About the Authors

Lei Zhu

Affiliation Department of Computer Science and Technology, Xi’an Jiaotong University, Xi’an, China

Qinbao Song

qbsong@mail.xjtu.edu.cn

Affiliation Department of Computer Science and Technology, Xi’an Jiaotong University, Xi’an, China

Yuchen Guo

Affiliation Department of Computer Science and Technology, Xi’an Jiaotong University, Xi’an, China

Lei Du

Affiliation Department of Computer Science and Technology, Xi’an Jiaotong University, Xi’an, China

Xiaoyan Zhu

Affiliation Department of Computer Science and Technology, Xi’an Jiaotong University, Xi’an, China

Guangtao Wang

Affiliation Department of Computer Science and Technology, Xi’an Jiaotong University, Xi’an, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: LZ QS. Performed the experiments: LZ YG. Analyzed the data: LD XZ GW. Contributed reagents/materials/analysis tools: YG LD. Wrote the paper: LZ QS GW.