Document (#13556)

Author

Brooks, T.A.

Title

Topical subject expertise and the semantic distance model of relevance assessment

Source

Journal of documentation. 51(1995) no.4, S.370-387

Year

1995

Abstract

Reports 2 experiments that investigated the semantic distance model (SDM) of relevance assessment. In the 1st experiment graduate students of mathematics and economics assessed the relevance relationships between bibliographic records and hierarchies of terms composed of classification heading or help menu terms. The relevance assessments of the classification headings, but not the help menu terms, exhibited both a semantic distance effect and a semantic direction effect as predicted by the SDM. Topical subject expertise enhanced both these effects. The 2nd experiment investigates whether the poor performance of the help menu terms are an experimental design artifact reflecting the comparison of terse help terms with verbose classification headings. In the 2nd experiment the help menu terms were compared to a hierarchy of single word terms where they exhibited both a semantic distance and semantic direction effect

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5. Hansen, P.; Karlgren, J.: Effects of foreign language and task scenario on relevance assessment (2005) 0.12

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