I completed my PhD at the University of Freiburg in 2002, with a thesis that won the EurAI Dissertation award 2002. After postdoctoral positions at Max Planck Institute for Computer Science, Cornell University, the University of Innsbruck (where I obtained my Habilitation), and at SAP Research, I joined INRIA (Nancy, France) as a Directeur de Recherche in 2009. I became a Professor at Saarland University in 2012, where I'm heading the Foundations of Artificial Intelligence Group. I'm an elected Fellow of AAAI and EurAI.