Publikacja jest dostępna w Open Access na licencji e CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0

Publikacja wydana w : Knowledge-Based and Intelligent Information & Engineering Systems : proceedings of the 25th International Conference KES2021 / Edited by Jaroslaw Watrobski, Wojciech Salabun, Carlos Toro, Cecilia Zanni-Merk, Robert J. Howlett, Lakhmi C. Jain.

25th International Conference on Knowledge-Based and Intelligent Information & Engineering Systems, 8-10 September 2021 Szczecin, Poland.

The project is financed within the framework of the program of the Minister of Science and Higher Education under the name "Regional Excellence Initiative" in the years 2019-2022,