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On sample sizes for non-matched-pair IR experiments

Authors
Journal
Information Processing & Management
0306-4573
Publisher
Elsevier
Publication Date
Volume
26
Issue
6
Identifiers
DOI: 10.1016/0306-4573(90)90049-8

Abstract

Abstract The problem of determining an adequate sample size, for an information retrieval experiment comparing two systems on separate samples of requests, is discussed. Minimal sample sizes under different assumptions are derived. It is concluded that such experiments are very likely to require samples of considerable size.

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