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arXiv 1206.6844cs.AI
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从影响图到多操作符集群DAG

From influence diagrams to multi-operator cluster DAGs

LAAS-CNRS(法国国家科学研究中心自动系统分析与架构实验室);INRA(法国国家农业食品与环境研究院);ONERA(法国航空航天研究院)

Cedric Pralet, Thomas Schiex, Gerard Verfaillie

摘要:

存在几种使用局部计算来求解影响图的架构,例如Shenoy-Shafer、HUGIN或Lazy Propagation架构。他们都扩展了通常的变量消除算法由于使用所谓的“潜力”。在本文中,我们介绍了一种新的架构,称为多算子集群DAG架构,它可以产生分解与改进的约束诱导宽度,从而诱导潜在的指数收益。其原理是受益于影响图的复合性质,而不是使用统一的潜力,以便更好地分析问题结构。

英文摘要:

There exist several architectures to solve influence diagrams using local computations, such as the Shenoy-Shafer, the HUGIN, or the Lazy Propagation architectures. They all extend usual variable elimination algorithms thanks to the use of so-called 'potentials'. In this paper, we introduce a new architecture, called the Multi-operator Cluster DAG architecture, which can produce decompositions with an improved constrained induced-width, and therefore induce potentially exponential gains. Its principle is to benefit from the composite nature of influence diagrams, instead of using uniform potentials, in order to better analyze the problem structure.

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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