Olivier Pietquin obtained an Electrical Engineering degree from the Faculty of Engineering, Mons (FPMs, Belgium) in June 1999 and then joined their Signal Processing department (TCTS Lab). In 2001, he has been a visiting researcher at the Speech and Hearing lab of the University of Sheffield (UK). He obtained a PhD degree from FPMs in April 2004 and is now with the Philips Research lab in Aachen (Germany) where his research focuses on multimodal dialogue systems.