Dr. Daniel A. Griffith is an Ashbel Smith Professor Emeritus of Geospatial Information Sciences atthe University of Texas at Dallas, United States; a past affiliated Professor in the College of PublicHealth at the University of South Florida, United States; and an Adjunct Professor in the Departmentof Resource Economics and Environmental Sociology at the University of Alberta, Canada. Hespecializes in spatial statistics, quantitative-urban-economic geography, and urban public health.Yongwan Chun is an Associate Professor of Geospatial Information Sciences at the University of Texas at Dallas. His research interests lie in spatial statistics and GIS, focusing on urban issues, including population movement, environment, health, and crime. His research has been supported by the US National Science Foundation, and the US National Institutes of Health, among others. He has over 50 publications, including books, journal articles, book chapters, and conference proceedings.Today, Dr. Li's research is focused on statistics and machine learning. He has published >75 peer reviewed research papers with >1,300 citations of his work.