算法

KNN：

http://blog.csdn.net/zouxy09/article/details/16955347

线性回归：

http://www.cnblogs.com/hhh5460/p/5786115.html

http://blog.csdn.net/sun_shengyun/article/details/53636734

决策树：

http://www.cnblogs.com/leoo2sk/archive/2010/09/19/decision-tree.html

库：

http://blog.csdn.net/qq_23052951/article/details/53729656