Ludo Waltman - RankMe

153 papers B 2Journal 128Unranked 22

Year	Rank	Type	Title / Venue / Authors
2025	J	`jnl`	A comparison of citation-based clustering and topic modeling for science mapping. Scientometrics Qianqian Xie, Ludo Waltman
2025	J	`jnl`	Which topics are best represented by science maps? An analysis of clustering effectiveness for citation and text similarity networks. Scientometrics Juan Pablo Bascur, Suzan Verberne, Nees Jan van Eck, Ludo Waltman
2024	J	`jnl`	To preprint or not to preprint: A global researcher survey. J. Assoc. Inf. Sci. Technol. Rong Ni, Ludo Waltman
2024	J	`jnl`	Which topics are best represented by science maps? An analysis of clustering effectiveness for citation and text similarity networks. CoRR Juan Pablo Bascur, Suzan Verberne, Nees Jan van Eck, Ludo Waltman
2024	—	`conf`	Which topics are visualized by science maps? A topic-driven clustering effectiveness analysis. BIR/IR4U2 Juan Pablo Bascur, Suzan Verberne, Nees Jan van Eck, Ludo Waltman
2023	J	`jnl`	A comparison of citation-based clustering and topic modeling for science mapping. CoRR Qianqian Xie, Ludo Waltman
2023	J	`jnl`	Academic information retrieval using citation clusters: in-depth evaluation based on systematic reviews. Scientometrics Juan Pablo Bascur, Suzan Verberne, Nees Jan van Eck, Ludo Waltman
2023	J	`jnl`	How to improve scientific peer review: Four schools of thought. Learn. Publ. Ludo Waltman, Wolfgang Kaltenbrunner, Stephen Pinfield, Helen Buckley Woods
2023	J	`jnl`	Retraction of Predatory publishing in Scopus: evidence on cross-country differences lacks justification. Scientometrics Giovanni Abramo, Isidro F. Aguillo, Dag W. Aksnes, Kevin W. Boyack, Quentin L. Burrell, Juan Miguel Campanario, Zaida Chinchilla-Rodríguez, Rodrigo Costas, Ciriaco Andrea D'Angelo, Anne-Wil Harzing, Hamid R. Jamali, Vincent Larivière, Loet Leydesdorff, Marc Luwel, Ben Martin, Philipp Mayr, Katherine W. McCain, Isabella Peters, Ismael Ràfols, Nicolás Robinson-García, Torben Schubert, Henry Small, Cassidy R. Sugimoto, Mike Thelwall, Peter van den Besselaar, Thed N. van Leeuwen, Ludo Waltman
2022	J	`jnl`	Academic information retrieval using citation clusters: In-depth evaluation based on systematic reviews. CoRR Juan Pablo Bascur, Suzan Verberne, Nees Jan van Eck, Ludo Waltman
2022	J	`jnl`	Causal foundations of bias, disparity and fairness. CoRR Vincent A. Traag, Ludo Waltman
2022	J	`jnl`	Funding COVID-19 research: Insights from an exploratory analysis using open data infrastructures. Quant. Sci. Stud. Alexis-Michel Mugabushaka, Nees Jan van Eck, Ludo Waltman
2022	J	`jnl`	Funding Covid-19 research: Insights from an exploratory analysis using open data infrastructures. CoRR Alexis-Michel Mugabushaka, Nees Jan van Eck, Ludo Waltman
2022	J	`jnl`	Innovating peer review, reconfiguring scholarly communication: an analytical overview of ongoing peer review innovation activities. J. Documentation Wolfgang Kaltenbrunner, Stephen Pinfield, Ludo Waltman, Helen Buckley Woods, Johanna Brumberg
2022	—	`conf`	Let's move beyond citations! WOOC Ludo Waltman
2022	J	`jnl`	The challenges of scientometric studies of predatory publishing. Quant. Sci. Stud. Ludo Waltman, Vincent Larivière
2021	J	`jnl`	A large-scale bibliometric analysis of global climate change research between 2001 and 2018. CoRR Hui-Zhen Fu, Ludo Waltman
2021	J	`jnl`	A multidimensional framework for characterizing the citation impact of scientific publications. Quant. Sci. Stud. Yi Bu, Ludo Waltman, Yong Huang
