NDLI: Spatio-temporally regularized common spatial patterns (STR-CSP) for single-trial EEG classification

Content Provider	IEEE Xplore Digital Library
Author	Feifei Qi Yuanqing Li Wei Wu
Copyright Year	2014
Description	Author affiliation: Sch. of Autom. Sci. & Eng., South China Univ. of Technol., Guangzhou, China (Feifei Qi; Yuanqing Li; Wei Wu)
Abstract	Common Spatial Patterns (CSP) is among the most popular spatial filtering methods used in motor imagery based brain-computer interfaces (BCIs). In this paper, a novel algorithm termed spatio-temporally regularized common spatial patterns (STR-CSP) is proposed to enhance CSP such that discriminative spatio-temporal EEG patterns can be extracted. Unlike most previous CSP-based spatio-temporal filtering algorithms in which spatial and temporal filters are optimized in a sequential manner, STR-CSP optimizes spatio-temporal filters simultaneously under a unified criterion with analytical solutions. Moreover, the algorithm enables us to alleviate the over-fitting problem by L2-norm regularization. Successful application to the analysis of a BCI competition EEG data set comprising 18 subsets demonstrates the superiority of STR-CSP over contemporary methods.
Starting Page	7212
Ending Page	7215
File Size	1324138
Page Count	4
File Format	PDF
ISBN	9789881563873
ISSN	19341768
DOI	10.1109/ChiCC.2014.6896192
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-07-28
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	TCCT, CAA
Subject Keyword	Algorithm design and analysis combined spatio-temporal filter motor imagery (MI) Electroencephalography Brain-computer interfaces Brain-Computer Interface (BCI) common spatial patterns (CSP) Optimization electroencephalography (EEG) Accuracy Finite impulse response filters l2-norm regularization Eigenvalues and eigenfunctions
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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