Journal ArticleBehavior research methods · December 2021
Linear regression analyses commonly involve two consecutive stages of statistical inquiry. In the first stage, a single 'best' model is defined by a specific selection of relevant predictors; in the second stage, the regression coefficients of the winning ...
Full textOpen AccessCite
Journal ArticleJournal of the American Statistical Association · December 1, 2018
Featured Publication
Mixtures of Zellner's g-priors have been studied extensively in linear models and have been shown to have numerous desirable properties for Bayesian variable selection and model averaging. Several extensions of g-priors to Generalized Linear Models (GLMs) ...
Full textOpen AccessLink to itemCite
Journal ArticleJournal of thoracic disease · July 2018
BackgroundStudies have suggested that age increases susceptibility to ozone-associated mortality, but the underlying mechanisms are unclear. In a previous study, personal exposure to ozone was significantly associated with a platelet activation bi ...
Full textCite
Journal ArticleIndoor air · May 2018
High-efficiency particulate air (HEPA) filtration in combination with an electrostatic precipitator (ESP) can be a cost-effective approach to reducing indoor particulate exposure, but ESPs produce ozone. The health effect of combined ESP-HEPA filtration ha ...
Full textCite
Journal ArticleAm J Epidemiol · October 15, 2016
Previously developed models for predicting absolute risk of invasive epithelial ovarian cancer have included a limited number of risk factors and have had low discriminatory power (area under the receiver operating characteristic curve (AUC) < 0.60). Becau ...
Full textOpen AccessLink to itemCite
Journal ArticleNeurosurgery · August 2016
INTRODUCTION: Recently, auditory naming has become a part of cortical stimulation mapping (CSM) to provide a comprehensive language map prior to resection in epilepsy patients. Modality-specific language sites have been found using CSM in adult epilepsy pa ...
Full textLink to itemCite
Software · 2016
Package for Bayesian Model Averaging in linear models using stochastic or deterministic sampling without replacement from posterior distributions. Prior distributions on coefficients are from Zellner's g-prior or mixtures of g-priors corresponding to the Z ...
Full textLink to itemCite
Chapter · 2015
This article provides an overview of experimental design using a Bayesian decision-theoretic framework. Scientific experimentation requires decisions about how an experiment will be conducted and analyzed. Such decisions depend on the goals and purpose of ...
Full textLink to itemCite
Chapter · 2015
This article provides an overview of experimental design using a Bayesian decision-theoretic framework. Scientific experimentation requires decisions about how an experiment will be conducted and analyzed. Such decisions depend on the goals and purpose of ...
Full textLink to itemCite
Journal ArticleBMC Genomics · 2014
Background
Genetic association studies are conducted to discover genetic loci that contribute to an inherited trait, identify the variants behind these associations and ascertain their functional role in determining the phenotype. To date, functional anno ...
Full textOpen AccessCite
Journal ArticleBiometrika · December 1, 2012
Monte Carlo algorithms are commonly used to identify a set of models for Bayesian model selection or model averaging. Because empirical frequencies of models are often zero or one in high-dimensional problems, posterior probabilities calculated from the ob ...
Full textOpen AccessCite
Journal ArticleStatistical Methodology · January 1, 2012
We describe work in progress by a collaboration of astronomers and statisticians developing a suite of Bayesian data analysis tools for extrasolar planet (exoplanet) detection, planetary orbit estimation, and adaptive scheduling of observations. Our work a ...
Full textCite
Journal ArticleJournal of the American Statistical Association · October 21, 2011
Featured Publication
Choosing the subset of covariates to use in regression or generalized linear models is a ubiquitous problem. The Bayesian paradigm addresses the problem of model uncertainty by considering models corresponding to all possible subsets of the covariates, whe ...
