Uncertainty in Artificial Intelligence
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Information/Relevance Influence Diagrams
Ali Jenzarli
Abstract:
In this paper we extend the influence diagram (ID) representation for decisions under uncertainty. In the standard ID, arrows into a decision node are only informational; they do not represent constraints on what the decision maker can do. We can represent such constraints only indirectly, using arrows to the children of the decision and sometimes adding more variables to the influence diagram, thus making the ID more complicated. Users of influence diagrams often want to represent constraints by arrows into decision nodes. We represent constraints on decisions by allowing relevance arrows into decision nodes. We call the resulting representation information/relevance influence diagrams (IRIDs). Information/relevance influence diagrams allow for direct representation and specification of constrained decisions. We use a combination of stochastic dynamic programming and Gibbs sampling to solve IRIDs. This method is especially useful when exact methods for solving IDs fail.
Keywords: Decision analysis, influence diagrams, aysmmetric decision problems, stochastic dyna
Pages: 329-337
PS Link:
PDF Link: /papers/95/p329-jenzarli.pdf
BibTex:
@INPROCEEDINGS{Jenzarli95,
AUTHOR = "Ali Jenzarli ",
TITLE = "Information/Relevance Influence Diagrams",
BOOKTITLE = "Proceedings of the Eleventh Conference Annual Conference on Uncertainty in Artificial Intelligence (UAI-95)",
PUBLISHER = "Morgan Kaufmann",
ADDRESS = "San Francisco, CA",
YEAR = "1995",
PAGES = "329--337"
}


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