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Implementation of EEG Emotion Recognition System Based on Hierarchical Convolutional Neural Networks
Jinpeng Li; Zhaoxiang Zhang; Huiguang He
2016-11-28
Conference NameThe eighth International Conference on Brain Inspired Cognitive Systems
Source PublicationBICS 2016
Conference Date28-30 November 2016
Conference PlaceBeijing, China
AbstractDeep Learning (DL) is capable of excavating features hidden deep in complex data. In this paper, we introduce hierarchical convolutional neural networks (HCNN) to implement the EEG-based emotion classifier (positive, negative and neutral) in a movie-watching task. Differential Entropy (DE) is calculated as features at certain time interval for each channel. We organize features from different channels into two dimensional maps to train HCNN classifier. This approach extracts features contained in the spatial topology of electrodes directly, which is often neglected by the widely-used one-dimensional models. The performance of HCNN was compared with one-dimensional deep model SAE (Stacked Autoencoder), as well as traditional shallow models SVM and KNN. We find that HCNN (88.2% ± 3.5%) is better than SAE (85.4% ± 8.1%), and deep models are more favorable in emotion recognition BCI (Brain-computer Interface) system than shallow models. Moreover, we show that models learned on one person is hard to transfer to others and the individual difference in EEG emotion-related signal is significant among peoples. Finally, we find Beta and Gamma (rather than Delta, Theta and Alpha) waves play the key role in emotion recognition.
KeywordEmotion Recognition Eeg Deep Learning Hcnn Brain Wave
Document Type会议论文
Identifierhttp://ir.ia.ac.cn/handle/173211/13305
Collection类脑智能研究中心
Corresponding AuthorHuiguang He
Recommended Citation
GB/T 7714
Jinpeng Li,Zhaoxiang Zhang,Huiguang He. Implementation of EEG Emotion Recognition System Based on Hierarchical Convolutional Neural Networks[C],2016.
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