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A robust framework for driver fatigue detection from EEG signals using enhancement of modified Z-score and multiple machine learning architectures

Physiological signals, such as electroencephalogram (EEG), are used to observe a driver’s brain activities. A portable EEG system provides several advantages, including ease of operation, cost-effectiveness, portability, and few physical restrictions. However, it can be challenging to analyse EEG si...

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Main Authors: Rafiuddin, Abdubrani, Mahfuzah, Mustafa, Zarith Liyana, Zahari
Format: Article
Language:English
Published: IIUM, Malaysia 2023
Subjects:
TK Electrical engineering. Electronics Nuclear engineering
Online Access:http://umpir.ump.edu.my/id/eprint/39121/1/A%20Robust%20Framework%20for%20Driver%20Fatigue%20Detection%20from%20EEG%20Signals%20using%20Enhancement%20of%20Modified%20Z-Score%20and%20Multiple%20Machine%20Learning%20Architecture.pdf
http://umpir.ump.edu.my/id/eprint/39121/
https://doi.org/10.31436/iiumej.v24i2.2799
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spelling my.ump.umpir.391212023-10-31T05:18:35Z http://umpir.ump.edu.my/id/eprint/39121/ A robust framework for driver fatigue detection from EEG signals using enhancement of modified Z-score and multiple machine learning architectures Rafiuddin, Abdubrani Mahfuzah, Mustafa Zarith Liyana, Zahari TK Electrical engineering. Electronics Nuclear engineering Physiological signals, such as electroencephalogram (EEG), are used to observe a driver’s brain activities. A portable EEG system provides several advantages, including ease of operation, cost-effectiveness, portability, and few physical restrictions. However, it can be challenging to analyse EEG signals as they often contain various artefacts, including muscle activities, eye blinking, and unwanted noises. This study utilised an independent component analysis (ICA) approach to eliminate such unwanted signals from the unprocessed EEG data of 12 young, physically fit male participants between the ages of 19 and 24 who took part in a driving simulation. Furthermore, driver fatigue state detection was carried out using multichannel EEG signals obtained from O1, O2, Fp1, Fp2, P3, P4, F3, and F4. An enhanced modified z-score was utilised with features extracted from a time-frequency domain continuous wavelet transform (CWT) to elevate the reliability of driver fatigue classification. The proposed methodology offers several advantages. First, multichannel EEG analysis improves the accuracy of sleep stage detection, which is vital for accurate driver fatigue detection. Second, an enhanced modified z-score in feature extraction is more robust than conventional z-score techniques, making it more effective for removing outlier values and improving classification accuracy. Third, the proposed approach for detecting driver fatigue employs multiple machine learning classifiers, such as Convolutional Neural Networks (CNNs), Recurrent Neural Networks (RNNs), Artificial Neural Networks (ANNs) that utilise Long Short-Term Memory (LSTM), and also machine learning techniques like Support Vector Machines (SVM). The evaluation of five classifiers was performed through 5-fold cross-validation. The outcomes indicate that the suggested framework attains exceptional precision in identifying driver fatigue, with an average accuracy rate of 96.07%. Among the classifiers, the ANN classifier achieved the most significant precision of 99.65%, and the SVM classifier ranked second with an accuracy of 97.89%. Based on the results of the receiver operating characteristic (ROC) and area under the curve (AUC) analysis, it was observed that all the classifiers had an outstanding performance, with an average AUC value of 0.95. This study’s contribution lies in presenting a comprehensive and effective framework that can accurately detect driver fatigue from EEG signals. IIUM, Malaysia 2023 Article PeerReviewed pdf en cc_by_4 http://umpir.ump.edu.my/id/eprint/39121/1/A%20Robust%20Framework%20for%20Driver%20Fatigue%20Detection%20from%20EEG%20Signals%20using%20Enhancement%20of%20Modified%20Z-Score%20and%20Multiple%20Machine%20Learning%20Architecture.pdf Rafiuddin, Abdubrani and Mahfuzah, Mustafa and Zarith Liyana, Zahari (2023) A robust framework for driver fatigue detection from EEG signals using enhancement of modified Z-score and multiple machine learning architectures. IIUM Engineering Journal, 24 (2). pp. 354-372. ISSN 1511-788X. (Published) https://doi.org/10.31436/iiumej.v24i2.2799 10.31436/iiumej.v24i2.2799
