One dynamical input reconstruction problem: tuning of solving algorithm via numerical experiments

Autor: Lidiya Melnikova, Valeriy Rozenberg
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: AIMS Mathematics, Vol 4, Iss 3, Pp 699-713 (2019)
Druh dokumentu: article
ISSN: 2473-6988
DOI: 10.3934/math.2019.3.699/fulltext.html
Popis: The input reconstruction problem for a stochastic differential equation is investigated by means of the approach of the theory of dynamic inversion. The statement when the simultaneous reconstruction of disturbances in both the deterministic and stochastic terms of the equation is performed from the discrete information on several realizations of the stochastic process is considered. A finite-step software-oriented solving algorithm based on the method of auxiliary feedback controlled models is designed; an estimate for its convergence rate with respect to the number of measurable realizations is obtained. An empirical procedure for the automatic tuning of algorithm’s parameters in order to get best approximation results for a specific dynamical system is proposed. To optimize this time-taking process, the parallelization of calculations is applied. A model example illustrating the method proposed is given.
Databáze: Directory of Open Access Journals