About the Authors

Takahiro Ezaki

Affiliations Research Center for Advanced Science and Technology, The University of Tokyo, Meguro-ku, Tokyo, Japan, Japan Society for the Promotion of Science, Kojimachi, Chiyoda-ku, Tokyo, Japan, National Institute of Informatics, Hitotsubashi, Chiyoda-ku, Tokyo, Japan, JST, ERATO, Kawarabayashi Large Graph Project, c/o Global Research Center for Big Data Mathematics, NII, Chiyoda-ku, Tokyo, Japan

Yutaka Horita

Affiliations National Institute of Informatics, Hitotsubashi, Chiyoda-ku, Tokyo, Japan, JST, ERATO, Kawarabayashi Large Graph Project, c/o Global Research Center for Big Data Mathematics, NII, Chiyoda-ku, Tokyo, Japan

Masanori Takezawa

Affiliations Department of Behavioral Science, Hokkaido University, Kita-ku, Sapporo, Japan, Center for Experimental Research in Social Sciences, Hokkaido University, Kita-ku, Sapporo, Japan

Naoki Masuda

naoki.masuda@bristol.ac.uk

Affiliation Department of Engineering Mathematics, University of Bristol, Clifton, Bristol, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: NM. Performed the experiments: TE. Analyzed the data: TE. Wrote the paper: TE YH MT NM.