In 1967, K. Kazlauskas finished Kaunas Polytechnical Institute (now Kaunas Technological University (KTU)) (Engineer of Technical Cybernetics). In 1973 at KTU, K. Kazlauskas defended PhD thesis (Cybernetics and Information Theory). In 1980 according the decision of Presidium of USSR Sciences, K. Kazlauskas was granted by the Senior Scientific Worker certificate in the field of Technical Cybernetics and Information Theory. In 1999 at Vytautas Magnus University (Kaunas) and Institute of Mathematics and Informatics (Vilnius), K. Kazlauskas defended Dr. Habilitus thesis ( Physical Sciences, Informatics). From 2000s according the decision of Vytautas Magnus University, K. Kazlauskas is a full professor (Physical Sciences, Informatics). K. Kazlauskas was a chief researcher and head of the group of Technological Processes Control at Institute of Mathematics and Informatics (1994–2015) and professor of Department of Informatics at Lithuanian University of Educology (2000–2017).
Rimantas Pupeikis finished Vilnius branch of Kaunas Politechnical Institute (now Kaunas Technological University (KTU)) in 1969s. He got a speciality of mechanization and automation of machines manufacture and acquired engineer's electromechanic's degree as well. In 1969s, R.Pupeikis, as junior scientific worker, began the scientific activity in the laboratory of adaptive systems of Institute of Energetics in Kaunas. In 1979s in KTU scientific board meeting, he defended his PhD thesis in Cybernetics and Information theory. In 1994s, he prepared the Doctor Habilitus thesis in Informatics. However, the governing body of Department of Informatics of Vytautas Magnum University (VDU) in Kaunas gave rise to his dissertation requirements that were not tuned up with official ones published by Lithuanian Sciences Council. Nevertheless, the dissertation left not defended because of absence of an official support.