Kullback–Leibler divergence(相对熵，KL距离，KL散度):[理论](https://mp.weixin.qq.com/s?__biz=MzU1NzU2MzcyMw==&mid=2247483828&idx=1&sn=df3a8841d235b0d44b372e0e74a9e0eb&chksm=fc32ab90cb4522865a96bab7f271da6d6d373f1430afa376e5f414c3bd7e46851ee70430f0d0&token=790768732&lang=zh_CN#rd)
线性回归:[理论](https://mp.weixin.qq.com/s?__biz=MzU1NzU2MzcyMw==&mid=2247483846&idx=1&sn=b1aa2ab4165cce3a80eb399a6b7b0fbe&chksm=fc32abe2cb4522f41fba3920c8f7f1bfafea55274081983c868cf7156e604cb81490f092ea06&token=790768732&lang=zh_CN#rd),[代码](https://github.com/1
