Dr. Charalampos Bratsas has extensive experience in the Semantic Web domain, with a focus on Biomedical Ontologies and Linked Open Data. During his PhD studies he worked on Knowledge Management and Semantic Representation of Medical Computational Problems. He has been involved in ten EU research projects. He is currently a faculty member of the Master's Program in Web Science in the Mathematical Department of Aristotle University of Thessaloniki. He leads the R&D efforts around Greek Linked Open Data, which is currently part of the overall global 2011 LOD cloud with the following datasets: Greek DBpedia, Hellenic Police, Hellenic Fire Brigade, and soon Diavgeia, and kallikratis. His main areas of interest are data mining and algorithms, the semantic web and social semantic web, internationalization of linked data (coordinator of Greek DBPedia), applications of artificial intelligence, neuroinformatics, and linked education.