About the Authors

Emilio Ferrara

Contributed equally to this work with: Emilio Ferrara, Zeyao Yang

ferrarae@isi.edu

Affiliations School of Informatics and Computing, Indiana University, Bloomington, IN, United States of America, Information Sciences Institute, University of Southern California, Marina Del Rey, CA, United States of America

Zeyao Yang

Contributed equally to this work with: Emilio Ferrara, Zeyao Yang

Affiliation School of Informatics and Computing, Indiana University, Bloomington, IN, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: EF. Performed the experiments: EF ZY. Analyzed the data: EF ZY. Contributed reagents/materials/analysis tools: EF ZY. Wrote the paper: EF.