Qiliang Liu, Ph.D. is now a Full professor/PhD Supervisor, in the Department of Geo-Informatics, Central South University, China. His research focuses on Spatio-temporal data mining. He has published over 20 SCI/SSCI indexed journal articles as first author or corresponding author in some top journals of GIS and spatial analysis, e.g. International Journal of Geographical Information Science, Geographical Analysis, Computers, Environment and Urban Systems, etc. He has led several research projects supported by National Natural Science Foundation of China and Ministry of Science and Technology of China. He also has served as the reviewer of several journals, e.g. International Journal of Geographical Information Science、Cartographic and Geographical Information Science、Computers&Geosciences、Transactions in GIS, etc.