Shigeo Shioda received the B.S. degree in physics from Waseda University, in 1986, and the M.S. degree in physics and the Ph.D. degree in teletraffic engineering from The University of Tokyo, Japan, in 1988 and 1998, respectively. In 1988, he joined Nippon Telegraph and Telephone Corporation, where he was engaged in research on traffic measurements and controls for ATM-based networks. He moved to Chiba University, Japan, in 2001, where he is currently a Professor with the Department of Applied and Cognitive Informatics, Graduate School of Engineering. His current research interests include wireless sensor networks, wireless LANs, peer-to-peer systems, and online social networks.