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Article type: Research Article
Authors: Saichand, N. Venkataa; * | Naik, S. Gopiyab
Affiliations: [a] Research scholar, PET Research Centre, PES College of Engineering, Mandya, Karnataka, India | [b] Department of Electrical and Electronics Engineering, PESCE, Mandya, Karnataka, India
Correspondence: [*] Corresponding author. N. Venkata Saichand, Research scholar, PET Research Centre, PES College of Engineering, Mandya, Karnataka, India. E-mail: [email protected].
Abstract: Epilepsy is considered a most general neurological disorder related to brain activity disruption. In epileptic seizures detection and classification, EEG (Electroencephalogram) measurements that record the brain’s electrical activities are used frequently. Generally, physicians investigate the abnormalities in the brain. However, this technique is time-consuming, faced complexity in seizure detection, and poor consistency because of data imbalance. To overcome these difficulties, Improved Empirical Mode Decomposition for feature extraction and Improved Weight Updated KNN (K-Nearest Neighbor) algorithm for classification are proposed. In the case of pre-processing, a rule-based filter, namely a wiener scalar filter with integer wavelet transform is used for multiple channels conversion and further signal to noise ratio is increased. Further in feature extraction, better features are extracted using an improved empirical mode decomposition-based bandpass filter. By using the Improved Weight updated KNN, feature extracted samples are classified incorrect manner, avoiding data imbalance issues. Feature vectors’ effective classification is performed attains higher computational speed and sensitivity. The EEG input signal of the proposed study utilizing the BONN dataset and different performance metrics such as accuracy, sensitivity, specificity, recall, f-score, and error values were performed and compared with various existing studies. From the results, it is clear that the proposed method provides effective detection for seizure and non-seizure patients compared with existing studies.
Keywords: Seizure detection, bandpass filter, rule-based filter, improved empirical mode decomposition, improved weight updated KNN
DOI: 10.3233/JIFS-222960
Journal: Journal of Intelligent & Fuzzy Systems, vol. 46, no. 4, pp. 10345-10358, 2024
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