Hierarchical likelihood methods for nonlinear and generalized linear mixed models with missing data and measurement errors in covariates

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Hierarchical likelihood methods for nonlinear and generalized linear mixed models with missing data and measurement errors in covariates

TitleHierarchical likelihood methods for nonlinear and generalized linear mixed models with missing data and measurement errors in covariates
Publication TypeJournal Article
Year of Publication2012
AuthorsNoh, M, WU, LANG, Lee, Y
JournalJournal of Multivariate Analysis
Volume109
Pagination42–51
Date Publishedaug
ISSN0047-259X
KeywordsGeneralized linear mixed models, Hierarchical likelihood, Measurement errors, Missing covariates, Nonlinear mixed effects models
AbstractNonlinear mixed-effects (NLME) models and generalized linear mixed models (GLMM) are popular in the analyses of longitudinal data and clustered data. Covariates are often introduced to partially explain the large between individual (cluster) variation. Many of these covariates, however, contain missing data and/or are measured with errors. In these cases, likelihood inference can be computationally very challenging since the observed data likelihood involves a high-dimensional and intractable integral. Computationally intensive methods such as Monte-Carlo EM algorithms may offer computational difficulties such as very slow convergence or even non-convergence. In this article, we consider hierarchical likelihood methods which approximate the observed-data likelihood using Laplace approximation so completely avoid the intractable integral. We evaluate the methods via simulation and illustrate the methods by two examples.
URLhttp://www.sciencedirect.com/science/article/pii/S0047259X12000528
DOI10.1016/j.jmva.2012.02.011