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Driver Drowsiness Detection Based on Steering Wheel Data Applying Adaptive Neuro-Fuzzy Feature Selection

1
Institute of Automotive Engineering, Mechanical Engineering Department, Graz University of Technology, Graz 8010, Austria
2
Mechanical Engineering Department, K.N. Toosi University of Technology, Tehran 19991-43344, Iran
*
Author to whom correspondence should be addressed.
Sensors 2019, 19(4), 943; https://doi.org/10.3390/s19040943
Received: 15 January 2019 / Revised: 11 February 2019 / Accepted: 18 February 2019 / Published: 22 February 2019
(This article belongs to the Section Intelligent Sensors)
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Abstract

This paper presents a novel feature selection method to design a non-invasive driver drowsiness detection system based on steering wheel data. The proposed feature selector can select the most related features to the drowsiness level to improve the classification accuracy. This method is based on the combination of the filter and wrapper feature selection algorithms using adaptive neuro-fuzzy inference system (ANFIS). In this method firstly, four different filter indexes are applied on extracted features from steering wheel data. After that, output values of each filter index are imported as inputs to a fuzzy inference system to determine the importance degree of each feature and select the most important features. Then, the selected features are imported to a support vector machine (SVM) for binary classification to classify the driving conditions in two classes of drowsy and awake. Finally, the classifier accuracy is exploited to adjust parameters of an adaptive fuzzy system using a particle swarm optimization (PSO) algorithm. The experimental data were collected from about 20.5 h of driving in the simulator. The results show that the drowsiness detection system is working with a high accuracy and also confirm that this method is more accurate than the recent available algorithms. View Full-Text
Keywords: adaptive neuro-fuzzy inference system (ANFIS); driver drowsiness detection; feature selection; particle swarm optimization (PSO) adaptive neuro-fuzzy inference system (ANFIS); driver drowsiness detection; feature selection; particle swarm optimization (PSO)
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Arefnezhad, S.; Samiee, S.; Eichberger, A.; Nahvi, A. Driver Drowsiness Detection Based on Steering Wheel Data Applying Adaptive Neuro-Fuzzy Feature Selection. Sensors 2019, 19, 943.

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