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Enhancing Grammatical Evolution Through Data Augmentation: Application to Blood Glucose Forecasting

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Applications of Evolutionary Computation (EvoApplications 2017)

Abstract

Currently, Diabetes Mellitus Type 1 patients are waiting hopefully for the arrival of the Artificial Pancreas (AP) in a near future. AP systems will control the blood glucose of people that suffer the disease, improving their lives and reducing the risks they face everyday. At the core of the AP, an algorithm will forecast future glucose levels and estimate insulin bolus sizes. Grammatical Evolution (GE) has been proved as a suitable algorithm for predicting glucose levels. Nevertheless, one the main obstacles that researches have found for training the GE models is the lack of significant amounts of data. As in many other fields in medicine, the collection of data from real patients is very complex. In this paper, we propose a data augmentation algorithm that generates synthetic glucose time series from real data. The synthetic time series can be used to train a unique GE model or to produce several GE models that work together in a combining system. Our experimental results show that, in a scarce data context, Grammatical Evolution models can get more accurate and robust predictions using data augmentation.

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Notes

  1. 1.

    On 6 June 2012, the Clinical Research Ethics Committee of the Hospital of Alcalá de Henares (Spain) authorized the use of the data collected, provided that the privacy of the data is ensured and the informed consent of patients is made.

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Acknowledgment

This research is supported by the Spanish Minister of Science and Innovation (TIN2014-54806-R).

The authors would like to thank the staff in the Principe de Asturias Hospital at Alcala de Henares for their support and assistance with this project. Special thanks also go to Maria Aranzazu Aramendi Zurimendi and Remedios Martinez Rodriguez.

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Correspondence to J. Ignacio Hidalgo .

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Velasco, J.M. et al. (2017). Enhancing Grammatical Evolution Through Data Augmentation: Application to Blood Glucose Forecasting. In: Squillero, G., Sim, K. (eds) Applications of Evolutionary Computation. EvoApplications 2017. Lecture Notes in Computer Science(), vol 10199. Springer, Cham. https://doi.org/10.1007/978-3-319-55849-3_10

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  • DOI: https://doi.org/10.1007/978-3-319-55849-3_10

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