Starting out from a broad concept of research output, this article looks at the question as to what research outputs can typically be expected from certain disciplines. Based on a secondary analysis of data from final project reports (ex post research evaluation) at the Austrian Science Fund...

Due to the disadvantages of the h index that have been named since Hirsch's first publication of the index in 2005 (Hirsch, 2005), a number of variants that are intended to compensate for the weaknesses have been proposed. Bornmann et al (2008a, 2009b) tested (1) whether the variants developed...

The percentages of shares of world publications of the European Union and its member states, China, and the United States have been represented differently as a result of using different databases. An analytical variant of the Web-of-Science (of Thomson Reuters) enables us to study the dynamics...

Evaluative bibliometrics compare the citation impact of researchers, research groups and institutions with each other across time scales and disciplines. Both factors, discipline and period – have an influence on the citation count which is independent of the quality of the publication....

"The discussion about a reform of the promotion of junior academic staff is currently being fostered not least with regard to the attractiveness of the 'academic location of Germany' and the perception of a 'brain drain' of people with doctorates moving abroad. Against this background it is...

"The discussion about a reform of the promotion of junior academic staff is currently being fostered not least with regard to the attractiveness of the 'academic location of Germany' and the perception of a 'brain drain' of people with doctorates moving abroad. Against this background it is...

A proposal is made in this paper for a broadening of perspective in evaluative bibliometrics by complementing the (standard) times cited with a cited reference analysis for a field-specific citation impact measurement. The times cited approach counts the citations of a given publication set. In...

The findings of Bornmann, Leydesdorff, and Wang (2013b) revealed that the consideration of journal impact improves the prediction of long-term citation impact. This paper further explores the possibility of improving citation impact measurements on the base of a short citation window by the...

Bornmann and Leydesdorff (2011) proposed methods based on Web of Science data to identify field-specific excellence in cities where highly cited papers were published more frequently than can be expected. Top performers in output are cities in which authors are located who publish a number of...

For comparisons of citation impacts across fields and over time, bibliometricians normalize the observed citation counts with reference to an expected citation value. Percentile-based approaches have been proposed as a non-parametric alternative to parametric central-tendency statistics....