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arXiv 1909.08233cs.LOcs.CC
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认知逻辑程序:一种不同的世界观

Epistemic Logic Programs: A Different World View

Michael Morak

摘要:

认知逻辑程序(ELP)是回答集程序设计(ASP)的一种扩展,它引入了认知算子,近年来又受到了研究界的关注。传统上,评估ELP会产生一组世界观,每个世界观都是一组答案集。在本文中,我们提出了另一种世界观的定义,将它们表示为三值赋值,其中每个原子可以总是真,总是假,或者都不是。基于几个例子,我们表明,这个定义是自然和直观的。我们还研究了这些新语义的相关计算特性,并探讨了其他概念,如强等价,是如何受到影响的。

英文摘要:

Epistemic Logic Programs (ELPs), an extension of Answer Set Programming (ASP) with epistemic operators, have received renewed attention from the research community in recent years. Classically, evaluating an ELP yields a set of world views, with each being a set of answer sets. In this paper, we propose an alternative definition of world views that represents them as three-valued assignments, where each atom can be either always true, always false, or neither. Based on several examples, we show that this definition is natural and intuitive. We also investigate relevant computational properties of these new semantics, and explore how other notions, like strong equivalence, are affected.

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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