Dr. Ivan Vajs received the B.Sc., M.Sc., and Ph.D. degrees in electrical engineering from the School of Electrical Engineering, University of Belgrade, Belgrade, Serbia, in 2019, 2020 and 2023, respectively. Now, he is also a Junior Research Assistant with the Innovation Center, School of Electrical Engineering, University of Belgrade. His research interests include signal processing in the fields of biomedical engineering, data science and machine learning. He has participated in two projects that were part of the Innovation Vouchers Program of the Innovation Fund of the Republic of Serbia and the Project Development of Science and Technology of the Ministry of Education, Science and Technological Development of the Republic of Serbia. He has also participated in Project AVANTES of the Program for Development of Projects in the field of artificial intelligence of the Science Fund of the Republic of Serbia and a Horizon 2020 Project—L4MS. He is also working on machine learning methods in low-cost air quality sensor calibration.