About the Authors

Ryusuke Iizuka

Roles Conceptualization, Formal analysis, Methodology, Project administration, Validation, Visualization, Writing – original draft, Writing – review & editing

iizuka@torilab.net

Affiliation The University of Tokyo, Tokyo, Japan

Fujio Toriumi

Roles Conceptualization, Data curation, Methodology, Project administration, Supervision

Affiliation The University of Tokyo, Tokyo, Japan

Mao Nishiguchi

Roles Conceptualization, Methodology, Supervision, Writing – review & editing

Affiliation The University of Tokyo, Tokyo, Japan

Masanori Takano

Roles Methodology, Writing – review & editing

Affiliation CyberAgent, Inc., Tokyo, Japan

Mitsuo Yoshida

Roles Resources, Writing – review & editing

Affiliation Toyohashi University of Technology, Toyohashi, Aichi, Japan

Competing Interests

Masanori Takano is an employee of CyberAgent, Inc. There are no patents, products in development or marketed products associated with this research to declare. This does not alter our adherence to PLOS ONE policies on sharing data and materials.