About the Authors

Shuo Hong Wang

Affiliation School of Computer Science, Shanghai Key Laboratory of Intelligent Information Processing, Fudan University, Shanghai, P. R. China

Xi En Cheng

Affiliations School of Computer Science, Shanghai Key Laboratory of Intelligent Information Processing, Fudan University, Shanghai, P. R. China, Jingdezhen Ceramic Institute, Jindezhen, Jiangxi, P.R. China

Zhi-Ming Qian

Affiliations School of Computer Science, Shanghai Key Laboratory of Intelligent Information Processing, Fudan University, Shanghai, P. R. China, Chuxiong Normal University, Chuxiong, Yunnan, P. R. China

Ye Liu

Affiliation College of Automation, Nanjing University of Posts and Telecommunications, Nanjing, Jiangsu, P. R. China

Yan Qiu Chen

chenyq@fudan.edu.cn

Affiliation School of Computer Science, Shanghai Key Laboratory of Intelligent Information Processing, Fudan University, Shanghai, P. R. China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SHW YQC. Performed the experiments: SHW ZMQ. Analyzed the data: SHW. Contributed reagents/materials/analysis tools: SHW YQC. Wrote the paper: SHW XEC YL YQC. Developed the software used in the experiments: SHW XEC.