基于EM算法的汉语自动分词

汉语自动分词是中文信息处理中的基础课题。本文首先对汉语分词的基本概念与应用,以及汉语分词 的基本方法进行了概述。接着引出一种根据词的出现概率、基于极大似然原则构建的汉语自动分词的零阶马尔可 夫模型,并重点剖析了EM(Expectation2Maximization) 算法,对实验结果进行了分析。最后对算法进行了总结与讨论。

GIS编程教程

Major objectives of this course: (1) Learning GIS programming languages such as Arcview's Avenue, ArcObjects VBA, etc, for customizing GIS applications, or implementing spatial models which could not be done through existing functions provided by software. (2) Integrating external GIS models with GIS software through loose coupling, such as models coded in C++. (3) Promoting self-motivation in applying GIS programming knowledge to geographic researches, which can be either physical/environmental applications, or human/urban applications. Students are encouraged to solve their research problems (thesis, dissertation, or other research topics) using GIS programming. <br>