The Bayesian adaptive lasso regression.
Math Biosci
; 303: 75-82, 2018 09.
Article
em En
| MEDLINE
| ID: mdl-29920251
ABSTRACT
Classical adaptive lasso regression is known to possess the oracle properties; namely, it performs as well as if the correct submodel were known in advance. However, it requires consistent initial estimates of the regression coefficients, which are generally not available in high dimensional settings. In addition, none of the algorithms used to obtain the adaptive lasso estimators provide a valid measure of standard error. To overcome these drawbacks, some Bayesian approaches have been proposed to obtain the adaptive lasso and related estimators. In this paper, we consider a fully Bayesian treatment for the adaptive lasso that leads to a new Gibbs sampler with tractable full conditional posteriors. Through simulations and real data analyses, we compare the performance of the new Gibbs sampler with some of the existing Bayesian and non-Bayesian methods. Results show that the new approach performs well in comparison to the existing Bayesian and non-Bayesian approaches.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Modelos Lineares
/
Teorema de Bayes
Tipo de estudo:
Health_economic_evaluation
/
Prognostic_studies
Limite:
Humans
/
Male
Idioma:
En
Revista:
Math Biosci
Ano de publicação:
2018
Tipo de documento:
Article