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Computer Science
Netherlands
2025

D-Index & Metrics

Computer Science

D-Index
57
Citations
57875
World Ranking
3714
National Ranking
41

Ludo Waltman publication distribution in Computer Science in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Computer Science in 2026. The highlighted bar marks where Ludo Waltman sits on this spectrum.

32–41 publications: 7 scientists 42–51 publications: 22 scientists 52–61 publications: 82 scientists 62–71 publications: 134 scientists 72–81 publications: 250 scientists 82–91 publications: 324 scientists 92–101 publications: 421 scientists 102–111 publications: 420 scientists 112–121 publications: 497 scientists 122–131 publications: 544 scientists 132–141 publications: 555 scientists 142–151 publications: 609 scientists 152–161 publications: 560 scientists 162–171 publications: 534 scientists 172–181 publications: 556 scientists 182–191 publications: 583 scientists 192–201 publications: 519 scientists 202–211 publications: 508 scientists 212–221 publications: 490 scientists 222–231 publications: 437 scientists 232–241 publications: 424 scientists 242–251 publications: 408 scientists 252–261 publications: 378 scientists 262–271 publications: 300 scientists 272–281 publications: 335 scientists 282–291 publications: 320 scientists 292–301 publications: 293 scientists 302–311 publications: 250 scientists 312–321 publications: 238 scientists 322–331 publications: 206 scientists 332–341 publications: 209 scientists 342–351 publications: 208 scientists 352–361 publications: 162 scientists 362–371 publications: 176 scientists 372–381 publications: 127 scientists 382–391 publications: 158 scientists 392–401 publications: 128 scientists 402–411 publications: 104 scientists 412–421 publications: 94 scientists 422–431 publications: 99 scientists 432–441 publications: 83 scientists 442–451 publications: 108 scientists 452–461 publications: 73 scientists 462–471 publications: 77 scientists 472–481 publications: 69 scientists 482–491 publications: 84 scientists 492–501 publications: 62 scientists 502–511 publications: 54 scientists 512–521 publications: 57 scientists 522–531 publications: 51 scientists 532–541 publications: 51 scientists 542–551 publications: 32 scientists 552–561 publications: 38 scientists 562–571 publications: 28 scientists 572–581 publications: 43 scientists 582–591 publications: 33 scientists 592–601 publications: 41 scientists 602–611 publications: 32 scientists 612–621 publications: 28 scientists 622–631 publications: 25 scientists 632–641 publications: 27 scientists 642–651 publications: 17 scientists 652–661 publications: 20 scientists 662–671 publications: 17 scientists 672–681 publications: 15 scientists 682–691 publications: 14 scientists 692–701 publications: 21 scientists 702–711 publications: 13 scientists 712–721 publications: 12 scientists 722–731 publications: 19 scientists 732–741 publications: 14 scientists 742–751 publications: 12 scientists 752–761 publications: 10 scientists 762–771 publications: 10 scientists 772–781 publications: 11 scientists 782–791 publications: 10 scientists 792–801 publications: 11 scientists 802–811 publications: 8 scientists 812–821 publications: 8 scientists 822–831 publications: 7 scientists 832–841 publications: 11 scientists 842–851 publications: 10 scientists 852–861 publications: 5 scientists 862–871 publications: 9 scientists 872–881 publications: 4 scientists 882–891 publications: 6 scientists 892–901 publications: 3 scientists 902–911 publications: 6 scientists 912–921 publications: 3 scientists 922–931 publications: 2 scientists 932–941 publications: 2 scientists 942–951 publications: 2 scientists 952–961 publications: 3 scientists 962–971 publications: 3 scientists 972–981 publications: 3 scientists 982–990 publications: 5 scientists 991+ publications: 100 scientists
32 publications 991+

This scientist: 150 publications — 27th percentile

27% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 991 publications or more.

Ludo Waltman D-index placement in Computer Science in 2026

The chart shows the D-index (discipline H-index) distribution of Computer Science scientists ranked by Research.com in 2026. The highlighted bar marks where Ludo Waltman sits on this spectrum.

30–31 D-Index: 879 scientists 32–33 D-Index: 984 scientists 34–35 D-Index: 918 scientists 36–37 D-Index: 990 scientists 38–39 D-Index: 969 scientists 40–41 D-Index: 907 scientists 42–43 D-Index: 821 scientists 44–45 D-Index: 765 scientists 46–47 D-Index: 689 scientists 48–49 D-Index: 543 scientists 50–51 D-Index: 543 scientists 52–53 D-Index: 517 scientists 54–55 D-Index: 500 scientists 56–57 D-Index: 458 scientists 58–59 D-Index: 400 scientists 60–61 D-Index: 337 scientists 62–63 D-Index: 308 scientists 64–65 D-Index: 292 scientists 66–67 D-Index: 249 scientists 68–69 D-Index: 213 scientists 70–71 D-Index: 192 scientists 72–73 D-Index: 189 scientists 74–75 D-Index: 165 scientists 76–77 D-Index: 139 scientists 78–79 D-Index: 119 scientists 80–81 D-Index: 121 scientists 82–83 D-Index: 113 scientists 84–85 D-Index: 88 scientists 86–87 D-Index: 87 scientists 88–89 D-Index: 75 scientists 90–91 D-Index: 69 scientists 92–93 D-Index: 57 scientists 94–95 D-Index: 46 scientists 96–97 D-Index: 38 scientists 98–99 D-Index: 34 scientists 100–101 D-Index: 36 scientists 102–103 D-Index: 27 scientists 104–105 D-Index: 37 scientists 106–107 D-Index: 18 scientists 108–109 D-Index: 31 scientists 110–111 D-Index: 19 scientists 112–113 D-Index: 16 scientists 114–115 D-Index: 12 scientists 116–117 D-Index: 20 scientists 118–119 D-Index: 15 scientists 120–121 D-Index: 5 scientists 122–123 D-Index: 20 scientists 124–125 D-Index: 8 scientists 126–127 D-Index: 5 scientists 128–129 D-Index: 7 scientists 130 D-Index: 3 scientists 131+ D-Index: 98 scientists
30 D-Index 131+

This scientist: 57 D-Index — 74th percentile

74% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 131 D-Index or more.

