Kaori Fujinami received his B.S. and M.S. in electrical engineering and his Ph.D. in computer science from Waseda University, Japan, in 1993, 1995, and 2005, respectively. From 2005 to 2006, he was a visiting lecturer at Waseda University. From 2007 to 2017, he was an associate professor at the Department of Computer and Information Sciences at TUAT. In 2018, he became a professor at TUAT. His research interests are machine learning, activity recognition, human–computer interaction, and ubiquitous computing.