Zenon Gniazdowski received MSc degree in electrical engineering at the Department of Electronics at the Warsaw University of Technology in 1985. In 1991 he obtained PhD degree at the Institute of Electron Technology in Warsaw. In 2006 received his habilitation, also at the Institute of Electron Technology. In 2000, he joined the Warsaw School of Computer Science, first as a lecturer and since 2007 as a professor. His interest is focused on algorithms of data mining.