Title
Shapelet-transformed Multi-channel EEG Channel Selection
Abstract
AbstractThis article proposes an approach to select EEG channels based on EEG shapelet transformation, aiming to reduce the setup time and inconvenience for subjects and to improve the applicable performance of Brain-Computer Interfaces (BCIs). In detail, the method selects top-k EEG channels by solving a logistic loss-embedded minimization problem with respect to EEG shapelet learning, hyperplane learning, and EEG channel weight learning simultaneously. Especially, to learn distinguished EEG shapelets for weighting contributions of each EEG channel to the logistic loss, EEG shapelet similarity is also minimized during the procedure. Furthermore, the gradient descent strategy is adopted in the article to solve the non-convex optimization problem, which finally leads to the algorithm termed StEEGCS. In a result, classification accuracy, with those EEG channels selected by StEEGCS, is improved compared to that with all EEG channels, and classification time consumption is reduced as well. Additionally, the comparisons with several state-of-the-art EEG channel selection methods on several real-world EEG datasets also demonstrate the efficacy and superiority of StEEGCS.
Year
DOI
Venue
2020
10.1145/3397850
ACM Transactions on Intelligent Systems and Technology
Keywords
DocType
Volume
EEG channel selection, EEG shapelets, channel contribution, shapelet similarity minimization
Journal
11
Issue
ISSN
Citations 
5
2157-6904
0
PageRank 
References 
Authors
0.34
0
3
Name
Order
Citations
PageRank
Chenglong Dai172.87
De-Chang Pi217739.40
Stefanie I. Becker300.34