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arXiv 1302.4963cs.AI
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信息/相关性影响图

Information/Relevance Influence Diagrams

The University of Tampa(坦帕大学)

Ali Jenzarli

摘要:

在本文中,我们扩展的影响图(ID)表示的不确定性下的决策。在标准ID中,指向决策节点的箭头只是信息性的;它们并不代表对决策者可以做什么的约束。我们只能间接地表示这样的约束,使用指向决策子项的箭头,有时还向影响图添加更多变量,从而使ID更加复杂。使用影响图的用户通常希望用箭头将约束表示为决策节点。我们通过允许相关性箭头进入决策节点来表示对决策的约束。我们称之为表示信息/相关性影响图(IRID)。信息/相关性影响图允许直接表示和规范的约束决策。我们使用随机动态规划和吉布斯抽样的组合来解决IRID。当求解ID的精确方法失败时,此方法特别有用。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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