https://blog.youkuaiyun.com/penghui_tanzh-cnhttps://blog.youkuaiyun.com/https://blog.youkuaiyun.com/penghui_tan/article/details/78946929https://blog.youkuaiyun.com/penghui_tan/article/details/78946929penghui_tanMon, 01 Jan 2018 19:49:48 +0800https://blog.youkuaiyun.com/penghui_tan/article/details/78945089https://blog.youkuaiyun.com/penghui_tan/article/details/78945089penghui_tanMon, 01 Jan 2018 12:16:14 +08000,上式称为LASSO（Least Absolute Shrinkage and Selection Operator）引入L2正则化，则有： 正则化参数λ\lambda >0,上式称为“岭回归”(]]>https://blog.youkuaiyun.com/penghui_tan/article/details/78923668https://blog.youkuaiyun.com/penghui_tan/article/details/78923668penghui_tanThu, 28 Dec 2017 16:30:31 +0800https://blog.youkuaiyun.com/penghui_tan/article/details/78781373https://blog.youkuaiyun.com/penghui_tan/article/details/78781373penghui_tanTue, 12 Dec 2017 14:06:45 +0800