I am a researcher at Adobe Research in San Jose (CA). My research interests include Machine Learning and applications. I am also an Action Editor of the Journal of Machine Learning Research. In the past I have held positions as Assistant Professor at the University of Amsterdam, The Netherlands (2001-2007), Assistant Professor at the Technical University of Crete, Greece (2007-2010), Principal Scientist in OneTree Solutions, Luxembourg (2010-2012), and Principal Investigator at the Luxembourg Centre for Systems Biomedicine, Luxembourg (2010-2014). I received my diploma (1993) and PhD (1998) in Electrical and Computer Engineering from the National Technical University of Athens, Greece.