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Demonstration
A Fast Accurate Training-less P300 Speller: Unsupervised Learning Uncovers new Possibilities
Pieter-Jan Kindermans · Hannes Verschore · David Verstraeten · Benjamin Schrauwen
Wed Dec 05 07:00 PM -- 11:59 PM (PST) @ Harrah's Special Events Center, 2nd Floor -Tahoe A & B
Event URL: http://www.youtube.com/watch?v=63nS5IiAt_4 »
The P300 speller paradigm is a Brain-Computer Interface, introduced in 1988 by Farwell and Donchin, which allows the users to type by simply focusing their attention on the desired symbol in a spelling matrix. This type of BCI has already been applied in a real world setting for patients, but is severely limited by the need for a tedious calibration session before each usage, whereby the system is trained supervisedly. In this demonstration we present our solution to this calibration session: an unsupervised P300 speller. The system is able to quickly learn online, entirely without labeled data, thus bypassing the need for calibration. The spelling accuracies are comparable to supervised spellers.
Author Information
Pieter-Jan Kindermans (Ghent University)
Hannes Verschore (Ghent University)
David Verstraeten (Ghent University)
Benjamin Schrauwen (Ghent University)
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