1. Mizuho Information and Research Institute, Inc., 2-3 Kanda Nishiki-cho, Chiyoda-ku, Tokyo 101-8443, Japan, Japan Science and Technology Agency, CREST, Advancesoft and Institute of Industrial Science, Center for Collaborative Research, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8904, Japan, Graduate School of Science and Technology, Kobe University, 1-1, Rokkodai, Nada, Kobe 657-8501, Japan, National Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tsukuba, Ibaraki...