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A Method for Stress Detection Using Empatica E4 Bracelet and Machine-Learning Techniques
DOI:10.3390/s23073565.png)
摘要
En 中文
In response to challenging circumstances, the human body can experience marked levels of anxiety and distress. To prevent stress-related complications, timely identification of stress symptoms is crucial, necessitating the need for continuous stress monitoring. Wearable devices offer a means of real-time and ongoing data collection, facilitating personalized stress monitoring. Based on our protocol for data pre-processing, this study proposes to analyze signals obtained from the Empatica E4 bracelet using machine-learning algorithms (Random Forest, SVM, and Logistic Regression) to determine the efficacy of the abovementioned techniques in differentiating between stressful and non-stressful situations. Photoplethysmographic and electrodermal activity signals were collected from 29 subjects to extract 27 features which were then fed into three different machine-learning algorithms for binary classification. Using MATLAB after applying the chi-square test and Pearson's correlation coefficient on WEKA for features' importance ranking, the results demonstrated that the Random Forest model has the highest stability (accuracy of 76.5%) using all the features. Moreover, the Random Forest applying the chi-test for feature selection reached consistent results in terms of stress evaluation based on precision, recall, and F1-measure (71%, 60%, 65%, respectively).
Keyword:
objective stress measurement
wearable sensors
machine learning
IoT
chi-square test
Empatica E4
AI总结
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期刊
IF:
3.5
论文数:
7.2W
被引数:
20.9W
机构
引用论文
A Low-Cost, Portable Solution for Stress and Relaxation Estimation Based on a Real-Time Fuzzy Algorithm
IEEE ACCESS
IF3.6
Comparing stress prediction models using smartwatch physiological signals and participant self-reports使用智能手表生理信号和参与者自我报告比较压力预测模型

