About the Authors

Wangchao Lou

Affiliation School of Computer and Information Engineering, Zhejiang Gongshang University, Hangzhou, PR China

Xiaoqing Wang

Affiliation School of Computer and Information Engineering, Zhejiang Gongshang University, Hangzhou, PR China

Fan Chen

Affiliation School of Computer and Information Engineering, Zhejiang Gongshang University, Hangzhou, PR China

Yixiao Chen

Affiliation School of Computer and Information Engineering, Zhejiang Gongshang University, Hangzhou, PR China

Bo Jiang

Affiliation School of Computer and Information Engineering, Zhejiang Gongshang University, Hangzhou, PR China

Hua Zhang

zerozhua@126.com

Affiliation School of Computer and Information Engineering, Zhejiang Gongshang University, Hangzhou, PR China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: WL XW BJ HZ. Performed the experiments: WL. Analyzed the data: WL XW FC. Contributed reagents/materials/analysis tools: YC HZ. Wrote the paper: XW HZ.