I am an associate professor of learning analytics at the University of North Texas (UNT). I got my B.S. and M.S. in Earth Science (focusing on astronomy) from the Seoul National University (SNU), and got my Ph.D. in Educational Computing from the University of Illinois at Urbana-Champaign (UIUC).

After getting my Ph.D., I worked at the National Center for Supercomputing Applications (NCSA) as a senior research programmer, and at the Massachusetts of Institute of Technology (MIT) as a research associate. While working at MIT, I participated in various educational data mining research projects that investigated educational benefits of a Web-based physics tutoring environment called MasteringPhysics . Before joining UNT in Fall 2019, I was a faculty member at the University of Kansas (KU) for 12 years.

I am interested in applying innovative technologies to Science, Technology, Engineering and Mathematics (STEM) learning. I developed prototypes of Web-based and mobile physics learning environments that can improve student learning of Newtonian physics concepts. These days, I am focusing on learning analytics and educational data mining techniques that can accurately estimate the ability of students learning in computer-based learning environments such as Massive Open Online Courses (MOOCs). I am also interested in using innovative learning technologies to help students learn Computational Thinking skills.