About the Authors

Huanyu Xu

Affiliation School of Computer Science and Technology, Nanjing University of Science and Technology, Nanjing, Jiangsu, China

Quansen Sun

qssun@126.com

Affiliation School of Computer Science and Technology, Nanjing University of Science and Technology, Nanjing, Jiangsu, China

Nan Luo

Affiliation School of Computer Science and Technology, Nanjing University of Science and Technology, Nanjing, Jiangsu, China

Guo Cao

Affiliation School of Computer Science and Technology, Nanjing University of Science and Technology, Nanjing, Jiangsu, China

Deshen Xia

Affiliation School of Computer Science and Technology, Nanjing University of Science and Technology, Nanjing, Jiangsu, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: HX QS. Performed the experiments: HX GC. Analyzed the data: HX QS DX. Wrote the paper: HX NL GC.