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| Title: | Representing Asymmetric Decision Problems Using Coarse Valuations |
| Authors: | Liu, Liping
Shenoy, Prakash P. |
| Keywords: | Decision support systems
Expert systems
Belief functions
Asymmetric decision problems
valuation-based systems |
| Issue Date: | Apr-2004 |
| Publisher: | Elsevier Science Publishers B. V. |
| Extent: | 280839 bytes |
| Type: | Article |
| Citation: | Decision Support Systems, Vol. 37, Issue 1, 2004, pp. 119--135. |
| Abstract: | 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. |
| URI: | http://hdl.handle.net/1808/152 |
| ISSN: | 0167-9236 |
| Appears in Collections: | School of Business Articles
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