PRINCIPLE: The UVE algorithm detects and eliminates from a pls model (including from 1 to A components) those variables that do not carry any relevant information to model Y. The criterion used to trace the un-informative variables is the reliability of the regression coefficients: c_j=mean(b_j)/std(b_j), obtained by jackknifing. The cutoff level, below which c_j is considered to be too small, indicating that the variable j should be removed, is estimated using a matrix of random variables.The predictive power of pls models built on the retained variables only is evaluated over all 1-a dimensions =(yielding RMSECVnew).
標(biāo)簽：
from
eliminates
PRINCIPLE
algorithm
上傳時間：
2016-11-27
上傳用戶：凌云御清風(fēng)
