Namgi Kim received his B.S. degree in Computer Engineering from Sogang University, Seoul, Korea, in 1997 and received his M.S. and Ph.D. degrees in Computer Engineering from the Korea Advanced Institute of Science and Technology, Daejeon Metropolitan City, in 2005. Until 2007, he was a Senior Researcher at the Samsung Electronics Telecommunication Research Institute. Since 2009, he has been a Professor at the Computer Engineering Department, Kyonggi University, Suwon. His research interests include computer network, anomaly detection, recommender system and multicast routing tree.