Relevance weighting of search terms

S. E. Robertson and K. Sparck Jones

Journal of the American Society for Information Science, 1976, vol. 27, issue 3, 129-146

Abstract: This paper examines statistical techniques for exploiting relevance information to weight search terms. These techniques are presented as a natural extension of weighting methods using information about the distribution of index terms in documents in general. A series of relevance weighting functions is derived and is justified by theoretical considerations. In particular, it is shown that specific weighted search methods are implied by a general probabilistic theory of retrieval. Different applications of relevance weighting are illustrated by experimental results for test collections.

Date: 1976
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Persistent link: https://EconPapers.repec.org/RePEc:bla:jamest:v:27:y:1976:i:3:p:129-146

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