About the Authors

Ryohei Umetani

Roles Funding acquisition, Investigation, Project administration, Writing – original draft

umetani.ryohei.sd@alumni.tsukuba.ac.jp

Affiliation Graduate School of Science and Technology, Degree Programs in Systems and Information Engineering, University of Tsukuba, Tsukuba, Ibaraki, Japan

Hitoshi Yamamoto

Roles Funding acquisition, Project administration, Supervision, Writing – review & editing

Affiliation Faculty of Business Administration, Rissho University, Tokyo, Japan

Akira Goto

Roles Funding acquisition, Investigation, Software

Affiliation Meiji University School of Information and Communication, Tokyo, Japan

Isamu Okada

Roles Funding acquisition, Writing – review & editing

Affiliation Faculty of Business Administration, Soka University, Tokyo, Japan

Eizo Akiyama

Roles Funding acquisition, Supervision, Writing – review & editing

Affiliation Faculty of Engineering, Information and Systems, University of Tsukuba, Tsukuba, Ibaraki, Japan

Competing Interests

The authors have declared that no competing interests exist.