理学 【基本概念】 释 probabilistic context-free grammars; PCFG 概率句法分析 在上下文无关文法的基础上对每个规则加以概率限制，从而就可以求出一个句子的特定语法树的概率值的方法。又称概率上下文无关语法。
人工智能 计算语言学 释文 probabilistic context free grammar, PCFG 概率上下文无关文法
- benzo quinoline
- benzoquinone
- benzothiadiazole
- benzothiazine
- benzothiazole
- benzothiophene
- benzotriazine
- benzotriazole
- benzoxadiazole
- benzoxazine
- benzoxazine resin
- benzoxazine resin matrix composite
- benzoxazole
- benzoyl chloride
- benzoylglycine
- benzoylpyrazolone herbicides
- Benzuna Chiefs’ Delegation to London
- benzvalene
- benzyladenine
- benzyl alcohol
- benzyl alcohol; phenylcarbinol
- benzylamine
- benzylaminopurine
- benzyl arsonic acid
- benzylbenzene