Bernhard C. Geiger (Senior Member, IEEE) received the Dipl.-Ing. degree (Hons.) in electrical engineering and the Dr.Techn. degree (Hons.) in electrical and information engineering from the Graz University of Technology, Austria, in 2009 and 2014, respectively. In 2009, he joined the Signal Processing and Speech Communication Laboratory, Graz University of Technology, as a Project Assistant, where he became a Research and Teaching Associate, in 2010. He was a Senior Scientist and an Erwin Schrödinger Fellow with the Institute for Communications Engineering, Technical University of Munich, Germany, from 2014 to 2017, and a Postdoctoral Researcher with the Signal Processing and Speech Communication Laboratory, Graz University of Technology, from 2017 to 2018. He is currently a Senior Researcher with the Know-Center GmbH, Graz, Austria, where he also leads the Methods & Algorithms for AI Area. His current research interests include information theory for machine learning, theory-assisted machine learning, and information-theoretic model reduction for Markov chains and hidden Markov models.