Clark, Alexander. "Unsupervised induction of stochastic context-free grammars using distributional clustering." Conference on Natural Language Learning, 2001. ( PDF) 采用分布聚类的随机上下文无关文法的无监督归纳学习〉。《自然语言学习会议,2001年》。(PDF)
Modular and Knock-together Method of Building the Context-free Grammar in Language 应用模块法杂凑语言的上下文无关文法
Based on recursive functions defined on context-free language, LFC ( language for context free recursive function) is a formal specification language and fits for dealing with phrase structure. 以上下文无关语言上的递归函数为基础的语言LFC(languageforcontextfreerecursivefunction)是一种形式规约语言,适于处理短语结构。
A computational mechanism for context-free language parsing is proposed in this paper, which is called role inverse algorithm. 给出了面向上下文无关语言的句法分析的一种计算机制:角色反演算法。
Storage Mapping of Syntax Tree for Context-Free Language and its Application 一种上下文无关语言语法树的存储模式及其应用
Since it has been already proved that CL is not a context-free language, the position of CL in the language classes is thus entirely determined. 由于CL不是上下文无关语言,直线链码集CL在语言类中的归属就被完全确定了。
The research shows that if and only if a fuzzy language is produced by a max-product fuzzy context-free grammar, it can be accepted by a max-product fuzzy pushdown automaton, so the max-product fuzzy context-free language can be recognized automatically. 研究表明,当且仅当最大乘积型Fuzzy上下文无关文法产生的语言集能被最大乘积型Fuzzy下推自动机接受时,能达到自动识别最大乘积Fuzzy上下文无关语言的目的。
Context-free grammar which is aslo referred to as phrase structure grammar, is the most commonly mathematical system used to simulate the composition structure of natural language. Syntactic analysis is based on context-free grammar to identify sentences and assign sentences 'structure. 上下文无关语法又称为短语结构语法,是模拟自然语言成分结构的最常用的数学系统。此时就可以对句子进行句法剖析了,也就是根据上下文无关语法识别一个句子并给句子指派结构。
Diagonal computing model is widely used, such as local alignment algorithm in bioinformatics area, algorithm of context-free grammar in the natural language processing, parallel sorting network algorithms in the basic research and so on. 对角线模型的应用非常广泛,例如生物信息学中的局部序列比对算法、自然语言处理领域中的上下文无关文法等。