Stress Detection Using Wearable Physiological and Sociometric Sensors
It addresses the problem of automatic stress detection for individuals in social situations, but the results are incremental as they are based on a controlled lab setting.
This paper combines physiological and sociometric sensors to detect stress during a Trier social stress test, achieving accurate discrimination between stressful and neutral situations using machine learning classifiers.
Stress remains a significant social problem for individuals in modern societies. This paper presents a machine learning approach for the automatic detection of stress of people in a social situation by combining two sensor systems that capture physiological and social responses. We compare the performance using different classifiers including support vector machine, AdaBoost, and k-nearest neighbor. Our experimental results show that by combining the measurements from both sensor systems, we could accurately discriminate between stressful and neutral situations during a controlled Trier social stress test (TSST). Moreover, this paper assesses the discriminative ability of each sensor modality individually and considers their suitability for real-time stress detection. Finally, we present an study of the most discriminative features for stress detection.