Directional variance adjustment: bias reduction in covariance matrices based on factor analysis with an application to portfolio optimization.

by Daniel Bartz, Kerr Hatrick, Christian W Hesse, Klaus-Robert Müller, Steven Lemm
Published 2013-01-01

A Novel Semiblind Signal Extraction Approach for the Removal of Eye-Blink Artifact from EEGs

by Saied Sanei, Jonathon A. Chambers, Christian W. Hesse, Hamid R. Mohseni, Kianoush Nazarpour
Published 2008-04-01