Full textCite
Journal ArticleJournal of Computational and Graphical Statistics · March 1, 2011
For the problem of model choice in linear regression, we introduce a Bayesian adaptive sampling algorithm (BAS), that samples models without replacement from the space of models. For problems that permit enumeration of all models, BAS is guaranteed to enum ...
Full textCite
ConferenceAdvances in Neural Information Processing Systems 24: 25th Annual Conference on Neural Information Processing Systems 2011, NIPS 2011 · January 1, 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 pro ...
Cite
Journal ArticleAnnals of Statistics · 2011
Featured Publication
This article describes a new class of prior distributions for nonparametric function estimation. The unknown function is modeled as a limit of weighted sums of kernels or generator functions indexed by continuous parameters that control local and global fe ...
Full textOpen AccessCite
Journal ArticleAdvances in Neural Information Processing Systems · 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 pro ...
Cite
Journal ArticleThe Annals of Applied Statistics · 2011
We present a novel nonparametric Bayesian approach based on Lévy Adaptive Regression Kernels (LARK) to model spectral data arising from MALDI-TOF (Matrix Assisted Laser Desorption Ionization Time-of-Flight) mass spectrometry. This model-based approach prov ...
Full textOpen AccessLink to itemCite
Journal ArticleAnn Appl Stat · September 1, 2010
Technological advances in genotyping have given rise to hypothesis-based association studies of increasing scope. As a result, the scientific hypotheses addressed by these studies have become more complex and more difficult to address using existing analyt ...
Full textOpen AccessLink to itemCite
Journal ArticlePLoS One · April 8, 2010
BACKGROUND: We analyzed the association between 53 genes related to DNA repair and p53-mediated damage response and serous ovarian cancer risk using case-control data from the North Carolina Ovarian Cancer Study (NCOCS), a population-based, case-control st ...
Full textOpen AccessLink to itemCite
Journal ArticleBMC Cancer · May 28, 2009
BACKGROUND: Because screening mammography for breast cancer is less effective for premenopausal women, we investigated the feasibility of a diagnostic blood test using serum proteins. METHODS: This study used a set of 98 serum proteins and chose diagnostic ...
Full textLink to itemCite
Journal ArticleCancer Res · March 15, 2009
The p53 protein is critical for multiple cellular functions including cell growth and DNA repair. We assessed whether polymorphisms in the region encoding TP53 were associated with risk of invasive ovarian cancer. The study population includes a total of 5 ...
Full textLink to itemCite
Journal ArticleAnnals of Applied Statistics · March 1, 2009
Determination of the minimum inhibitory concentration (MIC) of a drug that prevents microbial growth is an important step for managing patients with infections. In this paper we present a novel probabilistic approach that accurately estimates MICs based on ...
Full textCite
Journal ArticleStatistica Sinica · 2009
We present a Bayesian approach for nonparametric function estimation based on a continuous wavelet dictionary, where the unknown function is modeled by a random sum of wavelet functions at arbitrary locations and scales. By avoiding the dyadic constraints ...
Link to itemCite
Journal ArticleCancer Epidemiol Biomarkers Prev · December 2008
Over 22,000 cases of ovarian cancer were diagnosed in 2007 in the United States, but only a fraction of them can be attributed to mutations in highly penetrant genes such as BRCA1. To determine whether low-penetrance genetic variants contribute to ovarian ...
Full textLink to itemCite
Journal ArticleJournal of the American Statistical Association · 2008
Featured Publication
Zellner's g prior remains a popular conventional prior for use in Bayesian variable selection, despite several undesirable consistency issues. In this article we study mixtures of g priors as an alternative to default g priors that resolve many of the prob ...
Full textLink to itemCite
Chapter · 2007
We consider the nonparametric regression problem of estimating an unknown function based on noisy data. One approach to this estimation problem is to represent the function in a series expansion using a linear combination of basis functions. Overcomplete d ...
Cite
Chapter · 2007
We consider the nonparametric regression problem of estimating an unknown function based on noisy data. One approach to this estimation problem is to represent the function in a series expansion using a linear combination of basis functions. Overcomplete d ...
