About the Authors

Takashi Naka

Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Software, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing

naka@is.kyusan-u.ac.jp

Affiliation Faculty of Science and Engineering, Kyushu Sangyo University, Fukuoka, Japan

Competing Interests

The authors have declared that no competing interests exist.