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A skew-t quantile regression for censored and missing data
ArticleAbstract: Quantile regression has emerged as an important analytical alternative to the classical mean regressPalabras claves:Autores:Bourguignon M., Christian Galarza Morales, Lachos V.H.Fuentes:googlescopusAn EM algorithm for estimating the parameters of the multivariate skew-normal distribution with censored responses
ArticleAbstract: Limited or censored data are collected in many studies. This occurs for many reasons in several pracPalabras claves:Censored dataa, EM algorithm, Extended skew-normal distribution, Truncated distributionsAutores:Christian Galarza Morales, Lachos V.H., Matos L.A.Fuentes:googlescopusEstimation and diagnostics for partially linear censored regression models based on heavy-tailed distributions
ArticleAbstract: In many studies, limited or censored data are collected. This occurs, in several practical situationPalabras claves:Censored regression model, EMtype algorithm, Local influence, Partially linear models, scale mixtures of normal distributionsAutores:Christian Galarza Morales, Lachos V.H., Lemus M.N., Matos L.A.Fuentes:googlescopusFinite mixture modeling of censored and missing data using the multivariate skew-normal distribution
ArticleAbstract: Finite mixture models have been widely used to model and analyze data from a heterogeneous populatioPalabras claves:Censored data, Detection limit, EM-type algorithms, finite mixture models, Multivariate skew-normal distribution, Truncated distributionsAutores:Christian Galarza Morales, de Alencar F.H.C., Lachos V.H., Matos L.A.Fuentes:googlescopusQuantile regression for nonlinear mixed effects models: a likelihood based perspective
ArticleAbstract: Longitudinal data are frequently analyzed using normal mixed effects models. Moreover, the traditionPalabras claves:Asymmetric Laplace distribution, Nonlinear mixed effects models, Quantile regression, SAEM algorithmAutores:Castro L.M., Christian Galarza Morales, Lachos V.H., Louzada F.Fuentes:googlescopusQuantile regression in linear mixed models: A stochastic approximation EM approach
ArticleAbstract: This paper develops a likelihood-based approach to analyze quantile regression (QR) models for contiPalabras claves:Asymmetric Laplace distribution, Linear mixed-effects models, Quantile regression, SAEM algorithmAutores:Bandyopadhyay D., Christian Galarza Morales, Lachos V.H.Fuentes:googlescopusLikelihood-based inference for the multivariate skew-t regression with censored or missing responses
ArticleAbstract: Skew-t regression models have been widely used to model and analyze asymmetric heavy-tailed data. MoPalabras claves:Censored data, EM algorithm, Extended skew-t distribution, Missing observations, Truncated distributionsAutores:Christian Galarza Morales, Katherine AL Valeriano, Lachos V.H., Matos L.A., Valeriano K.A.L.Fuentes:googlescopus