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arXiv 1502.05040cs.AI
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信息融合辅助决策框架的设计

Design of a Framework to Facilitate Decisions Using Information Fusion

Military Technical College(军事技术学院);Arab Academy for Information Systems(阿拉伯信息系统学院);Azhar University(爱资哈尔大学)

Tamer M. Abo Neama, Ismail A. Ismail, Tarek S. Sobh, M. Zaki

摘要:

信息融合是一个先进的研究领域,可以帮助决策者提高他们的决策。本文旨在设计一个新的多层框架,可以支持执行决策的过程中获得的信念,使用信息融合。由于跨越某些假设和决策的计算信念之间的差距不是一件容易的任务,因此所提出的框架由以下层组成,以便提供合适的架构(有序的自底向上的):1.使用信息融合方法组合基本信念分配的层。这种方法利用Dezert-Smarandache理论,DSmT和比例冲突再分配来提供更现实的最终信念。2.一个层,用于从相应的最终信念计算底层命题的pignistic概率。3.使用贝叶斯网络执行概率推理的层,该层可以从命题的pignistic概率中获得命题的可能原因。4.对系统决策进行排序最终用于支持决策制定。为了验证这一概念,在不同的运行条件下进行了案例研究,并指出:1。使用DSmT的信息融合不仅产生更现实的信念,但也可靠的pignistic概率的基本命题。2.利用pignistic概率将信息融合与贝叶斯网络集成提供了概率推理,并使得能够基于用于底层命题的基于信念的概率和用于相应原因的基于贝叶斯的概率两者来进行决策。相对于其他信息融合系统的比较研究所提出的框架证实了其优越性,以支持决策。

英文摘要:

Information fusion is an advanced research area which can assist decision makers in enhancing their decisions. This paper aims at designing a new multi-layer framework that can support the process of performing decisions from the obtained beliefs using information fusion. Since it is not an easy task to cross the gap between computed beliefs of certain hypothesis and decisions, the proposed framework consists of the following layers in order to provide a suitable architecture (ordered bottom up): 1. A layer for combination of basic belief assignments using an information fusion approach. Such approach exploits Dezert-Smarandache Theory, DSmT, and proportional conflict redistribution to provide more realistic final beliefs. 2. A layer for computation of pignistic probability of the underlying propositions from the corresponding final beliefs. 3. A layer for performing probabilistic reasoning using a Bayesian network that can obtain the probable reason of a proposition from its pignistic probability. 4. Ranking the system decisions is ultimately used to support decision making. A case study has been accomplished at various operational conditions in order to prove the concept, in addition it pointed out that: 1. The use of DSmT for information fusion yields not only more realistic beliefs but also reliable pignistic probabilities for the underlying propositions. 2. Exploiting the pignistic probability for the integration of the information fusion with the Bayesian network provides probabilistic inference and enable decision making on the basis of both belief based probabilities for the underlying propositions and Bayesian based probabilities for the corresponding reasons. A comparative study of the proposed framework with respect to other information fusion systems confirms its superiority to support decision making.

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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