no code implementations • 9 Nov 2023 • Mikhail Masliaev, Ilya Markov, Alexander Hvatov
This paper explores the critical role of differentiation approaches for data-driven differential equation discovery.
1 code implementation • 9 Aug 2023 • Alexander Hvatov, Roman Titov
Differential equation discovery, a machine learning subfield, is used to develop interpretable models, particularly in nature-related applications.
1 code implementation • 9 Aug 2023 • Elizaveta Ivanchik, Alexander Hvatov
The discovery of equations with knowledge of the process origin is a tempting prospect.
1 code implementation • 29 Jun 2023 • Mikhail Maslyaev, Alexander Hvatov
Evolutionary differential equation discovery proved to be a tool to obtain equations with less a priori assumptions than conventional approaches, such as sparse symbolic regression over the complete possible terms library.
no code implementations • 7 Jun 2022 • Yakov Golovanev, Alexander Hvatov
The only interpretation that could be extracted is the eigenspace of the operator, which is an ill-posed problem for a large system.
1 code implementation • 11 May 2022 • Alexander Hvatov, Tatiana Tikhonova
Only a few "cheap and dirty" numerical methods converge on a wide class of equations without parameter tuning with the lower approximation order price.
no code implementations • 7 Jul 2021 • Alexander Hvatov, Mikhail Maslyaev, Iana S. Polonskaya, Mikhail Sarafanov, Mark Merezhnikov, Nikolay O. Nikitin
In modern data science, it is often not enough to obtain only a data-driven model with a good prediction quality.
no code implementations • 11 Mar 2021 • Mikhail Maslyaev, Alexander Hvatov
However, this approach restricts the application to the real cases, where, for example, the form of the external forcing is of interest.
1 code implementation • 3 Mar 2021 • Nikolay O. Nikitin, Ilia Revin, Alexander Hvatov, Pavel Vychuzhanin, Anna V. Kalyuzhnaya
We focused on the problem of wells location optimization and two tasks within it: improving the quality of oil production estimation and estimation of reservoir characteristics for appropriate wells allocation and parametrization, using machine learning methods.
no code implementations • 3 Apr 2020 • Alexander Hvatov, Mikhail Maslyaev
The selected terms pass to the evolutionary algorithm, which is used to evolve the selection.
no code implementations • 19 Mar 2019 • Michail Maslyaev, Alexander Hvatov, Anna Kalyuzhnaya
The data-driven models allow one to define the model structure in cases when a priori information is not sufficient to build other types of models.