About the Authors

Yan Wang

Affiliations College of Electronics and Information Engineering, Sichuan University, Chengdu, Sichuan, China, Department of Computer Science, Chengdu University of Information Technology, Chengdu, Sichuan, China

Xi Wu

wuxiscu@gmail.com (XW); jlzhou@scu.edu.cn (JZ)

Affiliations Department of Computer Science, Chengdu University of Information Technology, Chengdu, Sichuan, China, College of Computer Science, Sichuan University, Chengdu, Sichuan, China

Wenzao Li

Affiliations College of Electronics and Information Engineering, Sichuan University, Chengdu, Sichuan, China, Department of Computer Science, Chengdu University of Information Technology, Chengdu, Sichuan, China

Yi Zhang

Affiliation College of Computer Science, Sichuan University, Chengdu, Sichuan, China

Zhi Li

Affiliation College of Electronics and Information Engineering, Sichuan University, Chengdu, Sichuan, China

Jiliu Zhou

wuxiscu@gmail.com (XW); jlzhou@scu.edu.cn (JZ)

Affiliation College of Computer Science, Sichuan University, Chengdu, Sichuan, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: YW XW. Performed the experiments: YW WL YZ. Analyzed the data: YW XW ZL. Contributed reagents/materials/analysis tools: JZ. Wrote the paper: YW XW YZ.