high cross-valid accuracy poor prediction in online scenario
Posted: Tue Dec 11, 2018 2:03 pm
Hello,
Could someone explain why cross validation of accuracy of about 80% on xDawn p300 speller, yet it could not not correctly predict any single letter in an online scenario? Although, the class wise accuracy is very poor as it is between 4-5 % for the target, and 90-95 % for the non-target. Is this normal? Could there be any known cause of this? if not how can one improve on it? Can connectivity measure when training CSP spatial filter trainer help?
Thanks!
Could someone explain why cross validation of accuracy of about 80% on xDawn p300 speller, yet it could not not correctly predict any single letter in an online scenario? Although, the class wise accuracy is very poor as it is between 4-5 % for the target, and 90-95 % for the non-target. Is this normal? Could there be any known cause of this? if not how can one improve on it? Can connectivity measure when training CSP spatial filter trainer help?
Thanks!