Relevance weighting of search terms
- 1 May 1976
- journal article
- research article
- Published by Wiley in Journal of the American Society for Information Science
- Vol. 27 (3) , 129-146
- https://doi.org/10.1002/asi.4630270302
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.Keywords
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