Ludo Waltman

Leiden University

Pilot corpus only

This score is computed over theSindex pilot corpus and does not cover the full scientific literature. Scores are relative to papers we have ingested — papers, authors, and institutions outside the pilot are not represented. Methodology.

Top 1%percentile

17.5Author DataRank

Indexed papers

43in pilot corpus

datarank_citation_only_1hop_v6· scope data_onlyMethodology

Why this DataRank?

An author's DataRank is the sum of the DataRanks of all 43 indexed papers attributed to them. A prolific author with many moderate-impact papers can outrank one with a single high-impact paper.

Author scores recompute whenever paper DataRanks are refreshed, so this number lags the underlying paper scores by at most one batch run.

Read the full methodology →

The highest-impact dataset this researcher has shared, ranked by DataRank — the single contribution doing the most to lift their data-sharing standing.

The Leiden ranking 2011/2012: Data collection, indicators, and interpretation

Journal of the American Society for Information Science and Technology(2012)10.1002/asi.22708

Top 1%

10.7DataRank

Top 1%454 citations

Clara Calero‐Medina, Joost Kosten, Nees Jan van Eck, Thed N. van Leeuwen, Martijn S. Visser +5 more

Papers

Driven by 240 papers — median percentile 0. Top paper: “The Leiden ranking 2011/2012: Data collection, indicators, and interpretation”.

The Leiden ranking 2011/2012: Data collection, indicators, and interpretation

Journal of the American Society for Information Science and Technology(2012)10.1002/asi.22708

Top 1%

10.7DataRank

Top 1%454 citations

Clara Calero‐Medina, Joost Kosten, Nees Jan van Eck, Thed N. van Leeuwen, Martijn S. Visser +5 more

An empirical analysis of the use of alphabetical authorship in scientific publishing

Journal of Informetrics(2012)10.1016/j.joi.2012.07.008

N/A

9.8DataRank · unranked

180 citations

Ludo Waltman

Rivals for the crown: Reply to Opthof and Leydesdorff

Journal of Informetrics(2010)10.1016/j.joi.2010.03.008

N/A

8.5DataRank · unranked

111 citations

Thed N. van Leeuwen, Martijn S. Visser, Nees Jan van Eck, Ludo Waltman, Anthony F. J. van Raan

Source normalized indicators of citation impact: an overview of different approaches and an empirical comparison

Scientometrics(2012)10.1007/s11192-012-0913-4

N/A

6.3DataRank · unranked

147 citations

Nees Jan van Eck, Ludo Waltman

Field-normalized citation impact indicators using algorithmically constructed classification systems of science

Journal of Informetrics(2015)10.1016/j.joi.2014.11.010

N/A

6.2DataRank · unranked

126 citations

Ludo Waltman, Javier Ruiz‐Castillo, Javier Ruiz-Castillo

Clustering Scientific Publications Based on Citation Relations: A Systematic Comparison of Different Methods

PLOS ONE(2016)10.1371/journal.pone.0154404

N/A

4.9DataRank · unranked

138 citations

Nees Jan van Eck, Ludo Waltman, Lovro Šubelj

Characterizing in-text citations in scientific articles: A large-scale analysis

Journal of Informetrics(2018)10.1016/j.joi.2017.11.005

N/A

4.8DataRank · unranked

123 citations

Nees Jan van Eck, Giovanni Colavizza, Ludo Waltman, Kevin W. Boyack

Universality of citation distributions revisited

Journal of the American Society for Information Science and Technology(2011)10.1002/asi.21671

N/A

4.5DataRank · unranked

88 citations

Nees Jan van Eck, Anthony F. J. van Raan, Ludo Waltman

The detection of “hot regions” in the geography of science—A visualization approach by using density maps

Journal of Informetrics(2011)10.1016/j.joi.2011.04.006

N/A

3.9DataRank · unranked

76 citations

Ludo Waltman, Lutz Bornmann

A scientometric overview of CORD-19

PLOS ONE(2021)10.1371/journal.pone.0244839

Top 7%

3.1DataRank

Top 7%81 citations

Rodrigo Costas, Vincent A. Traag, Nees Jan van Eck, Ludo Waltman, Thed N. van Leeuwen +1 more

A recursive field-normalized bibliometric performance indicator: an application to the field of library and information science

Scientometrics(2011)10.1007/s11192-011-0449-z

N/A

2.7DataRank · unranked

57 citations

Erjia Yan, Nees Jan van Eck, Ludo Waltman

Use of the journal impact factor for assessing individual articles: Statistically flawed or not?

F1000Research(2021)10.12688/f1000research.23418.2

N/A

2.4DataRank · unranked

40 citations

Vincent A. Traag, Ludo Waltman

PageRank-Related Methods for Analyzing Citation Networks

Measuring Scholarly Impact(2014)10.1007/978-3-319-10377-8_4

N/A

2.3DataRank · unranked

59 citations

Erjia Yan, Ludo Waltman

Accuracy of citation data in Web of Science and Scopus

ISSI(2019)10.48550/arxiv.1906.07011

N/A

2.3DataRank · unranked

44 citations

Ludo Waltman, Nees Jan van Eck

Exploring the Relationship between the Engineering and Physical Sciences and the Health and Life Sciences by Advanced Bibliometric Methods

PLoS ONE(2014)10.1371/journal.pone.0111530

N/A

2.1DataRank · unranked

27 citations

Anthony F. J. van Raan, Sue Smart, Ludo Waltman

The correlation between citation-based and expert-based assessments of publication channels: SNIP and SJR vs. Norwegian quality assessments

Journal of Informetrics(2014)10.1016/j.joi.2014.09.010

N/A

1.8DataRank · unranked

33 citations

Ludo Waltman, Per Ahlgren

The elephant in the room: The problem of quantifying productivity in evaluative scientometrics

Journal of Informetrics(2016)10.1016/j.joi.2015.12.008

N/A

1.8DataRank · unranked

25 citations

Nees Jan van Eck, Paul Wouters, Martijn S. Visser, Ludo Waltman

Field Normalization of Scientometric Indicators

Springer Handbooks(2019)10.1007/978-3-030-02511-3_11

N/A

1.6DataRank · unranked

50 citations

Nees Jan van Eck, Ludo Waltman

A Novel Algorithm for Visualizing Concept Associations

(2006)10.1109/dexa.2005.23

N/A

1.5DataRank · unranked

29 citations

Ludo Waltman, Jan van den Berg, Nees Jan van Eck

Software survey: VOSviewer, a computer program for bibliometric mapping

Scientometrics(2009)10.1007/s11192-009-0146-3

N/A

1.5DataRank · unranked

19159 citations

Ludo Waltman, Nees Jan van Eck

Innovating peer review, reconfiguring scholarly communication: an analytical overview of ongoing peer review innovation activities

Journal of Documentation(2022)10.1108/jd-01-2022-0022

N/A

1.4DataRank · unranked

31 citations

Stephen Pinfield, Ludo Waltman, Helen Buckley Woods, Johanna Brumberg, Wolfgang Kaltenbrunner

Economic modeling using evolutionary algorithms: the effect of a binary encoding of strategies

Journal of Evolutionary Economics(2010)10.1007/s00191-010-0177-1

N/A

1.4DataRank · unranked

22 citations

Nees Jan van Eck, Rommert Dekker, Uzay Kaymak, Ludo Waltman

Retraction of Predatory publishing in Scopus: evidence on cross-country differences lacks justification

Scientometrics(2022)10.1007/s11192-022-04565-6

N/A

1.3DataRank · unranked

12 citations

Isidro F. Aguillo, Dag W. Aksnes, Quentin L. Burrell, Juan Miguel Campanario, Zaida Chinchilla-Rodríguez +24 more

Some Limitations of theHIndex: A Commentary on Ruscio and Colleagues' Analysis of Bibliometric Indices

Measurement: Interdisciplinary Research & Perspective(2012)10.1080/15366367.2012.716260

N/A

1.2DataRank · unranked

18 citations

Rodrigo Costas, Nees Jan van Eck, Ludo Waltman

Visualizing Bibliometric Networks

Measuring Scholarly Impact(2014)10.1007/978-3-319-10377-8_13

N/A

1.2DataRank · unranked

3156 citations

Ludo Waltman, Nees Jan van Eck

Citation-based clustering of publications using CitNetExplorer and VOSviewer

Scientometrics(2017)10.1007/s11192-017-2300-7

N/A

1.2DataRank · unranked

2532 citations

Ludo Waltman, Nees Jan van Eck

The Closer the Better: Similarity of Publication Pairs at Different Cocitation Levels

Journal of the Association for Information Science and Technology(2017)10.1002/asi.23981

N/A

1.2DataRank · unranked

29 citations

Kevin W. Boyack, Nees Jan van Eck, Ludo Waltman, Giovanni Colavizza

An overview of innovations in the external peer review of journal manuscripts.