Research.com Recognitions

  • 2025 - Research.com Computer Science in Netherlands Leader Award
  • 2022 - Research.com Computer Science in Netherlands Leader Award

Overview

Ludo Waltman is affiliated with Leiden University in the Netherlands. Their research primarily centers on decision sciences, with a significant focus on scientometrics and bibliometrics research. This scientist's work spans several subfields, including statistics, probability and uncertainty, information systems and management, information systems, sociology and political science, and molecular biology.

The main topics of Ludo Waltman's research include:

  • Scientometrics and bibliometrics research
  • Academic publishing and open access
  • Research data management practices
  • Misinformation and its impacts
  • Data-driven disease surveillance
  • Complex network analysis techniques
  • Biomedical text mining and ontologies

The scientist has contributed to numerous publications in various venues. Frequent publication locations include:

  • Zenodo (CERN European Organization for Nuclear Research)
  • Quantitative Science Studies
  • arXiv (Cornell University)
  • Scientometrics
  • bioRxiv (Cold Spring Harbor Laboratory)

Selected recent papers authored or co-authored by Ludo Waltman include:

  • Large-scale comparison of bibliographic data sources: Scopus, Web of Science, Dimensions, Crossref, and Microsoft Academic (2021), published in Quantitative Science Studies
  • A large-scale bibliometric analysis of global climate change research between 2001 and 2018 (2022), published in Climatic Change
  • A scientometric overview of CORD-19 (2021), published in PLoS ONE
  • How to improve scientific peer review: Four schools of thought (2023), published in Learned Publishing
  • Archivio istituzionale della ricerca (Alma Mater Studiorum Università di Bologna) (2020), publication title not provided

Frequently collaborating co-authors include:

  • Nees Jan van Eck
  • Vincent Traag
  • Vincent Larivière
  • Wout Lamers
  • Rong Ni

Best Publications

  • Software survey: VOSviewer, a computer program for bibliometric mapping.

    Nees Jan van Eck;Nees Jan van Eck;Ludo Waltman;Ludo Waltman

  • From Louvain to Leiden: guaranteeing well-connected communities

    Vincent Traag;Ludo Waltman;Nees Jan van Eck

  • From Louvain to Leiden: guaranteeing well-connected communities

    V. A. Traag;L. Waltman;N. J. van Eck

  • Visualizing Bibliometric Networks

    Nees Jan van Eck;Ludo Waltman

  • Bibliometrics: The Leiden Manifesto for research metrics

    Diana Hicks;Paul Wouters;Ludo Waltman;Sarah de Rijcke

  • Citation-based clustering of publications using CitNetExplorer and VOSviewer

    Nees Jan Eck;Ludo Waltman

  • A unified approach to mapping and clustering of bibliometric networks

    Ludo Waltman;Nees Jan van Eck;Ed C.M. Noyons

  • Science of science

    Santo Fortunato;Carl T. Bergstrom;Katy Börner;James A. Evans

  • A review of the literature on citation impact indicators

    Ludo Waltman

  • Constructing bibliometric networks: A comparison between full and fractional counting

    Antonio Perianes-Rodriguez;Ludo Waltman;Nees Jan van Eck

  • A smart local moving algorithm for large-scale modularity-based community detection

    Ludo Waltman;Nees Jan van Eck

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

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

  • Text mining and visualization using VOSviewer

    Nees Jan van Eck;Ludo Waltman

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

    Nees Jan van Eck;Ludo Waltman

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

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

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

    Ludo Waltman;Nees Jan van Eck

  • VOS: A New Method for Visualizing Similarities between Objects

    Nees Jan van Eck;Ludo Waltman

  • How to normalize cooccurrence dataq An analysis of some well-known similarity measures

    Nees Jan van Eck;Ludo Waltman

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

    Ludo Waltman;Clara Calero-Medina;Joost Kosten;Ed C.M. Noyons

  • Towards a new crown indicator: Some theoretical considerations

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

Frequent Co-Authors

Nees Jan van Eck
Nees Jan van Eck Leiden University
Uzay Kaymak
Uzay Kaymak Eindhoven University of Technology
Thed N. van Leeuwen
Thed N. van Leeuwen Leiden University
Anthony F. J. van Raan
Anthony F. J. van Raan Leiden University
Paul Wouters
Paul Wouters Leiden University
Rommert Dekker
Rommert Dekker Erasmus University Rotterdam
Kevin W. Boyack
Kevin W. Boyack SciTech Strategies
Vincent Larivière
Vincent Larivière University of Montreal
Rodrigo Costas
Rodrigo Costas Leiden University
Erjia Yan
Erjia Yan Drexel University

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