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arXiv 2402.06397cs.CCcs.AIcs.DScs.LOmath.CO
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使用SAT求解器自动寻找硬度归约

Finding hardness reductions automatically using SAT solvers

Freie Universität Berlin(柏林自由大学);Technische Universität Berlin(柏林工业大学);Charles University(查理大学)

Helena Bergold, Manfred Scheucher, Felix Schröder

AI总结:

本文提出一种基于SAT的自动化框架,用于构造归约小工具,并证明多种组合结构(包括内部三元系统及其高维推广)的完备性问题为NP完全。

摘要:

在本文中,我们证明了完备性问题,即判断一个部分结构是否可以完备化为一个完整结构的决策问题,对于许多组合结构而言是NP完全的。虽然文献中大多数归约的小工具都是手工构造的,我们提出了一种算法,以完全自动化的方式构造小工具。利用我们基于SAT的框架,我们首次对带有禁止子结构的符号映射上的完备性问题进行了深入研究,对数千个结构进行了分类,其中完备性问题是NP完全的。我们的列表特别包括内部三元系统,这是Knuth为平面点配置的公理化而引入的。最后但同样重要的是,我们给出了一个无限族的结构,将内部三元系统推广到更高维度,对于这些结构,完备性问题也是NP完全的。

英文摘要:

In this article, we show that the completion problem, i.e. the decision problem whether a partial structure can be completed to a full structure, is NP-complete for many combinatorial structures. While the gadgets for most reductions in literature are found by hand, we present an algorithm to construct gadgets in a fully automated way. Using our framework which is based on SAT, we present the first thorough study of the completion problem on sign mappings with forbidden substructures by classifying thousands of structures for which the completion problem is NP-complete. Our list in particular includes interior triple systems, which were introduced by Knuth towards an axiomatization of planar point configurations. Last but not least, we give an infinite family of structures generalizing interior triple system to higher dimensions for which the completion problem is NP-complete.

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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