一些建模中的问题

标签：normal   als   降维   res   format   orm   dimen   hid   actual   

1.是否需要降维？

Dimensionality reduction we normally use it to visualize our data and to find hidden information

we don‘t normally see. Also, it is use for optimizing of course this is under the assumption that

when implementing dimensionality reduction to your dataset it is representative of the actual

dataset. You can find this out through the explained variance.

引自

一些建模中的问题

标签：normal   als   降维   res   format   orm   dimen   hid   actual   

原文地址：https://www.cnblogs.com/ironan-liu/p/14218080.html