Lutz Bornmann

2025

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Finding "similar" universities using ChatGPT for institutional benchmarking: A large-scale comparison of European universities.
Benedetto Lepori|Lutz Bornmann|Mario Gay
Journal of the Association for Information Science and Technology (JASIST) 2025 Volume 76 Issue 9

2019

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The Relative Influences of Government Funding and International Collaboration on Citation Impact.
Loet Leydesdorff|Lutz Bornmann|Caroline S. Wagner
Journal of the Association for Information Science and Technology (JASIST) 2019 Volume 70 Issue 2
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Statistical significance and effect sizes of differences among research universities at the level of nations and worldwide based on the leiden rankings.
Loet Leydesdorff|Lutz Bornmann|John Mingers
Journal of the Association for Information Science and Technology (JASIST) 2019 Volume 70 Issue 5

2018

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"Smart girls" versus "sleeping beauties" in the sciences: The identification of instant and delayed recognition by using the citation angle.
Fred Y. Ye|Lutz Bornmann
Journal of the Association for Information Science and Technology (JASIST) 2018 Volume 69 Issue 3

2017

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An empirical look at the nature index.
Lutz Bornmann|Robin Haunschild
Journal of the Association for Information Science and Technology (JASIST) 2017 Volume 68 Issue 3
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Is collaboration among scientists related to the citation impact of papers because their quality increases with collaboration? An analysis based on data from F1000Prime and normalized citation scores.
Lutz Bornmann
Journal of the Association for Information Science and Technology (JASIST) 2017 Volume 68 Issue 4
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Relative Citation Ratio (RCR): An empirical attempt to study a new field-normalized bibliometric indicator.
Lutz Bornmann|Robin Haunschild
Journal of the Association for Information Science and Technology (JASIST) 2017 Volume 68 Issue 4

2016

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A new approach to the QS university ranking using the composite I-distance indicator: Uncertainty and sensitivity analyses.
Marina Dobrota|Milica Bulajic|Lutz Bornmann|Veljko Jeremic
Journal of the Association for Information Science and Technology (JASIST) 2016 Volume 67 Issue 1
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The application of bibliometrics to research evaluation in the humanities and social sciences: An exploratory study using normalized Google Scholar data for the publications of a research institute.
Lutz Bornmann|Andreas Thor|Werner Marx|Hermann Schier
Journal of the Association for Information Science and Technology (JASIST) 2016 Volume 67 Issue 11
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Highly cited papers in Library and Information Science (LIS): Authors, institutions, and network structures.
Johann Bauer|Loet Leydesdorff|Lutz Bornmann
Journal of the Association for Information Science and Technology (JASIST) 2016 Volume 67 Issue 12
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Overlay maps based on Mendeley data: The use of altmetrics for readership networks.
Lutz Bornmann|Robin Haunschild
Journal of the Association for Information Science and Technology (JASIST) 2016 Volume 67 Issue 12
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The operationalization of "fields" as WoS subject categories (WCs) in evaluative bibliometrics: The cases of "library and information science" and "science & technology studies".
Loet Leydesdorff|Lutz Bornmann
Journal of the Association for Information Science and Technology (JASIST) 2016 Volume 67 Issue 3
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What do altmetrics counts mean? A plea for content analyses.
Lutz Bornmann
Journal of the Association for Information Science and Technology (JASIST) 2016 Volume 67 Issue 4
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Replicability and the public/private divide.
Loet Leydesdorff|Caroline S. Wagner|Lutz Bornmann
Journal of the Association for Information Science and Technology (JASIST) 2016 Volume 67 Issue 7
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How much does the expected number of citations for a publication change if it contains the address of a specific scientific institute? A new approach for the analysis of citation data on the institutional level based on regression models.
Lutz Bornmann
Journal of the Association for Information Science and Technology (JASIST) 2016 Volume 67 Issue 9

