Genetic-optimized classifier ensemble for cortisol salivary measurement mapping to electrocardiogram features for stress evaluation

Loo, Chu Kiong and Cheong, Soon Fatt and Seldon, Margaret A. and Mand, Ali Afzalian and Muthu Anbananthen, Kalaiarasi Sonai and Liew, Wei Shiung and Lim, Einly (2012) Genetic-optimized classifier ensemble for cortisol salivary measurement mapping to electrocardiogram features for stress evaluation. In: PRICAI 2012: Trends in Artificial Intelligence. Lecture Notes in Computer Science (7458). Springer Berlin Heidelberg, pp. 274-284. ISBN 978-3-642-32694-3

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Official URL: http://dx.doi.org/10.1007/978-3-642-32695-0_26

Abstract

This work presents our findings to map salivary cortisol measurements to electrocardiogram (ECG) features to create a physiological stress identification system. An experiment modelled on the Trier Social Stress Test (TSST) was used to simulate stress and control conditions, whereby salivary measurements and ECG measurements were obtained from student volunteers. The salivary measurements of stress biomarkers were used as objective stress measures to assign a three-class labelling (Low-Medium-High stress) to the extracted ECG features. The labelled features were then used for training and classification using a genetic-ordered ARTMAP with probabilistic voting for analysis on the efficacy of the ECG features used for physiological stress recognition. The ECG features include time-domain features of the heart rate variability and the ECG signal, and frequency-domain analysis of specific frequency bands related to the autonomic nervous activity. The resulting classification method scored approximately 60-69% success rate for predicting the three stress classes.

Item Type: Book Section
Additional Information: Book Subtitle: 12th Pacific Rim International Conference on Artificial Intelligence, Kuching, Malaysia, September 3-7, 2012. Proceedings
Subjects: T Technology > T Technology (General)
Divisions: Faculty of Information Science and Technology (FIST)
Depositing User: Ms Rosnani Abd Wahab
Date Deposited: 09 Jan 2014 04:13
Last Modified: 05 Jan 2017 05:05
URI: http://shdl.mmu.edu.my/id/eprint/4757

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