Wellcome Open Research(2023)10.12688/wellcomeopenres.17715.2

N/A

1.1DataRank · unranked

16 citations

Johanna Brumberg, Wolfgang Kaltenbrunner, Stephen Pinfield, Ludo Waltman, Helen Buckley Woods

Bibliometrics: The Leiden Manifesto for research metrics

Nature(2015)10.1038/520429a

N/A

1.1DataRank · unranked

1838 citations

Paul Wouters, Ludo Waltman, Sarah de Rijcke, Ismael Ràfols, Diana Hicks

A unified approach to mapping and clustering of bibliometric networks

Journal of Informetrics(2010)10.1016/j.joi.2010.07.002

N/A

1.1DataRank · unranked

1637 citations

Nees Jan van Eck, Ed Noyons, Ludo Waltman

Constructing bibliometric networks: A comparison between full and fractional counting

Journal of Informetrics(2016)10.1016/j.joi.2016.10.006

N/A

1.1DataRank · unranked

1323 citations

Ludo Waltman, Nees Jan van Eck, Antonio Perianes‐Rodríguez

The experiences of COVID-19 preprint authors: a survey of researchers about publishing and receiving feedback on their work during the pandemic

PeerJ(2023)10.7717/peerj.15864

N/A

1.0DataRank · unranked

15 citations

Susana Oliveira Henriques, Stephen Pinfield, Ludo Waltman, Narmin Rzayeva

A comparison of two techniques for bibliometric mapping: Multidimensional scaling and VOS

Journal of the American Society for Information Science and Technology(2010)10.1002/asi.21421

N/A

1.0DataRank · unranked

862 citations

Ludo Waltman, Rommert Dekker, Jan van den Berg, Nees Jan van Eck

A principled methodology for comparing relatedness measures for clustering publications

Quantitative Science Studies(2020)10.1162/qss_a_00035

N/A

1.0DataRank · unranked

52 citations

Kevin W. Boyack, Giovanni Colavizza, Nees Jan van Eck, Ludo Waltman

Large-scale comparison of bibliographic data sources: Scopus, Web of Science, Dimensions, Crossref, and Microsoft Academic

arXiv (Cornell University)(2020)10.48550/arxiv.2005.10732

Top 20%

1.00DataRank

Top 20%22 citations

Nees Jan van Eck, Ludo Waltman, Martijn S. Visser

Text mining and visualization using VOSviewer

arXiv (Cornell University)(2011)10.48550/arxiv.1109.2058

N/A

0.991DataRank · unranked

737 citations

Ludo Waltman, Nees Jan van Eck

How to normalize cooccurrence data? An analysis of some well‐known similarity measures

Journal of the American Society for Information Science and Technology(2009)10.1002/asi.21075

N/A

0.987DataRank · unranked

718 citations

Ludo Waltman, Nees Jan van Eck

A new methodology for constructing a publication‐level classification system of science

Journal of the American Society for Information Science and Technology(2012)10.1002/asi.22748

N/A

0.974DataRank · unranked

660 citations

Nees Jan van Eck, Ludo Waltman

Recommendations for accelerating open preprint peer review to improve the culture of science

PLOS Biology(2024)10.1371/journal.pbio.3002502

N/A

0.947DataRank · unranked

23 citations

Frédérique Belliard, Amy Brand, Katherine Brown, Géraldine Clément-Stoneham, Stephanie Dawson +53 more

World Social Science Report 2013

OECD eBooks(2013)10.1787/9789264203419-114-en

Top 22%

0.914DataRank

Top 22%280 citations

United Nations Educational, Scientific and Cultural Organization, Ludo Waltman

Towards a new crown indicator: Some theoretical considerations

Journal of Informetrics(2011)10.1016/j.joi.2010.08.001

N/A

0.910DataRank · unranked

431 citations

Nees Jan van Eck, Thed N. van Leeuwen, Martijn S. Visser, Anthony F. J. van Raan, Ludo Waltman

VOS: A New Method for Visualizing Similarities Between Objects

Studies in Classification, Data Analysis, and Knowledge Organization(2007)10.1007/978-3-540-70981-7_34

N/A

0.871DataRank · unranked

331 citations

Ludo Waltman, Nees Jan van Eck

The inconsistency of the h‐index

Journal of the American Society for Information Science and Technology(2011)10.1002/asi.21678

N/A

0.870DataRank · unranked

330 citations

Nees Jan van Eck, Ludo Waltman

Field-normalized citation impact indicators and the choice of an appropriate counting method

Journal of Informetrics(2015)10.1016/j.joi.2015.08.001

N/A

0.842DataRank · unranked

273 citations

Nees Jan van Eck, Ludo Waltman

BIBLIOMETRIC MAPPING OF THE COMPUTATIONAL INTELLIGENCE FIELD

International Journal of Uncertainty, Fuzziness and Knowledge-Based Systems(2007)10.1142/s0218488507004911

N/A

0.840DataRank · unranked

269 citations

Ludo Waltman, N.J.P. van Eck, Nees Jan van Eck

Citation Analysis May Severely Underestimate the Impact of Clinical Research as Compared to Basic Research

PLoS ONE(2013)10.1371/journal.pone.0062395

N/A

0.828DataRank · unranked

249 citations

Ludo Waltman, Anthony F. J. van Raan, Robert J. M. Klautz, Wilco C. Peul, Robert J.M. Klautz +1 more

Some comments on the journal weighted impact factor proposed by Habibzadeh and Yadollahie

Journal of Informetrics(2008)10.1016/j.joi.2008.06.003

N/A

0.804DataRank · unranked

7 citations

Nees Jan van Eck, Ludo Waltman

Supporting priority setting in science using research funding landscapes

OPAL (Open@LaTrobe) (La Trobe University)(2019)10.6084/m9.figshare.9917825.v1

N/A

0.801DataRank · unranked

8 citations

Ismael Ràfols, Nees Jan van Eck, Alfredo Yegros, Yegros, Alfredo Yegros, Ludo Waltman

Automatic term identification for bibliometric mapping

Scientometrics(2010)10.1007/s11192-010-0173-0

N/A

0.800DataRank · unranked

206 citations

Ludo Waltman, Reindert K. Buter, Ed Noyons, Nees Jan van Eck

A systematic empirical comparison of different approaches for normalizing citation impact indicators

Journal of Informetrics(2013)10.1016/j.joi.2013.08.002

N/A

0.757DataRank · unranked

154 citations

Nees Jan van Eck, Ludo Waltman

Funding COVID-19 research: Insights from an exploratory analysis using open data infrastructures

Quantitative Science Studies(2022)10.1162/qss_a_00212

Top 27%

0.740DataRank

Top 27%15 citations

Nees Jan van Eck, Ludo Waltman, Alexis-Michel Mugabushaka

A guide for social science journal editors on easing into open science

Research Integrity and Peer Review(2024)10.1186/s41073-023-00141-5

N/A

0.735DataRank · unranked

24 citations

Colin Elman, Amanda Kay Montoya, Barbara McGillivray, Charlotte R. Pennington, Chase H. Harrison +34 more

Use of the journal impact factor for assessing individual articles need not be statistically wrong

