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Please use this identifier to cite or link to this item: http://hdl.handle.net/2451/14334

Title: AN INTUITIVE INTERPRETATION OF THE THEORY OF EVIDENCE IN THE CONTEXT OF BIBLIOGRAPHICAL INDEXING
Authors: Schocken, Shimon
Keywords: Probabilistic indexing
measures of relevance
Dempster Shafer theory of evidence
evidential reasoning
Issue Date: Apr-1992
Publisher: Stern School of Business, New York University
Series/Report no.: IS-92-18
Abstract: Models of bibliographical Indexing concern the construction of effective keyword taxonomies and the representation of relevance between document s and keywords. The theory of evidence concerns the elicitation and manipulation of degrees of belief rendered by multiple sources of evidence to a common set of propositions. The paper presents a formal framework in which adaptive taxonomies and probabilistic indexing are induced dynamically by the relevance opinions of the library's patrons. Different measures of relevance and mechanisms for combining them are presented and shown to be isomorphic to the belief functions and combination rules of the theory of evidence. The paper thus has two objectives: (i) to treat formally slippery concepts like probabilistic indexing and average relevance, and (ii) to provide an intuitive justification to the Dempster Shafer theory of evidence, using bibliographical indexing as a canonical example.
URI: http://hdl.handle.net/2451/14334
Appears in Collections:IOMS: Information Systems Working Papers

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