Akbari, Hesam and Sadiq, Muhammad Tariq and Payan, Malih and Esmaili, Somayeh Saraf and Baghri, Hourieh and Bagheri, Hamed (2021) Depression Detection Based on Geometrical Features Extracted from SODP Shape of EEG Signals and Binary PSO. Traitement du Signal, 38 (1). pp. 13-26. DOI https://doi.org/10.18280/ts.380102
Akbari, Hesam and Sadiq, Muhammad Tariq and Payan, Malih and Esmaili, Somayeh Saraf and Baghri, Hourieh and Bagheri, Hamed (2021) Depression Detection Based on Geometrical Features Extracted from SODP Shape of EEG Signals and Binary PSO. Traitement du Signal, 38 (1). pp. 13-26. DOI https://doi.org/10.18280/ts.380102
Akbari, Hesam and Sadiq, Muhammad Tariq and Payan, Malih and Esmaili, Somayeh Saraf and Baghri, Hourieh and Bagheri, Hamed (2021) Depression Detection Based on Geometrical Features Extracted from SODP Shape of EEG Signals and Binary PSO. Traitement du Signal, 38 (1). pp. 13-26. DOI https://doi.org/10.18280/ts.380102
Abstract
Late detection of depression is having detrimental consequences including suicide thus there is a serious need for an accurate computer-aided system for early diagnosis of depression. In this research, we suggested a novel strategy for the diagnosis of depression based on several geometric features derived from the Electroencephalography (EEG) signal shape of the second-order differential plot (SODP). First, various geometrical features of normal and depression EEG signals were derived from SODP including standard descriptors, a summation of the angles between consecutive vectors, a summation of distances to coordinate, a summation of the triangle area using three successive points, a summation of the shortest distance from each point relative to the 45-degree line, a summation of the centroids to centroid distance of successive triangles, central tendency measure and summation of successive vector lengths. Second, Binary Particle Swarm Optimization was utilized for the selection of suitable features. At last, the features were fed to support vector machine and k-nearest neighbor (KNN) classifiers for the identification of normal and depressed signals. The performance of the proposed framework was evaluated by the recorded bipolar EEG signals from 22 normal and 22 depressed subjects. The results provide an average classification accuracy of 98.79% with the KNN classifier using city-block distance in a ten-fold cross-validation strategy. The proposed system is accurate and can be used for the early diagnosis of depression. We showed that the proposed geometrical features are better than extracted features in the time, frequency, time-frequency domains as it helps in visual inspection and provide up to 17.56% improvement in classification accuracy in contrast to those features.
Item Type: | Article |
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Uncontrolled Keywords: | electroencephalogram signal; depression; second-order differential plot; geometrical features; EEG classification |
Divisions: | Faculty of Science and Health Faculty of Science and Health > Computer Science and Electronic Engineering, School of |
SWORD Depositor: | Unnamed user with email elements@essex.ac.uk |
Depositing User: | Unnamed user with email elements@essex.ac.uk |
Date Deposited: | 27 Sep 2024 10:56 |
Last Modified: | 30 Oct 2024 21:36 |
URI: | http://repository.essex.ac.uk/id/eprint/38023 |
Available files
Filename: Depression Detection Based on Geometrical Features Extracted from SODP Shape of EEG Signals and Binary PSO.pdf