A Graph-Theoretic Analysis of Information Value
نویسندگان
چکیده
We derive qualitative relationships about the informational relevance of variables in graph ical decision models based on a considera tion of the topology of the models. Specifi cally, we identify dominance relations for the expected value of information on chance vari ables in terms of their position and relation ships in influence diagrams. The qualitative relationships can be harnessed to generate nonnumerical procedures for ordering uncer tain variables in a decision model by their informational relevance.
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