6.3k citations · 8.6k across the 20 of their papers we have counts for
5 papers · 1 filter
A unified approach to mapping and clustering of bibliometric networks
Ludo Waltman, Nees Jan van Eck, Ed C. M. Noyons
In the analysis of bibliometric networks, researchers often use mapping and clustering techniques in a combined fashion. Typically, however, mapping and clustering techniques that…
Towards a new crown indicator: An empirical analysis
Ludo Waltman, Nees Jan van Eck, Thed N. van Leeuwen +2
We present an empirical comparison between two normalization mechanisms for citation-based indicators of research performance. These mechanisms aim to normalize citation counts for…
The relation between Eigenfactor, audience factor, and influence weight
Ludo Waltman, Nees Jan van Eck
We present a theoretical and empirical analysis of a number of bibliometric indicators of journal performance. We focus on three indicators in particular, namely the Eigenfactor in…
Rivals for the crown: Reply to Opthof and Leydesdorff
Anthony F. J. van Raan, Thed N. van Leeuwen, Martijn S. Visser +2
We reply to the criticism of Opthof and Leydesdorff [arXiv:1002.2769] on the way in which our institute applies journal and field normalizations to citation counts. We point out wh…
Towards a new crown indicator: Some theoretical considerations
Ludo Waltman, Nees Jan van Eck, Thed N. van Leeuwen +2
The crown indicator is a well-known bibliometric indicator of research performance developed by our institute. The indicator aims to normalize citation counts for differences among…