10.1016/j.datak.2005.03.006