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General directionality and the local behavior of argumentation semantics

机译:一般方向性和论证语义学的局部行为

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In abstract argumentation, the directionality principle conveys the intuition that, for an unattacked set, the choice of arguments that are part of an extension should only depend on the restriction of the framework to that set. Furthermore, having made such a choice, one should be able to select arguments from the rest of the framework so as to get an extension. In this paper we show how this idea can be generalized and used for formulating SCC-recursiveness as a stronger version of directionality. We argue that such properties characterize the information that is needed for computing the extensions of an argumentation semantics. We provide a formal approach for describing and comparing directionality-like properties. Our model provides a clear distinction between SCC-recursive semantics that use defense information and those that do not use it.
机译:在抽象论证中,方向性原则传达了一种直觉,即对于一个无攻击的集合,对作为扩展一部分的参数的选择应仅取决于框架对该集合的限制。此外,在做出了这样的选择之后,人们应该能够从框架的其余部分中选择参数,从而获得扩展。在本文中,我们展示了如何将此思想概括并用于将SCC递归表示为方向性的更强形式。我们认为,此类属性表征了计算论点语义扩展所需的信息。我们提供了一种描述和比较类似方向性的属性的正式方法。我们的模型在使用防御信息的SCC递归语义和不使用防御信息的SCC递归语义之间提供了明显的区别。

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