About the Authors

Haewon Nam

Affiliation Department of Liberal Arts and Science, Hongik University, Sejong, South Korea

Jongduk Baek

jongdukbaek@yonsei.ac.kr

¤ Current address: School of Integrated Technology and Yonsei Institute of Convergence Technology, Yonsei University, 162-1, Songdo-dong, Yeonsu-gu, Incheon, South Korea

Affiliations Yonsei Institute of Convergence Technology, Yonsei University, Incheon, South Korea, School of Integrated Technology, Yonsei University, Incheon, South Korea

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceptualization: JB HN. Data curation: JB HN. Formal analysis: JB HN. Funding acquisition: JB HN. Investigation: JB HN. Methodology: JB HN. Resources: JB. Software: HN. Supervision: JB. Validation: HN. Visualization: HN. Writing – original draft: JB HN. Writing – review & editing: JB.