An Intuitive Interpretation of the Theory of Evidence in the Context of Bibliographical Indexing

35 Pages Posted: 23 Oct 2008

See all articles by Shimon Schocken

Shimon Schocken

affiliation not provided to SSRN

Date Written: April 1992

Abstract

Models of bibliographical Indexing concern the construction of effective keywordtaxonomies and the representation of relevance between document s andkeywords. The theory of evidence concerns the elicitation and manipulation ofdegrees of belief rendered by multiple sources of evidence to a common set ofpropositions. The paper presents a formal framework in which adaptive taxonomiesand probabilistic indexing are induced dynamically by the relevanceopinions of the library's patrons. Different measures of relevance and mechanismsfor combining them are presented and shown to be isomorphic to thebelief functions and combination rules of the theory of evidence. The paperthus has two objectives: (i) to treat formally slippery concepts like probabilisticindexing and average relevance, and (ii) to provide an intuitive justificationto the Dempster Shafer theory of evidence, using bibliographical indexing as acanonical example.

Keywords: Probabilistic indexing, measures of relevance, Dempster Shafer theory of evidence, evidential reasoning

Suggested Citation

Schocken, Shimon, An Intuitive Interpretation of the Theory of Evidence in the Context of Bibliographical Indexing (April 1992). NYU Working Paper No. IS-92-18, Available at SSRN: https://ssrn.com/abstract=1288495

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