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Welcome to the homepage of
Ludo Waltman
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- May 14, 2012. The paper A mathematical analysis of the long-run behavior of genetic algorithms for social modeling by Ludo Waltman and Nees Jan van Eck has been published in volume 16, issue 6 of Soft Computing.
- March 27, 2012. The paper The Leiden Ranking 2011/2012: Data collection, indicators, and interpretation by Ludo Waltman, Clara Calero-Medina, Joost Kosten, Ed Noyons, Robbert Tijssen, Nees Jan van Eck, Thed van Leeuwen, Anthony van Raan, Martijn Visser, and Paul Wouters has been accepted for publication in the Journal of the American Society for Information Science and Technology.
- March 14, 2012. VOSviewer version 1.4.3 has been released and is available at www.vosviewer.com.
Older news is available here.
I am doing research in two different fields:
- Bibliometrics/Scientometrics. My research in this field focuses on two topics in particular:
- Bibliometric network analysis, in particular bibliometric mapping of science (see www.vosviewer.com).
- Bibliometric indicators of research performance.
- Economics. My economic research is concerned with the theoretical analysis of models of boundedly rational behavior. I have written a PhD thesis on this topic.
I am a member of the editorial boards of Journal of Informetrics and Scientometrics.
In most of my research I am working closely together with Nees Jan van Eck.
A list of my publications is available here.