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Ensemble Learning Approach via Kalman Filtering for a Passive Wearable Respiratory Monitor
Journal article   Open access

Ensemble Learning Approach via Kalman Filtering for a Passive Wearable Respiratory Monitor

Sayandeep Acharya, William M Mongan, Ilhaan Rasheed, Yuqiao Liu, Endla Anday, Genevieve Dion, Adam Fontecchio, Timothy Kurzweg and Kapil R Dandekar
IEEE journal of biomedical and health informatics, v 23(3), pp 1022-1031
May 2019
PMID: 30040664
url
https://doi.org/10.1109/JBHI.2018.2857924View
Published, Version of Record (VoR) Open

Abstract

kalman filtering Biomedical measurement Sensor fusion Feature extraction wearable sensors Frequency measurement Kalman filters binary classification RFID tags Monitoring activity recognition
Objective: Utilizing passive radio frequency identification (RFID) tags embedded in knitted smartgarment devices, we wirelessly detect the respiratory state of a subject using an ensemble-based learning approach over an augmented Kalman-filtered time series of RF properties. Methods: We propose a novel approach for noise modeling using a "reference tag," a second RFID tag worn on the body in a location not subject to perturbations due to respiratory motions that are detected via the primary RFID tag. The reference tag enables modeling of noise artifacts yielding significant improvement in detection accuracy. The noise is modeled using autoregressive moving average (ARMA) processes and filtered using stateaugmented Kalman filters. The filtered measurements are passed through multiple classification algorithms (naive Bayes, logistic regression, decision trees) and a new similarity classifier that generates binary decisions based on current measurements and past decisions. Results: Our findings demonstrate that state-augmented Kalman filters for noise modeling improves classification accuracy drastically by over 7.7% over the standard filter performance. Furthermore, the fusion framework used to combine local classifier decisions was able to predict the presence or absence

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24 citations in Scopus

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Collaboration types
Domestic collaboration
Web of Science research areas
Computer Science, Information Systems
Computer Science, Interdisciplinary Applications
Mathematical & Computational Biology
Medical Informatics
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