ICTClAS分词系统是由中科院计算所的张华平、刘群所开发的一套获得广泛好评的分词系统，难能可贵的是该版的Free版开放了源代码，该文档是对ICTClAS分词系统的详细介绍。-ICTClAS segmentation system by the Hua-Ping Zhang from the Chinese Academy of Sciences, received wide acclaim Qun developed a word segmentation system, it is valuable to the version of the Free version of the open source code, the document is a detailed the ICTClAS segmentation system.