Estimation of generalized linear latent variable models via fully exponential Laplace approximation

Silvia Bianconcini () and Silvia Cagnone

Journal of Multivariate Analysis, 2012, vol. 112, issue C, 183-193

Abstract: Latent variable models represent a useful tool in different fields of research in which the constructs of interest are not directly observable. In such models, problems related to the integration of the likelihood function can arise since analytical solutions do not exist. Numerical approximations, like the widely used Gauss–Hermite (GH) quadrature, are generally applied to solve these problems. However, GH becomes unfeasible as the number of latent variables increases. Thus, alternative solutions have to be found. In this paper, we propose an extended version of the Laplace method for approximating the integrals, known as fully exponential Laplace approximation. It is computational feasible also in presence of many latent variables, and it is more accurate than the classical Laplace approximation. The method is developed within the Generalized Linear Latent Variable Models (GLLVM) framework.

Keywords: Laplace approximation; Adaptive Gauss–Hermite; EM algorithm; Ordinal data (search for similar items in EconPapers)
Date: 2012
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Citations: View citations in EconPapers (5)

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DOI: 10.1016/j.jmva.2012.06.005

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