Query expansion using associated queries

Billerbeck, B, Scholer, F, Williams, H and Zobel, J 2003, 'Query expansion using associated queries', in Proceedings of the 12th ACM International Conference on Information and Knowledge Management, New Orleans, USA, 3-8 November 2003.


Document type: Conference Paper
Collection: Conference Papers

Title Query expansion using associated queries
Author(s) Billerbeck, B
Scholer, F
Williams, H
Zobel, J
Year 2003
Conference name International Conference on Information and Knowledge Management
Conference location New Orleans, USA
Conference dates 3-8 November 2003
Proceedings title Proceedings of the 12th ACM International Conference on Information and Knowledge Management
Publisher ACM Press
Place of publication New York, USA
Abstract Hundreds of millions of users each day use web search engines to meet their information needs. Advances in web search effectiveness are therefore perhaps the most significant public outcomes of IR research. Query expansion is one such method for improving the effectiveness of ranked retrieval by adding additional terms to a query. In previous approaches to query expansion, the additional terms are selected from highly ranked documents returned from an initial retrieval run. We propose a new method of obtaining expansion terms, based on selecting terms from past user queries that are associated with documents in the collection. Our scheme is effective for query expansion for web retrieval: our results show relative improvements over unexpanded full text retrieval of 26%--29%, and 18%--20% over an optimised, conventional expansion approach.
Subjects Information Retrieval and Web Search
Copyright notice © 2003 ACM
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