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arXiv 1302.6843cs.AI
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信度网络中概率推理的全局条件

Global Conditioning for Probabilistic Inference in Belief Networks

Massachusetts Institute of Technology(麻省理工学院);Stanford University(斯坦福大学);Aalborg University(奥尔堡大学)

Ross D. Shachter, Stig K. Andersen, Peter Szolovits

摘要:

在本文中,我们提出了一种新的方法来概率推理的信念网络,全球条件,这是一个简单的推广Pearl(1986年b)的方法的环割集条件。我们表明,整体条件作用,以及循环割集条件作用,可以被认为是一个特殊的情况下,Lauritzen和Spiegelhalter(1988)的方法,由詹森等人(1990年a; 1990年b)完善。尽管如此,这种方法为并行处理提供了新的机会,并且在顺序处理的情况下,为存储器提供了时间的折衷。我们还展示了如何混合方法(Suermondt和其他人1990年)结合循环割集条件与詹森的方法可以被视为在我们的框架内。通过探索这些方法之间的关系,我们开发了一个统一的框架,在这个框架中,每种方法的优点可以成功地结合起来。

英文摘要:

In this paper we propose a new approach to probabilistic inference on belief networks, global conditioning, which is a simple generalization of Pearl's (1986b) method of loopcutset conditioning. We show that global conditioning, as well as loop-cutset conditioning, can be thought of as a special case of the method of Lauritzen and Spiegelhalter (1988) as refined by Jensen et al (199Oa; 1990b). Nonetheless, this approach provides new opportunities for parallel processing and, in the case of sequential processing, a tradeoff of time for memory. We also show how a hybrid method (Suermondt and others 1990) combining loop-cutset conditioning with Jensen's method can be viewed within our framework. By exploring the relationships between these methods, we develop a unifying framework in which the advantages of each approach can be combined successfully.

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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