two word stage

New model for text feature selection based on twin words relationship;

一种基于双词关联的文本特征选择模型

Bigram is added to restrain the LHMM,and the recognition algorithm restrained by bigram is presented.

在模型中加入双词文法约束，然后给出文法约束下的新的识别算法，新识别算法基于Ｖｉｔｅｒｂｉ算法和分层构筑思想之上。