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08/04/2023
What do we know about the disruption indicator in scientometrics? An overview of the literature
The purpose of this paper is to provide a review of the literature on th...
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03/31/2023
How to measure research performance of single scientists? A proposal for an index based on scientific prizes: The Prize Winner Index (PWI)
In this study, we propose a new index for measuring excellence in scienc...
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06/24/2022
Identification of young talented individuals in the natural and life sciences using bibliometric data
Identification of young talented individuals is not an easy task. Citati...
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05/06/2022
Revolutions in science: The proposal of an approach for the identification of most important researchers, institutions, and countries based on Reference Publication Year Spectr
RPYS is a bibliometric method originally introduced in order to reveal t...
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01/12/2022
Empirical analysis of recent temporal dynamics of research fields: Annual publications in chemistry and related areas as an example
Changes in the number of publications in a certain field might reflect t...
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12/08/2021
Scores of a specific field-normalized indicator calculated with different approaches of field-categorization: Are the scores different or similar?
Usage of field-normalized citation scores is a bibliometric standard. Di...
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09/02/2021
Reference Publication Year Spectroscopy (RPYS) in practice: A software tutorial
In course of the organization of Workshop III entitled "Cited References...
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08/25/2021
Report on Workshop III "Cited References Analysis Using CRExplorer" at the 18th International Conference of the International Society for Scientometrics and Informetrics (ISSI2
We have organized Workshop III entitled "Cited References Analysis Using...
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06/25/2021
Heat Waves – a hot topic in climate change research
Research on heat waves (periods of excessively hot weather, which may be...
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05/18/2021
Quantum technology 2.0 – topics and contributing countries from 1980 to 2018
The second quantum technological revolution started around 1980 with the...
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03/18/2021
Mapping the impact of papers on various status groups: A new excellence mapping tool based on citation and reader scores
In over five years, Bornmann, Stefaner, de Moya Anegon, and Mutz (2014) ...
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01/27/2021
Investigating Diffusion of Scientific Knowledge on Twitter: A Study of Topic Networks of Opioid Publications
One way to assess the value of scientific research is to measure the att...
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12/14/2020
Growth rates of modern science: A latent piecewise growth curve approach to model publication numbers from established and new literature databases
Growth of science is a prevalent issue in science of science studies. In...
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08/29/2020
A Decade of In-text Citation Analysis based on Natural Language Processing and Machine Learning Techniques: An overview of empirical studies
Citation analysis is one of the most frequently used methods in research...
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06/18/2020
Convergent validity of several indicators measuring disruptiveness with milestone assignments to physics papers by experts
This study focuses on a recently introduced type of indicator measuring ...
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04/29/2020
Are papers addressing certain diseases perceived where these diseases are prevalent? The proposal to use Twitter data as social-spatial sensors
We propose to use Twitter data as social-spatial sensors. This study dea...
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03/25/2020
Which papers cited which tweets? An empirical analysis based on Scopus data
Many altmetric studies analyze which papers were mentioned how often in ...
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01/13/2020
An Evaluation of Percentile Measures of Citation Impact, and a Proposal for Making Them Better
Percentiles are statistics pointing to the standing of a paper's citatio...
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11/20/2019
Do disruption index indicators measure what they propose to measure? The comparison of several indicator variants with assessments by peers
Recently, Wu, Wang, and Evans (2019) and Bu, Waltman, and Huang (2019) p...
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10/24/2019
Should citations be field-normalized in evaluative bibliometrics? An empirical analysis based on propensity score matching
Field-normalization of citations is bibliometric standard. Despite the o...
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10/08/2019
Do we measure novelty when we analyze unusual combinations of cited references? A validation study of bibliometric novelty indicators based on F1000Prime data
Lee, Walsh, and Wang (2015) - based on Uzzi, Mukherjee, Stringer, and Jo...
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09/09/2019
Is culture a contributing factor of strong science?
Many factors such as economy size, capital resources, and size of nation...
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06/10/2019
What Do Citation Counts Measure? An Updated Review of Studies on Citations in Scientific Documents Published between 2006 and 2018
The purpose of this paper is to update the review of Bornmann and Daniel...
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05/27/2019
Does the h_α index reinforce the Matthew effect in science? Agent-based simulations using Stata and R
Recently, Hirsch (2019a) proposed a new variant of the h index called th...
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05/23/2019
Citation concept analysis (CCA) - A new form of citation analysis revealing the usefulness of concepts for other researchers illustrated by two exemplary case studies including
In recent years, the full text of papers are increasingly available elec...
