中文摘要：

Junhua Lu is currently working toward the PhD degree with the State Key Laboratory of Computer Aided Design and Computer Graphics, Zhejiang University, China. His research interests include visualization and visual analytics. E-mail： chenwei@cad.zju.edu.cn,Wei Chen is currently a professor at the State Key Laboratory of Computer Aided Design and Computer Graphics, Zhejiang University, China. He has published more than 60 papers in international journals and conferences. Prof. Chen served as a steer- ing committee member of the IEEE Pacific Visualization, the conference chair of the IEEE Pacific Visualization 2015, and a paper cochair of the IEEE Pacific Visualization 2014. He is an awardee of the NSFC Excellent Young Scholars Program in 2014. Yuxin Ma is currently working toward the PhD degree with the State Key Laboratory of Computer Aided Design and Computer Graphics, Zhejiang University, China. His research interests include visual analytics and visual data mining. Junming Ke is an undergraduate student of Zhejiang University of Technology, China. He is undergoing an internship in the State Key Laboratory of Computer Aided Design and Computer Graphics, Zhejiang Univer- sity, China. Zongzhuang Li is an undergraduate student of Zhejiang University （ZJU）, China. He is working on his graduation proposal in the State Key Laboratory of Computer Aided Design and Computer Graphics, ZJU. Fan Zhang is currently an associate profes- sor at the Zhejiang University of Technol- ogy, China. His research interests include visual analytics and parallel computing. Ross Maciejewski is an assistant profes- sor in the School of Computing, Informat- ics＆ Decision Systems Engineering, Ari- zona State University, USA. His primary research interests are in the areas of geo- graphical visualization and visual analytics focusing on public health, dietary analy- sis, social media, and criminal incident re-ports. He has served on the organizing committee for the IEEE Con- ference on Visual Analytics Science and Technology ?