On Transferring Spatial Filters in a Brain Reading Scenario

Jan Hendrik Metzen, Su-Kyoung Kim, Timo Duchrow, Elsa Andrea Kirchner, Frank Kirchner

In: Proceedings of the 2011 IEEE Workshop on Statistical Signal Processing. IEEE Statistical Signal Processing Workshop (SSP-2011) June 28-30 Nice France Seiten 797-800 ISBN 978-1-4577-0569-4 6/2011.


Machine learning approaches are increasingly used in brain-machineinterfaces to allow the automatic adaptation to user-specific brain patterns. One of the most crucial factors for the practical success of these systems is that this adaptation can be achieved with a minimum amount of training data since training data needs to be recorded during a calibration procedure prior to the actual usage session. To this end, one promising approach is to reuse models based on data recorded in preceding sessions of the same or other users. In this paper, we investigate under which conditions it is favorable to reuse models (more specifically spatial filters) trained on data from historic sessions compared to learning new spatial filters on the current session's calibration data. We present an empirical study in a scenario in which Brain Reading, a particular kind of brain-machine-interface, is used to support robotic telemanipulation.



Deutsches Forschungszentrum für Künstliche Intelligenz
German Research Center for Artificial Intelligence