Hyoseok Yoon is a senior researcher at Contents Convergence Research Center, Korea Electronics Technology Institute (KETI). He received Ph.D. and M.S. from the Gwangju Institute of Science and Technology (GIST), Ubiquitous Virtual Reality Lab (UVR Lab.) under the supervision of Prof. Woontack Woo in 2012 and 2007 respectively. He received his B.S. in computer science from Soongsil University in 2005. Prior to joining KETI, he was a research associate at KAIST Culture Technology Research Institute and was a researcher at Culture Technology Institute (GIST CTI) from 2012 to 2013. He was an intern researcher for Dr. Yu Zheng of Web Search & Mining Group in Microsoft Research Asia in 2009. He was actively involved in a student-organized conference, International Symposium on Ubiquitous Virtual Reality (ISUVR) from 2006 to 2011 serving various organizing committee roles. His research interests include ubiquitous computing, pervasive contextual intelligence, augmented reality, and HCI.