About the Authors

Jongsoo Keum

Affiliation School of Electrical Engineering and Computer Science, Gwangju Institute of Science and Technology, 123 Cheomdangwgi-ro, Buk-gu, Gwangju, Republic of Korea

Hojung Nam

hjnam@gist.ac.kr

Affiliation School of Electrical Engineering and Computer Science, Gwangju Institute of Science and Technology, 123 Cheomdangwgi-ro, Buk-gu, Gwangju, Republic of Korea

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

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