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arXiv 1902.08149cs.FLcs.LO
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非周期加权自动机与加权一阶逻辑

Aperiodic Weighted Automata and Weighted First-Order Logic

Manfred Droste, Paul Gastin

摘要:

根据Schützenberger,McNaughton和Papert在1970年代的基本结果,一阶可定义语言和非周期语言的类别是一致的。在这里,我们将这种等价性扩展到定量设置。为此,加权自动机形成了一个通用的和广泛研究的模型。我们定义了一个合适的加权一阶逻辑的概念。然后,我们证明了这种加权一阶逻辑和非周期多项式模糊加权自动机具有相同的表达能力。此外,我们还得到了适当的加权子逻辑和无二义性或无二义性的非周期加权自动机的等价结果。我们的结果适用于一般的重量结构,包括所有半环,平均计算的成本,有界格,和其他。

英文摘要:

By fundamental results of Schützenberger, McNaughton and Papert from the 1970s, the classes of first-order definable and aperiodic languages coincide. Here, we extend this equivalence to a quantitative setting. For this, weighted automata form a general and widely studied model. We define a suitable notion of a weighted first-order logic. Then we show that this weighted first-order logic and aperiodic polynomially ambiguous weighted automata have the same expressive power. Moreover, we obtain such equivalence results for suitable weighted sublogics and finitely ambiguous or unambiguous aperiodic weighted automata. Our results hold for general weight structures, including all semirings, average computations of costs, bounded lattices, and others.

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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