Dr. Álvar Arnaiz-González received his M.S. degree in Computer Engineering in 2010, and his Ph.D. in Computer Science in 2018 at the University of Burgos. He served as an assistant professor at Burgos University from 2018 to 2021. He is currently an Associate Professor at the Department of Computer Science of Burgos University. His main research interests include machine learning, data mining, ensemble classifiers, and instance selection.