Classification of epilepsy seizure phase using interval type-2 fuzzy support vector machines

NEUROCOMPUTING

卷:199

Article

Ekong, Udeme¹  Lam, H. K.¹  Xiao, Bo¹  Ouyang, Gaoxiang²  Liu, Hongbin¹  Chan, Kit Yan³  Ling, Sai Ho⁴ 

[1] Kings Coll London, Dept Informat, London WC2R 2LS, England

[2] Beijing Normal Univ, Sch Brain & Cognit Sci, State Key Lab Cognit Neurosci & Learning, 19 XinJieKoWai St, Beijing 100875, Peoples R China

[3] Curtin Univ, Dept Elect & Comp Engn, Perth, WA 6845, Australia

[4] Univ Technol Sydney, Fac Engn & Informat Technol, Ctr Hlth Technol, Sydney, NSW 2007, Australia

关键词: Classification;    Epilepsy;    Fuzzy support vector machine;    Interval type-2 fuzzy sets;   

DOI  :  10.1016/j.neucom.2016.03.033

来源: Elsevier

【 摘 要 】

An interval type-2 fuzzy support vector machine (IT2FSVM) is proposed to solve a classification problem which aims to classify three epileptic seizure phases (seizure-free, pre-seizure and seizure) from the electroencephalogram (EEG) captured from patients with neurological disorder symptoms. The effectiveness of the IT2FSVM classifier is evaluated based on a set of EEG samples which are collected from 10 patients at Peking university hospital. The EEG samples for the three seizure phases were captured by the 112 2-s 19 channel EEG epochs, where each patient was extracted for each sample. Feature extraction was used to reduce the feature vector of the EEG samples to 45 elements and the EEG samples with the reduced features are used for training the IT2FSVM classifier. The classification results obtained by the IT2FSVM are compared with three traditional classifiers namely Support Vector Machine, k-Nearest Neighbor and naive Bayes. The experimental results show that the IT2FSVM classifier is able to achieve superior learning capabilities with respect to the uncontaminated samples when compared with the three classifiers. In order to validate the level of robustness of the IT2FSVM, the original EEG samples are contaminated with Gaussian white noise at levels of 0.05, 0.1, 0.2 and 0.5. The simulation results show that the IT2FSVM classifier outperforms the traditional classifiers under the original dataset and also shows a high level of robustness when compared to the traditional classifiers with white Gaussian noise applied to it. (C) 2016 Elsevier B.V. All rights reserved.

【 授权许可】

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