Conceptual query expansion
SourceData and Knowledge Engineering, 56, 2, (2006), pp. 174-193
Article / Letter to editor
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SW OZ DCC KI
Data and Knowledge Engineering
SubjectCognitive artificial intelligence
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.
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