elastic net regularization

elastic net regularization

本组的镇组神器啊，老板在nature上成功使用，之前一直感觉很神秘，现在大概搞懂了~~

居然python早就出了函数，完全可以用python算

https://stats.stackexchange.com/questions/184029/what-is-elastic-net-regularization-and-how-does-it-solve-the-drawbacks-of-ridge