About the Authors

Yuanchao Liu

lyc@insun.hit.edu.cn

Affiliation School of Computer Science and Technology, Harbin Institute of Technology, Harbin, China

Ming Liu

Affiliation School of Computer Science and Technology, Harbin Institute of Technology, Harbin, China

Xin Wang

Affiliation School of Computer Science and Technology, Harbin Institute of Technology, Harbin, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: YL. Performed the experiments: YL. Analyzed the data: YL ML XW. Contributed reagents/materials/analysis tools: YL. Wrote the paper: YL.