| 格值上下文无关文法对基于词的计算 |
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| 引用本文： | 杨春志,张超.格值上下文无关文法对基于词的计算[J].重庆交通大学学报(自然科学版),2009,28(4):804-806. |
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| 作者姓名： | 杨春志 张超 |
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| 作者单位： | 淮南师范学院,数学系,安徽,淮南,232001 |
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| 基金项目： | 安徽省高等学校青年教师科研资助计划项目 |
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| 摘 要： | 给出了当格半群满足交换律时,任何格值上下文无关文法都与格值Greibach范式文法等价,并利用Zadeh扩张原理,研究了格值Greibach范式文法对基于词的计算,最后得出文法对基于词的计算最终由对基于值的计算来实现。
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| 关 键 词： | 格半群 基于词的计算 上下文无关文法 |
Computing with Words via Lattice-Valued Context-Free Grammar |
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| YANG Chun-zhi,ZHANG Chao.Computing with Words via Lattice-Valued Context-Free Grammar[J].Journal of Chongqing Jiaotong University,2009,28(4):804-806. |
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| Authors: | YANG Chun-zhi ZHANG Chao |
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| Institution: | YANG Chun-zhi,ZHANG Chao(Departerment of Mathematics,Huainan Normal Institute,Anhui Huainan 232001,China) |
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| Abstract: | The lattice-valued context-free grammar is equivalent to the lattice-valued Greibach grammar when the lattice semigroups satisfy the commutative laws.According to Zadeh's extension principle,computing with words via lattice-valued context-free grammar is studied.Finally,this principle indicates that computing with words can be implemented with values with the price of a big amount of extra computations. |
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| Keywords: | lattice semigroups computing with words context-free grammar |
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