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arXiv 1106.0664cs.AI
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空间同余推理的复杂性

The Complexity of Reasoning about Spatial Congruence

M. Cristani

摘要:

在人工智能的最新文献中,对于用于表示时空知识的各种定性关系代数,对代数子集的推理问题的计算复杂性进行了深入的研究。这些研究的主要目的是描述一组限制的极大易处理的子代数,理想情况下,在一个详尽的方式相对于托管代数。本文引入了一种新的空间同余推理代数,证明了空间代数MC-4中的可满足性问题是NP-完全的,并基于三个最大易处理子类的个体化给出了代数中易处理性的一个完全分类,其中一个子类包含基本关系.这三个代数是由16个关系中的14个、10个和9个关系形成的,这些关系形成了完整的代数。

英文摘要:

In the recent literature of Artificial Intelligence, an intensive research effort has been spent, for various algebras of qualitative relations used in the representation of temporal and spatial knowledge, on the problem of classifying the computational complexity of reasoning problems for subsets of algebras. The main purpose of these researches is to describe a restricted set of maximal tractable subalgebras, ideally in an exhaustive fashion with respect to the hosting algebras. In this paper we introduce a novel algebra for reasoning about Spatial Congruence, show that the satisfiability problem in the spatial algebra MC-4 is NP-complete, and present a complete classification of tractability in the algebra, based on the individuation of three maximal tractable subclasses, one containing the basic relations. The three algebras are formed by 14, 10 and 9 relations out of 16 which form the full algebra.

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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