3-Layer ontology based query expansion for searching

Authors:
Li Liu;Fangfang Li
Affiliations:
School of Computer Science and Technology, Beijing Institute of Technology, Beijing, P.R. China;School of Computer Science and Technology, Beijing Institute of Technology, Beijing, P.R. China
Venue:
ISNN'11 Proceedings of the 8th international conference on Advances in neural networks - Volume Part III
Year:
2011

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Abstract

In this paper we propose the schema of 3-layer domain ontology. The entity relation, entity-attribute pair and textual description are distributed in layers respectively. Based on the 3-layer ontology we proposed 4 query expansion methods: top-down expansion, synonyms expansion, bottom-up expansion and backtracking expansion. A set of experiment1 is carried out to prove the expansion methods. Different result shows the expansion methods is effective as a whole, and we analysis the shortage of our methods.