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• W2913703312 abstract "Wearable health monitoring has emerged as a promising solution to the growing need for remote health assessment and growing demand for personalized preventative care and wellness management. Vital signs can be monitored and alerts can be made when anomalies are detected, potentially improving patient outcomes. One major challenge for the use of wearable health devices is their energy efficiency and battery-lifetime, which motivates the recent efforts towards the development of self-powered wearable devices. This article proposes a method for context aware dynamic sensor selection for power optimized physiological prediction using multi-modal wearable data streams. We first cluster the data by physical activity using the accelerometer data, and then fit a group lasso model to each activity cluster. We find the optimal reduced set of groups of sensor features, in turn reducing power usage by duty cycling these and optimizing prediction accuracy. We show that using activity state-based contextual information increases accuracy while decreasing power usage. We also show that the reduced feature set can be used in other regression models increasing accuracy and decreasing energy burden. We demonstrate the potential reduction in power usage using a custom-designed multi-modal wearable system prototype." @default.
• W2913703312 created "2019-02-21" @default.
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• W2913703312 date "2019-01-22" @default.
• W2913703312 modified "2023-10-16" @default.
• W2913703312 title "Activity-Aware Wearable System for Power-Efficient Prediction of Physiological Responses" @default.
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• W2913703312 doi "https://doi.org/10.3390/s19030441" @default.
• W2913703312 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6387359" @default.
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