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Estimation for High-Dimensional Linear Mixed-Effects Models Using ℓ1-Penalization

Published 1 January 2010
Jürg Schelldorfer
Citations148

Abstract

We propose an $\ell_1$-penalized estimation procedure for high-dimensional linear mixed-effects models. The models are useful whenever there is a grouping structure among high-dimensional observations, i.e. for clustered data. We prove a consistency and an oracle optimality result and we develop an algorithm with provable numerical convergence. Furthermore, we demonstrate the performance of the method on simulated and a real high-dimensional data set.

Keywords

Mathematics