2021	J	`jnl`	Algorithmic labeling in hierarchical classifications of publications: Evaluation of bibliographic fields and term weighting approaches. J. Assoc. Inf. Sci. Technol. Peter Sjögårde, Per Ahlgren, Ludo Waltman
2021	J	`jnl`	Gender differences in scientific careers: A large-scale bibliometric analysis. CoRR Hanjo D. Boekhout, Inge van der Weijden, Ludo Waltman
2021	J	`jnl`	Large-scale comparison of bibliographic data sources: Scopus, Web of Science, Dimensions, Crossref, and Microsoft Academic. Quant. Sci. Stud. Martijn S. Visser, Nees Jan van Eck, Ludo Waltman
2021	J	`jnl`	Measuring Disagreement in Science. CoRR Wout S. Lamers, Kevin W. Boyack, Vincent Larivière, Cassidy R. Sugimoto, Nees Jan van Eck, Ludo Waltman, Dakota S. Murray
2021	J	`jnl`	Understanding gender differences in science requires a diversity of perspectives, including controversial ones. Quant. Sci. Stud. Ludo Waltman
2020	J	`jnl`	A principled methodology for comparing relatedness measures for clustering publications. Quant. Sci. Stud. Ludo Waltman, Kevin W. Boyack, Giovanni Colavizza, Nees Jan van Eck
2020	J	`jnl`	Algorithmic labeling in hierarchical classifications of publications: Evaluation of bibliographic fields and term weighting approaches. CoRR Peter Sjögårde, Per Ahlgren, Ludo Waltman
2020	—	`conf`	Browsing Citation Clusters for Academic Literature Search: A Simulation Study with Systematic Reviews. BIR@ECIR Juan Pablo Bascur, Suzan Verberne, Nees Jan van Eck, Ludo Waltman
2020	J	`jnl`	Large-scale comparison of bibliographic data sources: Scopus, Web of Science, Dimensions, Crossref, and Microsoft Academic. CoRR Martijn S. Visser, Nees Jan van Eck, Ludo Waltman
2020	J	`jnl`	Opening science: The rebirth of a scholarly journal. Quant. Sci. Stud. Ludo Waltman, Vincent Larivière, Stasa Milojevic, Cassidy R. Sugimoto
2020	J	`jnl`	Special issue on bibliographic data sources. Quant. Sci. Stud. Ludo Waltman, Vincent Larivière
2019	—	`conf`	A multidimensional perspective on the citation impact of scientific publications. ISSI Yi Bu, Ludo Waltman, Yong Huang
2019	J	`jnl`	A multidimensional perspective on the citation impact of scientific publications. CoRR Yi Bu, Ludo Waltman, Yong Huang
2019	J	`jnl`	A principled methodology for comparing relatedness measures for clustering publications. CoRR Ludo Waltman, Kevin W. Boyack, Giovanni Colavizza, Nees Jan van Eck
2019	J	`jnl`	Accuracy of citation data in Web of Science and Scopus. CoRR Nees Jan van Eck, Ludo Waltman
2019	—	`conf`	An Interactive Visual Tool for Scientific Literature Search: Proposal and Algorithmic Specification. BIR@ECIR Juan Pablo Bascur, Nees Jan van Eck, Ludo Waltman
2019	—	`ch.`	Field Normalization of Scientometric Indicators. Springer Handbook of Science and Technology Indicators Ludo Waltman, Nees Jan van Eck
2019	—	`conf`	Intermediacy of publications. ISSI Lovro Subelj, Ludo Waltman, Vincent A. Traag, Nees Jan van Eck
2019	—	`conf`	Large-scale comparison of bibliographic data sources: Web of Science, Scopus, Dimensions, and Crossref. ISSI Martijn S. Visser, Nees Jan van Eck, Ludo Waltman
2019	—	`conf`	Measuring disagreement in science. ISSI Dakota S. Murray, Wout Lamers, Kevin W. Boyack, Vincent Larivière, Cassidy R. Sugimoto, Nees Jan van Eck, Ludo Waltman
2019	—	`conf`	Persistence of journal hierarchy in open access publishing. ISSI Vincent A. Traag, Ludo Waltman
