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The parametric and additive partial linear regressions based on the generalized odd log-logistic log-normal distribution
(Taylor & Francis Inc, 2020-07-19)
We propose two new regressions based on the generalized odd log-logistic log-normal distribution allowing for positive and negative skewness to model bimodal data. The first one is the parametric regression and the second ...
On the existence of the weighted bridge penalized Gaussian likelihood precision matrix estimator
(The Institute of Mathematical Statistics and the Bernoulli Society, 2014-12)
We establish a necessary and sufficient condition for the existence of the precision matrix estimator obtained by minimizing the negative Gaussian log-likelihood plus a weighted bridge penalty. This condition enables us ...
PET Reconstruction With Non-Negativity Constraint in Projection Space: Optimization Through Hypo-Convergence
(IEEE, 2020)
Standard positron emission tomography (PET) reconstruction techniques are based on maximum-likelihood (ML) optimization methods, such as the maximum-likelihood expectation-maximization (MLEM) algorithm and its variations. ...
Bimodal Birnbaum-Saunders statistical modeling
(Universidade Federal de PernambucoUFPEBrasilPrograma de Pos Graduacao em Estatistica, 2018)
Modelos de espaço de estados não Gaussianos: distribuições de caudas pesadas
(Universidade Federal de Minas GeraisUFMG, 2012-12-20)
This thesis contains three papers that expand the knowledge about a new family of state space model proposed by Santos et al. (2010) called non-Gaussian state space model (NGSSM). This family of models is very interesting ...
On the parameter estimation problem of the q-Exponential distribution for reliability applications
(Universidade Federal de PernambucoUFPEBrasilPrograma de Pos Graduacao em Engenharia de Producao, 2019)
Flexible scan statistic test to detect disease clusters in hierarchical trees
(Springer HeidelbergHeidelbergAlemanha, 2012)
Farmacocinética poblacional en el manejo empírico de infecciones en pacientes con neoplasias hematológicas y neutropenia febril pos-quimioterapia
(Universidad Nacional de ColombiaBogotá - Ciencias - Maestría en Ciencias - FarmacologíaDepartamento de FarmaciaFacultad de CienciasBogotá, ColombiaUniversidad Nacional de Colombia - Sede Bogotá, 2021)
Los pacientes con neoplasias hematológicas y neutropenia febril postquimioterapia podrían presentar alteraciones fisiológicas que lleven a cambios en la farmacocinética (PK) de los fármacos comparado a individuos sin cáncer ...
Un modelo de interacción espacial para el flujo de pasajeros -entre terminales aéreas de Colombia en los años 2004 a 2015.
(Departamento de EstadísticaUniversidad Nacional de Colombia - Sede Bogotá, 2020-02-25)
Se hace un análisis de información acerca del flujo de pasajeros en Colombia para los años 2004 a 2015 con diferentes variantes del modelo de gravedad. También es usada para evaluar la bondad de ajuste de otras estrategias ...