Prof. Jongtae Lim is now a assistant professor at the Department of the Software Convergence, Gyeongkuk National University, Republic of Korea. He received his B.Sc., M.Sc., and Ph.D. in Information and Communication Engineering from Chungbuk National University, Republic of Korea, in 2009, 2011, and 2015, respectively. His research interests include moving object databases, spatial databases, location-based services, P2P networks, and big data.