Libraly Journal

LIBRARY JOURNAL ›› 2013, Vol. 32 ›› Issue (4): 75-81.

Previous Articles     Next Articles

The Application of Semantic Query Expansion in Knowledge Base of Virtual Reference System: Shanghai Library as an Example

 Guo Jinlong, Xu Xin, Yao Zhanlei   

  • Online:2013-04-15 Published:2013-04-25

Abstract:

The article proposes the application of semantic query expansion techniques to retrieval in virtual
reference system. It reviews relevant approaches regarding semantic query expansion, presents a new method
based on thesaurus, discusses the key techniques involved, and verifies its effectiveness by experiments with
the knowledge base of the Shanghai Library’s virtual reference system.

Key words: Virtual reference, Knowledge base, Query expansion, Semantic, Thesaurus