Document (#14071)

Author

Rijsbergen, C.J. van

Title

¬A test for the separation of relevant and non-relevant documents in experimental retrieval collections

Source

Journal of documentation. 29(1973) no.3, S.251-257

Year

1973

Abstract

Many retrievalexperiments are intended to discover ways of improving performance, taking the results obtained with some particular technique as a baseline. The fact that substantial alterations to a system often have little or no effect on particular collections is puzzling. This may be due to the initially poor seperation of relevant and non-relevant documents. The paper presents a procedure for characterizing this seperation for a collection, which can be used to show whether proposed modifications of the base system are likely to be useful.

Theme

Retrievalstudien

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