arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2007.00571cs.LOcs.AI
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基于上下文知识和影响图的推理

Reasoning with Contextual Knowledge and Influence Diagrams

Vrije Universiteit Amsterdam(阿姆斯特丹自由大学);University of Milano-Bicocca(米兰比可卡大学)

Erman Acar, Rafael Peñaloza

摘要:

影响图(ID)是众所周知的形式主义扩展贝叶斯网络模型的决策情况下的不确定性。虽然他们是方便的决策理论工具,他们的知识表示能力是有限的,在捕捉其他关键的概念,如逻辑一致性。我们补充ID与轻量级的描述逻辑(DL)EL,以克服这些限制。我们考虑一个DL公理在某些上下文中成立的设置,但实际的上下文是不确定的。该框架受益于使用DL作为领域知识表示语言的便利性和ID的建模强度,以处理在上下文存在不确定性的情况下的决策。我们定义了相关的推理问题,并研究了它们的计算复杂性。

英文摘要:

Influence diagrams (IDs) are well-known formalisms extending Bayesian networks to model decision situations under uncertainty. Although they are convenient as a decision theoretic tool, their knowledge representation ability is limited in capturing other crucial notions such as logical consistency. We complement IDs with the light-weight description logic (DL) EL to overcome such limitations. We consider a setup where DL axioms hold in some contexts, yet the actual context is uncertain. The framework benefits from the convenience of using DL as a domain knowledge representation language and the modelling strength of IDs to deal with decisions over contexts in the presence of contextual uncertainty. We define related reasoning problems and study their computational complexity.

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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