Rafael Peñaloza is an Associate Professor at the University of Milano-Bicocca, Italy. After obtaining his PhD (Dr. rer. nat.) from TU Dresden, Germany, he started working on formalisms for representing imperfect knowledge; specifically, on the properties of Fuzzy Description Logics (FDL), and later on probabilistic extensions of DLs. His main interest in this direction is the use of probabilities to model uncertainty in expert knowledge through probabilistic ontologies, and the way this uncertainty propagates to the conclusions derivable from them. He has over 100 publications in highly ranked international conferences and journals. He also likes to read and write, and take long walks.