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05/22/2019
R package for producing beamplots as a preferred alternative to the h index when assessing single researchers (based on downloads from Web of Science)
We propose the use of beamplots - which can be produced by using the R p...
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04/29/2019
Author name disambiguation of bibliometric data: A comparison of several unsupervised approaches
Adequately disambiguating author names in bibliometric databases is a pr...
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01/25/2019
Which are the influential publications in the Web of Science subject categories over a long period of time? CRExplorer software used for big-data analyses in bibliometrics
What are the landmark papers in scientific disciplines? On whose shoulde...
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01/04/2019
How well does I3 perform for impact measurement compared to other bibliometric indicators? The convergent validity of several (field-normalized) indicators
Recently, the integrated impact indicator (I3) indicator was introduced ...
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01/04/2019
The convergent validity of several (field-normalized) bibliometric indicators: How well does I3 perform for impact measurement?
Recently, the integrated impact indicator (I3) indicator was introduced ...
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12/09/2018
The Integrated Impact Indicator (I3) Revisited: A Non-Parametric Alternative to the Journal Impact Factor
We propose the I3* indicator as a non-parametric alternative to the Jour...
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12/09/2018
I3: A Non-Parametric Alternative to the Journal Impact Factor
We applied the integrated impact indicator (I3) to more than 10,000 jour...
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10/30/2018
Bibliometrics-based heuristics: What is their definition and how can they be studied?
Paradoxically, bibliometric indicators (i.e., publications and citation ...
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10/17/2018
Does the public discuss other topics on climate change than researchers? A comparison of explorative networks based on author keywords and hashtags
Twitter accounts have already been used in many scientometric studies, b...
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10/17/2018
Does the public discuss other topics on climate change than researchers? A comparison of networks based on author keywords and hashtags
Twitter accounts have already been used in many scientometrics studies, ...
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10/16/2018
hα: The Scientist as Chimpanzee or Bonobo
In a recent paper, Hirsch (2018) proposes to attribute the credit for a ...
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10/16/2018
hα: The Scientist as Chimpanzee or Bonobohα: The Scientist as Chimpanzee or Bonobo
In a recent paper, Hirsch (2018) proposes to attribute the credit for a ...
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07/13/2018
Heuristics as conceptual lens for understanding and studying the usage of bibliometrics in research evaluation
While bibliometrics is widely used for research evaluation purposes, a c...
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07/12/2018
How to identify the roots of broad research topics and fields? The introduction of RPYS sampling using the example of climate change research
Since the introduction of the reference publication year spectroscopy (R...
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07/11/2018
Interdisciplinarity as Diversity in Citation Patterns among Journals: Rao-Stirling Diversity, Relative Variety, and the Gini coefficient
Questions of definition and measurement continue to constrain a consensu...
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07/11/2018
Do altmetrics assess societal impact in a comparable way to case studies? An empirical test of the convergent validity of altmetrics based on data from the UK Research Excellen
Altmetrics have been proposed as a way to assess the societal impact of ...
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07/11/2018
Do altmetrics assess societal impact in the same way as case studies? An empirical analysis testing the convergent validity of altmetrics based on data from the UK Research Exc
Altmetrics have been proposed as a way to assess the societal impact of ...
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06/01/2018
Creativity in Science and the Link to Cited References: Is the Creative Potential of Papers Reflected in their Cited References?
Several authors have proposed that a large number of unusual combination...
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05/26/2018
The value and credits of n-authors publications
Collaboration among researchers is becoming increasingly common, which r...
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05/16/2018
Critical rationalism and the search for standard (field-normalized) indicators in bibliometrics
Bibliometrics plays an increasingly important role in research evaluatio...
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04/27/2018
Opium in science and society: Numbers
In science and beyond, numbers are omnipresent when it comes to justifyi...
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03/01/2018
Discontinuities in Citation Relations among Journals: Self-organized Criticality as a Model of Scientific Revolutions and Change
Using three-year moving averages of the complete Journal Citation Report...
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02/27/2018
The concordance of field-normalized scores based on Web of Science and Microsoft Academic data: A case study in computer sciences
In order to assess Microsoft Academic as a useful data source for evalua...
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02/26/2018
Which differences can be expected when two universities in the Leiden Ranking are compared? Some benchmarks for institutional research evaluations
The comparison of two universities in terms of bibliometric indicators f...
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02/03/2018