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arXiv 1504.01709cs.FL
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无拷贝代价寄存器自动机:结构、表达性和闭包性质

Copyless Cost-Register Automata: Structure, Expressiveness, and Closure Properties

Filip Mazowiecki, Cristian Riveros

摘要:

成本寄存器自动机(CRA)及其子类无拷贝CRA是最近由Alfred等人提出的一种新的计算字符串上函数的模型。我们研究了无拷贝CRA的一些结构特性、表现力和闭包特性。我们表明,无拷贝CRA是严格的表达比加权自动机,并没有关闭下反向操作。为了找到一个更好的类,我们对无拷贝CRA施加限制,它以一个新的鲁棒计算模型成功结束,该模型在反向和其他扩展下是封闭的。

英文摘要:

Cost register automata (CRA) and its subclass, copyless CRA, were recently proposed by Alur et al. as a new model for computing functions over strings. We study some structural properties, expressiveness, and closure properties of copyless CRA. We show that copyless CRA are strictly less expressive than weighted automata and are not closed under reverse operation. To find a better class we impose restrictions on copyless CRA, which ends successfully with a new robust computational model that is closed under reverse and other extensions.

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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