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Title: Learning from the past: a short term forecast method for the COVID-19 incidence curve
Authors: Morel, Jean David
Morel, Jean Michel
Alvarez, Luis 
UNESCO Clasification: 120601 Construcción de algoritmos
3202 Epidemologia
Issue Date: 2023
Journal: PLoS Computational Biology 
Abstract: The COVID-19 pandemy has created a radically new situation where most countries provide raw measurements of their daily incidence and disclose them in real time. This enables new machine learning forecast strategies where the prediction might no longer be based just on the past values of the current incidence curve, but could take advantage of observations in many countries. We present such a simple global machine learning procedure using all past daily incidence trend curves. Each of the 27,418 COVID-19 incidence trend curves in our database contains the values of 56 consecutive days extracted from observed incidence curves across 61 world regions and countries. Given a current incidence trend curve observed over the past four weeks, its forecast in the next four weeks is computed by matching it with the first four weeks of all samples, and ranking them by their similarity to the query curve. Then the 28 days forecast is obtained by a statistical estimation combining the values of the 28 last observed days in those similar samples. Using comparison performed by the European Covid-19 Forecast Hub with the current state of the art forecast methods, we verify that the proposed global learning method, EpiLearn, compares favorably to methods forecasting from a single past curve.
ISSN: 1553-734X
DOI: 10.1371/journal.pcbi.1010790
Source: PLoS Computational Biology [ISSN 1553-734X], v. 19 (6), (Junio 2023)
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