About the Authors

Seokbeom Kwon

Roles Conceptualization, Data curation, Formal analysis, Methodology, Software, Validation, Visualization, Writing – original draft, Writing – review & editing

skwon61@gatech.edu

Affiliation School of Public Policy, Georgia Institute of Technology, Atlanta, Georgia, United States of America

Gregg E. A. Solomon

Roles Formal analysis, Methodology, Project administration, Supervision, Visualization, Writing – original draft, Writing – review & editing

Affiliation Directorate for Education and Human Resources, National Science Foundation, Arlington, Virginia, United States of America

Jan Youtie

Roles Conceptualization, Data curation, Funding acquisition, Project administration, Supervision, Validation, Writing – original draft, Writing – review & editing

Affiliation Enterprise Innovation Institute, Georgia Institute of Technology, Atlanta, Georgia, United States of America

Alan L. Porter

Roles Data curation, Funding acquisition, Methodology, Project administration, Resources, Supervision, Writing – original draft, Writing – review & editing

Affiliations School of Public Policy, Georgia Institute of Technology, Atlanta, Georgia, United States of America, Search Technology Inc., Atlanta, Georgia, United States of America

Competing Interests

As clearly indicated, Dr. Solomon is a collaborator on this research. He expressly distanced himself from any project management or oversight role in the project. That relationship has been vetted by NSF. One of the authors, Alan Porter, is jointly affiliated with Search Technology as Director of R&D, and also as Co-Director of the Program in Science, Technology & Innovation Policy at Georgia Tech. His salary for work on this project was paid by Search, from NSF funding. Search Technology, Inc. did not have any additional role in the study design, data collection and analysis, decision to publish, or preparation of the manuscript. The specific roles of the authors are articulated in the ‘author contributions’ section. Search Technology develops and markets VantagePoint software [www.theVantagePoint.com] that was used to process the abstract records that constituted the data for the study. We do not perceive any competing interests relating to the study analyses or findings. Georgia Tech and Search Technology affiliations do not alter our adherence to PLOS ONE policies on sharing data and materials. The abstract records themselves cannot be shared as they were obtained using Georgia Tech’s license from Clarivate Analytics to use Web of Science data for research purposes and not to redistribute those data. However, we provide specific details on how we searched for those data in Web of Science so that another person could recreate the dataset if they wished and had Web of Science access. We provide the search strategy in the Appendix section of the manuscript. There are not any patents, products in development or marketed products to declare. This does not alter our adherence to all the PLOS ONE policies on sharing data and materials.