F1000Research(2020)10.12688/f1000research.23418.1

N/A

0.723DataRank · unranked

25 citations

Vincent A. Traag, Ludo Waltman

-learning agents in a Cournot oligopoly model

Journal of Economic Dynamics and Control(2008)10.1016/j.jedc.2008.01.003

N/A

0.722DataRank · unranked

122 citations

Uzay Kaymak, Ludo Waltman

F1000 Recommendations as a Potential New Data Source for Research Evaluation: A Comparison With Citations

Journal of the Association for Information Science and Technology(2013)10.1002/asi.23040

N/A

0.689DataRank · unranked

98 citations

Rodrigo Costas, Ludo Waltman

Innovations in peer review in scholarly publishing: a meta-summary

Wellcome Open Research(2022)10.12688/wellcomeopenres.17715.1

N/A

0.679DataRank · unranked

7 citations

Johanna Brumberg, Wolfgang Kaltenbrunner, Stephen Pinfield, Ludo Waltman, Helen Buckley Woods

A large-scale bibliometric analysis of global climate change research between 2001 and 2018

Climatic Change(2022)10.1007/s10584-022-03324-z

N/A

0.652DataRank · unranked

76 citations

Ludo Waltman, Hui-Zhen Fu

Globalisation of science in kilometres

Journal of Informetrics(2011)10.1016/j.joi.2011.05.003

N/A

0.641DataRank · unranked

71 citations

Nees Jan van Eck, Robert Tijssen, Ludo Waltman

A Large-Scale Analysis of Impact Factor Biased Journal Self-Citations

PLOS ONE(2016)10.1371/journal.pone.0161021

N/A

0.637DataRank · unranked

69 citations

Ludo Waltman, Caspar Chorus

To Preprint or Not to Preprint: A Global Researcher Survey

SocArXiv (OSF Preprints)(2023)10.31235/osf.io/k7reb

N/A

0.637DataRank · unranked

7 citations

Ludo Waltman, Rong Ni

How to improve scientific peer review: Four schools of thought

Learned Publishing(2023)10.1002/leap.1544

N/A

0.633DataRank · unranked

67 citations

Wolfgang Kaltenbrunner, Stephen Pinfield, Helen Buckley Woods, Ludo Waltman

The relationship between publication volume of biomedical research and burden of disease

Leiden Repository (Leiden University)(2019)10.31219/osf.io/jeuar

N/A

0.596DataRank · unranked

8 citations

Thijs de Kruif, Lissy van de Laar, Ludo Waltman, Ingeborg Meijer, Marcel Levi +2 more

A multi-dimensional framework for characterizing the citation impact of scientific publications

arXiv (Cornell University)(2019)10.48550/arxiv.1901.09663

N/A

0.593DataRank · unranked

9 citations

Ludo Waltman, Yong Huang, Yi Bu

The challenges of scientometric studies of predatory publishing

Quantitative Science Studies(2022)10.1162/qss_e_00214

N/A

0.589DataRank · unranked

5 citations

Vincent Larivière, Ludo Waltman

Rethinking Impact Factors: New Pathways in Journal Metrics

Faculty of 1000 Research Ltd(2019)10.7490/f1000research.1116751.1

N/A

0.575DataRank · unranked

9 citations

Liz Allen, Tindaro Cicero, Stephen Curry, Sarah de Rijcke, Annette Flanagin +24 more

Understanding the Publish-Review-Curate (PRC) Model of Scholarly Communication

MetArXiv (OSF Preprints)(2024)10.31222/osf.io/h7swt

N/A

0.562DataRank · unranked

9 citations

Ludo Waltman, Jonathon Alexis Coates, Katherine S. Corker

Guidance for the Reporting of Bibliometric Analyses: A Scoping Review

medRxiv(2024)10.1101/2024.08.26.24312538

N/A

0.562DataRank · unranked

11 citations

Henry Liu, Mehvish Masood, Niveen Syed, Dimity Stephen, Ana Patricia Ayala +6 more

Visualizing the computational intelligence field [Application Notes]

IEEE Computational Intelligence Magazine(2006)10.1109/mci.2006.329702

N/A

0.542DataRank · unranked

36 citations

Ludo Waltman, Jan van den Berg, Uzay Kaymak, Nees Jan van Eck

Algorithmic labeling in hierarchical classifications of publications: Evaluation of bibliographic fields and term weighting approaches

Journal of the Association for Information Science and Technology(2021)10.1002/asi.24452

N/A

0.539DataRank · unranked

9 citations

Per Ahlgren, Ludo Waltman, Peter Sjögårde

Investigating disagreement in the scientific literature

eLife(2021)10.7554/elife.72737

N/A

0.523DataRank · unranked

30 citations

Kevin W. Boyack, Vincent Larivière, Cassidy R. Sugimoto, Nees Jan van Eck, Ludo Waltman +2 more

The relation between Eigenfactor, audience factor, and influence weight

Journal of the American Society for Information Science and Technology(2010)10.1002/asi.21354

N/A

0.515DataRank · unranked

30 citations

Nees Jan van Eck, Ludo Waltman

Some comments on Egghe's derivation of the impact factor distribution

Journal of Informetrics(2009)10.1016/j.joi.2009.05.004

N/A

0.509DataRank · unranked

16 citations

Nees Jan van Eck, Ludo Waltman

Visualizing the WCCI 2006 Knowledge Domain

2006 IEEE International Conference on Fuzzy Systems(2006)10.1109/fuzzy.2006.1681931

N/A

0.503DataRank · unranked

10 citations

Nees Jan van Eck, Ludo Waltman, Jan van den Berg, Uzay Kaymak

To preprint or not to preprint: A global researcher survey

Journal of the Association for Information Science and Technology(2024)10.1002/asi.24880

N/A

0.494DataRank · unranked

26 citations

Ludo Waltman, Rong Ni

Special section on size-independent indicators in citation analysis

Journal of Informetrics(2016)10.1016/j.joi.2016.04.001

N/A

0.489DataRank · unranked

6 citations

Ludo Waltman

Optimal specialization: Theory development and testing amongst management scholars

Academy of Management Proceedings(2012)10.5465/ambpp.2012.13505abstract

N/A

0.474DataRank · unranked

2 citations

Nees Jan van Eck, Ludo Waltman, Erin Leahey, Will Felps

Funding Covid-19 research: Insights from an exploratory analysis using open data infrastructures

arXiv (Cornell University)(2022)10.48550/arxiv.2202.11639

Top 42%

0.455DataRank

Top 42%3 citations

Nees Jan van Eck, Ludo Waltman, Alexis-Michel Mugabushaka

Halt the h-index

(2021)10.59350/p5z64-44y83

N/A

0.450DataRank · unranked

5 citations

Ludo Waltman, Thed N. van Leeuwen, Sarah de Rijcke

Visualizing the Computational Intelligence Field

IEEE Computational Intelligence Magazine(2006)10.1109/ci-m.2006.248043

N/A

0.449DataRank · unranked

19 citations

Ludo Waltman, Jan Den Berg, Uzay Kaymak, Nees Jan van Eck

Relations between the shape of a size-frequency distribution and the shape of a rank-frequency distribution

Information Processing & Management(2011)10.1016/j.ipm.2010.03.009

N/A

0.449DataRank · unranked

19 citations

Leo Egghe, Ludo Waltman

Towards a new crown indicator: An empirical analysis

arXiv (Cornell University)(2010)10.48550/arxiv.1004.1632

N/A

0.434DataRank · unranked

5 citations

Nees Jan van Eck, Thed N. van Leeuwen, Martijn S. Visser, Anthony F. J. van Raan, Ludo Waltman

On the correlation between bibliometric indicators and peer review: reply to Opthof and Leydesdorff

Scientometrics(2011)10.1007/s11192-011-0425-7

N/A

0.434DataRank · unranked

17 citations

Nees Jan van Eck, Thed N. van Leeuwen, Martijn S. Visser, Anthony F. J. van Raan, Ludo Waltman

