| HTLR-package {HTLR} | R Documentation |
Bayesian Logistic Regression with Heavy-Tailed Priors
Description
Efficient Bayesian multinomial logistic regression based on heavy-tailed priors. This package is suitable for classification and feature selection with high-dimensional features, such as gene expression profiles. Heavy-tailed priors can impose stronger shrinkage (compared to Gaussian and Laplace priors) to the coefficients associated with a large number of useless features, but still allow coefficients of a small number of useful features to stand out without punishment. It can also automatically make selection within a large number of correlated features. The posterior of coefficients and hyper- parameters is sampled with restricted Gibbs sampling for leveraging high-dimensionality and Hamiltonian Monte Carlo for handling high-correlations among coefficients.
References
Longhai Li and Weixin Yao (2018). Fully Bayesian Logistic Regression with Hyper-Lasso Priors for High-dimensional Feature Selection. Journal of Statistical Computation and Simulation 2018, 88:14, 2827-2851.