• Publications
  • Influence
The Leiden ranking 2011/2012: Data collection, indicators, and interpretation
TLDR
The Leiden Ranking 2011/2012 is a ranking of universities based on bibliometric indicators of publication output, citation impact, and scientific collaboration. Expand
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Fatal attraction: Conceptual and methodological problems in the ranking of universities by bibliometric methods
  • A. V. Raan
  • Sociology, Computer Science
  • Scientometrics
  • 22 February 2005
TLDR
A system of input, output, and efficiency indicators is sketched out, with each indicator related to basic research, applied research, and experimental development. Expand
  • 501
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Towards a new crown indicator: Some theoretical considerations
TLDR
We examine the theoretical basis of the normalization mechanism applied in the crown indicator. Expand
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Sleeping Beauties in science
  • A. V. Raan
  • History, Computer Science
  • Scientometrics
  • 15 December 2004
TLDR
A ‘Sleeping Beauty in Science’ is a publication that goes unnoticed (‘sleeps’) for a long time and then, almost suddenly, attracts a lot of attention. Expand
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Comparison of the Hirsch-index with standard bibliometric indicators and with peer judgment for 147 chemistry research groups
  • A. V. Raan
  • Computer Science, Physics
  • Scientometrics
  • 24 November 2005
TLDR
In this paper we present characteristics of the statistical correlation between the Hirsch (h-) index and several standard bibliometric indicators, as well as with the results of peer review judgment. Expand
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The influence of international collaboration on the impact of research results
  • A. V. Raan
  • Sociology, Computer Science
  • Scientometrics
  • 1 October 1998
TLDR
We prove that higher rates of self-citation in international collaboration do not play any significant role as ‘impact amplifier’. Expand
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Measuring Science: Capita Selecta of Current Main Issues
After a review of developments in the quantitative study of science, particularly since the early 1970s, I focus on two current main lines of 'measuring science' based on bibliometric analysis. WithExpand
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The use of bibliometric data for the measurement of university research performance
Abstract In this paper we present the results of a study on the potentialities of “bibliometric” (publication and citation) data as tools for university research policy. In this study bibliometricExpand
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Advanced bibliometric methods as quantitative core of peer review based evaluation and foresight exercises
  • A. V. Raan
  • Computer Science
  • Scientometrics
  • 1 July 1996
TLDR
This paper gives an overview of the potentials and limitations of bibliometric methods for the assessment of strengths and weaknesses in research performance, and for monitoring scientific developments. Expand
  • 317
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The Holy Grail of science policy: Exploring and combining bibliometric tools in search of scientific excellence
TLDR
We present a comparative analysis of a number of standard and new indicators of research performance or 'scientific excellence', using techniques applied in studies conducted by CWTS in recent years. Expand
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