1. Graduate School of Information Science and Electrical Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan, --- Select a Country ---
2. Data Science Laboratories, NEC Corporation, 1753 Shimonumabe, Nakahara-Ku, Kawasaki, Kanagawa 211-8666, Japan, --- Select a Country ---