记录下找到的链接，方便之后查看与学习。
https://ayonel.me/index.php/2017/05/04/svm-principle/
http://blog.csdn.net/lidefu1000810218/article/details/53507015
http://www.cnblogs.com/pinard/p/6117515.html
sklearn中SVM调参说明及经验总结 ：https://xijunlee.github.io/2017/03/29/sklearn%E4%B8%ADSVM%E8%B0%83%E5%8F%82%E8%AF%B4%E6%98%8E%E5%8F%8A%E7%BB%8F%E9%AA%8C%E6%80%BB%E7%BB%93/