Threshold values and Boolean retrieval systems

Authors:
Duncan A. Buell;Donald H. Kraft
Affiliations:
-;-
Venue:
Information Processing and Management: an International Journal
Year:
1981

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Abstract

Several papers have appeared that have analyzed recent developments in the problem of processing, in a document retrieval system, queries expressed as Boolean expressions. The purpose of this paper is to continue that analysis. We shall show that the concept of threshold values resolves the problems inherent with relevance weights. Moreover, we shall explore possible evaluation mechanisms for retrieval of documents, based on fuzzy-set-theoretic considerations.