2019	—	`conf`	Quantifying the long-term influence of scientific publications. ISSI Giovanni Colavizza, Massimo Franceschet, Vincent A. Traag, Ludo Waltman
2019	—	`conf`	Variations in citation practices across the scientific landscape: Analysis based on a large full-text corpus. ISSI Wout S. Lamers, Nees Jan van Eck, Ludo Waltman
2018	J	`jnl`	Analyzing the activities of visitors of the Leiden Ranking website. CoRR Nees Jan van Eck, Ludo Waltman
2018	J	`jnl`	Analyzing the activities of visitors of the Leiden Ranking website. J. Data Inf. Sci. Nees Jan van Eck, Ludo Waltman
2018	J	`jnl`	Characterizing in-text citations in scientific articles: A large-scale analysis. J. Informetrics Kevin W. Boyack, Nees Jan van Eck, Giovanni Colavizza, Ludo Waltman
2018	J	`jnl`	Exploration of Reproducibility Issues in Scientometric Research Part 2: Conceptual Reproducibility. CoRR Theresa Velden, Sybille Hinze, Andrea Scharnhorst, Jesper Wiborg Schneider, Ludo Waltman
2018	J	`jnl`	Exploration of reproducibility issues in scientometric research Part 1: Direct reproducibility. CoRR Ludo Waltman, Sybille Hinze, Andrea Scharnhorst, Jesper Wiborg Schneider, Theresa Velden
2018	J	`jnl`	Field normalization of scientometric indicators. CoRR Ludo Waltman, Nees Jan van Eck
2018	J	`jnl`	From Louvain to Leiden: guaranteeing well-connected communities. CoRR Vincent A. Traag, Ludo Waltman, Nees Jan van Eck
2018	J	`jnl`	Intermediacy of publications. CoRR Lovro Subelj, Ludo Waltman, Vincent A. Traag, Nees Jan van Eck
2018	J	`jnl`	Systematic analysis of agreement between metrics and peer review in the UK REF. CoRR Vincent A. Traag, Ludo Waltman
2018	J	`jnl`	The Closer the Better: Similarity of Publication Pairs at Different Cocitation Levels. J. Assoc. Inf. Sci. Technol. Giovanni Colavizza, Kevin W. Boyack, Nees Jan van Eck, Ludo Waltman
2017	—	`conf`	A principled methodology for comparing relatedness measures for clustering publications. ISSI Ludo Waltman, Kevin W. Boyack, Giovanni Colavizza, Nees Jan van Eck
2017	—	`conf`	Accuracy of citation data in Web of Science and Scopus. ISSI Nees Jan van Eck, Ludo Waltman
2017	J	`jnl`	Characterizing in-text citations in scientific articles: A large-scale analysis. CoRR Kevin W. Boyack, Nees Jan van Eck, Giovanni Colavizza, Ludo Waltman
2017	J	`jnl`	Citation-based clustering of publications using CitNetExplorer and VOSviewer. CoRR Nees Jan van Eck, Ludo Waltman
2017	J	`jnl`	Citation-based clustering of publications using CitNetExplorer and VOSviewer. Scientometrics Nees Jan van Eck, Ludo Waltman
2017	—	`conf`	Exploring the Similarity of Articles Co-cited at Different Levels. ISSI Giovanni Colavizza, Kevin W. Boyack, Nees Jan van Eck, Ludo Waltman
2017	—	`conf`	Reference behavior in the full text of scientific articles: A large-scale analysis. ISSI Kevin W. Boyack, Nees Jan van Eck, Giovanni Colavizza, Ludo Waltman
2017	J	`jnl`	Special section on performance-based research funding systems. J. Informetrics Ludo Waltman
2017	J	`jnl`	The Closer the Better: Similarity of Publication Pairs at Different Co-Citation Levels. CoRR Giovanni Colavizza, Kevin W. Boyack, Nees Jan van Eck, Ludo Waltman
2017	J	`jnl`	Topic identification challenge. Scientometrics Kevin W. Boyack, Wolfgang Glänzel, Jochen Gläser, Frank Havemann, Andrea Scharnhorst, Bart Thijs, Nees Jan van Eck, Theresa Velden, Ludo Waltman
2017	J	`jnl`	Use of the journal impact factor for assessing individual articles need not be wrong. CoRR Ludo Waltman, Vincent A. Traag