2015

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Nature's top 100 revisited.
Lutz Bornmann
Journal of the Association for Information Science and Technology (JASIST) 2015 Volume 66 Issue 10
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Which of the world's institutions employ the most highly cited researchers? An analysis of the data from highlycited.com.
Lutz Bornmann|Johann Bauer
Journal of the Association for Information Science and Technology (JASIST) 2015 Volume 66 Issue 10
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Growth rates of modern science: A bibliometric analysis based on the number of publications and cited references.
Lutz Bornmann|Rüdiger Mutz
Journal of the Association for Information Science and Technology (JASIST) 2015 Volume 66 Issue 11
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Testing for the fairness and predictive validity of research funding decisions: A multilevel multiple imputation for missing data approach using ex-ante and ex-post peer evaluation data from the Austrian science fund.
Rüdiger Mutz|Lutz Bornmann|Hans-Dieter Daniel
Journal of the Association for Information Science and Technology (JASIST) 2015 Volume 66 Issue 11
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Interrater reliability and convergent validity of F1000Prime peer review.
Lutz Bornmann
Journal of the Association for Information Science and Technology (JASIST) 2015 Volume 66 Issue 12
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Distribution of women and men among highly cited scientists.
Lutz Bornmann|Johann Bauer|Robin Haunschild
Journal of the Association for Information Science and Technology (JASIST) 2015 Volume 66 Issue 12
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How well does a university perform in comparison with its peers? The use of odds, and odds ratios, for the comparison of institutional citation impact using the Leiden Rankings.
Lutz Bornmann|Rüdiger Mutz
Journal of the Association for Information Science and Technology (JASIST) 2015 Volume 66 Issue 12
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BRICS countries and scientific excellence: A bibliometric analysis of most frequently cited papers.
Lutz Bornmann|Caroline S. Wagner|Loet Leydesdorff
Journal of the Association for Information Science and Technology (JASIST) 2015 Volume 66 Issue 7
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Complex tasks and simple solutions: The use of heuristics in the evaluation of research.
Lutz Bornmann
Journal of the Association for Information Science and Technology (JASIST) 2015 Volume 66 Issue 8

2014

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Do we still need peer review? An argument for change - By T.H.P. Gould.
Lutz Bornmann
Journal of the Association for Information Science and Technology (JASIST) 2014 Volume 65 Issue 1
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Distributions instead of single numbers: Percentiles and beam plots for the assessment of single researchers.
Lutz Bornmann|Werner Marx
Journal of the Association for Information Science and Technology (JASIST) 2014 Volume 65 Issue 1
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The reception of publications by scientists in the early days of modern science.
Lutz Bornmann
Journal of the Association for Information Science and Technology (JASIST) 2014 Volume 65 Issue 10
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On the function of university rankings.
Lutz Bornmann
Journal of the Association for Information Science and Technology (JASIST) 2014 Volume 65 Issue 2
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Is there currently a scientific revolution in Scientometrics?
Lutz Bornmann
Journal of the Association for Information Science and Technology (JASIST) 2014 Volume 65 Issue 3
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What proportion of excellent papers makes an institution one of the best worldwide? Specifying thresholds for the interpretation of the results of the SCImago Institutions Ranking and the Leiden Ranking.
Lutz Bornmann|Félix de Moya-Anegón
Journal of the Association for Information Science and Technology (JASIST) 2014 Volume 65 Issue 4
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On the problems of dealing with bibliometric data.
Werner Marx|Lutz Bornmann
Journal of the Association for Information Science and Technology (JASIST) 2014 Volume 65 Issue 4
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Detecting the historical roots of research fields by reference publication year spectroscopy (RPYS).
Werner Marx|Lutz Bornmann|Andreas Barth|Loet Leydesdorff
Journal of the Association for Information Science and Technology (JASIST) 2014 Volume 65 Issue 4
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On scientific misconduct.
Harry Collins|Lutz Bornmann
Journal of the Association for Information Science and Technology (JASIST) 2014 Volume 65 Issue 5
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The wisdom of citing scientists.
Lutz Bornmann|Werner Marx
Journal of the Association for Information Science and Technology (JASIST) 2014 Volume 65 Issue 6
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From P100 to P100': A new citation-rank approach.
Lutz Bornmann|Rüdiger Mutz
Journal of the Association for Information Science and Technology (JASIST) 2014 Volume 65 Issue 9

2013

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How can journal impact factors be normalized across fields of science? An assessment in terms of percentile ranks and fractional counts.
Loet Leydesdorff|Ping Zhou|Lutz Bornmann
Journal of the Association for Information Science and Technology (JASIST) 2013 Volume 64 Issue 1
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Do Universities or Research Institutions With a Specific Subject Profile Have an Advantage or a Disadvantage in Institutional Rankings? A Latent Class Analysis With Data From the SCImago Ranking.
Lutz Bornmann|Félix de Moya-Anegón|Rüdiger Mutz
Journal of the Association for Information Science and Technology (JASIST) 2013 Volume 64 Issue 11
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Field-normalized impact factors (IFs): A comparison of rescaling and fractionally counted IFs.
Loet Leydesdorff|Filippo Radicchi|Lutz Bornmann|Claudio Castellano|Wouter de Nooy
Journal of the Association for Information Science and Technology (JASIST) 2013 Volume 64 Issue 11
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What is societal impact of research and how can it be assessed? a literature survey.
Lutz Bornmann
Journal of the Association for Information Science and Technology (JASIST) 2013 Volume 64 Issue 2
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How to analyze percentile citation impact data meaningfully in bibliometrics: The statistical analysis of distributions, percentile rank classes, and top-cited papers.
Lutz Bornmann
Journal of the Association for Information Science and Technology (JASIST) 2013 Volume 64 Issue 3
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The problem of percentile rank scores used with small reference sets.
Lutz Bornmann
Journal of the Association for Information Science and Technology (JASIST) 2013 Volume 64 Issue 3
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Statistical tests and research assessments: A comment on Schneider (2012).
Lutz Bornmann|Loet Leydesdorff
Journal of the Association for Information Science and Technology (JASIST) 2013 Volume 64 Issue 6
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Multilevel-statistical reformulation of citation-based university rankings: The Leiden ranking 2011/2012.
Lutz Bornmann|Rüdiger Mutz|Hans-Dieter Daniel
Journal of the Association for Information Science and Technology (JASIST) 2013 Volume 64 Issue 8

