Effectiveness of query expansion in ranked-output document retrieval systems
- 1 April 1992
- journal article
- research article
- Published by SAGE Publications in Journal of Information Science
- Vol. 18 (2) , 139-147
- https://doi.org/10.1177/016555159201800208
Abstract
This paper reports an evaluation of three methods for the expansion of natural language queries in ranked-out put retrieval systems. The methods are based on term co-oc currence data, on Soundex codes, and on a string similarity measure. Searches for 110 queries in a database of 26,280 titles and abstracts suggest that there is no significant differ ence in retrieval effectiveness between any of these methods and unexpanded searches.Keywords
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