Nonnegative matrix factorization common spatial pattern in brain machine interface

H. Tsubakida, T. Shiratori, Atsushi Ishiyama, Y. Ono

    研究成果: Conference contribution

    1 引用 (Scopus)

    抄録

    Fast and accurate discrimination of Electroencephalography (EEG) data is necessary for controlling brain machine interface. This paper introduces a novel method to discriminate 2-class motor imagery states (left and right hand) using nonnegative matrix factorization (NMF), common spatial pattern (CSP) and random forest. Conventionally CSP is used after extracting frequency band segment of EEG signal, which is called bandpass-filtered CSP (BPCSP). Especially filter bank CSP (FBCSP) has been extensively used to extract feature vectors from EEG data. However in these methods, the range of frequency band needed to be specified in advance and the performance depends on the selected frequency band. Our new method can decide the frequency band automatically by using NMF (NMFCSP). After the feature vectors were extracted from EEG data, random forests (RF) method was adopted as a classification algorithm. The mean accuracy rate of 2-class classifier using NMFCSP was 78.8±3.27%. This is higher than the accuracy rate of BPCSP (64.4±8.53%) and FBCSP (68.4±6.81%).

    元の言語English
    ホスト出版物のタイトル3rd International Winter Conference on Brain-Computer Interface, BCI 2015
    出版者Institute of Electrical and Electronics Engineers Inc.
    ISBN(印刷物)9781479974948
    DOI
    出版物ステータスPublished - 2015 3 30
    イベント2015 3rd International Winter Conference on Brain-Computer Interface, BCI 2015 - Gangwon-Do, Korea, Republic of
    継続期間: 2015 1 122015 1 14

    Other

    Other2015 3rd International Winter Conference on Brain-Computer Interface, BCI 2015
    Korea, Republic of
    Gangwon-Do
    期間15/1/1215/1/14

    Fingerprint

    Brain-Computer Interfaces
    Electroencephalography
    Factorization
    Frequency bands
    Brain
    Filter banks
    Imagery (Psychotherapy)
    Classifiers
    Hand

    ASJC Scopus subject areas

    • Human-Computer Interaction
    • Cognitive Neuroscience
    • Sensory Systems

    これを引用

    Tsubakida, H., Shiratori, T., Ishiyama, A., & Ono, Y. (2015). Nonnegative matrix factorization common spatial pattern in brain machine interface. : 3rd International Winter Conference on Brain-Computer Interface, BCI 2015 [7073021] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IWW-BCI.2015.7073021

    Nonnegative matrix factorization common spatial pattern in brain machine interface. / Tsubakida, H.; Shiratori, T.; Ishiyama, Atsushi; Ono, Y.

    3rd International Winter Conference on Brain-Computer Interface, BCI 2015. Institute of Electrical and Electronics Engineers Inc., 2015. 7073021.

    研究成果: Conference contribution

    Tsubakida, H, Shiratori, T, Ishiyama, A & Ono, Y 2015, Nonnegative matrix factorization common spatial pattern in brain machine interface. : 3rd International Winter Conference on Brain-Computer Interface, BCI 2015., 7073021, Institute of Electrical and Electronics Engineers Inc., 2015 3rd International Winter Conference on Brain-Computer Interface, BCI 2015, Gangwon-Do, Korea, Republic of, 15/1/12. https://doi.org/10.1109/IWW-BCI.2015.7073021
    Tsubakida H, Shiratori T, Ishiyama A, Ono Y. Nonnegative matrix factorization common spatial pattern in brain machine interface. : 3rd International Winter Conference on Brain-Computer Interface, BCI 2015. Institute of Electrical and Electronics Engineers Inc. 2015. 7073021 https://doi.org/10.1109/IWW-BCI.2015.7073021
    Tsubakida, H. ; Shiratori, T. ; Ishiyama, Atsushi ; Ono, Y. / Nonnegative matrix factorization common spatial pattern in brain machine interface. 3rd International Winter Conference on Brain-Computer Interface, BCI 2015. Institute of Electrical and Electronics Engineers Inc., 2015.
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