Bayesian Optimization-Based CNN Model for Blood Glucose Estimation Using Photoplethysmography Signals

Saifeddin Alghlayini, Mohammed Azmi Al-Betar, Mohamed Atef, Ghazi Al-Naymat

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents a novel Bayesian optimization-based convolutional neural network (CNN) model for non-invasive blood glucose level (BGL) predication using photoplethysmography (PPG) signals. The Bayesian search found the optimal CNN architecture, achieving 92.85% accuracy in Clarke error grid (CEG) zone A with a wide detection range of 50–200 mg/dL and without any projected values within zones C, D, or E. This indicates that the suggested model is clinically acceptable. The model demonstrated better results in performance assessment using mean absolute error (MAE) and root mean squared error (RMSE) measures. This was achieved by utilizing only the features extracted by the CNN model, eliminating the need for additional feature extraction. This approach reduces computational demands and improves real-time performance. Also, the model achieved a much lower Standard Error of Prediction (SEP) compared with ML-based models. The proposed model is lightweight and can be easily deployed as a stand-alone device using a microcontroller like the Arduino Nano 33 BLE Sense connected with a PPG sensor.

Original languageEnglish
Title of host publicationProceedings of the 3rd International Conference on Innovations in Computing Research (ICR’24)
EditorsKevin Daimi, Abeer Al Sadoon
PublisherSpringer Science and Business Media Deutschland GmbH
Pages142-152
Number of pages11
ISBN (Print)9783031655210
DOIs
Publication statusPublished - 2024
Event3rd International Conference on Innovations in Computing Research, ICR 2024 - Athens, Greece
Duration: Aug 12 2024Aug 14 2024

Publication series

NameLecture Notes in Networks and Systems
Volume1058 LNNS
ISSN (Print)2367-3370
ISSN (Electronic)2367-3389

Conference

Conference3rd International Conference on Innovations in Computing Research, ICR 2024
Country/TerritoryGreece
CityAthens
Period8/12/248/14/24

Keywords

  • Bayesian Optimization
  • Blood Glucose Level (BGL)
  • Clarke Error Grid (CEG)
  • Convolutional Neural Network (CNN)
  • Microcontroller (MCU)
  • Non-Invasive
  • Photoplethysmography (PPG)

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Signal Processing
  • Computer Networks and Communications

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