Dr. Xianfeng Li is currently a postdoctoral fellow in Geotechnical Engineering Laboratory, the University of Tokyo. He has a B.S. degree in geotechnical engineering from China University of Geosciences, Wuhan, an M.S. degree in geotechnical engineering from Tongji University, Shanghai, and a Ph.D. degree in geotechnical engineering from the University of Tokyo, Tokyo. His research interests include smart geotechnical engineering, acoustic emission, image analysis, soil behavior, and pile foundation.