Yong-Yeol (YY) Ahn is an associate professor at Indiana University School of Informatics, Computing, and Engineering. He was a visiting professor at MIT during 2020-2021. Before joining Indiana University, he worked as a postdoctoral research associate at the Center for Complex Network Research at Northeastern University and as a visiting researcher at the Center for Cancer Systems Biology at Dana-Farber Cancer Institute after earning his Ph.D. in statistical Physics from KAIST in 2008. His research focuses on developing network science and machine learning methods, and applying them to complex social and biological systems. He is a recipient of several awards including the Microsoft Research Faculty Fellowship and LinkedIn Economic Graph Challenge.