Kai is a post-doctoral researcher at CUSP with a focus on Spatio-Temporal Data Mining, Urban Computing and Urban Human Mobility. He obtained both his Ph.D. (2015) and M.Sc. (2011) in Computer Science from University of Helsinki, Finland and B.Sc. (2009) in Computer Science from Shandong University, China. He has been serving as the TPCs for IEEE conferences such as ICC and ICDE workshop. He was also invited to be the reviewer for several journals including IEEE Transactions on Big Data, IEEE Transactions on Mobile Computing, etc. Additional information and publications can be viewed at https://sites.google.com/site/zhaokaics/home.