Received his PhD in Artificial Intelligence from the Aristotle University of Thessaloniki in 2011. He also holds a BSc in Applied Mathematics from the same University (2003) and an MSc (Dist) in Computer Science from the University of Essex, UK (2004). He participated in several national and international research projects and published a number of international journal and conference proceedings papers. He currently works as a Senior Researcher at the Information Technologies Institute (ITI) of the Center for Research and Technology, Hellas (CERTH). His research interests include Knowledge Representation and Reasoning, Semantic Technologies and Rule-based Systems.