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Cited by 433

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USING PROBABILISTIC MODELS OF DOCUMENT RETRIEVAL WITHOUT RELEVANCE INFORMATION

CROFT, W.B., HARPER, D.J.·1979·Journal of Documentation

Abstract

Most probabilistic retrieval models incorporate information about the occurrence of index terms in relevant and non‐relevant documents. In this paper we consider the situation where no relevance information is available, that is, at the start of the search. Based on a probabilistic model, strategies are proposed for the initial search and an intermediate search. Retrieval experiments with the Cranfield collection of 1,400 documents show that this initial search strategy is better than conventional search strategies both in terms of retrieval effectiveness and in terms of the number of queries that retrieve relevant documents. The intermediate search is shown to be a useful substitute for a relevance feedback search. Experiments with queries that do not retrieve relevant documents at high rank positions indicate that a cluster search would be an effective alternative strategy.

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Metadata

Authors
CROFT, W. B., & HARPER, D. J.
Venue
Journal of Documentation
Publisher
Emerald
Published
1979-04-01
Volume
35
Issue
4
Pages
285-295
ISSN
0022-0418 (ISSN-L)
OpenAlex
W2102046030
Cited by
433
References
0
FWCI
29.00
Type
journal article
Language
en
Open access
closed

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