Ralf Schlüter received his Dr.rer.nat. degree in Computer Science in 2000 and habilitated in Computer Science in 2019, both at RWTH Aachen University. In May 1996, Ralf Schlüter joined the Computer Science Department at RWTH Aachen University, where he currently is Lecturer and Academic Director, leading the Automatic Speech Recognition Group at the Chair Computer Science 6 — Machine Learning and Human Language Technology. In 2019, Ralf also joined AppTek GmbH Aachen as Senior Researcher. His research interests cover sequence classification, specifically all aspects of automatic speech recognition and corresponding model architectures, decision theory, stochastic modeling, and signal analysis. Ralf served as Subject Editor for Speech Communication (2013-2019).