An open approach for classifying research publications

(2024)10.59350/qc0px-76778

N/A

0.434DataRank · unranked

17 citations

Ludo Waltman, Nees Jan van Eck

Academic information retrieval using citation clusters: in-depth evaluation based on systematic reviews

Scientometrics(2023)10.1007/s11192-023-04681-x

N/A

0.425DataRank · unranked

16 citations

Suzan Verberne, Nees Jan van Eck, Ludo Waltman, Juan Pablo Bascur

Some comments on the question whether co‐occurrence data should be normalized

Journal of the American Society for Information Science and Technology(2007)10.1002/asi.20647

N/A

0.406DataRank · unranked

14 citations

Nees Jan van Eck, Ludo Waltman

Analyzing the activities of visitors of the Leiden Ranking website

Journal of Data and Information Science(2018)10.2478/jdis-2018-0015

N/A

0.396DataRank · unranked

13 citations

Ludo Waltman, Nees Jan van Eck

A Theoretical Analysis of Cooperative Behavior in Multi-agent Q-learning

2007 IEEE International Symposium on Approximate Dynamic Programming and Reinforcement Learning(2007)10.1109/adprl.2007.368173

N/A

0.388DataRank · unranked

10 citations

Uzay Kaymak, Ludo Waltman

Innovations in peer review in scholarly publishing: a meta-summary

SocArXiv (OSF Preprints)(2022)10.31235/osf.io/qaksd

N/A

0.370DataRank · unranked

6 citations

Johanna Brumberg, Wolfgang Kaltenbrunner, Stephen Pinfield, Ludo Waltman, Helen Buckley Woods

Which topics are best represented by science maps? An analysis of clustering effectiveness for citation and text similarity networks

Scientometrics(2025)10.1007/s11192-024-05218-6

N/A

0.368DataRank · unranked

9 citations

Suzan Verberne, Nees Jan van Eck, Ludo Waltman, Juan Pablo Bascur

Mapping the Management Discipline - A Bibliometric and Qualitative Synthesis

Academy of Management Proceedings(2014)10.5465/ambpp.2014.12315abstract

N/A

0.361DataRank · unranked

5 citations

Nees Jan van Eck, Ludo Waltman, Johannes Meuer, Will Felps

Research collaboration and the expanding science grid: Measuring globalization processes worldwide

arXiv (Cornell University)(2012)10.48550/arxiv.1203.4194

N/A

0.360DataRank · unranked

10 citations

Ludo Waltman, Nees Jan van Eck, Robert Tijssen

The detection of "hot regions" in the geography of science: A visualization approach by using density maps

arXiv (Cornell University)(2011)10.48550/arxiv.1102.3862

N/A

0.330DataRank · unranked

8 citations

Ludo Waltman, Lutz Bornmann

Sunlight not shadows: Double-anonymized peer review is not the progressive answer to status bias

OSF Preprints (OSF Preprints)(2022)10.31219/osf.io/fqb5c

N/A

0.314DataRank · unranked

4 citations

Tony Ross-Hellauer, Ludo Waltman, Serge P. J. M. Horbach

On the correlation between bibliometric indicators and peer review: Reply to Opthof and Leydesdorff

arXiv (Cornell University)(2011)10.48550/arxiv.1105.5316

N/A

0.314DataRank · unranked

3 citations

Nees Jan van Eck, Thed N. van Leeuwen, Martijn S. Visser, Anthony F. J. van Raan, Ludo Waltman

Preprint review services: Disrupting the scholarly communication landscape?

SocArXiv (OSF Preprints)(2023)10.31235/osf.io/8c6xm

N/A

0.309DataRank · unranked

6 citations

Narmin Rzayeva, Stephen Pinfield, Ludo Waltman, Susana Oliveira Henriques

Special section on performance-based research funding systems

Journal of Informetrics(2017)10.1016/j.joi.2017.05.015

N/A

0.292DataRank · unranked

6 citations

Ludo Waltman

Guidance for the reporting of bibliometric analyses: A scoping review

Quantitative Science Studies(2025)10.1162/qss.a.12

N/A

0.269DataRank · unranked

5 citations

Henry Liu, Mehvish Masood, Niveen Syed, Dimity Stephen, Ana Patricia Ayala +6 more

Crossref as a source of open bibliographic metadata

(2025)10.31222/osf.io/smxe5_v2

N/A

0.241DataRank · unranked

4 citations

Ludo Waltman, Nees Jan van Eck

Crossref metadata statistics

Zenodo (CERN European Organization for Nuclear Research)(2022)10.5281/zenodo.6803963

Top 62%

0.228DataRank

Top 62%2 citations

Ludo Waltman, Nees Jan van Eck

F1000 recommendations as a new data source for research evaluation: A comparison with citations

arXiv (Cornell University)(2013)10.48550/arxiv.1303.3875

Top 63%

0.220DataRank

Top 63%1 citations

Rodrigo Costas, Ludo Waltman

The experiences of COVID-19 preprint authors: A survey of researchers about publishing and receiving feedback on their work during the pandemic

Repositório da Universidade de Lisboa (University of Lisbon)(2022)10.31235/osf.io/d96yj

N/A

0.212DataRank · unranked

3 citations

Susana Oliveira Henriques, Stephen Pinfield, Ludo Waltman, Narmin Rzayeva

Introducing the Leiden Ranking Open Edition

(2024)10.59350/89wpz-hpz32

N/A

0.208DataRank · unranked

3 citations

Nees Jan van Eck, Mark Neijssel, Lucy Montgomery, Cameron Neylon, Bianca Kramer +4 more

Innovating peer review, reconfiguring scholarly communication: An analytical overview of ongoing peer review innovation activities

White Rose Research Online (University of Leeds, The University of Sheffield, University of York)(2022)10.31235/osf.io/8hdxu

N/A

0.208DataRank · unranked

3 citations

Stephen Pinfield, Ludo Waltman, Helen Buckley Woods, Johanna Brumberg, Wolfgang Kaltenbrunner

Understanding gender differences in science requires a diversity of perspectives, including controversial ones

Quantitative Science Studies(2021)10.1162/qss_e_00115

N/A

0.208DataRank · unranked

3 citations

Ludo Waltman

A Large-Scale Bibliometric Analysis of Global Climate Change Research Between 2001 and 2018

Research Square(2021)10.21203/rs.3.rs-759304/v1

N/A

0.208DataRank · unranked

3 citations

Ludo Waltman, Hui-Zhen Fu

Author response for "A multidimensional perspective on the citation impact of scientific publications"

(2020)10.1162/qss_a_00109/v2/response1

N/A

0.208DataRank · unranked

3 citations

Yi Bu, Ludo Waltman, Yong Huang

Some modifications to the SNIP journal impact indicator

arXiv (Cornell University)(2012)10.48550/arxiv.1209.0785

N/A

0.208DataRank · unranked

3 citations

Nees Jan van Eck, Thed N. van Leeuwen, Martijn S. Visser, Ludo Waltman

CWTSLeiden/networkanalysis: 1.0.0

Zenodo (CERN European Organization for Nuclear Research)(2018)10.5281/zenodo.1466831

N/A

0.208DataRank · unranked

3 citations

Ludo Waltman, Nees Jan van Eck, Vincent A. Traag

(FULL GUIDE) A Guide for Social Science Journal Editors on Easing into Open Science

OSF Preprints (OSF Preprints)(2023)10.31219/osf.io/hstcx

N/A

0.208DataRank · unranked

3 citations

Colin Elman, Amanda Kay Montoya, Barbara McGillivray, Chase H. Harrison, Crystal Nicole Steltenpohl +34 more

How to improve scientific peer review: Four schools of thought

White Rose Research Online (University of Leeds, The University of Sheffield, University of York)(2022)10.31235/osf.io/v8ghj

