About the Authors

Tzong-Yi Lee

Contributed equally to this work with: Tzong-Yi Lee, Shu-An Chen

francis@saturn.yzu.edu.tw (TYL); yien@csie.org (YYO)

Affiliation Department of Computer Science and Engineering, Yuan Ze University, Chung-Li, Taiwan

Shu-An Chen

Contributed equally to this work with: Tzong-Yi Lee, Shu-An Chen

Affiliation Department of Computer Science and Engineering, Yuan Ze University, Chung-Li, Taiwan

Hsin-Yi Hung

Affiliation Department of Computer Science and Engineering, Yuan Ze University, Chung-Li, Taiwan

Yu-Yen Ou

francis@saturn.yzu.edu.tw (TYL); yien@csie.org (YYO)

Affiliation Department of Computer Science and Engineering, Yuan Ze University, Chung-Li, Taiwan

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: TYL SAC HYH YYO. Performed the experiments: TYL SAC HYH YYO. Analyzed the data: TYL SAC HYH YYO. Contributed reagents/materials/analysis tools: TYL SAC HYH YYO. Wrote the paper: TYL SAC YYO.