About the Authors

Leung-Yau Lo

lylo@cse.cuhk.edu.hk

Affiliation Department of Computer Science and Engineering, The Chinese University of Hong Kong, Hong Kong, Hong Kong

Man-Leung Wong

Affiliation Department of Computing and Decision Sciences, Lingnan University, Tuen Mun, Hong Kong

Kin-Hong Lee

Affiliation Department of Computer Science and Engineering, The Chinese University of Hong Kong, Hong Kong, Hong Kong

Kwong-Sak Leung

Affiliation Department of Computer Science and Engineering, The Chinese University of Hong Kong, Hong Kong, Hong Kong

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: LYL. Performed the experiments: LYL. Analyzed the data: LYL MLW KHL KSL. Contributed reagents/materials/analysis tools: LYL. Wrote the paper: LYL MLW KHL KSL. Implementation of the algorithm: LYL.