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Identifiability analysis for source problem of quasi-hyperbolic equation Full article

Conference 5th International Conference on Problems of Cybernetics and Informatics
28-30 Aug 2023 , Баку
Source 2023 5th International Conference on Problems of Cybernetics and Informatics (PCI)
Compilation, IEEE. 2023. ISBN 979-8-3503-1907-1.
Output data Year: 2023, Pages: 1-4 Pages count : 4 DOI: 10.1109/PCI60110.2023.10325964
Tags identifiability, sensitivity analysis, source problem, inverse problem, optimization, regularization, diffusion-logistic model
Authors Zvonareva Tatiana 1,2 , Krivorotko Olga 1,3
Affiliations
1 Sobolev Institute of Mathematics SB RAS
2 Novosibirsk State University
3 Yugra University

Funding (1)

1 Министерство науки и высшего образования РФ FENG-2023-0004

Abstract: The source for a quasi-hyperbolic equation with a small parameter before the second derivative in time using additional measurements of integral type in fixed times is investigated. The source is parametrized by 6 constants. A sensitivity-based identifiability analysis of the source problem is carried out using the Sobol method. It is shown that all investigated source parameters are not enough sensitive to the additional measurements. The source problem has been reduced to a misfit function minimization problem and solved by the tensor train global optimization method. For 6 parameters it is shown that the smallest error value of the reconstruction of the required parameters is achieved in the case of non-zero small parameter. The reducing of the number of parameters to 3 is a regularization.
Cite: Zvonareva T. , Krivorotko O.
Identifiability analysis for source problem of quasi-hyperbolic equation
In compilation 2023 5th International Conference on Problems of Cybernetics and Informatics (PCI). – IEEE., 2023. – C.1-4. – ISBN 979-8-3503-1907-1. DOI: 10.1109/PCI60110.2023.10325964 Scopus OpenAlex
Dates:
Published print: Nov 27, 2023
Published online: Nov 27, 2023
Identifiers:
Scopus: 2-s2.0-85179896046
OpenAlex: W4389041991
Citing: Пока нет цитирований
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