다중 출력 예측을 적용한 EEG 기반 Valence-Arousal 회귀 모델

초록

Unlike previous classification-based approaches that discretize continuous emotional states, this study pro- poses a multi-output regression model for predicting emotional valence and arousal using electroencephalography (EEG) signals. This method captures the continuous and complex nature of emotions. We compared three approaches: single-output regression, which predicts valence and arousal separately, and multi-output regression and multi-output regression using chain structure, both of which predict valence and arousal simultaneously. The single-output approach, though simple and easy to analyze, showed limitations in handling complex emotional states and required two model parameters, leading to inefficiencies. However, the multi-output approach effectively handled both emo- tional dimensions simultaneously, offering a more efficient and streamlined solution while maintaining high accuracy. Both LGGNet and CCNN models demonstrated the ability to accurately predict emotional states in the valence- arousal space, closely matching actual emotional states. This indicates that the regression models can effectively cap- ture complex emotions. Future work will explore more advanced network architectures to further improve emotion recognition accuracy.

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