1 School of Information Management, Wuhan University, Wuhan, China.
2 Centre for R&D Monitoring (ECOOM) and Department of MSI, KU Leuven, Leuven, Belgium.
3 Search Technology, Inc., Norcross, GA, USA.
4 Program in Science, Technology & Innovation Policy (STIP), Georgia Institute of Technology, Atlanta, GA, USA.
5 Centre for Artificial Intelligence, Faculty of Engineering and Information Technology, University of Technology Sydney, Sydney, New South Wales, Australia.
6 Department of Food, Bioprocessing and Nutrition Sciences, North Carolina State University, Raleigh, NC, USA. rbarran@ncsu.edu.