Bayesian inference of mixed-effects ordinary differential equations models using heavy-tailed distributions

A mixed-effects ordinary differential equation (ODE) model is proposed to describe complex dynamical systems. In order to make the inference of ODE parameters robust against the outlying observations and subjects, a class of heavy-tailed distributions is applied to model the random effects of ODE pa...

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Bibliographic Details
Published inComputational statistics & data analysis Vol. 137; pp. 233 - 246
Main Authors Liu, Baisen, Wang, Liangliang, Nie, Yunlong, Cao, Jiguo
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.09.2019
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Summary:A mixed-effects ordinary differential equation (ODE) model is proposed to describe complex dynamical systems. In order to make the inference of ODE parameters robust against the outlying observations and subjects, a class of heavy-tailed distributions is applied to model the random effects of ODE parameters and measurement errors in the data. The heavy-tailed distributions are so flexible that they include the conventional normal distribution as a special case. An MCMC method is proposed to make inferences on ODE parameters within a Bayesian hierarchical framework. The proposed method is demonstrated by estimating a pharmacokinetic mixed-effects ODE model. The finite sample performance of the proposed method is evaluated using some simulation studies.
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ISSN:0167-9473
1872-7352
DOI:10.1016/j.csda.2019.03.001