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