2017	—	`conf`	Using full-text data to create improved term maps. ISSI Nees Jan van Eck, Ludo Waltman, Min Song, Yoo Kyung Jeong
2016	J	`jnl`	A review of the literature on citation impact indicators. J. Informetrics Ludo Waltman
2016	J	`jnl`	Conceptual difficulties in the use of statistical inference in citation analysis. CoRR Ludo Waltman
2016	J	`jnl`	Conceptual difficulties in the use of statistical inference in citation analysis. J. Informetrics Ludo Waltman
2016	J	`jnl`	Constructing bibliometric networks: A comparison between full and fractional counting. CoRR Antonio Perianes-Rodríguez, Ludo Waltman, Nees Jan van Eck
2016	J	`jnl`	Constructing bibliometric networks: A comparison between full and fractional counting. J. Informetrics Antonio Perianes-Rodríguez, Ludo Waltman, Nees Jan van Eck
2016	J	`jnl`	Large-scale analysis of the accuracy of the journal classification systems of Web of Science and Scopus. J. Informetrics Qi Wang, Ludo Waltman
2016	J	`jnl`	Special section on size-independent indicators in citation analysis. J. Informetrics Ludo Waltman
2016	J	`jnl`	Special section on statistical inference in citation analysis. J. Informetrics Ludo Waltman
2016	J	`jnl`	The elephant in the room: The problem of quantifying productivity in evaluative scientometrics. CoRR Ludo Waltman, Nees Jan van Eck, Martijn S. Visser, Paul Wouters
2016	J	`jnl`	The elephant in the room: The problem of quantifying productivity in evaluative scientometrics. J. Informetrics Ludo Waltman, Nees Jan van Eck, Martijn S. Visser, Paul Wouters
2015	J	`jnl`	A review of the literature on citation impact indicators. CoRR Ludo Waltman
2015	J	`jnl`	Clustering scientific publications based on citation relations: A systematic comparison of different methods. CoRR Lovro Subelj, Nees Jan van Eck, Ludo Waltman
2015	—	`conf`	Field-Normalized Citation Impact Indicators and the Choice of an Appropriate Counting Method. ISSI Ludo Waltman, Nees Jan van Eck
2015	J	`jnl`	Field-normalized citation impact indicators and the choice of an appropriate counting method. CoRR Ludo Waltman, Nees Jan van Eck
2015	J	`jnl`	Field-normalized citation impact indicators and the choice of an appropriate counting method. J. Informetrics Ludo Waltman, Nees Jan van Eck
2015	J	`jnl`	Field-normalized citation impact indicators using algorithmically constructed classification systems of science. J. Informetrics Javier Ruiz-Castillo, Ludo Waltman
2015	J	`jnl`	Large-Scale Analysis of the Accuracy of the Journal Classification Systems of Web of Science and Scopus. CoRR Qi Wang, Ludo Waltman
2015	J	`jnl`	Message from the new Editor-in-Chief. J. Informetrics Ludo Waltman
2015	J	`jnl`	Predicting the long-term citation impact of recent publications. CoRR Clara Stegehuis, Nelly Litvak, Ludo Waltman
2015	J	`jnl`	Predicting the long-term citation impact of recent publications. J. Informetrics Clara Stegehuis, Nelly Litvak, Ludo Waltman
2014	J	`jnl`	CitNetExplorer: A new software tool for analyzing and visualizing citation networks. CoRR Nees Jan van Eck, Ludo Waltman
2014	J	`jnl`	CitNetExplorer: A new software tool for analyzing and visualizing citation networks. J. Informetrics Nees Jan van Eck, Ludo Waltman
2014	J	`jnl`	Exploring the relationship between the Engineering and Physical Sciences and the Health and Life Sciences by advanced bibliometric methods. CoRR Ludo Waltman, Anthony F. J. van Raan, Sue Smart
