Results 191 to 200 of about 1,681,604 (218)

Bayesian Adaptive Lasso Quantile Regression [PDF]

open access: yesStatistical Modelling, 2012
Recently, variable selection by penalized likelihood has attracted much research interest. In this paper, we propose adaptive Lasso quantile regression (BALQR) from a Bayesian perspective.
Keming Yu, Rahim Alhamzawi
exaly   +7 more sources

Bayesian Doubly Adaptive Elastic-Net Lasso for VAR Shrinkage

open access: yesInternational Journal of Forecasting, 2014
We develop a novel Bayesian doubly adaptive elastic-net Lasso (DAELasso) approach for VAR shrinkage. DAELasso achieves variable selection and coefficient shrinkage in a data-based manner.
Gefang, Deborah
exaly   +7 more sources

The Bayesian Adaptive Lasso Regression

Mathematical Biosciences, 2018
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.
Haithem Taha Mohammad Ali   +1 more
exaly   +4 more sources

Bayesian Bootstrap Adaptive Lasso Estimators of Regression Models

Journal of Statistical Computation and Simulation, 2021
This paper proposes a modified adaptive lasso method by the Bayesian bootstrap (BBAL) and approximates the posterior distributions of parameters for a linear and a logistic regression model, respec...
Juan Wu
exaly   +2 more sources

Variational Inference on a Bayesian Adaptive Lasso Tobit Quantile Regression Model

open access: yesStat, 2023
The Tobit quantile regression model is a useful tool for quantifying the relationship between response variables with limited values and the explanatory variables. Under the Bayesian framework, the Tobit quantile regression model is often simulated by an asymmetric Laplacian distribution (ALD), which can be reformulated as a hierarchical structure ...
Ying Wu, Weili Cheng
exaly   +3 more sources

New Scale Mixture for Bayesian Adaptive Lasso Tobit Regression

Journal of Al-Rafidain University College For Sciences ( Print ISSN: 1681-6870 ,Online ISSN: 2790-2293 ), 2021
Abbas [1] proposed new hierarchical representation of the adaptive Bayesian lasso model as uniform density , mixing with standard exponential distribution based on a transformation of the mixture of uniform density and a particular gamma distribution formulation provided by Mallick & Yi [2] They consider the new proposed hierarchical formulation ...
Ahmad Flaih   +2 more
openaire   +1 more source

Bayesian Adaptive Lasso for Quantile Regression Models With Nonignorably Missing Response Data

Communications in Statistics Part B: Simulation and Computation, 2019
Handling data with the nonignorably missing mechanism is still a challenging problem in statistics.
Niansheng Tang
exaly   +3 more sources

Bayesian adaptive Lasso estimation of large graphical model based on modified Cholesky decomposition

Statistics & Probability Letters, 2023
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Fanqun Li, Mingtao Zhao, Kongsheng Zhang
openaire   +2 more sources

Structure Detection of Semiparametric Structural Equation Models With Bayesian Adaptive Group Lasso

Statistics in Medicine, 2015
Structural equation models (SEMs) are widely recognized as the most important statistical tool for assessing the interrelationships among latent variables. This study develops a Bayesian adaptive group least absolute shrinkage and selection operator procedure to perform simultaneous model selection and estimation for semiparametric SEMs, wherein the ...
Xiangnan Feng, Xinyuan Song
exaly   +3 more sources

Bayesian adaptive lasso for additive hazard regression with current status data

Statistics in Medicine, 2019
Variable selection is a crucial issue in model building and it has received considerable attention in the literature of survival analysis. However, available approaches in this direction have mainly focused on time‐to‐event data with right censoring. Moreover, a majority of existing variable selection procedures for survival models are developed in a ...
Chunjie Wang   +3 more
openaire   +3 more sources

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