【摘要】 规则量化问题是基于规则与统计相结合的计算语言模型的关键性问题 .首先描述了一个基于规则与统计相结合的计算语言模型 ,从而引出了规则结合度的概念 ,并提出一种基于互信息的规则量化方法 .该方法既给出了一条规则的实用性的定量评价 ,又为基于规则与统计相结合的计算语言模型提供了一个重要的规则参量 .通过实验指出该方法对系统规则集的筛选与计算语言模型中规则与统计结合机制的优化的重要指导意义更多还原

【Abstract】 The rule quantification problem is the key to a hybrid language model which integrates grammar rules into a statistical language model. This paper discusses a new type of hybrid language model, from which the concept of rule combination degree is derived, and then presents a mutual\|information\|based approach to rule quantification. The experiments show that this approach is a valuable guide for both the selection of system rule base and the combination mechanism of rule and statistic.更多还原