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JOURNAL OF INFORMETRICS;
A unified approach to mapping and clustering of bibliometric networks
Waltman L, van Eck NJ, Noyons ECM
In the analysis of bibliometric networks, researchers often use mapping and clustering techniques in a combined fashion. Typically, however, mapping and clustering techniques that are used together rely on very different ideas and assumptions. We propose a unified approach to mapping and clustering of bibliometric networks. We show that the VOS mapping technique and a weighted and parameterized variant of modularity-based clustering can both be derived from the same underlying principle. We illustrate our proposed approach by producing a combined mapping and clustering of the most frequently cited publications that appeared in the field of information science in the period 1999-2008. (C) 2010 Elsevier Ltd. All rights reserved.
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Journal of Informetrics
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MSc L. (Ludo) Waltman
Centre for Science and Technology Studies
Researcher. MSc in Economics & Informatics from Erasmus University Rotterdam (2005). Currently working on a PhD thesis in economics at Erasmus University Rotterdam. Working at CWTS from June 2009. Involved in various science mapping projects. Main research interests are science mapping and ...
Dr. N.J. (Nees Jan) van Eck
Researcher. MSc in Economics & Informatics from Erasmus University Rotterdam (2005). Currently working on a PhD thesis on science mapping at Erasmus University Rotterdam. Working at CWTS from November 2008. Involved in various science mapping projects, and working on the development of science ...
Dr. E.C.M. (Ed) Noijons
Senior researcher and research fellow and assistant director at CWTS. Coordinator of mapping studies.Education: Drs. Dutch Language and Literature (Universiteit Utrecht, 1989)PhD Quantitative studies of science (universiteit Leiden, 1999)