A review of representation issues and modeling challenges with influence diagrams

Concha Bielza, Manuel Gómez and Prakash P. Shenoy

Omega, 2011, vol. 39, issue 3, 227-241

Abstract: Since their introduction in the mid 1970s, influence diagrams have become a de facto standard for representing Bayesian decision problems. The need to represent complex problems has led to extensions of the influence diagram methodology designed to increase the ability to represent complex problems. In this paper, we review the representation issues and modeling challenges associated with influence diagrams. In particular, we look at the representation of asymmetric decision problems including conditional distribution trees, sequential decision diagrams, and sequential valuation networks. We also examine the issue of representing the sequence of decision and chance variables, and how it is done in unconstrained influence diagrams, sequential valuation networks, and sequential influence diagrams. We also discuss the use of continuous chance and decision variables, including continuous conditionally deterministic variables. Finally, we discuss some of the modeling challenges faced in representing decision problems in practice and some software that is currently available.

Keywords: Decision-making; under; uncertainty; Influence; diagrams; Probabilistic; graphical; models; Sequential; decision; diagrams; Unconstrained; influence; diagrams; Sequential; valuation; networks; Sequential; influence; diagrams; Partial; influence; diagrams; Limited; memory; influence; diagrams; Gaussian; influence; diagrams; Mixture; of; Gaussians; influence; diagrams; Mixture; of; truncated; exponentials; influence; diagrams; Mixture; of; polynomials; influence; diagrams (search for similar items in EconPapers)
Date: 2011
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (9)

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