Search Results for author: Gwenaël G. R. Leday

Found 2 papers, 2 papers with code

Shrinkage estimation of large covariance matrices using multiple shrinkage targets

2 code implementations21 Sep 2018 Harry Gray, Gwenaël G. R. Leday, Catalina A. Vallejos, Sylvia Richardson

Linear shrinkage estimators of a covariance matrix --- defined by a weighted average of the sample covariance matrix and a pre-specified shrinkage target matrix --- are popular when analysing high-throughput molecular data.

Methodology Applications

Fast Bayesian inference in large Gaussian graphical models

2 code implementations21 Mar 2018 Gwenaël G. R. Leday, Sylvia Richardson

Specifically, we introduce closed-form Bayes factors under the Gaussian conjugate model to evaluate the null hypotheses of marginal and conditional independence between variables.

Methodology

Cannot find the paper you are looking for? You can Submit a new open access paper.