About the Authors

Masato S. Abe

masatoabee@gmail.com (MSA)

Current address: JST, ERATO, Kawarabayashi Large Graph Project and National Institute of Informatics, Tokyo, Japan

Affiliation Department of General Systems Studies, Graduate School of Arts and Sciences, The University of Tokyo, Tokyo, Japan

Masakazu Shimada

Affiliation Department of General Systems Studies, Graduate School of Arts and Sciences, The University of Tokyo, Tokyo, Japan

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MSA MS. Performed the experiments: MSA. Analyzed the data: MSA. Contributed reagents/materials/analysis tools: MSA. Wrote the paper: MSA MS.