Since completing his PhD at Carnegie Mellon University, he has been a research associate in Computer Science at the University of Tokyo, a research faculty member of the Computer Science department at the University of Southern California, a project leader at the USC Institute for Creative Technologies, and a co-founder of KITT.AI, a natural language processing start-up. His research interests are in computational linguistics and data-driven natural language processing, including the design of algorithms and learning approaches for linguistic analysis and language technology applications.