Cite
Journal ArticleMovement disorders : official journal of the Movement Disorder Society · November 2006
Deep brain stimulation (DBS) of the ventral intermediate nucleus of the thalamus for essential tremor is sometimes limited by side effects. The mechanisms by which DBS alleviates tremor or causes side effects are unclear; thus, it is difficult to select st ...
Full textCite
Chapter · 2006
We present model-based inference for proteomic peak identification and quantification from mass spectroscopy data, focusing on nonparametric Bayesian models. Using experimental data generated from MALDI-TOF mass spectroscopy (matrix-assisted laser desorpti ...
Full textCite
Journal ArticleBayesisan Analysis · 2005
The study of genetics continues to advance dramatically with the development of microarray technology. In light of the advancements, interesting statistical challenges have arisen. Given that only one observation can be made from each gene on a single arra ...
Full textCite
Journal ArticleJ Interv Card Electrophysiol · April 2004
Well-tolerated internal atrial defibrillation shocks must be below the pain threshold, which has been estimated to be less than 1 Joule. Defibrillation of the atria with low energy is made possible by delivering shocks at the low end of the defibrillation ...
Full textLink to itemCite
Journal ArticleStatistical Science · February 1, 2004
The evolution of Bayesian approaches for model uncertainty over the past decade has been remarkable. Catalyzed by advances in methods and technology for posterior computation, the scope of these methods has widened substantially. Major thrusts of these dev ...
Full textCite
Journal ArticleInternational Statistical Review · January 1, 2003
We critically review and compare epidemiological designs and statistical approaches to estimate associations between air pollution and health. More specifically, we aim to address the following questions: 1. Which epidemiological designs and statistical me ...
Full textCite
Journal ArticleJournal of Statistical Planning and Inference · May 1, 2002
In nonlinear regression problems, the assumption is usually made that parameter estimates will be approximately normally distributed. The accuracy of the approximation depends on the sample size and also on the intrinsic and parameter-effects curvatures. B ...
Full textCite
Chapter · 2001
This article provides an overview of experimental design using a Bayesian decision-theoretic framework. Scientific experimentation requires decisions about how an experiment will be conducted and analyzed. Such decisions depend on the goals and purpose of ...
Full textLink to itemCite
Journal ArticleArtificial Intelligence and Statistics · 2001
Bagging is a method of obtaining more ro- bust predictions when the model class under consideration is unstable with respect to the data, i.e., small changes in the data can cause the predicted values to change significantly. In this paper, we introduce a ...
Open AccessLink to itemCite
Journal ArticleEnvironmetrics · December 1, 2000
There are many aspects of model choice that are involved in health effect studies of particulate matter and other pollutants. Some of these choices concern which pollutants and confounding variables should be included in the model, what type of lag structu ...
Full textCite
Journal ArticleJournal of the Royal Statistical Society. Series B: Statistical Methodology · January 1, 2000
Wavelet shrinkage estimation is an increasingly popular method for signal denoising and compression. Although Bayes estimators can provide excellent mean-squared error (MSE) properties, the selection of an effective prior is a difficult task. To address th ...
Full textCite
Journal ArticleCanadian Journal of Statistics · January 1, 2000
The authors discuss prior distributions that are conjugate to the multivariate normal likelihood when some of the observations are incomplete. They present a general class of priors for incorporating information about unidentified parameters in the covaria ...
Full textCite
Journal ArticleJournal of Agricultural, Biological, and Environmental Statistics · January 1, 2000
Long-term eutrophication data along with water quality measurements (total phosphorous and total nitrogen) and other physical environmental factors such as lake level (stage), water temperature, wind speed, and direction were used to develop a model to pre ...
Full textCite
Chapter · 1999
Bayesian methods based on hierarchical mixture models have demonstrated excellent mean squared error properties in constructing data dependent shrinkage estimators in wavelets, however, subjective elicitation of the hyperparameters is challenging. In this ...
