Document (#23691)

Author
Ekmekcioglu, F.C.
Robertson, A.M.
Willett, P.
Title
Effectiveness of query expansion in ranked-output document retrieval systems
Source
Journal of information science. 18(1992) no.2, S.139-147
Year
1992
Abstract
Reports an evaluation of 3 methods for the expansion of natural language queries in ranked output retrieval systems. The methods are based on term co-occurrence data, on Soundex codes, and on a string similarity measure. Searches for 110 queries in a data base of 26.280 titles and abstracts suggest that there is no significant difference in retrieval effectiveness between any of these methods and unexpanded searches
Theme
Retrievalstudien
Semantisches Umfeld in Indexierung u. Retrieval

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