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- David M. Blei, Lawrence Carin, David B. Dunson
- IEEE Signal Processing Magazine
- 2010

Probabilistic topic modeling provides a suite of tools for the unsupervised analysis of large collections of documents. Topic modeling algorithms can uncover the underlying themes of a collection and decompose its documents according to those themes. This analysis can be used for corpus exploration, document search, and a variety of prediction problems.
In… (More)

- Shihao Ji, David B. Dunson, Lawrence Carin
- IEEE Transactions on Signal Processing
- 2009

Compressive sensing (CS) is a framework whereby one performs N nonadaptive measurements to constitute a vector v isin R<sup>N</sup> used to recover an approximation u isin R<sup>M</sup> desired signal u isin R<sup>M</sup> with N << M this is performed under the assumption that u is sparse in the basis represented by the matrix Psi R<sup>MtimesM</sup>.… (More)

- A Bhattacharya, D B Dunson
- Biometrika
- 2011

We focus on sparse modelling of high-dimensional covariance matrices using Bayesian latent factor models. We propose a multiplicative gamma process shrinkage prior on the factor loadings which allows introduction of infinitely many factors, with the loadings increasingly shrunk towards zero as the column index increases. We use our prior on a… (More)

- Mingyuan Zhou, Haojun Chen, +6 authors Lawrence Carin
- IEEE Transactions on Image Processing
- 2012

Nonparametric Bayesian methods are considered for recovery of imagery based upon compressive, incomplete, and/or noisy measurements. A truncated beta-Bernoulli process is employed to infer an appropriate dictionary for the data under test and also for image recovery. In the context of compressive sensing, significant improvements in image recovery are… (More)

- Donna Day Baird, David B Dunson, Michael C Hill, Deborah Cousins, Joel M Schectman
- American journal of obstetrics and gynecology
- 2003

OBJECTIVE
Uterine leiomyoma, or fibroid tumors, are the leading indication for hysterectomy in the United States, but the proportion of women in whom fibroid tumors develop is not known. This study screened for fibroid tumors, independently of clinical symptoms, to estimate the age-specific proportion of black and white women in whom fibroid tumors develop.… (More)

- Artin Armagan, David B Dunson, Jaeyong Lee
- Statistica Sinica
- 2013

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 distributions, forming a bridge between the Laplace and Normal-Jeffreys' priors. While it has a spike at zero like the Laplace density, it also has a Student's t-like tail… (More)

- A J Wilcox, D B Dunson, C R Weinberg, J Trussell, D D Baird
- Contraception
- 2001

Emergency post-coital contraceptives effectively reduce the risk of pregnancy, but their degree of efficacy remains uncertain. Measurement of efficacy depends on the pregnancy rate without treatment, which cannot be measured directly. We provide indirect estimates of such pregnancy rates, using data from a prospective study of 221 women who were attempting… (More)

- Artin Armagan, David B. Dunson, Merlise Clyde
- NIPS
- 2011

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 expressed as scale mixtures of normals, but have more complex forms and better properties than traditional Cauchy and double exponential priors. We first propose a new class of normal… (More)

- Zhen Chen, David B Dunson
- Biometrics
- 2003

We address the important practical problem of how to select the random effects component in a linear mixed model. A hierarchical Bayesian model is used to identify any random effect with zero variance. The proposed approach reparameterizes the mixed model so that functions of the covariance parameters of the random effects distribution are incorporated as… (More)

- David B Dunson, Brian Neelon
- Biometrics
- 2003

In biomedical studies, there is often interest in assessing the association between one or more ordered categorical predictors and an outcome variable, adjusting for covariates. For a k-level predictor, one typically uses either a k-1 degree of freedom (df) test or a single df trend test, which requires scores for the different levels of the predictor. In… (More)