activity
20072012
most citedGeneralized Beta Mixtures of Gaussians

91 citations · 170 across the 7 of their papers we have counts for

collaborators

8 papers

math.ST2012

Finite sample posterior concentration in high-dimensional regression

Nate Strawn, Artin Armagan, Rayan Saab +2

We study the behavior of the posterior distribution in high-dimensional Bayesian Gaussian linear regression models having , with the number of predictors and the sa…

stat.CO2012★ 12 cited

Path Following and Empirical Bayes Model Selection for Sparse Regression

Hua Zhou, Artin Armagan, David B. Dunson

In recent years, a rich variety of regularization procedures have been proposed for high dimensional regression problems. However, tuning parameter choice and computational efficie…

stat.ME2011★ 91 cited

Generalized Beta Mixtures of Gaussians

Artin Armagan, David B. Dunson, Merlise Clyde

In recent years, a rich variety of shrinkage priors have been proposed that have great promise in addressing massive regression problems. In general, these new priors can be expres…

stat.ME2011★ 62 cited

Posterior consistency in linear models under shrinkage priors

Artin Armagan, David B. Dunson, Jaeyong Lee +2

We investigate the asymptotic behavior of posterior distributions of regression coefficients in high-dimensional linear models as the number of dimensions grows with the number of…

stat.ME2011★ 5 cited

Generalized double Pareto shrinkage

Artin Armagan, David Dunson, Jaeyong Lee

We propose a generalized double Pareto prior for Bayesian shrinkage estimation and inferences in linear models. The prior can be obtained via a scale mixture of Laplace or normal d…

stat.ME2008

Adaptive Ridge Selector (ARiS)

Artin Armagan, Russell Zaretzki

We introduce a new shrinkage variable selection operator for linear models which we term the \emph{adaptive ridge selector} (ARiS). This approach is inspired by the \emph{relevance…