Dr. Jiehan Zhou is a Post-Doctoral fellow in Middleware Systems Research Group, ECE Department at University of Toronto, Canada and a joint senior research scientist and project manager at MediaTeam and Intelligent System Group of Computer Science and Engineering Lab at University of Oulu, Finland. He obtained his PhD in Manufacturing and Automation from Huazhong University of Science and Technology, Wuhan, China in 2001. He worked in VTT/Oulu Finland (Technical Research Center of Finland) and INRIA/Sophia-Antipolis France (French National Institute for Research in Computer Science and Control) for an 18-months ERCIM (European Research Consortium for Informatics and Mathematics) fellowship (1/2003-6/2004). He did a two years postdoctoral fellowship in CIMS Lab, Department of Automation at Tsinghua University, Beijing, China (1/2001-12/2002). His current research interests include Pervasive Service Computing, Cloud Computing,Community Coordinated Multimedia, and Publish/Subscribe Middleware.