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Titolo:
Modifications of uncertain data: A Bayesian framework for belief revision
Autore:
Dey, D; Sarkar, S;
Indirizzi:
Univ Washington, Sch Business Adm, Dept Management Sci, Seattle, WA 98195 USA Univ Washington Seattle WA USA 98195 anagement Sci, Seattle, WA 98195 USA Univ Texas, Sch Management, Richardson, TX 75803 USA Univ Texas Richardson TX USA 75803 h Management, Richardson, TX 75803 USA
Titolo Testata:
INFORMATION SYSTEMS RESEARCH
fascicolo: 1, volume: 11, anno: 2000,
pagine: 1 - 16
SICI:
1047-7047(200003)11:1<1:MOUDAB>2.0.ZU;2-Z
Fonte:
ISI
Lingua:
ENG
Keywords:
data uncertainty; probabilistic relational model; data updating;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Citazioni:
15
Recensione:
Indirizzi per estratti:
Indirizzo: Dey, D Univ Washington, Sch Business Adm, Dept Management Sci, Seattle, WA98195 USA Univ Washington Seattle WA USA 98195 nt Sci, Seattle, WA 98195 USA
Citazione:
D. Dey e S. Sarkar, "Modifications of uncertain data: A Bayesian framework for belief revision", INF SYST R, 11(1), 2000, pp. 1-16

Abstract

The inherent uncertainty pervasive over the real world often forces lousiness decisions to be made using uncertain data. The conventional relational model does not have the ability to handle uncertain data. In recent years, several approaches have been proposed in the literature for representing uncertain data by extending the relational model, primarily using probabilitytheory. The aspect of database modification, however, has not been addressed in prior research. It is clear that any modification of existing probabilistic data, based on new information, amounts to the revision of one's belief about real-world objects. In this paper, we examine the aspect of belief revision and develop a generalized algorithm that can be used for the modification of existing data in a probabilistic relational database. The belief revision scheme is shown to be closed, consistent, and complete.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/09/20 alle ore 21:42:48