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Article(6)
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Journal of Multivariate Analysis(2)
Advances in Data Analysis and Classification(1)
Journal of Computational and Graphical Statistics(1)
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Statistics and Computing(1)
An 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: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:googlescopusMoments and random number generation for the truncated elliptical family of distributions
ArticleAbstract: This paper proposes an algorithm to generate random numbers from any member of the truncated multivaPalabras claves:Elliptical distributions, Slice sampling algorithm, Truncated distributions, Truncated momentsAutores:Christian Galarza Morales, Katherine AL Valeriano, Matos L.A., Valeriano K.A.L.Fuentes:googlescopusMoments of the doubly truncated selection elliptical distributions with emphasis on the unified multivariate skew-t distribution
ArticleAbstract: In this paper, we compute doubly truncated moments for the selection elliptical class of distributioPalabras claves:Elliptical distributions, Selection distributions, Truncated distributions, Truncated momentsAutores:Castro L.M., Christian Galarza Morales, Lachos V.H., Matos L.A.Fuentes:googlescopusOn Moments of Folded and Doubly Truncated Multivariate Extended Skew-Normal Distributions
ArticleAbstract: This article develops recurrence relations for integrals that relate the density of multivariate extPalabras claves:Extended skew-normal distribution, Folded normal distribution, Product moments, Truncated distributionsAutores:Christian Galarza Morales, Dey D.K., Lachos V.H., Matos L.A.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