机器学习(十一):CS229ML课程笔记(7)——模型选择,特征选择
总结:
1. 模型选择:——交叉验证(Model selection)
① 保留交叉验证(Hold-out cross validation)
② k重交叉验证(k-fold cross validation)
③ 留一验证法(Leave-one-out cross validation)
2. 特征选择(Feature selection)
① 正向搜索/反向搜索(forward/backwardsearch)
② 过滤特征选择(filter feature selection)
③ 贝叶斯正则化
贝叶斯正则化:
参考链接:
① :https://blog.****.net/sinat_37965706/article/details/70991288
②:https://blog.****.net/linkin1005/article/details/42869331