Title
Improve the generalization of the cross-task emotion classifier using EEG based on feature selection and SVR
Abstract
Emotion is a state that comprehensively represents human feeling, thought and behavior. In our daily life, emotion has played an increasingly important role, and emotion recognition has become a research focus. What' more, the application has a broader perspective at home and abroad. Most existing studies identified emotion under specific tasks, but emotion classifiers are required to recognize emotion under any conditions in practice. Therefore, cross-task emotion recognition is a necessary step to move from the laboratory to the practical use. In this work, we designed three different induced tasks, picture-induced, music-induced and video-induced tasks. 13 (8 females and 5 males) participants were recruited and evoked to be positive, neutral and negative states respectively. The results using support vector regression highlighted that the correlation coefficient was higher for inter-task classification in video-induced and music-induced tasks, while deteriorated significantly in cross-task classification. Combining recursive feature screening and support vector regression to optimize features, the optimal feature set had better performance than all features employed, obtaining above 0.8 for correlation coefficient. These results indicated that SVR could achieve a better performance of cross-task emotion recognition, partly because it avoided the problem of emotion intensity mismatch in different tasks.
Year
DOI
Venue
2019
10.1109/ICAwST.2019.8923256
2019 IEEE 10th International Conference on Awareness Science and Technology (iCAST)
Keywords
Field
DocType
EEG,emotion recognition,cross-task,emotion classifiers,recursive feature screening,SVR
Correlation coefficient,Feature selection,Emotion recognition,Computer science,Support vector machine,Speech recognition,Classifier (linguistics),Feeling,Recursion,Electroencephalography
Conference
ISSN
ISBN
Citations 
2325-5986
978-1-7281-3822-0
0
PageRank 
References 
Authors
0.34
0
7
Name
Order
Citations
PageRank
Shuang Liu13622.95
Wenyi Wu200.34
Siyu Zhai300.34
Xiaoya Liu400.34
yufeng ke517.78
Xingwei An62111.88
Dong Ming710551.47