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Overlay Maps of Science Ismael Rafols 1,2, Alan Porter 2 and Loet Leydesdorff 3 2 SPRU, University of Sussex, Brighton 2 School of Public Policy, Georgia.

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Presentation on theme: "Overlay Maps of Science Ismael Rafols 1,2, Alan Porter 2 and Loet Leydesdorff 3 2 SPRU, University of Sussex, Brighton 2 School of Public Policy, Georgia."— Presentation transcript:

1 Overlay Maps of Science Ismael Rafols 1,2, Alan Porter 2 and Loet Leydesdorff 3 2 SPRU, University of Sussex, Brighton 2 School of Public Policy, Georgia Institute Technology, Atlanta 3 Amsterdam School of Comm. Res. (ASCoR), Univ. Amsterdam

2 Global Map of Science, 2006 175 SCI Subject Categories Leydesdorff and Rafols (2009) Neurosciences Agriculture Biomed Sci Chemistry Physics Engineering Environ Sci Matls Sci Infectious Diseases Clinical Med Computer Sci. Geosciences Ecology General Med

3 Global Map of Science, 2006 175 SCI Subject Categories Neurosciences Agriculture Biomed Sci Chemistry Physics Engineering Environ Sci Matls Sci Infectious Diseases Clinical Med Computer Sci. Geosciences Ecology General Med

4 Rafols, Porter and Leydesdorff (2009) 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 Geosciences Ecol Sci Econ. Polit. & Geography Health & Social Issues Global Map of Science, 2007 221 SCI-SSCI Subject Categories

5 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 Geosciences Ecol Sci Econ. Polit. & Geography Health & Social Issues Global Map of Science, SCI-SSCI 2007

6 References Maps 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), 348-362. 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. DOI: 10.1002/asi.21086. Overlay Rafols, I., Porter, A. L. and Leydesdorff, L. (in preparation) Overlay science maps: a new tool for research evaluation. Rafols, I. and Meyer, M. (2009) Diversity and Network Coherence as indicators of interdisciplinarity: case studies in bionanoscience. Scientometrics, DOI 10.1007/s11192-009-0041-y.

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