EEG-based Confusion Recognition Using Different Machine Learning Methods

Massive Open Online Course (MOOC) has emerged as a key trend. As a way of teaching online, the main shortcoming of MOOC is lacking feedback because there is a distance in both time and space between teachers and students. This study proposes the confusion recognition system based on Electroencephalography(EEG). We apply machine learning methods, including Naive Bayes, KNN, Random Forest, XGBoost, and also a deep learning method, LSTM, on the EEG data set respectively to detect whether a student feel confused. We find that LSTM shows better performance than any machine learning methods we use. The average accuracy of LSTM classifier is 78.1%. This study shows the significance of detecting confusion through EEG and helping students in improving learning efficiency.