Prof. Dr. Dragan Randjelovic, Full Professor at University Union Nikola Tesla, Faculty for diplomacy and security. Born in 1953 in Nis. He graduated from the Faculty of Electronics in Niš in 1977, before the deadline and the first of his generation, where he also received his master's degree in 1984. He defended his doctoral dissertation at the Faculty of Science and Mathematics of the University of Pristina in 1999. In his more than 45 years of research work, starting in 1977, he worked as a high school teacher. He worked at the Institute of Electronic Industry in Niš from 1980 to 1991, first as a development engineer and then as a manager of one of the five development and research laboratories, and then in the period from 1991 to 1997. he worked as a director in the factories of Elektronska industrija Niš, Ei Komerc - Consulting, Ei Računari and Ei Expokom. He was appointed from 1980 at the Mathematics Institute of the Serbian Academy of Sciences, as a researcher-intern, and in 1985 and 1990 at the Institute of Electronic Industry in Niš. title of research associate. Since 1997, he
has been working in the higher education of the Republic of Serbia, first at the Faculty of Agriculture of the University of Pristina in the subject of Informatics and Computer Science as an assistant, since 2000 as an assistant professor in that subject and in Mathematics, since 2004 as an associate professor at that faculty and at the Criminalistics - the police academy in Belgrade since 2008, where in January 2014 he was elected to the position of full professor for the narrower scientific field of Information Technology, and in 2020 he was elected to the same position and in the same field at the Faculty of Diplomacy and Security of the Union Nikola Tesla University, Belgrade.

He was at the Criminal Police Academy for two terms from 2013-2019. held the position of head of the Department of Informatics, where he was also a member of the Senate at the University of Criminalistics and Police in Belgrade, and since 2023 he has been the head of the Department of Software Engineering and IT at Gaculty of diplomacy and security in Belgrade . He also taught courses from UNO information technology at undergraduate and master's studies at the University of Belgrade - Faculty of Engineering Bor 2003-2004 and undergraduate studies at the University of Novi Sad - Faculty of Physical Education 2004-2005 as well as lectures at doctoral studies at the University of Prishtina - Faculty of Agriculture in Lesko 2009-2022. After being elected to the position of full professor at UNO Information Technology in 2022 at Union University - Nikola Tesla Belgrade, he now works at the Faculty of Diplomacy and Security in Belgrade, where he teaches undergraduate and master studies.

Prof. Ranđelović has over 300 references, 40 of which are registered on the Web of Science as well as about 150 reviewers. He is with over 400 citations on Google Scholar, of which h-index and i-index over 10. Prof. Ranđelović has published more than 15 university textbooks. Prof. Ranđelović was a mentor to more than 50 master's and specialist candidates and several doctoral candidates.

He was a researcher on the projects of the Ministry responsible for science of the Republic of Serbia in all cycles starting from 1980 and participating as a research trainee at the Mathematics Institute Belgrade until the last cycle from 2011 - 2020 as a participant in two projects and manager of one of two sub-projects on one of them "New information technologies for analytical decision-making based on the
organization of experiments and observation and their application in biological, economic and sociological systems".

He participated in and managed projects that since 2008 the Criminalistics and Police Academy worked for the needs of the Ministry of Internal Affairs of Serbia in all cycles 2008-2018.

He is a member of the Editorial Board of several international journals

1. International Journal of Recent and Futuristic Information Technology 2017.

2. International Journal of Latest Trends in Engineering and Technology 2017.

3. Computer System Networking and Telecommunications 2018.

4. Current Electronics and Telecommunications 2018.

5. Artificial Intelligence Advances 2019.

6. Mathematics and Computer Science 2019.

As well as a domestic magazine

7. Diplomacy and Security 2020.

He was co-editor two international books and author of several national monograpies in Serbia.

In 2024. he is guest editor in special issue of Symmetry journal.

• Security
• Computer Networks Security
• Cyber Security
• IT
• Artificial Intelligence
• Parallel Computing
• Multiple Criteria Decision Making

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