Enhancing Performance and User Engagement in Everyday Stress Monitoring: A Context-Aware Active Reinforcement Learning Approach

Fuente: arXiv
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Auteurs principaux: Aqajari, Seyed Amir Hossein, Wang, Ziyu, Tazarv, Ali, Labbaf, Sina, Jafarlou, Salar, Nguyen, Brenda, Dutt, Nikil, Levorato, Marco, Rahmani, Amir M.
Format: Preprint
Publié: 2024
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author Aqajari, Seyed Amir Hossein
Wang, Ziyu
Tazarv, Ali
Labbaf, Sina
Jafarlou, Salar
Nguyen, Brenda
Dutt, Nikil
Levorato, Marco
Rahmani, Amir M.
author_facet Aqajari, Seyed Amir Hossein
Wang, Ziyu
Tazarv, Ali
Labbaf, Sina
Jafarlou, Salar
Nguyen, Brenda
Dutt, Nikil
Levorato, Marco
Rahmani, Amir M.
contents In today's fast-paced world, accurately monitoring stress levels is crucial. Sensor-based stress monitoring systems often need large datasets for training effective models. However, individual-specific models are necessary for personalized and interactive scenarios. Traditional methods like Ecological Momentary Assessments (EMAs) assess stress but struggle with efficient data collection without burdening users. The challenge is to timely send EMAs, especially during stress, balancing monitoring efficiency and user convenience. This paper introduces a novel context-aware active reinforcement learning (RL) algorithm for enhanced stress detection using Photoplethysmography (PPG) data from smartwatches and contextual data from smartphones. Our approach dynamically selects optimal times for deploying EMAs, utilizing the user's immediate context to maximize label accuracy and minimize intrusiveness. Initially, the study was executed in an offline environment to refine the label collection process, aiming to increase accuracy while reducing user burden. Later, we integrated a real-time label collection mechanism, transitioning to an online methodology. This shift resulted in an 11% improvement in stress detection efficiency. Incorporating contextual data improved model accuracy by 4%. Personalization studies indicated a 10% enhancement in AUC-ROC scores, demonstrating better stress level differentiation. This research marks a significant move towards personalized, context-driven real-time stress monitoring methods.
format Preprint
id arxiv_https___arxiv_org_abs_2407_08215
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Enhancing Performance and User Engagement in Everyday Stress Monitoring: A Context-Aware Active Reinforcement Learning Approach
Aqajari, Seyed Amir Hossein
Wang, Ziyu
Tazarv, Ali
Labbaf, Sina
Jafarlou, Salar
Nguyen, Brenda
Dutt, Nikil
Levorato, Marco
Rahmani, Amir M.
Machine Learning
In today's fast-paced world, accurately monitoring stress levels is crucial. Sensor-based stress monitoring systems often need large datasets for training effective models. However, individual-specific models are necessary for personalized and interactive scenarios. Traditional methods like Ecological Momentary Assessments (EMAs) assess stress but struggle with efficient data collection without burdening users. The challenge is to timely send EMAs, especially during stress, balancing monitoring efficiency and user convenience. This paper introduces a novel context-aware active reinforcement learning (RL) algorithm for enhanced stress detection using Photoplethysmography (PPG) data from smartwatches and contextual data from smartphones. Our approach dynamically selects optimal times for deploying EMAs, utilizing the user's immediate context to maximize label accuracy and minimize intrusiveness. Initially, the study was executed in an offline environment to refine the label collection process, aiming to increase accuracy while reducing user burden. Later, we integrated a real-time label collection mechanism, transitioning to an online methodology. This shift resulted in an 11% improvement in stress detection efficiency. Incorporating contextual data improved model accuracy by 4%. Personalization studies indicated a 10% enhancement in AUC-ROC scores, demonstrating better stress level differentiation. This research marks a significant move towards personalized, context-driven real-time stress monitoring methods.
title Enhancing Performance and User Engagement in Everyday Stress Monitoring: A Context-Aware Active Reinforcement Learning Approach
topic Machine Learning
url https://arxiv.org/abs/2407.08215