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Multichannel feature extraction and classification of epileptic states using higher order statistics and complexity measures
K. Palani Thanaraj,
Published in Engg Journals Publications
2014
Volume: 6
   
Issue: 1
Pages: 102 - 109
Abstract
Epilepsy is a brain dysfunction that is characterized by recurrent seizures. An important analysing tool in detection of epilepsy is Electroencephalogram (EEG). The random and non-linear nature of the EEG imposes great difficulty in understanding the pathological process. In this work a multichannel epilepsy detection system is proposed. A feature vector is formed by performing Higher Order Statistics (HOS) and complexity analysis on the signal. Singular Value Decomposition is then used to reduce the dimension of the feature vector. A one-way ANOVA test was performed on the extracted feature vector to select statistically significant singular values (p value < 001.0). The selected singular values are used to train the Support vector machine (SVM) based classifier. Here SVM is trained as a patient centric epilepsy classifier as the nature of epilepsy differs between patients. The classification performance of the proposed system is evaluated based on K-fold cross validation technique which showed noteworthy results.
About the journal
JournalInternational Journal of Engineering and Technology
PublisherEngg Journals Publications
ISSN23198613