Representing Asymmetric Decision Problems Using Coarse Valuations
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Issue Date
2004-04Author
Liu, Liping
Shenoy, Prakash P.
Publisher
Elsevier Science Publishers B. V.
Format
280839 bytes
Type
Article
Metadata
Show full item recordAbstract
A valuation-based system approach to knowledge representation has shown its advantages in improving computational efficiency and in allowing many decision models including belief networks. This study applies the Dempster–Shafer theory of
belief functions and extends its framework to allow coarse valuations, which admit incomplete specification of probabilities and utilities and, therefore, are more flexible in representing asymmetric decision problems. It presents an algorithm for making inferences and decisions in systems using coarse valuations. It shows that a coarse valuation-based system provides a most
natural and compact representation of decision problems.
ISSN
0167-9236Collections
Citation
Decision Support Systems, Vol. 37, Issue 1, 2004, pp. 119--135.
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