Secondly, in computing N-gram s probabilities, comparing with former commonly used MLE (maximum likelihood estimation) and Add-One smoothing method, we chose Katz smoothing method.
该方法在计算N元概率时采用统计语言模型中常用的Katz 平滑算法,对计算N元概率时所用的最大似然法和加1平滑算法进行了改进,同时采用了将字符串映射到整数的方法设计了N元短语的词典结构,以降低分词系统的空间／时间复杂度。
Metabolic flux analysis of elemental nitrogen for L-tryptophan biosynthesis in yeast;
酵母合成的~(15)NL-色氨酸中N元素代谢通量的分析
The problem of different distances determined by a set of n points is a very important problem raised by P Erds.
P是k-维空间的n元集,记P中两点确定的最大距离为dmax。
The paper introduced the basic conception of math of relation database model,N-ple relation,fordered N-ple and fordered sets.
给出了关系数据库模型的数学基本概念 ,如N元关系、N元有序组及N元有序组集合。