He had been an assistant professor at UNIST since July 2013. He was a Computer Scientist Postdoctoral Fellow of Computational Research Division at the Berkeley Lab. His research focuses on learning and inference with probabilistic graphical models, combining robot motion planning with AI planning, and spatio-temporal data analysis. He received his Ph.D. in Computer Science from University of Illinois at Urbana-Champaign (2012) and received B.S. degree in Computer Engineering from Seoul National University (2004).