2014	J	`jnl`	F1000 Recommendations as a Potential New Data Source for Research Evaluation: A Comparison With Citations. J. Assoc. Inf. Sci. Technol. Ludo Waltman, Rodrigo Costas
2014	—	`conf`	Systematic Retrieval of Scientific Literature based on Citation Relations: Introducing the CitNetExplorer Tool. BIR@ECIR Nees Jan van Eck, Ludo Waltman
2014	J	`jnl`	The correlation between citation-based and expert-based assessments of publication channels: SNIP and SJR vs. Norwegian quality assessments. J. Informetrics Per Ahlgren, Ludo Waltman
2013	J	`jnl`	A smart local moving algorithm for large-scale modularity-based community detection. CoRR Ludo Waltman, Nees Jan van Eck
2013	J	`jnl`	A systematic empirical comparison of different approaches for normalizing citation impact indicators CoRR Ludo Waltman, Nees Jan van Eck
2013	J	`jnl`	A systematic empirical comparison of different approaches for normalizing citation impact indicators. J. Informetrics Ludo Waltman, Nees Jan van Eck
2013	J	`jnl`	Counting publications and citations: Is more always better? CoRR Ludo Waltman, Nees Jan van Eck, Paul Wouters
2013	J	`jnl`	Counting publications and citations: Is more always better? J. Informetrics Ludo Waltman, Nees Jan van Eck, Paul Wouters
2013	J	`jnl`	F1000 recommendations as a new data source for research evaluation: A comparison with citations CoRR Ludo Waltman, Rodrigo Costas
2013	J	`jnl`	On the calculation of percentile-based bibliometric indicators. J. Assoc. Inf. Sci. Technol. Ludo Waltman, Michael Schreiber
2013	J	`jnl`	Some modifications to the SNIP journal impact indicator. J. Informetrics Ludo Waltman, Nees Jan van Eck, Thed N. van Leeuwen, Martijn S. Visser
2013	J	`jnl`	Source normalized indicators of citation impact: an overview of different approaches and an empirical comparison. Scientometrics Ludo Waltman, Nees Jan van Eck
2012	J	`jnl`	A mathematical analysis of the long-run behavior of genetic algorithms for social modeling. Soft Comput. Ludo Waltman, Nees Jan van Eck
2012	J	`jnl`	A new methodology for constructing a publication-level classification system of science CoRR Ludo Waltman, Nees Jan van Eck
2012	J	`jnl`	A new methodology for constructing a publication-level classification system of science. J. Assoc. Inf. Sci. Technol. Ludo Waltman, Nees Jan van Eck
2012	J	`jnl`	An empirical analysis of the use of alphabetical authorship in scientific publishing CoRR Ludo Waltman
2012	J	`jnl`	An empirical analysis of the use of alphabetical authorship in scientific publishing. J. Informetrics Ludo Waltman
2012	J	`jnl`	Citation analysis may severely underestimate the impact of clinical research as compared to basic research CoRR Nees Jan van Eck, Ludo Waltman, Anthony F. J. van Raan, Robert J. M. Klautz, Wilco C. Peul
2012	J	`jnl`	On the calculation of percentile-based bibliometric indicators CoRR Ludo Waltman, Michael Schreiber
2012	J	`jnl`	Research collaboration and the expanding science grid: Measuring globalization processes worldwide CoRR Robert J. W. Tijssen, Ludo Waltman, Nees Jan van Eck
2012	J	`jnl`	Some modifications to the SNIP journal impact indicator CoRR Ludo Waltman, Nees Jan van Eck, Thed N. van Leeuwen, Martijn S. Visser
2012	J	`jnl`	Source normalized indicators of citation impact: An overview of different approaches and an empirical comparison CoRR Ludo Waltman, Nees Jan van Eck
