Kai-Min Chung Email: b88061@csie.ntu.edu.tw Tzu-Kuo Huang Email: b89034@csie.ntu.edu.tw Chih-Jen Lin Email: cjlin@csie.ntu.edu.tw Computer Science and Information Engineering National Taiwan University, Taipei, Taiwan Description: To prevent overfitting the dataset, which has only few training trials comparing to the number of the features, we downsample the signal to 25Hz. We use SVM as the classifer for this problem, since we are developers of SVM software. After the above preprocessing, we do model selection on SVM parameters, and submit the result predicted by the best model.