Takashi Okumura is a senior fellow in the Center for Public Health Informatics at National Institute of Public Health, Japan. He completed his Ph.D. at Department of Computer Science, University of Pittsburgh in 2007, and also obtained his M.D. at Asahikawa Medical College, Japan, in the very same year. After finishing the M.D., Ph.D. program, he went through internship in Hokkaido from 2007 through 2009, and joined the institute. He started his research career in operating systems area, and worked on network I/O scheduling for his dissertation. Then, after joining the institute, he has been engaged in research and education on public health informatics, crisis management of public health, and clinical decision support systems, as a physician scientist in computer science. He is also a visiting professor at National Institute of Informatics, Japan, and a member of IEEE and ACM, looking for collaborators in AI and related field at City University of Hong Kong.