Combination of EOG and EEG for emotion recognition over different window sizes

Considering the use of a multi-modal framework to enhance emotion recognition, we propose to combine electroencephalography (EEG) and electrooculogram (EOG) through decision level fusion(DLF) and feature level fusion(FLF) for emotion recognition. By using different temporal window sizes to segment the signal, we explore the duration of the emotion of the EOG signal and the EEG signal. Then, some temporal window sizes that are friendly to both EOG signal and EEG signal are selected for segmentation and emotion recognition. According to the different degree of dependence of subjects, the accuracy of the proposed algorithm on subject-dependent and subject-independent is verified on the DEAP dataset. For subjectdependent, using feature level fusion strategy with a window size of 6 seconds, the accuracy is 0.9562 in terms of arousal, and 0.9558 in terms of valence. For subject-independent, using feature level fusion strategy with a window size of 5 seconds, the accuracy is 0.8638 in terms of arousal, and 0.8542 in terms of valence. The experimental results show that the proposed algorithm can better enhance emotion recognition.