About the Authors

Wei Zeng

Affiliations Web Sciences Center, School of Computer Science and Engineering, University of Electronic Science and Technology of China, Chengdu, China, State Key Laboratory of Networking and Switching Technology, Beijing, P.R. China, Department of Physics, University of Fribourg, Fribourg, Switzerland

An Zeng

an.zeng@unifr.ch (AZ); shang.mingsheng@gmail.com (MSS)

Affiliations Department of Physics, University of Fribourg, Fribourg, Switzerland, School of Systems Science, Beijing Normal University, Beijing, P.R. China

Hao Liu

Affiliation Department of Physics, University of Fribourg, Fribourg, Switzerland

Ming-Sheng Shang

an.zeng@unifr.ch (AZ); shang.mingsheng@gmail.com (MSS)

Affiliations Web Sciences Center, School of Computer Science and Engineering, University of Electronic Science and Technology of China, Chengdu, China, State Key Laboratory of Networking and Switching Technology, Beijing, P.R. China

Yi-Cheng Zhang

Affiliations Web Sciences Center, School of Computer Science and Engineering, University of Electronic Science and Technology of China, Chengdu, China, Department of Physics, University of Fribourg, Fribourg, Switzerland, Institute of Information Economy, Hangzhou Normal University, Hangzhou, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: AZ MSS YCZ. Performed the experiments: WZ HL. Analyzed the data: WZ AZ. Wrote the paper: WZ AZ MSS YCZ.