Inside-Outside Algorithm for Macro Grammars

被引:0
|
作者
Kambe, Ryuta [1 ]
Kobayashi, Naoki [1 ]
Sato, Ryosuke [1 ]
Shinohara, Ayumi [2 ]
Yoshinaka, Ryo [2 ]
机构
[1] Univ Tokyo, Tokyo, Japan
[2] Tohoku Univ, Grad Sch Informat Sci, Sendai, Miyagi, Japan
关键词
macro grammars; stochastic grammars; inside-outside algorithm; types;
D O I
暂无
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
We propose an inside-outside algorithm for stochastic macro grammars. Our approach is based on types, which has been inspired by type-based approaches to reasoning about functional programs and higher-order grammars. By considering type derivations instead of ordinary word derivation sequences, we can naturally extend the standard inside-outside algorithm for stochastic context-free grammars to obtain the algorithm for stochastic macro grammars. We have implemented the algorithm and confirmed its effectiveness through an application to the learning of macro grammars.
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页码:32 / 46
页数:15
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