Abstract:

A query refinement scheme, which synthesizes the synonymic relation and the semantic association, is presented. By analyzing the synonymic characteristic of the key words and the intensity of semantic association among the ontology instances, the accuracy and completeness of the mapping from key word to ontology entities can be improved. A query refinement system is designed and implemented. The experimentation results show the system can optimize query input efficiently.

Key words: Web search, query refinement, semantic association, WordNet