Ludo Waltman
Orcid: 0000-0001-8249-1752Affiliations:
- Leiden University, Centre for Science and Technology Studies (CWTS), The Netherlands
According to our database1,
Ludo Waltman
authored at least 106 papers
between 2005 and 2024.
Collaborative distances:
Collaborative distances:
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Online presence:
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on zbmath.org
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on cwts.nl
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on twitter.com
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on orcid.org
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on dl.acm.org
On csauthors.net:
Bibliography
2024
J. Assoc. Inf. Sci. Technol., June, 2024
Which topics are best represented by science maps? An analysis of clustering effectiveness for citation and text similarity networks.
CoRR, 2024
2023
Learn. Publ., July, 2023
Academic information retrieval using citation clusters: in-depth evaluation based on systematic reviews.
Scientometrics, May, 2023
Retraction of Predatory publishing in Scopus: evidence on cross-country differences lacks justification.
Scientometrics, February, 2023
CoRR, 2023
2022
Quant. Sci. Stud., 2022
Funding COVID-19 research: Insights from an exploratory analysis using open data infrastructures.
Quant. Sci. Stud., 2022
Innovating peer review, reconfiguring scholarly communication: an analytical overview of ongoing peer review innovation activities.
J. Documentation, 2022
2021
Understanding gender differences in science requires a diversity of perspectives, including controversial ones.
Quant. Sci. Stud., 2021
Large-scale comparison of bibliographic data sources: Scopus, Web of Science, Dimensions, Crossref, and Microsoft Academic.
Quant. Sci. Stud., 2021
A multidimensional framework for characterizing the citation impact of scientific publications.
Quant. Sci. Stud., 2021
Algorithmic labeling in hierarchical classifications of publications: Evaluation of bibliographic fields and term weighting approaches.
J. Assoc. Inf. Sci. Technol., 2021
A large-scale bibliometric analysis of global climate change research between 2001 and 2018.
CoRR, 2021
CoRR, 2021
2020
A principled methodology for comparing relatedness measures for clustering publications.
Quant. Sci. Stud., 2020
Browsing Citation Clusters for Academic Literature Search: A Simulation Study with Systematic Reviews.
Proceedings of the 10th International Workshop on Bibliometric-enhanced Information Retrieval co-located with 42nd European Conference on Information Retrieval, 2020
2019
Large-scale comparison of bibliographic data sources: Web of Science, Scopus, Dimensions, and Crossref.
Proceedings of the 17th International Conference on Scientometrics and Informetrics, 2019
Persistence of journal hierarchy in open access publishing.
Proceedings of the 17th International Conference on Scientometrics and Informetrics, 2019
Intermediacy of publications.
Proceedings of the 17th International Conference on Scientometrics and Informetrics, 2019
Measuring disagreement in science.
Proceedings of the 17th International Conference on Scientometrics and Informetrics, 2019
Variations in citation practices across the scientific landscape: Analysis based on a large full-text corpus.
Proceedings of the 17th International Conference on Scientometrics and Informetrics, 2019
Quantifying the long-term influence of scientific publications.
Proceedings of the 17th International Conference on Scientometrics and Informetrics, 2019
A multidimensional perspective on the citation impact of scientific publications.
Proceedings of the 17th International Conference on Scientometrics and Informetrics, 2019
An Interactive Visual Tool for Scientific Literature Search: Proposal and Algorithmic Specification.
Proceedings of the 8th International Workshop on Bibliometric-enhanced Information Retrieval (BIR 2019) co-located with the 41st European Conference on Information Retrieval (ECIR 2019), 2019
Proceedings of the Springer Handbook of Science and Technology Indicators., 2019
2018
J. Informetrics, 2018
J. Data Inf. Sci., 2018
The Closer the Better: Similarity of Publication Pairs at Different Cocitation Levels.
J. Assoc. Inf. Sci. Technol., 2018
CoRR, 2018
Exploration of Reproducibility Issues in Scientometric Research Part 2: Conceptual Reproducibility.
CoRR, 2018
Exploration of reproducibility issues in scientometric research Part 1: Direct reproducibility.
CoRR, 2018
2017
Scientometrics, 2017
Use of the journal impact factor for assessing individual articles need not be wrong.
CoRR, 2017
The Closer the Better: Similarity of Publication Pairs at Different Co-Citation Levels.
CoRR, 2017
Using full-text data to create improved term maps.
Proceedings of the 16th International Conference on Scientometrics and Informetrics, 2017
Accuracy of citation data in Web of Science and Scopus.
Proceedings of the 16th International Conference on Scientometrics and Informetrics, 2017
Exploring the Similarity of Articles Co-cited at Different Levels.
