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02/01/2022
A discussion of measuring the top-1 percent most-highly cited publications: Quality and impact of Chinese papers
The top 1 percent most highly cited articles are watched closely as the ...
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11/17/2020
Are University Rankings Statistically Significant? A Comparison among Chinese Universities and with the USA
Purpose: We address the question of whether differences are statisticall...
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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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05/05/2019
Within-Journal Self-citations and the Pinski-Narin Influence Weights
The Journal Impact Factor (JIF) is linearly sensitive to self-citations ...
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05/05/2019
Impact factors, Within-Journal Self-citations, and the Pinski-Narin Influence Weights: An analysis using both subfields and the complete Journal Citation Reports 2017
The Journal Impact Factor (JIF) is linearly sensitive to self-citations ...
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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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10/17/2018
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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08/29/2018
Revisiting Relative Indicators and Provisional Truths
Following discussions in 2010 and 2011, scientometric evaluators have in...
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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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06/04/2018
Topic Modelling of Empirical Text Corpora: Validity, Reliability, and Reproducibility in Comparison to Semantic Maps
Using the 6,638 case descriptions of societal impact submitted for evalu...
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05/30/2018
Regions, Innovation Systems, and the North-South Divide in Italy
Using firm-level data collected by Statistics Italy for 2008, 2011, and ...
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03/25/2018
Diversity and Interdisciplinarity: How Can One Distinguish and Recombine Disparity, Variety, and Balance?
The dilemma which remained unsolved using Rao-Stirling diversity, namely...
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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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02/03/2018
The negative effects of citing with a national orientation in terms of recognition: national and international citations in natural-sciences papers from Germany, the Netherland
Nations can be distinguished in terms of whether domestic or internation...
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02/03/2018
The negative effects of citing with a national orientation in terms of recognition: national and international citations in papers from Germany, the Netherlands, and UK
Leading nations can be distinguished in terms of whether domestic or int...
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01/29/2018
Data-mining the Foundational Patents of Photovoltaic Materials: An application of Patent Citation Spectroscopy
We apply Patent Citation Spectroscopy (PCS)--originally developed as Ref...
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12/13/2017
The relative influences of government funding and international collaboration on citation impact
In a recent publication in Nature, Wagner & Jonkers (2017) report that p...
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11/22/2017
Automated Analysis of Topic-Actor Networks on Twitter: New approach to the analysis of socio-semantic networks
Social-media data provides increasing opportunities for automated analys...
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10/30/2017
Statistical Significance and Effect Sizes of Differences among Research Universities at the Level of Nations and Worldwide based on the Leiden Rankings
One can use the Leiden Rankings for grouping research universities by co...
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10/30/2017
Synergy in the Knowledge Base of U.S. Innovation Systems at National, State, and Regional Levels: The Contributions of High-Tech Manufacturing and Knowledge-Intensive Services
Synergies among technological opportunities, market perspectives, and ge...
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10/09/2017
Patent Citation Spectroscopy (PCS): Algorithmic retrieval of landmark patents
One essential component in the construction of patent landscapes in biom...
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09/19/2017
The geography of references in elite articles: What countries contribute to the archives of knowledge
This study is intended to find an answer for the question on which natio...
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08/15/2017
Reference Publication Year Spectroscopy (RPYS) of Eugene Garfield's publications
Which studies, theories, and ideas have influenced Eugene Garfield's sci...
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07/06/2017
Probing Multivariate Indicators for Academic Evaluation
We combine the Integrated Impact Indicator (I3) and the h-index into the...
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05/09/2017
Betweenness and Diversity in Journal Citation Networks as Measures of Interdisciplinarity -- A Tribute to Eugene Garfield --
Journals were central to Eugene Garfield's research interests. Among oth...
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02/24/2017
Mapping Patent Classifications: Portfolio and Statistical Analysis, and the Comparison of Strengths and Weaknesses
The Cooperative Patent Classifications (CPC) jointly developed by the Eu...
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01/10/2017
Toward a Calculus of Redundancy: The feedback arrow of expectations in knowledge-based systems
Whereas the generation of Shannon-type information is coupled to the sec...
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12/20/2016
Growth of International Cooperation in Science: Revisiting Six Case Studies
International collaboration in science continues to grow at a remarkable...
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12/17/2016
Patent Portfolio Analysis of Cities: Statistics and Maps of Technological Inventiveness
Cities are engines of the knowledge-based economy, because they are the ...
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11/14/2010
"Meaning" as a sociological concept: A review of the modeling, mapping, and simulation of the communication of knowledge and meaning
The development of discursive knowledge presumes the communication of me...
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05/05/2010