Indirect multivariate response linear regression

AJ Molstad, AJ Rothman - Biometrika, 2016 - academic.oup.com
AJ Molstad, AJ Rothman
Biometrika, 2016academic.oup.com
We propose a class of estimators of the multivariate response linear regression coefficient
matrix that exploits the assumption that the response and predictors have a joint multivariate
normal distribution. This allows us to indirectly estimate the regression coefficient matrix
through shrinkage estimation of the parameters of the inverse regression, or the conditional
distribution of the predictors given the responses. We establish a convergence rate bound
for estimators in our class and we study two examples, which respectively assume that the …
Abstract
We propose a class of estimators of the multivariate response linear regression coefficient matrix that exploits the assumption that the response and predictors have a joint multivariate normal distribution. This allows us to indirectly estimate the regression coefficient matrix through shrinkage estimation of the parameters of the inverse regression, or the conditional distribution of the predictors given the responses. We establish a convergence rate bound for estimators in our class and we study two examples, which respectively assume that the inverse regression's coefficient matrix is sparse and rank deficient. These estimators do not require that the forward regression coefficient matrix is sparse or has small Frobenius norm. Using simulation studies, we show that our estimators outperform competitors.
Oxford University Press
以上显示的是最相近的搜索结果。 查看全部搜索结果