Dean Palejev leads the Digital Health initiatives at the Big Data for Smart Society (GATE) Institute. He is also Associate Professor at the Institute of Mathematics and Informatics at the Bulgarian Academy of Sciences. Prior to joining GATE, he created and led for more than five years the Data Science unit of what is now the largest financial group in the country. Dr. Palejev has a MSc degree in Mathematics from Sofia University and a Ph.D. in Statistics from Yale. He has co-authored articles in some of the most prestigious scientific journals such as Science, Nature, Cell and PNAS.