Chi-square tests and z-tests are utilized to see if the differences in the distributions of vague expressions in each corpus are significant.
作者针对航海英语库(NEC)，轮机英语库(MEE)，海事条约英语库(MTE)，科技英语库(T4)，以及新闻英语库(LOBA，BROWNA)六个语料库中出现的模糊词，采用一系列的卡方测验和z值测验，比较了航海英语库中的模糊词和其它语体中模糊词的分布特点。
The four kinds of feature selection statistics include Chi-square,information gain,and mutual information and cross entropy,and the four corresponding feature sets are obtained.
这四种特征选择采用的统计方法是:卡方、信息增益、互信息、交叉熵。
This article has described the reference selection,the accuracy control,the cutter selection and chucking method for the machining of the die plate used for certain military product.
介绍了某军工产品模板加工的基准选择、精度控制、装卡方式、刀具选用等。