N/A

0.208DataRank · unranked

3 citations

Wolfgang Kaltenbrunner, Stephen Pinfield, Helen Buckley Woods, Ludo Waltman

The growth of open peer review

(2022)10.59350/5d1b3-hcs09

N/A

0.191DataRank · unranked

2 citations

Nees Jan van Eck, Ludo Waltman

Academic information retrieval using citation clusters: In-depth evaluation based on systematic reviews

arXiv (Cornell University)(2022)10.48550/arxiv.2207.03299

N/A

0.183DataRank · unranked

2 citations

Suzan Verberne, Nees Jan van Eck, Ludo Waltman, Juan Pablo Bascur

Adoption of Preprinting Across Scientific Disciplines and Geographical Regions (1991-2023)

SocArXiv (OSF Preprints)(2025)10.31235/osf.io/xdwc4_v1

N/A

0.168DataRank · unranked

2 citations

Stephen Pinfield, Ludo Waltman, Narmin Rzayeva

The preprint revolution - Implications for bibliographic databases

(2023)10.54900/fk7p22x-xydnebd

N/A

0.165DataRank · unranked

2 citations

Nees Jan van Eck, Ludo Waltman

Science of science

Bibliosphere(2021)10.20913/1815-3186-2021-1-25-42

N/A

0.165DataRank · unranked

2 citations

C. T. Bergstrom, James A. Evans, S. Milojević, A. M. Petersen, Roberta Sinatra +12 more

A comparison of citation-based clustering and topic modeling for science mapping

Scientometrics(2025)10.1007/s11192-025-05324-z

N/A

0.165DataRank · unranked

2 citations

Ludo Waltman, Qianqian Xie

Opening up the CWTS Leiden Ranking: Toward a decentralized and open model for data curation

(2024)10.59350/fn8b7-69107

N/A

0.163DataRank · unranked

1 citations

Ludo Waltman, Martijn S. Visser, Nees Jan van Eck

Towards a new crown indicator: Some theoretical considerations

arXiv (Cornell University)(2010)10.48550/arxiv.1003.2167

N/A

0.157DataRank · unranked

1 citations

Nees Jan van Eck, Thed N. van Leeuwen, Martijn S. Visser, Anthony F. J. van Raan, Ludo Waltman

The causal intricacies of studying gender bias in science

(2020)10.59350/dh1hs-zfn62

N/A

0.156DataRank · unranked

1 citations

Ludo Waltman, Vincent A. Traag

Rivals for the crown: Reply to Opthof and Leydesdorff

arXiv (Cornell University)(2010)10.48550/arxiv.1003.2113

N/A

0.144DataRank · unranked

1 citations

Thed N. van Leeuwen, Martijn S. Visser, Nees Jan van Eck, Ludo Waltman, Anthony F. J. van Raan

Preprints and open preprint review: a workshop on innovations in scholarly publishing

(2022)10.54900/c490m3r-r45gr6m

N/A

0.140DataRank · unranked

1 citations

Ludo Waltman, Jeroen Sondervan, Jeroen Bosman, Bianca Kramer

Scholarly Publishing and Peer-review in Times of Crisis: An Overview

The Evolving Health Information Landscape Symposium: Weill Cornell Medicine-Qatar, Distributed eLibrary(2022)10.5339/qproc.2022.ehil2021.7

N/A

0.136DataRank · unranked

1 citations

Ludo Waltman, Stephen Pinfield, Narmin Rzayeva, Susana Oliveira Henriques

An Open Knowledge Base for the Netherlands: Report of a Community Workshop

Zenodo (CERN European Organization for Nuclear Research)(2021)10.5281/zenodo.4893803

N/A

0.131DataRank · unranked

1 citations

Magchiel Bijsterbosch, Alastair Dunning, Bianca Kramer, Sarah de Rijcke, Clifford Tatum +2 more

A comparison of citation-based clustering and topic modeling for science mapping

arXiv (Cornell University)(2023)10.48550/arxiv.2309.06160

N/A

0.118DataRank · unranked

1 citations

Ludo Waltman, Qianqian Xie

Constructing bibliometric networks: A comparison between full and fractional counting

arXiv (Cornell University)(2016)10.48550/arxiv.1607.02452

N/A

0.117DataRank · unranked

1 citations

Ludo Waltman, Nees Jan van Eck, Antonio Perianes‐Rodríguez

Criteria for Bibliographic Databases in a Well-Functioning Scholarly Communication and Research Assessment Ecosystem

(2025)10.54900/d3ck1-skq19

N/A

0.107DataRank · unranked

1 citations

Caitlin Carter, Jonathon Alexis Coates, Kelly Denise Cobey, Katherine S. Corker, Elizabeth Gadd +8 more

Funding Covid-19 research: Insights from an exploratory analysis using open data infrastructures - Supplementary material

Zenodo (CERN European Organization for Nuclear Research)(2022)10.5281/zenodo.6112762

Top 78%

0.104DataRank

Top 78%1 citations

Nees Jan van Eck, Ludo Waltman, Alexis-Michel Mugabushaka

A mathematical analysis of the long-run behavior of genetic algorithms for social modeling

Soft Computing(2012)10.1007/s00500-012-0804-x

N/A

0.104DataRank · unranked

1 citations

Nees Jan van Eck, Ludo Waltman

Author response for "Funding Covid-19 research: Insights from an exploratory analysis using open data infrastructures"

(2022)10.1162/qss_a_00212/v2/response1

N/A

0.104DataRank · unranked

1 citations

Nees Jan van Eck, Ludo Waltman, Alexis-Michel Mugabushaka

Open Abstracts: Where are we?

Jamon Iberico(2020)10.5555/6vs5en6

N/A

0.104DataRank · unranked

1 citations

Ludo Waltman

To Preprint or Not to Preprint: Experience and Attitudes of Researchers Worldwide

27th International Conference on Science, Technology and Innovation Indicators (STI 2023)(2023)10.55835/6442f782b2b5580ba561406b

N/A

0.104DataRank · unranked

1 citations

Ludo Waltman, Rong Ni

A comparison of two techniques for bibliometric mapping: Multidimensional scaling and VOS

arXiv (Cornell University)(2010)10.48550/arxiv.1003.2551

N/A

0.104DataRank · unranked

1 citations

Ludo Waltman, Rommert Dekker, Jan van den Berg, Nees Jan van Eck

Source normalized indicators of citation impact: An overview of different approaches and an empirical comparison

arXiv (Cornell University)(2012)10.48550/arxiv.1208.6122

N/A

0.104DataRank · unranked

1 citations

Nees Jan van Eck, Ludo Waltman

To Preprint or Not to Preprint: Experience and Attitudes of Researchers Worldwide

Zenodo (CERN European Organization for Nuclear Research)(2023)10.5281/zenodo.7845666

Top 78%

0.104DataRank

Top 78%1 citations

Ludo Waltman, Rong Ni

Incentivising, excluding, and enduring: Insular policy feedback in Lithuanian research assessment

RePEc: Research Papers in Economics(2024)10.31235/osf.io/9yq38

N/A

0.104DataRank · unranked

1 citations

Vincent Larivière, Guus Dix, Ludo Waltman, Eleonora Dagiene

A Guide for Social Science Journal Editors on Easing into Open Science

Research Portal (King's College London)(2023)10.31219/osf.io/5dar8

N/A

0.104DataRank · unranked

1 citations

Colin Elman, Amanda Kay Montoya, Barbara McGillivray, Chase H. Harrison, Crystal Nicole Steltenpohl +34 more

The peer review system no longer works to guarantee academic rigour – a different approach is needed

(2024)10.64628/ab.gwjxqceuu

N/A

0.104DataRank · unranked

1 citations

Kathryn Zeiler, Ludo Waltman, Stephen Pinfield

A new methodology for constructing a publication-level classification system of science

arXiv (Cornell University)(2012)10.48550/arxiv.1203.0532

N/A

0.104DataRank · unranked

1 citations

Nees Jan van Eck, Ludo Waltman

Adoption of Preprinting Across Scientific Disciplines and Geographical Regions (1991-2023)

