影响图的函数求解

EVALUATING INFLUENC DIAGRAMS IN FUNCTION LEVEL

影响图是表示与求解决策问题的图形工具，它直观地表示变量间的条件独立关系和决策问题的结构。本文讨论用树形结构表示结点的数据结构，有效地解决了结构上的不对称性问题；并研究在函数层上求解影响图函数进行各种影响图变换时，结点数据结构的变化规律。

An influence diagrams is a graphical medeling tool of representating and solving decision,it directly represents the conditional independence relations a-mong variables and the structure of decison problems. The paper discusses how to show the data structure of nedes with tree which represents easily asymmetry of structure of decision problem,and study how to alternating the data structure when operatingvarious transfers of influence diagrams.