Parameter estimation for semiparametric ordinary differential equation models

Hongqi Xue, Arun Kumar and Hulin Wu

Communications in Statistics - Theory and Methods, 2019, vol. 48, issue 24, 5985-6004

Abstract: We propose a new class of two-stage parameter estimation methods for semiparametric ordinary differential equation (ODE) models. In the first stage, state variables are estimated using a penalized spline approach; In the second stage, form of numerical discretization algorithms for an ODE solver is used to formulate estimating equations. Estimated state variables from the first stage are used to obtain more data points for the second stage. Asymptotic properties for the proposed estimators are established. Simulation studies show that the method performs well, especially for small sample. Real life use of the method is illustrated using Influenza specific cell-trafficking study.

Date: 2019
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DOI: 10.1080/03610926.2018.1523433

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