一、线性回归
损失函数 https://blog.csdn.net/alw_123/article/details/82193535
正规方程解， https://blog.csdn.net/alw_123/article/details/82825785#comments
最小二乘法及算法代码 https://blog.csdn.net/qq_32864683/article/details/80368135
梯度下降讲解 https://www.cnblogs.com/wallacup/p/6017378.html
拟然函数 https://www.cnblogs.com/softlin/p/6219372.html?utm_source=itdadao&utm_medium=referral
原文：https://www.cnblogs.com/yuluoxingkong/p/11913680.html