Document (#23690)

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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4. Lam-Adesina, A.M.; Jones, G.J.F.: Examining and improving the effectiveness of relevance feedback for retrieval of scanned text documents (2006) 0.30

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5. Hancock-Beaulieu, M.; Walker, S.: ¬An evaluation of automatic query expansion in an online library catalogue (1992) 0.29

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