Overlay Maps of Science Ismael Rafols 1,2, Alan Porter 2 and Loet Leydesdorff 3 1 SPRU, University of Sussex, Brighton 2 School of Public Policy, Georgia Institute Technology, Atlanta 3 Amsterdam School of Comm. Res. (ASCoR), Univ. Amsterdam
Rafols, Porter and Leydesdorff (2010) Cognitive Sci. Agri Sci Biomed Sci Chemistry Physics Engineering Env Sci & Tech Matls Sci Infectious Diseases Psychology Social Studies Clinical Med Computer Sci. Business & MGT GeosciencesEcol Sci Econ. Polit. & Geography Health & Social Issues Global Map of Science factors 222 subject categories
Rafols, Porter and Leydesdorff (2010) Cognitive Sci. Agri Sci Biomed Sci Chemistry Physics Engineering Env Sci & Tech Matls Sci Infectious Diseases Psychology Social Studies Clinical Med Computer Sci. Business & MGT GeosciencesEcol Sci Econ. Polit. & Geography Health & Social Issues
Rafols, Porter and Leydesdorff (2010) Physical Sciences Social Sciences Biomedical Sciences Environmental S&T Global Map of Science disciplinary areas 222 subject categories
Rafols, Porter and Leydesdorff (2010) Physical Sciences Social Sciences Biomedical Sciences Environmental S&T
References Global Maps of Science Leydesdorff, L. and Rafols, I. (2009) A Global Map of Science Based on the ISI Subject Categories. Journal of the American Society for Information Science and Technology, 60(2), Rafols, I. and Leydesdorff, L. (2009). Content-based and Algorithmic Classifications of Journals: Perspectives on the Dynamics of Scientific Communication and Indexer Effects. Journal of the American Society for Information Science and Technology, 60(9), Overlay Rafols, I., Porter, A. L. and Leydesdorff, L. (2010) Overlay science maps: a new tool for research policy and library management. Journal of the American Society for Information Science and Technology 61(9), 871–1887. Rafols, I. and Meyer, M. (2010) Diversity and Network Coherence as indicators of interdisciplinarity: case studies in bionanoscience. Scientometrics, 82(2),