A Tunable-Q wavelet transform and quadruple symmetric pattern based EEG signal classification method.

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A Tunable-Q wavelet transform and quadruple symmetric pattern based EEG signal classification method.

Med Hypotheses. 2019 Dec 10;134:109519

Authors: Aydemir E, Tuncer T, Dogan S

Abstract
Electroencephalography (EEG) signals have been widely used to diagnose brain diseases for instance epilepsy, Parkinson’s Disease (PD), Multiple Skleroz (MS), and many machine learning methods have been proposed to develop automated disease diagnosis methods using EEG signals. In this method, a multilevel machine learning method is presented to diagnose epilepsy disease. The proposed multilevel EEG classification method consists of pre-processing, feature extraction, feature concatenation, feature selection and classification phases. In order to create levels, Tunable-Q wavelet transform (TQWT) is chosen and 25 frequency coefficients sub-bands are calculated by using TQWT in the pre-processing. In the feature extraction phase, quadruple symmetric pattern (QSP) is chosen as feature extractor and extracts 256 features from the raw EEG signal and the extracted 25 sub-bands. In the feature selection phase, neighborhood component analysis (NCA) is used. The 128, 256, 512 and 1024 most significant features are selected in this phase. In the classification phase, k nearest neighbors (kNN) classifier is utilized as classifier. The proposed method is tested on seven cases using Bonn EEG dataset. The proposed method achieved 98.4% success rate for 5 classes case. Therefore, our proposed method can be used in bigger datasets for more validation.

PMID: 31877443 [PubMed – as supplied by publisher]

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