A utility-theoretic analysis of expected search length

1 January 1988

proceedings article
Published by Association for Computing Machinery (ACM)

p. 245-256
https://doi.org/10.1145/62437.62457

Abstract

In this paper the expected search length, which is a measure of retrieval system performance, is investigated from the viewpoint of axiomatic utility theory. Necessary and sufficient criteria for the expected search length to be an ordinal scale and sufficient criteria that it is a ratio scale are given.

Keywords

RETRIEVAL SYSTEM PERFORMANCE
RATIO SCALE
ORDINAL SCALE
UTILITY-THEORETIC ANALYSIS
EXPECTED SEARCH LENGTH
AXIOMATIC UTILITY THEORY
SUFFICIENT CRITERION
SYSTEM PERFORMANCE
UTILITY THEORY

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