Yoshihide Sekimoto Professor in the Center for Spatial Information Science, University of Tokyo. Received Ph. D. in civil engineering from The University of Tokyo in 2002.Researcher in National Institute for Land, Infrastructure and Management, MLIT from 2002 to 2007. Project Lecturer in the Center for Spatial Information Science, University of Tokyo from 2007 to 2010.Project Associate Professor in the Center for Spatial Information Science, University of Tokyo from 2010 to 2013.Associate Professor in the Institute of Industrial Science, University of Tokyo from 2013 to 2020.

Professor in the Center for Spatial Information Science, University of Tokyo from 2020.Member of ACM, IEEE, Transportation Research, GIS Association of Japan, Japan Society of Civil Engineers and Japan Society of Traffic Engineers. Laboratory is "Human Centered Urban Informatics" and research interests include large scale data processing of moving objects and infrastructure data management. Yasuhiro Kawahara Associate Professor in the School of Graduate Studies of Arts and Sciences at the Open University of Japan. Majored in Environmental Information and Microsystems at Graduate School of Frontier Sciences in the University of Tokyo, and received Ph.D. in 2005. Project Assistant Professor at the University of Tokyo from 2006 to 2010, Lecturer at Kobe University in 2010, Visiting Associate Professor at Tokyo University of Science from 2011 to 2013, Associate Professor at the Open University of Japan since 2011.

Visiting researcher at Jean Monnet University from 2019. Member of executive board of Human Communication Group in IEICE (The Institute of Electronics, Information and Communication Engineers in Japan). Papers published in Studies in Mobile Computing and Environmental Cognitive Science. Research concern is to develop methods of monitoring human cognition and behavior and evaluate them under particular environmental stimulus in daily life.