Iraklis VarlamisIraklis Varlamis is a lecturer at the Department of Informatics and Telematics of Harokopio University of Athens. He received his Ph.D. in Computer Science from Athens University of Economics and Business, Greece. From 1999-2004, he was member of theDB-NET (http://www.db-net.aueb.gr/) research group (Head: Associate Prof. Vazirgiannis) and since 2005 he is collaborating with the WIM (http://wim.aueb.gr) research group (Head: Associate Prof. Vassalos). His research interests vary from data-mining and the use of semantics in web mining to virtual communities and their applications in education and healthcare. He has published several articles in international journals and conferences, concerning web document clustering, the use of semantics in web link analysis and web usage mining, word sense disambiguation using thesauruses, virtual communities in healthcare etc. He has lectured databases and data mining, information systems and software technology as a lecturer and visiting lecturer at Harokopio University of Athens, Athens University of Economics and Business, the University of Peloponnese, the University of Central Greece, and the University of Aegean. More information is available at http://www.dit.hua.gr/~varlamis . Read More Read Less