6.3k citations · 9.2k across the 53 of their papers we have counts for
5 papers · 1 filter
Clustering scientific publications based on citation relations: A systematic comparison of different methods
Lovro Šubelj, Nees Jan van Eck, Ludo Waltman
Clustering methods are applied regularly in the bibliometric literature to identify research areas or scientific fields. These methods are for instance used to group publications i…
Large-Scale Analysis of the Accuracy of the Journal Classification Systems of Web of Science and Scopus
Qi Wang, Ludo Waltman
Journal classification systems play an important role in bibliometric analyses. The two most important bibliographic databases, Web of Science and Scopus, each provide a journal cl…
A review of the literature on citation impact indicators
Ludo Waltman
Citation impact indicators nowadays play an important role in research evaluation, and consequently these indicators have received a lot of attention in the bibliometric and scient…
Predicting the long-term citation impact of recent publications
Clara Stegehuis, Nelly Litvak, Ludo Waltman
A fundamental problem in citation analysis is the prediction of the long-term citation impact of recent publications. We propose a model to predict a probability distribution for t…
Field-normalized citation impact indicators and the choice of an appropriate counting method
Ludo Waltman, Nees Jan van Eck
Bibliometric studies often rely on field-normalized citation impact indicators in order to make comparisons between scientific fields. We discuss the connection between field norma…