Sparsistent and constansistent estimation of the varying-coefficient model with a diverging number of predictors

Kaifeng Zhao and Heng Lian

Communications in Statistics - Theory and Methods, 2016, vol. 45, issue 21, 6385-6399

Abstract: The varying-coefficient model is a flexible class of approaches that extends simple linear relationships between covariates and responses. Two related problems concerning these models are selecting relevant variables and determining non-varying coefficients among those relevant ones. In this paper we study the sparsistency and constansistency of the regularized estimation approach when the number of predictors diverges with the sample size. Here, constansistency refers to the desired property that the non-zero, non-varying coefficients are identified with probability tending to one.

Date: 2016
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DOI: 10.1080/03610926.2014.890224

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