(2025)10.31235/osf.io/xdwc4_v2

N/A

0.104DataRank · unranked

1 citations

Stephen Pinfield, Ludo Waltman, Narmin Rzayeva

Large-Scale Analysis of the Accuracy of the Journal Classification Systems of Web of Science and Scopus

arXiv (Cornell University)(2015)10.48550/arxiv.1511.00735

N/A

0.104DataRank · unranked

1 citations

Ludo Waltman, Qi Wang

Funding Covid-19 research: Insights from an open data infrastructure

Leiden Repository (Leiden University)(2022)10.54900/rgrtzxx-nj4c28m-cef53

N/A

0.104DataRank · unranked

1 citations

Ludo Waltman, Nees Jan van Eck, Alexis-Michel Mugabushaka

The focal areas of CWTS

(2023)10.59350/p9jcz-ejc86

N/A

0DataRank · unranked

0 citations

Ludo Waltman, Ed Noyons, Sarah de Rijcke

Review of "Unreviewed science in the news: The evolution of preprint media coverage from 2014-2021"

(2023)10.21428/7ccec04a.e1d7801e

N/A

0DataRank · unranked

0 citations

Ludo Waltman

Scholarly communication in times of crisis: Supplementary data

Figshare(2021)10.6084/m9.figshare.17125529

Top 100%

0DataRank

Top 100%0 citations

Stephen Pinfield, Narmin Rzayeva, Susana Oliveira Henriques, Zhichao Fang, Johanna Brumberg +9 more

Assessment reform and publishing reform need to go hand in hand

(2025)10.59350/2pxgd-tj976

N/A

0DataRank · unranked

0 citations

Ludo Waltman

The state of preprinting in Europe and the Netherlands

(2025)10.59350/h5cx3-7yn67

N/A

0DataRank · unranked

0 citations

Narmin Rzayeva, Stephen Pinfield, Ludo Waltman

Crossref metadata statistics

Zenodo (CERN European Organization for Nuclear Research)(2025)10.5281/zenodo.4540586

Top 100%

0DataRank

Top 100%0 citations

Ludo Waltman, Nees Jan van Eck

Review for "Unreviewed science in the news: The evolution of preprint media coverage from 2014-2021"

(2023)10.1162/qss_a_00282/v1/review3

N/A

0DataRank · unranked

0 citations

Ludo Waltman

Large-scale comparison of bibliographic data sources: Scopus, Web of Science, Dimensions, Crossref, and Microsoft Academic

Zenodo (CERN European Organization for Nuclear Research)(2020)10.5281/zenodo.3837427

Top 100%

0DataRank

Top 100%0 citations

Nees Jan van Eck, Ludo Waltman, Martijn S. Visser

Data Set - Preprint review services: Disrupting the scholarly communication landscape?

Figshare(2025)10.6084/m9.figshare.24307312

Top 100%

0DataRank

Top 100%0 citations

Narmin Rzayeva, Stephen Pinfield, Ludo Waltman, Susana Oliveira Henriques

A recursive field-normalized bibliometric performance indicator: An application to the field of library and information science

arXiv (Cornell University)(2011)10.48550/arxiv.1105.3212

N/A

0DataRank · unranked

0 citations

Erjia Yan, Nees Jan van Eck, Ludo Waltman

A guide for social science journal editors on easing into open science

UNC Libraries(2024)10.17615/3q25-tz97

N/A

0DataRank · unranked

0 citations

Colin Elman, Amanda Kay Montoya, Barbara McGillivray, Charlotte R. Pennington, Chase H. Harrison +34 more

Open Abstracts: Where are we?

(2020)10.64000/94km7-h9a72

N/A

0DataRank · unranked

0 citations

Bianca Kramer, Ginny Hendricks, Bryan Vickery, Ludo Waltman

Practicing what we preach: Our journey toward open science

(2021)10.59350/bm0y4-9f982

N/A

0DataRank · unranked

0 citations

Ludo Waltman, Thed N. van Leeuwen

PeerReviewInventory_Dataset.xlsx

Figshare(2022)10.6084/m9.figshare.17161835

Top 100%

0DataRank

Top 100%0 citations

Stephen Pinfield, Ludo Waltman, Helen Buckley Woods, Johanna Brumberg, Wolfgang Kaltenbrunner

Review for "Categorisation of Scientometric Data in a Benfordian Context"

(2024)10.1162/qss_a_00361/v3/review1

Top 100%

0DataRank

Top 100%0 citations

Ludo Waltman

Review of "One-Year In: COVID-19 Research at the International Level in CORD-19 Data"

(2021)10.21428/7ccec04a.f98305d0

Top 100%

0DataRank

Top 100%0 citations

Ludo Waltman

Monitoring open access publishing of NWO funded research (data)

Zenodo (CERN European Organization for Nuclear Research)(2021)10.5281/zenodo.5056042

Top 100%

0DataRank

Top 100%0 citations

Ludo Waltman

To Preprint or Not to Preprint: A Global Researcher Survey

Zenodo (CERN European Organization for Nuclear Research)(2023)10.5281/zenodo.8183559

Top 100%

0DataRank

Top 100%0 citations

Ludo Waltman, Rong Ni

The experiences of COVID-19 preprint authors: A survey of researchers about publishing and receiving feedback on their work during the pandemic. Supplementary data

Figshare(2023)10.6084/m9.figshare.21076834

Top 100%

0DataRank

Top 100%0 citations

Susana Oliveira Henriques, Stephen Pinfield, Ludo Waltman, Narmin Rzayeva

Review of "Policies on Artificial Intelligence Chatbots Among Academic Publishers: A Cross-Sectional Audit"

(2024)10.21428/7ccec04a.709cd1a5

N/A

0DataRank · unranked

0 citations

Ludo Waltman

VOSviewer goes online! (Part 1)

(2021)10.59350/axfp8-qm864

N/A

0DataRank · unranked

0 citations

Ludo Waltman, Nees Jan van Eck

Review of How to improve scientific peer review: Four schools of thought

Zenodo (CERN European Organization for Nuclear Research)(2022)10.5281/zenodo.6589988

N/A

0DataRank · unranked

0 citations

Ludo Waltman

Peer Review Report For: The importance of software citation [version 1; peer review: 1 approved, 1 approved with reservations]

Faculty of 1000 Research Ltd(2020)10.5256/f1000research.29749.r73368

N/A

0DataRank · unranked

0 citations

Ludo Waltman

Review for "A bibliometric investigation into the literature of semantic reasoning in Internet of Things"

(2022)10.1002/itl2.401/v1/review1

Top 100%

0DataRank

Top 100%0 citations

Ludo Waltman

Crossref metadata statistics

Zenodo (CERN European Organization for Nuclear Research)(2023)10.5281/zenodo.8297545

Top 100%

0DataRank

Top 100%0 citations

Ludo Waltman, Nees Jan van Eck

The CWTS Leiden Ranking 2025 - More open, more inclusive, more informative

(2025)10.59350/afw5m-3g989

Top 100%

0DataRank

Top 100%0 citations

Rodrigo Costas, Mark Neijssel, Ed Noyons, Ludo Waltman, Martijn S. Visser +1 more

Doing science in times of crisis: Science studies perspectives on COVID-19 (1st & 2nd edition)

(2021)10.59350/zj0xx-8xt08

N/A

0DataRank · unranked

0 citations

Giovanni Colavizza, Ludo Waltman, Zohreh Zahedi, Grischa Fraumann

Peer Review #3 of "A systematic metadata harvesting workflow for analysing scientific networks (v0.1)"

(2021)10.7287/peerj-cs.421v0.1/reviews/3

Top 100%

0DataRank

Top 100%0 citations

Ludo Waltman

Characterizing in-text citations in scientific articles: A large-scale analysis

arXiv (Cornell University)(2017)10.48550/arxiv.1710.03094

N/A

0DataRank · unranked

0 citations

Nees Jan van Eck, Giovanni Colavizza, Ludo Waltman, Kevin W. Boyack

Innovation in scientific publishing and its implications for Crossref DOI registration practices - Request for input

