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ERIC Number: EJ030355
Record Type: CIJE
Publication Date: 1970
Pages: N/A
Abstractor: N/A
Reference Count: 0
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On Deriving Design Equations for Information Retrieval Systems
Cooper, William S.
Journal of the American Society for Information Science, 21, 6, 385-395, Nov-Dec '70
Design equations are derived for three types of retrieval systems. The equation in each case shows the relationship between expected search length, used as a performance measure, and certain system characteristics having to do with the distribution of index terms over the document collection and the number of errors in the search requests. (MF)
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