Junjun Yin is an Assistant Research Professor at the Social Science Research Institute and an ICDS Associate at the Institute for Computational and Data Sciences, the Pennsylvania State University. Before joining Penn State, he was a postdoctoral research fellow at the CyberGIS Center for Advanced Digital and Spatial Studies at the National Center for Supercomputing Applications, the University of Illinois at Urbana-Champaign. He obtained his Ph.D. degree in Spatial Information Science from Dublin Institute of Technology, Ireland, which is a field in conjunction with Computer Science and Geographic Information Science (GIScience). His research interests center on GIScience with a focus on understanding human dynamics in the urban environment. His main research agenda employs computational geography approaches and geospatial Big Data to model human-urban environment interactions and their applications about urban environmental sustainability, resilience, and mobility.