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Empirical Bayes Variable Selection via ICM/M Algorithm
Empirical Bayes variable selection via ICM/M algorithm for normal, binary logistic, and Cox's regression. The basic problem is to fit high-dimensional regression which sparse coefficients. This package allows incorporating the Ising prior to capture structure of predictors in the modeling process. More information can be found in the papers listed in the URL below.
Sample Size and Power Calculation for Bayesian Testing with Bayes Factor
The goal of 'BayesPower' is to provide tools for Bayesian sample size determination and power analysis across a range of common hypothesis testing scenarios using Bayes factors. The main function, BayesPower_BayesFactor(), launches an interactive 'shiny' application for performing these analyses. The application also provides command-line code for reproducibility. Details of the methods are described in the tutorial by Wong, Pawel, and Tendeiro (2025)
Derive Polygenic Risk Score Based on Emprical Bayes Theory
EB-PRS is a novel method that leverages information for effect sizes across all the markers to improve the prediction accuracy. No parameter tuning is needed in the method, and no external information is needed. This R-package provides the calculation of polygenic risk scores from the given training summary statistics and testing data. We can use EB-PRS to extract main information, estimate Empirical Bayes parameters, derive polygenic risk scores for each individual in testing data, and evaluate the PRS according to AUC and predictive r2. See Song et al. (2020)
Fitting Shared Atoms Nested Models via Variational Bayes
An efficient tool for fitting the nested common and shared atoms models using variational Bayes approximate inference for fast computation. Specifically, the package implements the common atoms model (Denti et al., 2023), its finite version (D'Angelo et al., 2023), and a hybrid finite-infinite model.
All models use Gaussian mixtures with a normal-inverse-gamma prior distribution on the parameters. Additional functions are provided to help analyze the results of the fitting procedure.
References:
Denti, Camerlenghi, Guindani, Mira (2023)
An Empirical Bayes Approach for Replicability Analysis Across Two Studies
A robust and powerful empirical Bayesian approach is developed for replicability analysis of two large-scale experimental studies. The method controls the false discovery rate by using the joint local false discovery rate based on the replicability null as the test statistic. An EM algorithm combined with a shape constraint nonparametric method is used to estimate unknown parameters and functions. [Li, Y. et al., (2024),
Hierarchical Bayes Small Area Estimation Model using 'Stan'
Implementing Hierarchical Bayesian Small Area Estimation
models using the 'brms' package as the computational backend. The
modeling framework follows the methodological foundations described in area-level
models. This package is designed to facilitate a principled Bayesian workflow,
enabling users to conduct prior predictive checks, model fitting, posterior
predictive checks, model comparison, and sensitivity analysis in a coherent and
reproducible manner. It supports flexible model specifications via 'brms' and
promotes transparency in model development, aligned with the recommendations of
modern Bayesian data analysis practices, implementing methods described in
Rao and Molina (2015)
R Interface for the 'H2O' Scalable Machine Learning Platform
R interface for 'H2O', the scalable open source machine learning platform that offers parallelized implementations of many supervised and unsupervised machine learning algorithms such as Generalized Linear Models (GLM), Gradient Boosting Machines (including XGBoost), Random Forests, Deep Neural Networks (Deep Learning), Stacked Ensembles, Naive Bayes, Generalized Additive Models (GAM), ANOVA GLM, Cox Proportional Hazards, K-Means, PCA, ModelSelection, Word2Vec, as well as a fully automatic machine learning algorithm (H2O AutoML).
Estimating Local False Discovery Rates Using Empirical Bayes Methods
New empirical Bayes methods aiming at analyzing the association of single nucleotide polymorphisms (SNPs) to some particular disease are implemented in this package. The package uses local false discovery rate (LFDR) estimates of SNPs within a sample population defined as a "reference class" and discovers if SNPs are associated with the corresponding disease. Although SNPs are used throughout this document, other biological data such as protein data and other gene data can be used. Karimnezhad, Ali and Bickel, D. R. (2016) < http://hdl.handle.net/10393/34889>.
Small Area Estimation using Empirical Bayes without Auxiliary Variable
Estimates the parameter of small area in binary data without
auxiliary variable using Empirical Bayes technique, mainly from Rao
and Molina (2015,ISBN:9781118735787) with book entitled "Small Area Estimation Second Edition".
This package provides another option of direct estimation using weight.
This package also features alpha and beta parameter estimation on calculating process of small area.
Those methods are Newton-Raphson and Moment which based on Wilcox (1979)
Fitting Shared Atoms Nested Models via MCMC or Variational Bayes
An efficient tool for fitting nested mixture models based on a shared set of
atoms via Markov Chain Monte Carlo and variational inference algorithms.
Specifically, the package implements the common atoms model (Denti et al., 2023),
its finite version (similar to D'Angelo et al., 2023), and a hybrid finite-infinite
model (D'Angelo and Denti, 2024). All models implement univariate nested mixtures
with Gaussian kernels equipped with a normal-inverse gamma prior distribution
on the parameters. Additional functions are provided to help analyze the
results of the fitting procedure.
References:
Denti, Camerlenghi, Guindani, Mira (2023)