Proceedings of the 16th International Conference on Scientometrics and Informetrics, 2017
Reference behavior in the full text of scientific articles: A large-scale analysis.
Proceedings of the 16th International Conference on Scientometrics and Informetrics, 2017
2016
Large-scale analysis of the accuracy of the journal classification systems of Web of Science and Scopus.
J. Informetrics, 2016
The elephant in the room: The problem of quantifying productivity in evaluative scientometrics.
J. Informetrics, 2016
J. Informetrics, 2016
J. Informetrics, 2016
Constructing bibliometric networks: A comparison between full and fractional counting.
J. Informetrics, 2016
2015
Field-normalized citation impact indicators and the choice of an appropriate counting method.
J. Informetrics, 2015
J. Informetrics, 2015
Field-normalized citation impact indicators using algorithmically constructed classification systems of science.
J. Informetrics, 2015
Clustering scientific publications based on citation relations: A systematic comparison of different methods.
CoRR, 2015
2014
J. Informetrics, 2014
The correlation between citation-based and expert-based assessments of publication channels: SNIP and SJR vs. Norwegian quality assessments.
J. Informetrics, 2014
F1000 Recommendations as a Potential New Data Source for Research Evaluation: A Comparison With Citations.
J. Assoc. Inf. Sci. Technol., 2014
Exploring the relationship between the Engineering and Physical Sciences and the Health and Life Sciences by advanced bibliometric methods.
CoRR, 2014
Systematic Retrieval of Scientific Literature based on Citation Relations: Introducing the CitNetExplorer Tool.
Proceedings of the First Workshop on Bibliometric-enhanced Information Retrieval co-located with 36th European Conference on Information Retrieval (ECIR 2014), 2014
2013
Source normalized indicators of citation impact: an overview of different approaches and an empirical comparison.
Scientometrics, 2013
A systematic empirical comparison of different approaches for normalizing citation impact indicators.
J. Informetrics, 2013
J. Assoc. Inf. Sci. Technol., 2013
F1000 recommendations as a new data source for research evaluation: A comparison with citations
CoRR, 2013
CoRR, 2013
2012
A mathematical analysis of the long-run behavior of genetic algorithms for social modeling.
Soft Comput., 2012
An empirical analysis of the use of alphabetical authorship in scientific publishing.
J. Informetrics, 2012
A new methodology for constructing a publication-level classification system of science.
J. Assoc. Inf. Sci. Technol., 2012
J. Assoc. Inf. Sci. Technol., 2012
Citation analysis may severely underestimate the impact of clinical research as compared to basic research
CoRR, 2012
Research collaboration and the expanding science grid: Measuring globalization processes worldwide
CoRR, 2012
2011
A recursive field-normalized bibliometric performance indicator: an application to the field of library and information science.
Scientometrics, 2011
On the correlation between bibliometric indicators and peer review: reply to Opthof and Leydesdorff.
Scientometrics, 2011
J. Informetrics, 2011
The detection of "hot regions" in the geography of science - A visualization approach by using density maps.
J. Informetrics, 2011
Relations between the shape of a size-frequency distribution and the shape of a rank-frequency distribution.
Inf. Process. Manag., 2011
2010
Scientometrics, 2010
J. Informetrics, 2010
J. Assoc. Inf. Sci. Technol., 2010
A comparison of two techniques for bibliometric mapping: Multidimensional scaling and VOS.
J. Assoc. Inf. Sci. Technol., 2010
2009
J. Informetrics, 2009
On the proper understanding of the limiting behavior of generalizations of the h- and g-indices.
J. Informetrics, 2009
How to normalize cooccurrence data? An analysis of some well-known similarity measures.
J. Assoc. Inf. Sci. Technol., 2009
2008
Some comments on the journal weighted impact factor proposed by Habibzadeh and Yadollahie.
J. Informetrics, 2008
J. Assoc. Inf. Sci. Technol., 2008
2007
J. Assoc. Inf. Sci. Technol., 2007
Int. J. Uncertain. Fuzziness Knowl. Based Syst., 2007
2006
IEEE Comput. Intell. Mag., 2006
Proceedings of the Advances in Data Analysis, 2006
Proceedings of the IEEE International Conference on Fuzzy Systems, 2006
2005
Proceedings of the IEEE International Conference on Fuzzy Systems, 2005
Proceedings of the Joint 4th Conference of the European Society for Fuzzy Logic and Technology and the 11th Rencontres Francophones sur la Logique Floue et ses Applications, 2005
Proceedings of the 16th International Workshop on Database and Expert Systems Applications (DEXA 2005), 2005