摘要： 1，目录和前言 https://blog.csdn.net/itplus/article/details/37969519 2，预备知识：逻辑回归、贝叶斯公式、霍夫曼树 https://blog.csdn.net/itplus/article/details/37969635 3，背景知识：统计语言 阅读全文