2012	J	`jnl`	The Leiden Ranking 2011/2012: Data collection, indicators, and interpretation CoRR Ludo Waltman, Clara Calero-Medina, Joost Kosten, Ed C. M. Noyons, Robert J. W. Tijssen, Nees Jan van Eck, Thed N. van Leeuwen, Anthony F. J. van Raan, Martijn S. Visser, Paul Wouters
2012	J	`jnl`	The Leiden ranking 2011/2012: Data collection, indicators, and interpretation. J. Assoc. Inf. Sci. Technol. Ludo Waltman, Clara Calero-Medina, Joost Kosten, Ed C. M. Noyons, Robert J. W. Tijssen, Nees Jan van Eck, Thed N. van Leeuwen, Anthony F. J. van Raan, Martijn S. Visser, Paul Wouters
2012	J	`jnl`	The inconsistency of the h-index. J. Assoc. Inf. Sci. Technol. Ludo Waltman, Nees Jan van Eck
2012	J	`jnl`	Universality of citation distributions revisited. J. Assoc. Inf. Sci. Technol. Ludo Waltman, Nees Jan van Eck, Anthony F. J. van Raan
2011	J	`jnl`	A recursive field-normalized bibliometric performance indicator: An application to the field of library and information science. CoRR Ludo Waltman, Erjia Yan, Nees Jan van Eck
2011	J	`jnl`	A recursive field-normalized bibliometric performance indicator: an application to the field of library and information science. Scientometrics Ludo Waltman, Erjia Yan, Nees Jan van Eck
2011	J	`jnl`	Globalisation of science in kilometres CoRR Ludo Waltman, Robert J. W. Tijssen, Nees Jan van Eck
2011	J	`jnl`	Globalisation of science in kilometres. J. Informetrics Ludo Waltman, Robert J. W. Tijssen, Nees Jan van Eck
2011	J	`jnl`	On the correlation between bibliometric indicators and peer review: Reply to Opthof and Leydesdorff CoRR Ludo Waltman, Nees Jan van Eck, Thed N. van Leeuwen, Martijn S. Visser, Anthony F. J. van Raan
2011	J	`jnl`	On the correlation between bibliometric indicators and peer review: reply to Opthof and Leydesdorff. Scientometrics Ludo Waltman, Nees Jan van Eck, Thed N. van Leeuwen, Martijn S. Visser, Anthony F. J. van Raan
2011	J	`jnl`	Relations between the shape of a size-frequency distribution and the shape of a rank-frequency distribution. Inf. Process. Manag. Leo Egghe, Ludo Waltman
2011	J	`jnl`	Text mining and visualization using VOSviewer CoRR Nees Jan van Eck, Ludo Waltman
2011	J	`jnl`	The detection of "hot regions" in the geography of science - A visualization approach by using density maps. J. Informetrics Lutz Bornmann, Ludo Waltman
2011	J	`jnl`	The detection of "hot regions" in the geography of science: A visualization approach by using density maps CoRR Lutz Bornmann, Ludo Waltman
2011	J	`jnl`	The inconsistency of the h-index CoRR Ludo Waltman, Nees Jan van Eck
2011	J	`jnl`	Towards a new crown indicator: Some theoretical considerations. J. Informetrics Ludo Waltman, Nees Jan van Eck, Thed N. van Leeuwen, Martijn S. Visser, Anthony F. J. van Raan
2011	J	`jnl`	Towards a new crown indicator: an empirical analysis. Scientometrics Ludo Waltman, Nees Jan van Eck, Thed N. van Leeuwen, Martijn S. Visser, Anthony F. J. van Raan
2011	J	`jnl`	Universality of citation distributions revisited CoRR Ludo Waltman, Nees Jan van Eck, Anthony F. J. van Raan
2010	J	`jnl`	A comparison of two techniques for bibliometric mapping: Multidimensional scaling and VOS CoRR Nees Jan van Eck, Ludo Waltman, Rommert Dekker, Jan van den Berg
2010	J	`jnl`	A comparison of two techniques for bibliometric mapping: Multidimensional scaling and VOS. J. Assoc. Inf. Sci. Technol. Nees Jan van Eck, Ludo Waltman, Rommert Dekker, Jan van den Berg
2010	J	`jnl`	A unified approach to mapping and clustering of bibliometric networks CoRR Ludo Waltman, Nees Jan van Eck, Ed C. M. Noyons