(2025)10.64000/teqgg-zmd93

N/A

0DataRank · unranked

0 citations

André Brasil, Ludo Waltman

The CWTS Leiden Ranking 2025 - More open, more inclusive, more informative

(2025)10.59350/jvjy2-4ww95

Top 100%

0DataRank

Top 100%0 citations

Rodrigo Costas, Mark Neijssel, Ed Noyons, Ludo Waltman, Martijn S. Visser +1 more

Responsible research assessment requires open scholarly metadata

Zenodo (CERN European Organization for Nuclear Research)(2020)10.5281/zenodo.4021492

N/A

0DataRank · unranked

0 citations

Ludo Waltman

Intermediacy of publications

ISSI(2018)10.48550/arxiv.1812.08259

N/A

0DataRank · unranked

0 citations

Ludo Waltman, Vincent A. Traag, Nees Jan van Eck, Lovro Šubelj

Correction to ‘Intermediacy of publications’

Royal Society Open Science(2020)10.1098/rsos.201326

N/A

0DataRank · unranked

0 citations

Ludo Waltman, Vincent A. Traag, Nees Jan van Eck, Lovro Šubelj

Funding Covid-19 research: Insights from an exploratory analysis using open data infrastructures - Supplementary material

Zenodo (CERN European Organization for Nuclear Research)(2022)10.5281/zenodo.6805409

Top 100%

0DataRank

Top 100%0 citations

Nees Jan van Eck, Ludo Waltman, Alexis-Michel Mugabushaka

The relation between Eigenfactor, audience factor, and influence weight

arXiv (Cornell University)(2010)10.48550/arxiv.1003.2198

N/A

0DataRank · unranked

0 citations

Nees Jan van Eck, Ludo Waltman

A visual method for comparing article-level clustering approaches

Zenodo (CERN European Organization for Nuclear Research)(2022)10.5281/zenodo.6937100

N/A

0DataRank · unranked

0 citations

Ludo Waltman, Ismael Ràfols, Alfredo Yegros, Quianquian Xie

PathOS - D2.1 - D2.2 - Open Science Indicator Handbook

Zenodo (CERN European Organization for Nuclear Research)(2023)10.5281/zenodo.8305627

Top 100%

0DataRank

Top 100%0 citations

István Kárász, Thomas Klebel, Eva Kormann, Natalia Manola, Haris Papageorgiou +8 more

Peer Review Report For: Recognizing the value of software: a software citation guide [version 2; peer review: 2 approved]

Faculty of 1000 Research Ltd(2021)10.5256/f1000research.47168.r77167

N/A

0DataRank · unranked

0 citations

Ludo Waltman

Experimenting with open science practices at the STI 2023 conference

(2023)10.59350/h3f59-yxg43

N/A

0DataRank · unranked

0 citations

Rong Ni, Kwun Hang Lai, Marc Luwel, Biegzat Mulati, Ed Noyons +5 more

Review for "A bibliometric investigation into the literature of semantic reasoning in Internet of Things"

(2022)10.1002/itl2.401/v4/review1

Top 100%

0DataRank

Top 100%0 citations

Ludo Waltman

Review of "Recommendations from the RISRS Report: Reducing the Inadvertent Spread of Retracted Science"

(2021)10.21428/7ccec04a.d1905fa3

N/A

0DataRank · unranked

0 citations

Ludo Waltman

Bona Fide Journals - Creating a predatory-free academic publishing environment

Leiden Repository (Leiden University)(2021)10.59350/cbyyp-jpt74

N/A

0DataRank · unranked

0 citations

Ludo Waltman, Saskia de Vries, Nees Jan van Eck, Thed N. van Leeuwen, Leo Waaijers

Counting publications and citations: Is more always better?

arXiv (Cornell University)(2013)10.48550/arxiv.1301.4597

N/A

0DataRank · unranked

0 citations

Nees Jan van Eck, Paul Wouters, Ludo Waltman

The Initiative for Open Abstracts: Celebrating our first anniversary

(2021)10.59350/s2szz-e2r41

N/A

0DataRank · unranked

0 citations

Bianca Kramer, David M. Shotton, Ludo Waltman

Author Response: Preprint review services: Disrupting the scholarly communication landscape? (Round 1)

(2025)10.70744/metaror.14.1.ar

N/A

0DataRank · unranked

0 citations

Narmin Rzayeva, Stephen Pinfield, Ludo Waltman, Susana Oliveira Henriques

Funding Covid-19 research: Insights from an exploratory analysis using open data infrastructures - Supplementary material

Zenodo (CERN European Organization for Nuclear Research)(2022)10.5281/zenodo.6112761

Top 100%

0DataRank

Top 100%0 citations

Nees Jan van Eck, Ludo Waltman, Alexis-Michel Mugabushaka

To Preprint or Not to Preprint: A Global Researcher Survey

Zenodo (CERN European Organization for Nuclear Research)(2023)10.5281/zenodo.8185065

Top 100%

0DataRank

Top 100%0 citations

Ludo Waltman, Rong Ni

Peer Review Report For: National culture as a correlate of research output and impact [version 3; peer review: 2 approved]

Faculty of 1000 Research Ltd(2020)10.5256/f1000research.24613.r59689

N/A

0DataRank · unranked

0 citations

Ludo Waltman

Review for "Have public universities in Germany become more isomorphic? Methodology and empirical test, 1995–2020"

(2023)10.1162/qss_a_00340/v2/review1

N/A

0DataRank · unranked

0 citations

Ludo Waltman

Monitoring open access publishing of NWO funded research (2015-2021) data set

Zenodo (CERN European Organization for Nuclear Research)(2022)10.5281/zenodo.7041929

Top 100%

0DataRank

Top 100%0 citations

Wout S Lamers, Ludo Waltman

Crossref metadata statistics

OPAL (Open@LaTrobe) (La Trobe University)(2021)10.5281/zenodo.4719469

Top 100%

0DataRank

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Ludo Waltman, Nees Jan van Eck

An empirical analysis of the use of alphabetical authorship in scientific publishing

arXiv (Cornell University)(2012)10.48550/arxiv.1206.4863

N/A

0DataRank · unranked

0 citations

Ludo Waltman

Monitoring open access publishing of NWO funded research (2015-2021) data set

Zenodo (CERN European Organization for Nuclear Research)(2022)10.5281/zenodo.7041928

Top 100%

0DataRank

Top 100%0 citations

Wout S Lamers, Ludo Waltman

"Smart alone, brilliant together"

(2023)10.59350/4akjw-tf516

N/A

0DataRank · unranked

0 citations

Dan Rudmann, Leo Waaijers, Ludo Waltman, Anna van ‘t Veer, Thed N. van Leeuwen +1 more

The CWTS Leiden Ranking 2023

(2023)10.59350/cvrqg-6h370

N/A

0DataRank · unranked

0 citations

Ludo Waltman, Zeynep Anli, Dan Gibson, Mark Neijssel, Andrea Reyes Elizondo +5 more

Universality of citation distributions revisited

arXiv (Cornell University)(2011)10.48550/arxiv.1105.2934

N/A

0DataRank · unranked

0 citations

Nees Jan van Eck, Anthony F. J. van Raan, Ludo Waltman

Peer review uncertainty at the institutional level

STI 2018 Conference Proceedings(2018)10.6084/m9.figshare.7171796

N/A

0DataRank · unranked

0 citations

Marco Malgarini, Theodore J. Cicero, Scipione Sarlo, Ludo Waltman, Vincent A. Traag

Review for "Unreviewed science in the news: The evolution of preprint media coverage from 2014-2021"

(2023)10.1162/qss_a_00282/v2/review2

N/A

0DataRank · unranked

0 citations

Ludo Waltman

Dreaming at CWTS

(2022)10.59350/j8rtg-taf73

N/A

0DataRank · unranked

0 citations

Ludo Waltman, Ed Noyons

Peer Review Report For: National culture as a correlate of research performance and impact [version 2; peer review: 2 approved with reservations]

