5 citations · 8 across the 7 of their papers we have counts for
7 papers · 1 filter
A systematic empirical comparison of different approaches for normalizing citation impact indicators
Ludo Waltman, Nees Jan van Eck
We address the question how citation-based bibliometric indicators can best be normalized to ensure fair comparisons between publications from different scientific fields and diffe…
Counting publications and citations: Is more always better?
Ludo Waltman, Nees Jan van Eck, Paul Wouters
Is more always better? We address this question in the context of bibliometric indices that aim to assess the scientific impact of individual researchers by counting their number o…
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…
A comparison of two techniques for bibliometric mapping: Multidimensional scaling and VOS
Nees Jan van Eck, Ludo Waltman, Rommert Dekker +1
VOS is a new mapping technique that can serve as an alternative to the well-known technique of multidimensional scaling. We present an extensive comparison between the use of multi…
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…