Guest editorial

摘要

Markus Ketterl has studied Computer Science at the University of Applied Sciences Osnabruck, Germany. He currently is a PhD candidate in Computer Sciences at the University of Osnabruck where his research interests are adaptive multimedia systems, social navigation, multimedia analysis, applications for mobile devices and alternative distribution possibilities for media content. He has been working at the Department of Computer Science, University of Applied Sciences Osnabruck and at the Center for Information Management and Virtual Teaching (virtUOS) at the University of Osnabruck. In the beginning of 2008, Markus Ketterl worked as a visiting scholar at the Personalized Adaptive Web Systems Lab (PAWS) at the University of Pittsburgh. Since September 2011 he is working as Research Engineer at Fraunhofer IAIS. He also is a founding member of UC Berkeley's Opencast project where he is one of the hading developers and part of the Executive Advisory Board.