Document (#3645)

Author

Keen, E.M.

Title

Presenting results of experimental retrieval comparisons

Source

Information processing and management. 28(1992) no.4, S.491-502

Year

1992

Abstract

Methods of calculating and presenting results from experimental retrieval comparisons are considered and illustrated by some new laboratory results. The measures used centre on Recall and Precision. Topics of data calculation, single value measures, benchmark results, data aggregation, statistical significance, and the presentation of performance differences are discussed. User-oriented presentations can be used to simulate different needs such as high or low levels of Recall. Several methods of retrieval cutoff can be used as the control variable, but the document cutoff is the most useful. 2 difficult performance comparisons are illustrated: Boolean versus ranked output retrieval and non-iterative versus relevance feedback

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5. Ahlgren, P.; Grönqvist, L.: Evaluation of retrieval effectiveness with incomplete relevance data : theoretical and experimental comparison of three measures (2008) 0.14

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