LatinPSO: An algorithm for simultaneously inferring structure and parameters of ordinary differential equations models

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Abstract

Simultaneously inferring both the structure and parameters of Ordinary Differential Equations (ODEs) for a complex dynamic system is more practical in many systems identification problems, but it remains challenging due to the complexity of the underlying search space. In this research, we propose a novel algorithm based on Particle Swarm Optimization (PSO) and Latin Hypercube Sampling (LHS) to address the above problem. The proposed algorithm is termed LatinPSO, and it can be effectively used for inferring the structure and parameters of ODE models through time course data. To start with, the real Human Immunodeficiency Virus (HIV) model and several synthetic models are used for evaluating the performance of LatinPSO. Experimental results demonstrated that LatinPSO could find satisfactory candidate ODE models with appropriate structure and parameters.

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Tian, X., Pang, W., Wang, Y., Guo, K., & Zhou, Y. (2019). LatinPSO: An algorithm for simultaneously inferring structure and parameters of ordinary differential equations models. BioSystems, 182, 8–16. https://doi.org/10.1016/j.biosystems.2019.05.006

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