Full textLink to itemCite
Journal ArticleJournal of biopharmaceutical statistics · July 1998
Determining optimal conditions for protein storage while maintaining a high level of protein activity is an important question in pharmaceutical research. A designed experiment based on a space-filling design was conducted to understand the effects of fact ...
Full textCite
Chapter · 1998
We report on a study of mixture modeling problems arising in the assessment of chemical structure-activity relationships in drug design and discovery. Pharmaceutical research laboratories developing test compounds for screening synthesize many related cand ...
Full textCite
Journal ArticleBiometrika · January 1, 1998
This paper discusses Bayesian methods for multiple shrinkage estimation in wavelets. Wavelets are used in applications for data denoising, via shrinkage of the coefficients towards zero, and for data compression, by shrinkage and setting small coefficients ...
Full textCite
Journal ArticleJournal of the American Statistical Association · September 1, 1996
Several competing objectives may be relevant in the design of an experiment. The competing objectives may not be easy to characterize in a single optimality criterion. One approach to these design problems has been to weight each criterion and find the des ...
Full textCite
Chapter · 1996
This chapter focuses on Bayesian inference and design in binary regression experiments . As a case
study we consider heart de brillator experiments in which the number of observations that can be
taken is limited and it is important to incorporate all a ...
Link to itemCite
Chapter · 1996
This chapter focuses on Bayesian inference and design in binary regression experiments . As a case
study we consider heart de brillator experiments in which the number of observations that can be
taken is limited and it is important to incorporate all a ...
Link to itemCite
Chapter · 1996
Prediction methods based on mixing over a set of plausible models can help alleviate the sensitivity of inference and decisions to modeling assumptions. One important application area is prediction in linear models. Computing techniques for model mixing in ...
Full textCite
Journal ArticleJournal of the American Statistical Association · 1996
We introduce an approach and algorithms for model mixing in large prediction problems with correlated predictors. We focus on the choice of predictors in linear models, and mix over possible subsets of candidate predictors. Our approach is based on express ...
Full textCite
Chapter · 1995
In many experimental design problems, the primary interest is in estimating functions of the parameters and a design is selected according to some optimality criterion. The assumption that parameter estimates are approximately normally distributed is often ...
Full textLink to itemCite
Chapter · 1995
During heart defibrillator implantation, a physician fibrillates the patient’s heart several times at different test strengths to estimate the effective strength necessary for defibrillation. One strategy is to implant at the strength that de-fibrillates 9 ...
Full textLink to itemCite
Chapter · 1991
The spatial models considered in this paper are Gibbs processes with pairwise interaction potentials, which provide a rich framework for models where the likelihood of a particular configuration of points depends on attraction or repulsion between neighbor ...
Full textCite
Chapter · 1991
The spatial models considered in this paper are Gibbs processes with pairwise interaction potentials, which provide a rich framework for models where the likelihood of a particular configuration of points depends on attraction or repulsion between neighbor ...
Full textCite
Journal ArticleCanadian Journal of Forest Research · January 1, 1991
Variation in height at ages nine and 19 and at six polymorphic allozyme loci was examined for 22 seed sources in a range-wide Picea glauca provenance test. -from Authors ...
Full textCite
Journal ArticleEvolution; international journal of organic evolution · May 1987
We used allozyme analysis to examine family structure, the spatial patterning of related individuals, in two populations of whitebark pine (Pinus albicaulis), a subalpine conifer that commonly displays a multistem form. The individual stems within clumps a ...
Full textCite
Journal ArticleEvolution · January 1, 1987
Pinus albicaulis is a subalpine conifer that commonly displays a multistem form. The individual stems within clumps are genetically distinct individuals, having arisen from separate seeds. Individuals within a clump are genetically more similar than indivi ...
Full textCite