2012

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The Anna Karenina principle: A way of thinking about success in science.
Lutz Bornmann|Werner Marx
Journal of the Association for Information Science and Technology (JASIST) 2012 Volume 63 Issue 10
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Mapping (USPTO) patent data using overlays to Google Maps.
Loet Leydesdorff|Lutz Bornmann
Journal of the Association for Information Science and Technology (JASIST) 2012 Volume 63 Issue 7
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Percentile ranks and the integrated impact indicator (I3).
Loet Leydesdorff|Lutz Bornmann
Journal of the Association for Information Science and Technology (JASIST) 2012 Volume 63 Issue 9

2011

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Is interactive open access publishing able to identify high-impact submissions? A study on the predictive validity of Atmospheric Chemistry and Physics by using percentile rank classes.
Lutz Bornmann|Hermann Schier|Werner Marx|Hans-Dieter Daniel
Journal of the Association for Information Science and Technology (JASIST) 2011 Volume 62 Issue 1
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Which cities produce more excellent papers than can be expected? A new mapping approach, using Google Maps, based on statistical significance testing.
Lutz Bornmann|Loet Leydesdorff
Journal of the Association for Information Science and Technology (JASIST) 2011 Volume 62 Issue 10
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Integrated impact indicators compared with impact factors: An alternative research design with policy implications.
Loet Leydesdorff|Lutz Bornmann
Journal of the Association for Information Science and Technology (JASIST) 2011 Volume 62 Issue 11
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How fractional counting of citations affects the impact factor: Normalization in terms of differences in citation potentials among fields of science.
Loet Leydesdorff|Lutz Bornmann
Journal of the Association for Information Science and Technology (JASIST) 2011 Volume 62 Issue 2
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Do we need the E-index in addition to the h-index and its variants?
Lutz Bornmann
Journal of the Association for Information Science and Technology (JASIST) 2011 Volume 62 Issue 7
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Turning the tables on citation analysis one more time: Principles for comparing sets of documents.
Loet Leydesdorff|Lutz Bornmann|Rüdiger Mutz|Tobias Opthof
Journal of the Association for Information Science and Technology (JASIST) 2011 Volume 62 Issue 7

2010

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Reference standards and reference multipliers for the comparison of the citation impact of papers published in different time periods.
Werner Marx|Lutz Bornmann|Manuel Cardona
Journal of the Association for Information Science and Technology (JASIST) 2010 Volume 61 Issue 10

2009

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Do we need the h index and its variants in addition to standard bibliometric measures?
Lutz Bornmann|Rüdiger Mutz|Hans-Dieter Daniel
Journal of the Association for Information Science and Technology (JASIST) 2009 Volume 60 Issue 6
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Universality of citation distributions-A validation of Radicchi et al.'s relative indicator cf = c/c0 at the micro level using data from chemistry.
Lutz Bornmann|Hans-Dieter Daniel
Journal of the Association for Information Science and Technology (JASIST) 2009 Volume 60 Issue 8

2008

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Selecting manuscripts for a high-impact journal through peer review: A citation analysis of communications that were accepted by Angewandte Chemie International Edition, or rejected but published elsewhere.
Lutz Bornmann|Hans-Dieter Daniel
Journal of the Association for Information Science and Technology (JASIST) 2008 Volume 59 Issue 11
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Are there better indices for evaluation purposes than the h index? A comparison of nine different variants of the h index using data from biomedicine.
Lutz Bornmann|Rüdiger Mutz|Hans-Dieter Daniel
Journal of the Association for Information Science and Technology (JASIST) 2008 Volume 59 Issue 5

2007

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Multiple publication on a single research study: Does it pay? The influence of number of research articles on total citation counts in biomedicine.
Lutz Bornmann|Hans-Dieter Daniel
Journal of the Association for Information Science and Technology (JASIST) 2007 Volume 58 Issue 8
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What do we know about the h index?
Lutz Bornmann|Hans-Dieter Daniel
Journal of the Association for Information Science and Technology (JASIST) 2007 Volume 58 Issue 9