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Comparison of Logistic Regression, K-Nearest Neighbor, Support Vector Machine, Multilayer Perceptron, and Bagging Classification and Regression Trees Using Wavelet-Based Features in Detection of Epileptic Signals

Mevlut TURE, Hakan OZTURK, Imran KURT OMURLU, Fulden CANTAS

Abstract


Classification techniques are widely used to classify the various health data. One of them is electroencephalogram (EEG) signals which are the essential component for the diagnosis and analysis of epilepsy. In this study, performances of classification techniques were compared in order to classify normal and inter-ictal EEG signals which were recorded from 10 normal subjects and 10 epileptic patients. This paper uses discrete wavelet transform (DWT) as the feature extraction methods and employs logistic regression (LR), k-nearest neighbor (KNN), support vector machine (SVM), multilayer perceptron (MLP), and bagging classification and regression trees (Bagging CART) as the classifiers. Performances of classification techniques were compared using receiver operating characteristics (ROC) curve. Areas under the ROC curves are 0.984, 0.976, 0.974, 0.950, and 0.961, respectively for SVM, KNN, Bagging CART, MLP, and LR. SVM, KNN and Bagging CART were found statistically better than MLP and LR to classify normal and epileptic EEG signals in this data set according to ROC curve. This study showed that SVM, KNN and Bagging CART are capable to provide a good discrimination between normal and epileptic EEG signals.

Keywords


K-Nearest Neighbor, Support Vector Machine, Multilayer Perceptron, Bagging, Classification and Regression Trees, Discrete Wavelet Transform, Epilepsy

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