2010	J	`jnl`	A unified approach to mapping and clustering of bibliometric networks. J. Informetrics Ludo Waltman, Nees Jan van Eck, Ed C. M. Noyons
2010	J	`jnl`	Automatic term identification for bibliometric mapping. Scientometrics Nees Jan van Eck, Ludo Waltman, Ed C. M. Noyons, R. K. Buter
2010	J	`jnl`	Rivals for the crown: Reply to Opthof and Leydesdorff CoRR Anthony F. J. van Raan, Thed N. van Leeuwen, Martijn S. Visser, Nees Jan van Eck, Ludo Waltman
2010	J	`jnl`	Rivals for the crown: Reply to Opthof and Leydesdorff. J. Informetrics Anthony F. J. van Raan, Thed N. van Leeuwen, Martijn S. Visser, Nees Jan van Eck, Ludo Waltman
2010	J	`jnl`	Software survey: VOSviewer, a computer program for bibliometric mapping. Scientometrics Nees Jan van Eck, Ludo Waltman
2010	J	`jnl`	The relation between Eigenfactor, audience factor, and influence weight CoRR Ludo Waltman, Nees Jan van Eck
2010	J	`jnl`	The relation between Eigenfactor, audience factor, and influence weight. J. Assoc. Inf. Sci. Technol. Ludo Waltman, Nees Jan van Eck
2010	J	`jnl`	Towards a new crown indicator: An empirical analysis CoRR Ludo Waltman, Nees Jan van Eck, Thed N. van Leeuwen, Martijn S. Visser, Anthony F. J. van Raan
2010	J	`jnl`	Towards a new crown indicator: Some theoretical considerations CoRR Ludo Waltman, Nees Jan van Eck, Thed N. van Leeuwen, Martijn S. Visser, Anthony F. J. van Raan
2009	J	`jnl`	How to normalize cooccurrence data? An analysis of some well-known similarity measures. J. Assoc. Inf. Sci. Technol. Nees Jan van Eck, Ludo Waltman
2009	J	`jnl`	On the proper understanding of the limiting behavior of generalizations of the h- and g-indices. J. Informetrics Nees Jan van Eck, Ludo Waltman
2009	J	`jnl`	Some comments on Egghe's derivation of the impact factor distribution. J. Informetrics Ludo Waltman, Nees Jan van Eck
2008	J	`jnl`	Appropriate similarity measures for author co-citation analysis. J. Assoc. Inf. Sci. Technol. Nees Jan van Eck, Ludo Waltman
2008	J	`jnl`	Generalizing the h- and g-indices. J. Informetrics Nees Jan van Eck, Ludo Waltman
2008	J	`jnl`	Some comments on the journal weighted impact factor proposed by Habibzadeh and Yadollahie. J. Informetrics Ludo Waltman, Nees Jan van Eck
2007	J	`jnl`	Bibliometric Mapping of the Computational Intelligence Field. Int. J. Uncertain. Fuzziness Knowl. Based Syst. Nees Jan van Eck, Ludo Waltman
2007	J	`jnl`	Some comments on the question whether co-occurrence data should be normalized. J. Assoc. Inf. Sci. Technol. Ludo Waltman, Nees Jan van Eck
2006	—	`conf`	VOS: A New Method for Visualizing Similarities Between Objects. GfKl Nees Jan van Eck, Ludo Waltman
2006	B	`conf`	Visualizing the WCCI 2006 Knowledge Domain. FUZZ-IEEE Nees Jan van Eck, Ludo Waltman, Jan van den Berg, Uzay Kaymak
2006	J	`jnl`	Visualizing the computational intelligence field [Application Notes]. IEEE Comput. Intell. Mag. Nees Jan van Eck, Ludo Waltman, Jan van den Berg, Uzay Kaymak
2005	—	`conf`	A Novel Algorithm for Visualizing Concept Associations. BNAIC Nees Jan van Eck, Ludo Waltman, Jan van den Berg
2005	—	`conf`	A Novel Algorithm for Visualizing Concept Associations. DEXA Workshops Nees Jan van Eck, Ludo Waltman, Jan van den Berg
2005	—	`conf`	Fuzzy histograms: A Statistical Analysis. EUSFLAT Conf. Ludo Waltman, Uzay Kaymak, Jan van den Berg
2005	B	`conf`	Maximum likelihood parameter estimation in probabilistic fuzzy classifiers. FUZZ-IEEE Ludo Waltman, Uzay Kaymak, Jan van den Berg