Title: Towards better understanding spatio-temporal user behavior in urban area
	Speaker: Guodao Sun
	Bio: Guodao Sun is an assistant professor at College of Information Engineering, Zhejiang University of Technology, Hangzhou, China. His main research interest lies on urban visualization and visual analytics of social media, with publications in visualization journals and conferences.
	Abstract: Millions of users from different geolocations are consuming, producing, and disseminating huge volumes of highly diverse information, ranging from social media data in global level to residents traveling data in city level. We aim to employ the method of visual analysis to study the user behavior patterns in temporal, spatial and spatio-temporal dimension in urban area. We study and discuss different issues including user behavior data modeling, visualization design, development of interactive visual analysis system. The effectiveness and efficiency of the model, visualization as well as the visual analysis system are further evaluated with real world datasets such as taxi data, social media data.