机器学习相关问题与资源下载。

资源分享:

1、po一篇免费的停用字下载:
https://blog.youkuaiyun.com/u010533386/article/details/51458591
复制以后，粘贴保存到txt文件。然后利用python读取该txt文件时注意使用语句:

stpwrdlst = open(stopword_path).read().replace('\n', ' ').split()

来调整格式，否则程序会出现警告:

UserWarning: Your stop_words may be inconsistent with your preprocessing. Tokenizing the stop words generated tokens [·····] not in stop_words. sorted(inconsistent))

博客笔记:

一、机器学习相关:
1、关于矩阵求协方差详细讲解
http://www.elecfans.com/dianzichangshi/20171205594693.html
2、马氏距离与欧氏距离讲解:
https://blog.youkuaiyun.com/sinat_27652257/article/details/80483325
3、关于读取的文件永久转化为对象，方便下次读取讲解: