EEG classification across sessions and across subjects through transfer learning in motor imagery-based brain-machine interface system.
Transfer learning enables the adaption of models to handle mismatches of distributions across sessions or across subjects. In this paper, we proposed a new transfer learning algorithm to classify motor imagery EEG data. By analyzing the power spectrum of EEG data related to motor imagery, the shared...
| Publicado en: | Medical & Biological Engineering & Computing Vol. 58; no. 7; pp. 1515 - 1529 |
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| Autores principales: | , , |
| Formato: | Journal Article |
| Publicado: |
Springer Nature
Jul2020
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=143819691&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 143819691 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 01400118 PO0 jtl: Medical & Biological Engineering & Computing issn: 01400118 maglogo: N pubinfo: dt: Jul2020 vid: 58 iid: 7 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 143819691 143819691 144174704 NLM32394192 10.1007/s11517-020-02176-y NLM32394192 143819691 ppf: 1515 ppct: 14 formats: fmt: @attributes: type: P tig: atl: EEG classification across sessions and across subjects through transfer learning in motor imagery-based brain-machine interface system. aug: au: Zheng, Minmin Yang, Banghua Xie, Yunlong affil: School of Mechatronic Engineering and Automation, Research Center of Brain Computer Engineering, Shanghai University, 200444, Shanghai, China sug: subj: Signal Processing, Computer Assisted Brain-Computer Interfaces Electroencephalography Methods Research Subjects Female Electroencephalography Equipment and Supplies Young Adult Hand Algorithms Male Female Male ab: Transfer learning enables the adaption of models to handle mismatches of distributions across sessions or across subjects. In this paper, we proposed a new transfer learning algorithm to classify motor imagery EEG data. By analyzing the power spectrum of EEG data related to motor imagery, the shared features across sessions or across subjects, namely, the mean and variance of model parameters, are extracted. Then, select the data sets that were most relevant to the new data set according to Euclidean distance to update the shared features. Finally, utilize the shared features and subject/session-specific features jointly to generate a new model. We evaluated our algorithm by analyzing the motor imagery EEG data from 10 healthy participants and a public data set from BCI competition IV. The classification accuracy of the proposed transfer learning is higher than that of traditional machine learning algorithms. The results of the paired t test showed that the classification results of PSD and the transfer learning algorithm were significantly different (p = 2.0946e-9), and the classification results of CSP and the transfer learning algorithm were significantly different (p = 1.9122e-6). The test accuracy of data set 2a of BCI competition IV was 85.7% ± 5.4%, which was higher than that of related traditional machine learning algorithms. Preliminary results suggested that the proposed algorithm can be effectively applied to the classification of motor imagery EEG signals across sessions and across subjects and the performance is better than that of the traditional machine learning algorithms. It can be promising to be applied to the field of brain-computer interface (BCI). Graphical abstract. pubtype: Academic Journal doctype: Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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