institution Universiti Malaysia Pahang Al-Sultan Abdullah
building UMPSA Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang Al-Sultan Abdullah
content_source UMPSA Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
topic TK Electrical engineering. Electronics Nuclear engineering
spellingShingle TK Electrical engineering. Electronics Nuclear engineering
Rafiuddin, Abdubrani
Mahfuzah, Mustafa
Zarith Liyana, Zahari
A robust framework for driver fatigue detection from EEG signals using enhancement of modified Z-score and multiple machine learning architectures
description Physiological signals, such as electroencephalogram (EEG), are used to observe a driver’s brain activities. A portable EEG system provides several advantages, including ease of operation, cost-effectiveness, portability, and few physical restrictions. However, it can be challenging to analyse EEG signals as they often contain various artefacts, including muscle activities, eye blinking, and unwanted noises. This study utilised an independent component analysis (ICA) approach to eliminate such unwanted signals from the unprocessed EEG data of 12 young, physically fit male participants between the ages of 19 and 24 who took part in a driving simulation. Furthermore, driver fatigue state detection was carried out using multichannel EEG signals obtained from O1, O2, Fp1, Fp2, P3, P4, F3, and F4. An enhanced modified z-score was utilised with features extracted from a time-frequency domain continuous wavelet transform (CWT) to elevate the reliability of driver fatigue classification. The proposed methodology offers several advantages. First, multichannel EEG analysis improves the accuracy of sleep stage detection, which is vital for accurate driver fatigue detection. Second, an enhanced modified z-score in feature extraction is more robust than conventional z-score techniques, making it more effective for removing outlier values and improving classification accuracy. Third, the proposed approach for detecting driver fatigue employs multiple machine learning classifiers, such as Convolutional Neural Networks (CNNs), Recurrent Neural Networks (RNNs), Artificial Neural Networks (ANNs) that utilise Long Short-Term Memory (LSTM), and also machine learning techniques like Support Vector Machines (SVM). The evaluation of five classifiers was performed through 5-fold cross-validation. The outcomes indicate that the suggested framework attains exceptional precision in identifying driver fatigue, with an average accuracy rate of 96.07%. Among the classifiers, the ANN classifier achieved the most significant precision of 99.65%, and the SVM classifier ranked second with an accuracy of 97.89%. Based on the results of the receiver operating characteristic (ROC) and area under the curve (AUC) analysis, it was observed that all the classifiers had an outstanding performance, with an average AUC value of 0.95. This study’s contribution lies in presenting a comprehensive and effective framework that can accurately detect driver fatigue from EEG signals.
format Article
author Rafiuddin, Abdubrani
Mahfuzah, Mustafa
Zarith Liyana, Zahari
author_facet Rafiuddin, Abdubrani
Mahfuzah, Mustafa
Zarith Liyana, Zahari
author_sort Rafiuddin, Abdubrani
title A robust framework for driver fatigue detection from EEG signals using enhancement of modified Z-score and multiple machine learning architectures
title_short A robust framework for driver fatigue detection from EEG signals using enhancement of modified Z-score and multiple machine learning architectures
title_full A robust framework for driver fatigue detection from EEG signals using enhancement of modified Z-score and multiple machine learning architectures
title_fullStr A robust framework for driver fatigue detection from EEG signals using enhancement of modified Z-score and multiple machine learning architectures
title_full_unstemmed A robust framework for driver fatigue detection from EEG signals using enhancement of modified Z-score and multiple machine learning architectures
title_sort robust framework for driver fatigue detection from eeg signals using enhancement of modified z-score and multiple machine learning architectures
publisher IIUM, Malaysia
publishDate 2023
url http://umpir.ump.edu.my/id/eprint/39121/1/A%20Robust%20Framework%20for%20Driver%20Fatigue%20Detection%20from%20EEG%20Signals%20using%20Enhancement%20of%20Modified%20Z-Score%20and%20Multiple%20Machine%20Learning%20Architecture.pdf
http://umpir.ump.edu.my/id/eprint/39121/
https://doi.org/10.31436/iiumej.v24i2.2799
_version_ 1822923828549910528
score 13.244413

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