Summary, Decision Trees and Influence Diagrams

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  • 8/17/2019 Summary, Decision Trees and Influence Diagrams

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    What methods hae been developed to help elicit decision tree representations from decision!

    makers * one ma"or method, much favored by some decision analysts, is that of influence diagrams.

    Which are designed to summarize the dependencies that are seen to exist among events and acts within a

    decision.

    +ne step!by!step procedure for turning an influence diagram into a decision tree is as follows • Identify a node with no arrows pointing into it

    • If there is a choice between a decision node and an event node, choose the decision node

    • /lace the node at the beginning of the tree and remove the node from the influence diagram

    • For the now!reduced diagram, choose another node with no arrows pointing into it. If there is a

    choice, a decision node should be chosen

    • /lace this node next in the tree and remove it from the influence diagram

    • -epeat the above procedure until all the nodes have been removed from the influence diagram


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Bayesian Networks, Influence Diagrams, and Games in Simulation Metamodeling

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