GARNN: An Interpretable Graph Attentive Recurrent Neural Network for Predicting Blood Glucose Levels via Multivariate Time Series

Fuente: arXiv
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Auteurs principaux: Piao, Chengzhe, Zhu, Taiyu, Baldeweg, Stephanie E, Taylor, Paul, Georgiou, Pantelis, Sun, Jiahao, Wang, Jun, Li, Kezhi
Format: Preprint
Publié: 2024
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author Piao, Chengzhe
Zhu, Taiyu
Baldeweg, Stephanie E
Taylor, Paul
Georgiou, Pantelis
Sun, Jiahao
Wang, Jun
Li, Kezhi
author_facet Piao, Chengzhe
Zhu, Taiyu
Baldeweg, Stephanie E
Taylor, Paul
Georgiou, Pantelis
Sun, Jiahao
Wang, Jun
Li, Kezhi
contents Accurate prediction of future blood glucose (BG) levels can effectively improve BG management for people living with diabetes, thereby reducing complications and improving quality of life. The state of the art of BG prediction has been achieved by leveraging advanced deep learning methods to model multi-modal data, i.e., sensor data and self-reported event data, organised as multi-variate time series (MTS). However, these methods are mostly regarded as ``black boxes'' and not entirely trusted by clinicians and patients. In this paper, we propose interpretable graph attentive recurrent neural networks (GARNNs) to model MTS, explaining variable contributions via summarizing variable importance and generating feature maps by graph attention mechanisms instead of post-hoc analysis. We evaluate GARNNs on four datasets, representing diverse clinical scenarios. Upon comparison with twelve well-established baseline methods, GARNNs not only achieve the best prediction accuracy but also provide high-quality temporal interpretability, in particular for postprandial glucose levels as a result of corresponding meal intake and insulin injection. These findings underline the potential of GARNN as a robust tool for improving diabetes care, bridging the gap between deep learning technology and real-world healthcare solutions.
format Preprint
id arxiv_https___arxiv_org_abs_2402_16230
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle GARNN: An Interpretable Graph Attentive Recurrent Neural Network for Predicting Blood Glucose Levels via Multivariate Time Series
Piao, Chengzhe
Zhu, Taiyu
Baldeweg, Stephanie E
Taylor, Paul
Georgiou, Pantelis
Sun, Jiahao
Wang, Jun
Li, Kezhi
Machine Learning
Artificial Intelligence
Accurate prediction of future blood glucose (BG) levels can effectively improve BG management for people living with diabetes, thereby reducing complications and improving quality of life. The state of the art of BG prediction has been achieved by leveraging advanced deep learning methods to model multi-modal data, i.e., sensor data and self-reported event data, organised as multi-variate time series (MTS). However, these methods are mostly regarded as ``black boxes'' and not entirely trusted by clinicians and patients. In this paper, we propose interpretable graph attentive recurrent neural networks (GARNNs) to model MTS, explaining variable contributions via summarizing variable importance and generating feature maps by graph attention mechanisms instead of post-hoc analysis. We evaluate GARNNs on four datasets, representing diverse clinical scenarios. Upon comparison with twelve well-established baseline methods, GARNNs not only achieve the best prediction accuracy but also provide high-quality temporal interpretability, in particular for postprandial glucose levels as a result of corresponding meal intake and insulin injection. These findings underline the potential of GARNN as a robust tool for improving diabetes care, bridging the gap between deep learning technology and real-world healthcare solutions.
title GARNN: An Interpretable Graph Attentive Recurrent Neural Network for Predicting Blood Glucose Levels via Multivariate Time Series
topic Machine Learning
Artificial Intelligence
url https://arxiv.org/abs/2402.16230