Faculty of 1000 Research Ltd(2019)10.5256/f1000research.22695.r54253

N/A

0DataRank · unranked

0 citations

Ludo Waltman

The Closer the Better: Similarity of Publication Pairs at Different Co-Citation Levels

arXiv (Cornell University)(2017)10.48550/arxiv.1707.03076

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Kevin W. Boyack, Nees Jan van Eck, Ludo Waltman, Giovanni Colavizza

Crossref metadata statistics

OPAL (Open@LaTrobe) (La Trobe University)(2021)10.5281/zenodo.4540587

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Ludo Waltman, Nees Jan van Eck

Field-normalized citation impact indicators and the choice of an appropriate counting method

ISSI(2015)10.48550/arxiv.1501.04431

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Nees Jan van Eck, Ludo Waltman

Mapping science using Microsoft Academic data

(2019)10.59350/egtcx-51934

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Ludo Waltman, Nees Jan van Eck

Q&A about Wiley's decision to open its abstracts

(2022)10.59350/h2awx-zkr97

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Bianca Kramer, Ludo Waltman

Monitoring Open Access publishing of NWO-funded research (2015-2021)

Zenodo (CERN European Organization for Nuclear Research)(2022)10.5281/zenodo.7041897

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Wout S Lamers, Ludo Waltman

On the proper understanding of the limiting behavior of generalizations of the h- and g-indices

Journal of Informetrics(2009)10.1016/j.joi.2009.02.002

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Ludo Waltman, Nees Jan van Eck

Assessment reform and publishing reform need to go hand in hand

(2025)10.59350/ayf48-jgm89

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Ludo Waltman

Funding Covid-19 research: Insights from an open data infrastructure

(2022)10.54900/yh7pg-j1b71

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Ludo Waltman, Nees Jan van Eck, Alexis-Michel Mugabushaka

Innovation in scientific publishing and its implications for Crossref DOI registration practices - Request for input

(2025)10.64000/76jhx-x7s23

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André Brasil, Ludo Waltman

The Journal Observatory – Connecting information on scholarly communication

27th International Conference on Science, Technology and Innovation Indicators (STI 2023)(2023)10.55835/644302d78264b1bf681c4ebc

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Nees Jan van Eck, Ludo Waltman, Tony Ross-Hellauer, Serge P. J. M. Horbach, Bram van den Boomen

Constructing models of academic funding system: relation between the amount of funding and the efficiency

Zenodo (CERN European Organization for Nuclear Research)(2021)10.5281/zenodo.8143367

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Vincent A. Traag, Ludo Waltman, Lai Kwun Hang

Systematize information on journal policies and practices - A call to action

(2020)10.59350/fg1g0-9xm51

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Jessica K. Polka, Tony Ross-Hellauer, Ludo Waltman, Serge P. J. M. Horbach, Willem Halffman

Rethinking Peer Review: Enhancing Reliability in Scholarly Publishing

Rethinking Peer Review: Enhancing Reliability in Scholarly Publishing(2025)10.14293/ease.2025.006

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Michael Thelwall, Ludo Waltman, Bahar Mehmani, Laura Sheard, Jadranka Stojanovski

Why openly available abstracts are important — overview of the current state of affairs

(2020)10.59350/4r5hn-4db81

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Bianca Kramer, Ludo Waltman, Aaron Tay

Open research information for responsible research assessment

Publication Database GFZ (GFZ German Research Centre for Geosciences)(2021)10.5281/zenodo.5018532

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Ludo Waltman

The Initiative for Open Abstracts: Celebrating our first anniversary

(2021)10.59350/e9fcj-gfv88

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Bianca Kramer, David M. Shotton, Ludo Waltman

A large-scale bibliometric analysis of global climate change research between 2001 and 2018

arXiv (Cornell University)(2021)10.48550/arxiv.2107.08214

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Ludo Waltman, Hui-Zhen Fu

Making bibliometric reporting more transparent and consistent: Participants needed for pilot testing of GLOBAL

(2025)10.59350/h16nz-g0c40

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Dimity Stephen, David Moher, Ludo Waltman, Stefanie Haustein, Jeremy Y. Ng

Peer Review Report For: National culture as a correlate of research impact and productivity [version 1; peer review: 2 approved with reservations]

Faculty of 1000 Research Ltd(2019)10.5256/f1000research.20000.r46347

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Ludo Waltman

CitNetExplorer: A new software tool for analyzing and visualizing citation networks

arXiv (Cornell University)(2014)10.48550/arxiv.1404.5322

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Ludo Waltman, Nees Jan van Eck

A systematic empirical comparison of different approaches for normalizing citation impact indicators

arXiv (Cornell University)(2013)10.48550/arxiv.1301.4941

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Nees Jan van Eck, Ludo Waltman

To Preprint or Not to Preprint: A Global Researcher Survey

Zenodo (CERN European Organization for Nuclear Research)(2023)10.5281/zenodo.7845665

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Ludo Waltman, Rong Ni

Review for "Have public universities in Germany become more isomorphic? Methodology and empirical test, 1995–2020"

(2024)10.1162/qss_a_00340/v3/review1

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Ludo Waltman

Introducing the Initiative for Open Abstracts (I4OA)

Zenodo (CERN European Organization for Nuclear Research)(2020)10.5281/zenodo.4047761

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Ginny Hendricks, Bianca Kramer, Vincent Larivière, Catriona J. MacCallum, Cameron Neylon +8 more

Review for "Categorisation of Scientometric Data in a Benfordian Context"

(2024)10.1162/qss_a_00361/v2/review2

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Ludo Waltman

Review for "A bibliometric investigation into the literature of semantic reasoning in Internet of Things"

(2022)10.1002/itl2.401/v3/review1

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Ludo Waltman

The Journal Observatory - Connecting information on scholarly communication

(2023)10.59350/gpq75-3hh53

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Nees Jan van Eck, Ludo Waltman, Tony Ross-Hellauer, Serge P. J. M. Horbach, Bram van den Boomen

Advancing our Understanding of Systematic Manipulation & Paper Mills: Wiley & CWTS Partnership

(2025)10.59350/cr9ah-sxj73

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Stephen Pinfield, Mike Streeter, Ludo Waltman, Catriona J. MacCallum, Wolfgang Kaltenbrunner

A first step in quantifying disagreement across science

(2022)10.59350/7wn23-b4f60

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Vincent Larivière, Cassidy R. Sugimoto, Nees Jan van Eck, Ludo Waltman, Dakota Murray +2 more

Incentivising, excluding, and enduring: insular policy feedback in Lithuanian research assessment

Science and Public Policy(2026)10.1093/scipol/scaf093

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Vincent Larivière, Guus Dix, Ludo Waltman, Eleonora Dagiene

Peer Review Report For: Bibliometric analysis on workplace cyberbullying: study protocol [version 1; peer review: 2 not approved]

Faculty of 1000 Research Ltd(2021)10.5256/f1000research.54671.r94289

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Ludo Waltman

The CWTS Leiden Ranking 2020

(2020)10.59350/8b81d-ksv72

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Zeynep Anli, Mark Neijssel, Andrea Reyes Elizondo, Nees Jan van Eck, Clara Calero‐Medina +2 more

Crossref as a source of open bibliographic metadata for preprints

(2025)10.59350/te702-2ya75

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Ludo Waltman, Nees Jan van Eck

Introducing the CWTS knowledge agenda 2023-2028

(2023)10.59350/vcymz-8sh70

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Ludo Waltman, Ed Noyons, Sarah de Rijcke

Review for "A bibliometric investigation into the literature of semantic reasoning in Internet of Things"

(2022)10.1002/itl2.401/v2/review2

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Ludo Waltman

Review of "Global research trends in stem cells for tendon from 1991 to 2020: a bibliometric and visualized study"

(2021)10.21428/7ccec04a.6e1c979f

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Ludo Waltman

Comparing bibliographic data sources: Q&A

(2020)10.59350/c23x6-ypc92

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Nees Jan van Eck, Ludo Waltman, Martijn S. Visser

Ludo Waltman

Indexed papers

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