Prof. Liang Wu received the master’s degree from the Faculty of Information Engineering, China University of Geosciences, Wuhan, China, in 2001, and the Ph.D. degree in cartography and geographic information engineering from the China University of Geosciences in 2005. He is currently a Professor at the School of Computer Science, China University of Geosciences. His research interests include spatial representation, spatial analysis and query, spatial cognition, and spatial reasoning.