Title
Hidden-layer visible deep stacking network optimized by PSO for motor imagery EEG recognition.
Abstract
A novel method called PSO optimized hidden-layer visible deep stacking network (PHVDSN) is proposed for feature extraction and recognition of motor imagery electroencephalogram (EEG) signals. A prior knowledge is introduced into the intermediate layer of deep stacking network (DSN) and the hidden nodes are expanded by the unsupervised training of restricted Boltzmann machine (RBM) for the parameter initialization. Then particle swarm optimization (PSO) is applied to optimize the input weights, aiming at alleviating the risk of being immersed in the curse of dimensionality. The performance of the proposed method is evaluated with real EEG signals from different subjects. Experimental results show that the recognition accuracy of PHVDSN is superior to some state-of-the-art feature extraction algorithms. Furthermore, on another benchmark data set where the EEG sessions for each subject are recorded on separated days, the proposed method is demonstrated to be robust against transferring from session to session. An improved Hidden-layer Visible Deep Stacking Network optimized by PSO is proposed.The hidden nodes of the network are partially visible instead of being completely hidden.We compare the new method with some other feature extraction methods on EEG data.The recognition rate of the proposed method is superior to other feature extraction algorithms.
Year
DOI
Venue
2017
10.1016/j.neucom.2016.12.039
Neurocomputing
Keywords
Field
DocType
Deep stacking network,Restricted Boltzmann machine,Particle swarm optimization,Feature extraction,EEG recognition
Particle swarm optimization,Restricted Boltzmann machine,Pattern recognition,Computer science,Feature extraction,Curse of dimensionality,Artificial intelligence,Initialization,NASA Deep Space Network,Machine learning,Stacking,Motor imagery
Journal
Volume
Issue
ISSN
234
C
0925-2312
Citations 
PageRank 
References 
2
0.39
18
Authors
4
Name
Order
Citations
PageRank
Xianlun Tang174.86
Na Zhang240.87
Jialin Zhou320.39
Qing Liu421.07