Machine learning and dengue forecasting: Comparing random forests and artificial neural networks for predicting dengue burden at national and sub-national scales in Colombia

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creativework.keywords - en

Dengue Virus

Forecasting

machine learning

disease outbreaks

Neural Networks

dc.contributor.author

Zhao, Naizhuo

Charland, Katia

Carabali, Mabel

Nsoesie, Elaine O.

Giroux, Mathieu Maheu

Rees, Erin

Yuan, Mengru

Balaguera, Cesar Garcia

Ramirez, Gloria Jaramillo

Zinszer, Kate

dc.date.accessioned

2024-04-08T13:54:29Z

dc.date.available

2024-04-08T13:54:29Z

dc.date.issued

2020-09-24

dc.description.abstract - en

The robust estimate and forecast capability of random forests (RF) has been widely recognized, however this ensemble machine learning method has not been widely used in mosquito-borne disease forecasting. In this study, two sets of RF models were developed at the national (pooled department-level data) and department level in Colombia to predict weekly dengue cases for 12-weeks ahead. A pooled national model based on artificial neural networks (ANN) was also developed and used as a comparator to the RF models. The various predictors included historic dengue cases, satellite-derived estimates for vegetation, precipitation, and air temperature, as well as population counts, income inequality, and education. Our RF model trained on the pooled national data was more accurate for department-specific weekly dengue cases estimation compared to a local model trained only on the department's data. Additionally, the forecast errors of the national RF model were smaller to those of the national pooled ANN model and were increased with the forecast horizon increasing from one-week-ahead (mean absolute error, MAE: 9.32) to 12-weeks ahead (MAE: 24.56). There was considerable variation in the relative importance of predictors dependent on forecast horizon. The environmental and meteorological predictors were relatively important for short-term dengue forecast horizons while socio-demographic predictors were relevant for longer-term forecast horizons. This study demonstrates the potential of RF in dengue forecasting with a feasible approach of using a national pooled model to forecast at finer spatial scales. Furthermore, including sociodemographic predictors is likely to be helpful in capturing longer-term dengue trends.

dc.identifier.citation

Zhao N, Charland K, Carabali M, Nsoesie EO, Maheu-Giroux M, Rees E, Yuan M, Garcia Balaguera C, Jaramillo Ramirez G, Zinszer K. Machine learning and dengue forecasting: Comparing random forests and artificial neural networks for predicting dengue burden at national and sub-national scales in Colombia. PLoS Negl Trop Dis. 2020 Sep 24;14(9):e0008056. doi: 10.1371/journal.pntd.0008056.

dc.identifier.doi

https://doi.org/10.1371/journal.pntd.0008056

dc.identifier.issn

1935-2735

dc.identifier.pubmedID

32970674

dc.identifier.uri

https://open-science.canada.ca/handle/123456789/2238

dc.language.iso

en

dc.publisher

PLOS

dc.rights - en

Creative Commons Attribution 4.0 International (CC BY 4.0)

dc.rights - fr

Creative Commons Attribution 4.0 International (CC BY 4.0)

dc.rights.uri - en

https://creativecommons.org/licenses/by/4.0/

dc.rights.uri - fr

https://creativecommons.org/licenses/by/4.0/deed.fr

dc.subject - en

Health

dc.subject - fr

Santé

dc.subject.en - en

Health

dc.subject.fr - fr

Santé

dc.title - en

Machine learning and dengue forecasting: Comparing random forests and artificial neural networks for predicting dengue burden at national and sub-national scales in Colombia

dc.type - en

Article

dc.type - fr

Article

local.article.journalissue

9

local.article.journaltitle

PLoS Neglected Tropical Diseases

local.article.journalvolume

14

local.peerreview - en

Yes

local.peerreview - fr

Oui

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