Restart Operator for Optimization Heuristics in Solving Linear Dynamical System Parameter Identification Problem

Ryzhikov, Ivan; Brester, Christina

doi:10.5220/0008495302520258

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“…The problem of parametric identification is mainly solved with the help of evolutionary algorithms. Thus, evolutionary approaches to parametric identification are considered in the following papers [9,10].…”

Section: Introductionmentioning

confidence: 99%

Evolutionary Approaches to the Identification of Dynamic Processes in the Form of Differential Equations and Their Systems

Karaseva

Semenkin

2022

Algorithms

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Evolutionary approaches are widely applied in solving various types of problems. The paper considers the application of EvolODE and EvolODES approaches to the identification of dynamic systems. EvolODE helps to obtain a model in the form of an ordinary differential equation without restrictions on the type of the equation. EvolODES searches for a model in the form of an ordinary differential equation system. The algorithmic basis of these approaches is a modified genetic programming algorithm for finding the structure of ordinary differential equations and differential evolution to optimize the values of numerical constants used in the equation. Testing for these approaches on problems in the form of ordinary differential equations and their systems was conducted. The influence of noise present in the data and the sample size on the model error was considered for each of the approaches. The symbolic accuracy of the resulting equations was studied. The proposed approaches make it possible to obtain models in symbolic form. They will provide opportunities for further interpretation and application.

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Section: Introductionmentioning

confidence: 99%