Results 21 to 30 of about 10,357 (300)

Horseshoe prior Bayesian quantile regression

open access: yesJournal of the Royal Statistical Society Series C: Applied Statistics, 2023
Abstract This paper extends the horseshoe prior to Bayesian quantile regression and provides a fast sampling algorithm for computation in high dimensions. Compared to alternative shrinkage priors, our method yields better performance in coefficient bias and forecast error, especially in sparse designs and in estimating extreme quantiles.
Kohns, D, Szendrei, Tibor
openaire   +3 more sources

qgam: Bayesian Nonparametric Quantile Regression Modeling in R

open access: yesJournal of Statistical Software, 2021
Generalized additive models (GAMs) are flexible non-linear regression models, which can be fitted efficiently using the approximate Bayesian methods provided by the mgcv R package.
Matteo Fasiolo   +4 more
doaj   +1 more source

A Bayesian Approach to Envelope Quantile Regression

open access: yesStatistica Sinica, 2022
Summary: The enveloping approach employs sufficient dimension-reduction techniques to gain estimation efficiency, and has been used in several multivariate analysis contexts. However, its Bayesian development has been sparse, and the only Bayesian envelope construction is in the context of a linear regression.
Lee*, Minji   +2 more
openaire   +2 more sources

A Bayesian Variable Selection Method for Spatial Autoregressive Quantile Models

open access: yesMathematics, 2023
In this paper, a Bayesian variable selection method for spatial autoregressive (SAR) quantile models is proposed on the basis of spike and slab prior for regression parameters.
Yuanying Zhao, Dengke Xu
doaj   +1 more source

Bayesian quantile semiparametric mixed-effects double regression models

open access: yesStatistical Theory and Related Fields, 2021
Semiparametric mixed-effects double regression models have been used for analysis of longitudinal data in a variety of applications, as they allow researchers to jointly model the mean and variance of the mixed-effects as a function of predictors ...
Duo Zhang   +3 more
doaj   +1 more source

Quantity and Quality in Scientific Productivity: The Tilted Funnel Goes Bayesian

open access: yesJournal of Intelligence, 2022
The equal odds baseline model of creative scientific productivity proposes that the number of high-quality works depends linearly on the number of total works.
Boris Forthmann, Denis Dumas
doaj   +1 more source

Bayesian composite quantile regression for the single-index model.

open access: yesPLoS ONE, 2023
By using a Gaussian process prior and a location-scale mixture representation of the asymmetric Laplace distribution, we develop a Bayesian analysis for the composite quantile single-index regression model.
Xiaohui Yuan, Xuefei Xiang, Xinran Zhang
doaj   +1 more source

Bayesian semiparametric additive quantile regression [PDF]

open access: yesStatistical Modelling, 2013
Quantile regression provides a convenient framework for analyzing the impact of covariates on the complete conditional distribution of a response variable instead of only the mean. While frequentist treatments of quantile regression are typically completely nonparametric, a Bayesian formulation relies on assuming the asymmetric Laplace distribution as ...
Yue, Yu Ryan   +4 more
openaire   +3 more sources

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. The method extends the Bayesian Lasso quantile regression by allowing different penalization parameters for different regression coefficients.
R. ALHAMZAWI, K. YU, D. F. BENOIT
openaire   +4 more sources

Quantile Regression Neural Networks: A Bayesian Approach [PDF]

open access: yesJournal of Statistical Theory and Practice, 2021
This article introduces a Bayesian neural network estimation method for quantile regression assuming an asymmetric Laplace distribution (ALD) for the response variable. It is shown that the posterior distribution for feedforward neural network quantile regression is asymptotically consistent under a misspecified ALD model. This consistency proof embeds
S. R. Jantre, S. Bhattacharya, T. Maiti
openaire   +2 more sources

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