About the Authors

Jin-Hee Cho

Affiliation Computational and Information Sciences Directorate, U.S. Army Research Laboratory, Adelphi, MD 20783, United States of America

Jianxi Gao


Affiliation Center for Complex Network Research and Department of Physics, Northeastern University, Boston, Massachusetts 02115, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JHC JXG. Performed the experiments: JHC JXG. Analyzed the data: JXG. Contributed reagents/materials/analysis tools: JHC. Wrote the paper: JHC JXG. Addressed referees’ comments: JHC JXG.