1. Graduate School of Information Science and Technology, Hokkaido University, Kita 14, Nishi
9, Kita-ku, Sapporo, Hokkaido 060-0814, Japan
2. Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University,
Kita 21, Nishi 10, Kita-ku, Sapporo, Hokkaido 001-0021, Japan
3. Faculty of Information Science and Technology, Hokkaido University, Kita 14, Nishi 9, Kita-ku, Sapporo, Hokkaido 060-0814, Japan