The integrative correlation coefficient was developed to facilitate the validation of expression microarray results in … public datasets, by identifying genes that are reproducibly measured across studies and even across microarray platforms. In …

models. The proposed method is based on basis function approximation and LASSO-type penalties. We show that the first stage … penalized estimator with LASSO penalty reduces the model from ultra-high dimensional to a model that has size close to the true … model, but contains the true model as a valid sub model. By applying adaptive LASSO penalty to the reduced model, the second …