2012 IEEE Congress on Evolutionary Computation 2012
DOI: 10.1109/cec.2012.6256130
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Evolutionary feature selection and electrode reduction for EEG classification

Abstract: EEG signals usually have a high dimensionality which makes it difficult for classifiers to learn the difference of various classes in the underlying pattern in the signal. This paper investigates several evolutionary algorithms used to reduce the dimensionality of the data. The study presents electrode and feature reduction methods based on Genetic Algorithms (GA) and Particle Swarm Optimization (PSO). Evolution-based methods are used to generate a set of indexes presenting either electrode seats or feature po… Show more

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Cited by 22 publications
(15 citation statements)
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“…In the study of EEG, dimension reduction can be applied on both feature and/or channel dimensions. Atyabi et al [27] investigated the impact of evolutionary approaches such as Genetic Algorithm, Random Search, and PSO for feature and channel reduction among which the PSO-based feature reduction approach showed better overall generalizability. Atyabi et al [12] proposed 99% reduction through simultaneous reduction of feature and channel sets using a PSO-based approach with two layer swarm structure called PSO-DR.…”
Section: Pso Dimension Reduction (Pso-dr)mentioning
confidence: 99%
“…In the study of EEG, dimension reduction can be applied on both feature and/or channel dimensions. Atyabi et al [27] investigated the impact of evolutionary approaches such as Genetic Algorithm, Random Search, and PSO for feature and channel reduction among which the PSO-based feature reduction approach showed better overall generalizability. Atyabi et al [12] proposed 99% reduction through simultaneous reduction of feature and channel sets using a PSO-based approach with two layer swarm structure called PSO-DR.…”
Section: Pso Dimension Reduction (Pso-dr)mentioning
confidence: 99%
“…As far as the authors' knowledge is concerned, although PSO has been employed to address various issues in BCI applications such as feature selection [21][22][23][24], source localization [25,26], change point detection [27] and adaptive signal filtering [28,29], it has only been employed as static classifier, in which PSO has mostly been utilized as training algorithm for the neural classifier. PSO-based RBFNN [30] and PSO-based recurrent NN [31] are examples of these hybrid dynamic classifiers.…”
Section: Related Workmentioning
confidence: 99%
“…Several recent studies combined these algorithms together, adopting a given algorithm's strong point to complement another's weakness. In so doing, a number of hybrid methods have emerged, including GA-PSO (Atyabi et al, 2012), ACO-GA (Nemati et al, 2009), ACO-neural networks (Sivagaminathan and Ramakrishnan, 2007), PSO-catfish (Chuang et al, 2011), etc. Moreover, there also exist several approaches that have embedded local search procedures (Kabir et al, 2011;Oh et al, 2004).…”
Section: Taxonomy Of Algorithmsmentioning
confidence: 99%