Document (#9140)

Author

Robertson, S.E.
Sparck Jones, K.

Title

Relevance weighting of search terms

Source

Journal of the American Society for Information Science. 27(1976), S.129-146

Year

1976

Abstract

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

Theme

Computerlinguistik

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4. Robertson, S.E.: OKAPI at TREC-3 (1995) 0.21

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5. Lioma, C.; Ounis, I.: ¬A syntactically-based query reformulation technique for information retrieval (2008) 0.21

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