A phenomenological model for COVID-19 data taking into account neighboring-provinces effect and random noise.

IF 1.4 3区 数学 Q2 STATISTICS & PROBABILITY
Julia Calatayud, Marc Jornet, Jorge Mateu
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引用次数: 0

Abstract

We model the incidence of the COVID-19 disease during the first wave of the epidemic in Castilla-Leon (Spain). Within-province dynamics may be governed by a generalized logistic map, but this lacks of spatial structure. To couple the provinces, we relate the daily new infections through a density-independent parameter that entails positive spatial correlation. Pointwise values of the input parameters are fitted by an optimization procedure. To accommodate the significant variability in the daily data, with abruptly increasing and decreasing magnitudes, a random noise is incorporated into the model, whose parameters are calibrated by maximum likelihood estimation. The calculated paths of the stochastic response and the probabilistic regions are in good agreement with the data.

考虑到邻省效应和随机噪声的 COVID-19 数据现象学模型。
我们模拟了卡斯蒂利亚-莱昂(西班牙)第一波疫情期间 COVID-19 的发病率。省内动态可能受广义逻辑图支配,但缺乏空间结构。为了将各省联系起来,我们通过一个与密度无关的参数将每日新感染病例联系起来,该参数具有正空间相关性。输入参数的点值通过优化程序进行拟合。为适应每日数据的显著变化(幅度突然增大或减小),我们在模型中加入了随机噪声,并通过最大似然估计法对其参数进行校准。计算得出的随机响应路径和概率区域与数据十分吻合。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Statistica Neerlandica
Statistica Neerlandica 数学-统计学与概率论
CiteScore
2.60
自引率
6.70%
发文量
26
审稿时长
>12 weeks
期刊介绍: Statistica Neerlandica has been the journal of the Netherlands Society for Statistics and Operations Research since 1946. It covers all areas of statistics, from theoretical to applied, with a special emphasis on mathematical statistics, statistics for the behavioural sciences and biostatistics. This wide scope is reflected by the expertise of the journal’s editors representing these areas. The diverse editorial board is committed to a fast and fair reviewing process, and will judge submissions on quality, correctness, relevance and originality. Statistica Neerlandica encourages transparency and reproducibility, and offers online resources to make data, code, simulation results and other additional materials publicly available.
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