U- and E-Service, Science and Technology : International Conference, UNESST 2011, Held as Part of the Future Generation Information Technology Conference, FGIT 2011, in Conjunction with GDC 2011, Jeju Island, Korea, December 8-10, 2011. Proceedings - Tai-hoon Kim, Hojjat Adeli, Jianhua Ma, Wai-chi Fang, Byeong-Ho Kang, Byungjoo Park, Frode Eika Sandnes, . Kun Chang Lee ((Communications in Computer and Information Science))