A Machine Learning Approach to EEG-based Prediction of Human Affective States Using Recursive Feature Elimination Method

被引:1
|
作者
Dadebayev, Didar [1 ]
Wei, Goh Wei [1 ]
Xion, Tan Ee [2 ]
机构
[1] Taylors Univ, Sch Comp Sci & Engn, Subang Jaya, Malaysia
[2] Int Med Univ, Sch Pharm, Life Sci, Bukit Jalil, Malaysia
关键词
D O I
10.1051/matecconf/202133504001
中图分类号
TP301 [理论、方法];
学科分类号
081202 ;
摘要
Emotion recognition, as a branch of affective computing, has attracted great attention in the last decades as it can enable more natural brain-computer interface systems. Electroencephalography (EEG) has proven to be an effective modality for emotion recognition, with which user affective states can be tracked and recorded, especially for primitive emotional events such as arousal and valence. Although brain signals have been shown to correlate with emotional states, the effectiveness of proposed models is somewhat limited. The challenge is improving accuracy, while appropriate extraction of valuable features might be a key to success. This study proposes a framework based on incorporating fractal dimension features and recursive feature elimination approach to enhance the accuracy of EEG-based emotion recognition. The fractal dimension and spectrum-based features to be extracted and used for more accurate emotional state recognition. Recursive Feature Elimination will be used as a feature selection method, whereas the classification of emotions will be performed by the Support Vector Machine (SVM) algorithm. The proposed framework will be tested with a widely used public database, and results are expected to demonstrate higher accuracy and robustness compared to other studies. The contributions of this study are primarily about the improvement of the EEG-based emotion classification accuracy. There is a potential restriction of how generic the results can be as different EEG dataset might yield different results for the same framework. Therefore, experimenting with different EEG dataset and testing alternative feature selection schemes can be very interesting for future work.
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页数:14
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