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Using Dempster-Shafer's Theory of Evidence to combine aspects of information use

Ruthven, I. and Lalmas, M. (2002) Using Dempster-Shafer's Theory of Evidence to combine aspects of information use. Journal of Intelligent Information Systems, 19 (3). pp. 267-301. ISSN 0925-9902

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Abstract

In this paper we propose a model for relevance feedback. Our model combines evidence from user's relevance assessments with algorithms describing how words are used within documents. We motivate the use of the Dempster-Shafer framework as an appropriate theory for modelling combination of evidence. This model also incorporates the uncertain nature of information retrieval and relevance feedback. We discuss the sources of uncertainty in combining evidence in information retrievel and the importance of combining evidence in relevance feedback. We also present results from a series of experiments that highlight various aspects of our approach and discuss our findings.

Item type: Article
ID code: 1892
Keywords: infromation retrieval, relevance feedback, uncertain evidence, Dempster-Shafer's theory of evidence, Electronic computers. Computer science, Artificial Intelligence, Hardware and Architecture, Software, Computer Networks and Communications, Information Systems
Subjects: Science > Mathematics > Electronic computers. Computer science
Department: Faculty of Science > Computer and Information Sciences
Depositing user: Strathprints Administrator
Date Deposited: 29 Oct 2006
Last modified: 04 Sep 2014 10:26
URI: http://strathprints.strath.ac.uk/id/eprint/1892

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