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2 2021

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Supporting remote education in the conditions of the pandemic in Poland

Karolina Gabriel

Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska

2021

z. 153

103--110

Purpose: The aim of the paper is to compare the possibilities of providing education in the field of on-line learning by presenting tools enabling teaching in the pandemic conditions. Design/methodology/approach: The following methods are used: literature review, analysis of websites of companies, which offering the use of education platforms necessary to conduct distance learning, case study analysis of platforms, which are a remote education tool: Integrated Educational Platform, Microsoft Teams, Google Classrooma and ClickMeeting. Findings: One of the first solutions to prevent the spread of the SARS-CoV-2 virus pandemic in Poland was the suspension of teaching, educational and care activities in schools and educational institutions for designated periods. The next stage was the introduction and implementation of the obligation to carry out educational tasks using distance learning methods and techniques. Remote learning, which was introduced in a relatively short time, requires meeting many conditions by potential users, i.e. having efficient computer equipment, a place at home to study, access to high-speed internet and educational platforms. Research limitations/implications: The article contains an analysis based on the examples of various educational platforms applied in Poland. In further research, it is possible to create a survey to find out about users’ opinions on educational platforms. With the advancement of technology as well as users' feedback, online learning can be significantly improved in the near future. There are some limitations in research related to conducting distance learning in the country, due to the short period of analysis, lack of information and the difficulty of obtaining comparable data. Originality/value: The presented different solutions, which are used for distance learning, are a comparison of various educational platforms and may constitute their recommendations. Hence the analysis of the case of using various educational platforms in the pandemic reality. The article presents the value of teaching for the society and for its continued proper functioning. Currently, the conditions of the pandemic place significant restrictions on all kinds of education, in schools, colleges, businesses and other training. The article is addressed both to pupils, students, as well as to professionals who use the platforms for training or improvement of their business activities.

Self-improving Q-learning based controller for a class of dynamical processes

Musial Jakub, Stebel Krzysztof, Czeczot Jacek

Archives of Control Sciences

2021

Vol. 31, No. 3

527--551

This paper presents how Q-learning algorithm can be applied as a general-purpose self-improving controller for use in industrial automation as a substitute for conventional PI controller implemented without proper tuning. Traditional Q-learning approach is redefined to better fit the applications in practical control loops, including new definition of the goal state by the closed loop reference trajectory and discretization of state space and accessible actions (manipulating variables). Properties of Q-learning algorithm are investigated in terms of practical applicability with a special emphasis on initializing of Q-matrix based only on preliminary PI tunings to ensure bumpless switching between existing controller and replacing Q-learning algorithm. A general approach for design of Q-matrix and learning policy is suggested and the concept is systematically validated by simulation in the application to control two examples of processes exhibiting first order dynamics and oscillatory second order dynamics. Results show that online learning using interaction with controlled process is possible and it ensures significant improvement in control performance compared to arbitrarily tuned PI controller.