Transfer of semi-supervised broad learning system in electroencephalography signal classification

Yukai Zhou, Qingshan She, Yuliang Ma, Wanzeng Kong, Yingchun Zhang

Research output: Contribution to journalReview articlepeer-review

6 Scopus citations

Abstract

Electroencephalography (EEG) signal classification is a crucial part in motor imagery brain–computer interface (BCI) system. Traditional supervised learning methods have performed well pleasing in EEG classification. Unfortunately, the unlabeled samples are easier to collect than labeled samples. In addition, recent studies have shown that it may degenerate performance of semi-supervised learning by exploiting unlabeled samples without selection. To address these issues, a novel semi-supervised broad learning system with transfer learning (TSS-BLS) is proposed in this paper. First, the pseudo-labels of unlabeled samples are obtained using the joint distribution adaptation algorithm. TSS-BLS is then constructed by an improved manifold regularization framework containing both labeled and pseudo-label information. Finally, the effectiveness of the proposed TSS-BLS is evaluated on three BCI competition datasets and four benchmark datasets from UCI repository and compared with seven state-of-the-art algorithms, including ELM, SS-ELM, HELM, SVM, LapSVM, BLS and GSS-BLS. Experimental results show that the performance of TSS-BLS is superior to BLS and GSS-BLS on average. It is thereby shown that TSS-BLS is safe and efficient for EEG classification.

Original languageEnglish (US)
Pages (from-to)10597-10613
Number of pages17
JournalNeural Computing and Applications
Volume33
Issue number16
DOIs
StatePublished - Aug 2021

Keywords

  • Brain–computer interface
  • Broad learning system
  • Electroencephalogram
  • Semi-supervised learning
  • Transfer learning

ASJC Scopus subject areas

  • Software
  • Artificial Intelligence

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