Ensemble Median Empirical Mode Decomposition for Emotion Recognition Using EEG Signal

被引:18
|
作者
Samal, Priyadarsini [1 ]
Hashmi, Mohammad Farukh [1 ]
机构
[1] Natl Inst Technol, Warangal 506004, India
关键词
Electroencephalography; Emotion recognition; Feature extraction; Empirical mode decomposition; Brain modeling; Support vector machines; Sensors; Sensor signal processing; electroencephalography (EEG); emotion recognition; ensemble empirical mode decomposition (EEMD); ensemble median empirical mode decomposition (MEEMD); intrinsic mode functions (IMFs);
D O I
10.1109/LSENS.2023.3265682
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This letter investigates ensemble median empirical mode decomposition (MEEMD), an extension model of ensemble empirical mode decomposition, and its improved characteristics for emotion recognition. It is tough to extract the hidden patterns in the electroencephalography (EEG) signal due to the signals' nonstationary nature, which is caused by the brain's complex neuronal activity. This makes it difficult to identify emotions using EEG. This research presents a feature extraction method based on MEEMD for decoding EEG signals for emotion recognition. Analysis is done on the intrinsic mode functions (IMFs) that are retrieved by EEMD and MEEMD. When identifying emotions using multichannel EEG signals, features like power spectral density, relative powers, power ratios, entropies, mean, standard deviation, and variance are used as indications of valence and arousal scales. The results indicate that the suggested method has achieved accuracy rates of 74.3% for valence and 78% for arousal classes. DEAP EEG emotion dataset is used, and both EEMD and MEEMD models are used to evaluate the results.
引用
收藏
页数:4
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