Ludo Waltman

Erasmus University Rotterdam - Faculty of Economics and Business

P.O. Box 1738

3000 DR Rotterdam, NL 3062 PA

Netherlands

SCHOLARLY PAPERS

15

DOWNLOADS
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Top 23,223

in Total Papers Downloads

2,506

SSRN CITATIONS
Rank 24,498

SSRN RANKINGS

Top 24,498

in Total Papers Citations

3

CROSSREF CITATIONS

35

Scholarly Papers (15)

1.

Vosviewer: A Computer Program for Bibliometric Mapping

ERIM Report Series Reference No. ERS-2009-005-LIS
Number of pages: 22 Posted: 21 Feb 2009
Nees Jan van Eck and Ludo Waltman
Erasmus University Rotterdam - Erasmus School of Economics and Erasmus University Rotterdam - Faculty of Economics and Business
Downloads 509 (65,403)

Abstract:

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bibliometric mapping, visualization, density view, VOSviewer, VOS

2.

How to Normalize Co-Occurrence Data? An Analysis of Some Well-Known Similarity Measures

ERIM Report Series Reference No. ERS-2009-001-LIS
Number of pages: 45 Posted: 25 Jan 2009
Nees Jan van Eck and Ludo Waltman
Erasmus University Rotterdam - Erasmus School of Economics and Erasmus University Rotterdam - Faculty of Economics and Business
Downloads 344 (103,823)
Citation 2

Abstract:

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similarity measure, association strength, cosine, inclusion index, Jaccard index

3.

Arrival Processes for Vessels in a Port Simulation

ERIM Report Series Reference No. ERS-2003-067-LIS
Number of pages: 20 Posted: 06 Nov 2003
Erasmus University Rotterdam - Faculty of Economics and Business, Econometric Institute, Erasmus University Rotterdam - Faculty of Economics and Business, Erasmus University Rotterdam - Faculty of Economics and Business and Erasmus University Rotterdam - Faculty of Economics and Business
Downloads 340 (105,214)

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port simulation, discrete-event simulation, arrival processes, port logistics

4.

Vos: A New Method for Visualizing Similarities between Objects

ERIM Report Series Reference No. ERS-2006-020-LIS
Number of pages: 14 Posted: 26 Aug 2006
Nees Jan van Eck and Ludo Waltman
Erasmus University Rotterdam - Erasmus School of Economics and Erasmus University Rotterdam - Faculty of Economics and Business
Downloads 248 (146,704)

Abstract:

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Multidimensional Scaling, VOS, Horseshoe Effect, Sammon Mapping, Visualization of Similarities

5.

Bibliometric Mapping of the Computational Intelligence Field

ERIM Report Series Reference No. ERS-2007-027-LIS
Number of pages: 29 Posted: 20 May 2007
N.J.P. van Eck and Ludo Waltman
affiliation not provided to SSRN and Erasmus University Rotterdam - Faculty of Economics and Business
Downloads 178 (199,885)

Abstract:

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Bibliometric mapping, Bibliometrics, Computational intelligence, Evolutionary computation, Fuzzy systems, Neural networks

6.

A Theoretical Analysis of Cooperative Behavior in Multi-Agent Q-Learning

ERIM Report Series Reference No. ERS-2006-006-LIS
Number of pages: 23 Posted: 07 Feb 2006
Ludo Waltman and U. Kaymak
Erasmus University Rotterdam - Faculty of Economics and Business and Erasmus University Rotterdam (EUR) - Faculty of Economics - Department of Computer Science
Downloads 157 (222,421)

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Cooperation, Multi-Agent Q-Learning, Multi-Agent Reinforcement Learning, Nash Equilibrium, Prisoner’s Dilemma

Some Comments on the Question Whether Co-Occurrence Data Should Be Normalized

ERIM Report Series Reference No. ERS-2007-017-LIS
Number of pages: 9 Posted: 12 Apr 2007
Ludo Waltman and Nees Jan van Eck
Erasmus University Rotterdam - Faculty of Economics and Business and Erasmus University Rotterdam - Erasmus School of Economics
Downloads 93 (329,120)

Abstract:

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Multidimensional scaling, Author cocitation analysis, Co-occurrence data, Normalization, PROXSCAL, Pearson correlation

Some Comments on the Question Whether Co-Occurrence Data Should Be Normalized

ERIM Report Series Reference No. ERS-2008-014-LIS
Number of pages: 6 Posted: 09 Apr 2008
Ludo Waltman and Nees Jan van Eck
Erasmus University Rotterdam - Faculty of Economics and Business and Erasmus University Rotterdam - Erasmus School of Economics
Downloads 54 (446,227)

Abstract:

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co-occurrence data, author cocitation analysis, normalization, Pearson correlation, multidimensional scaling, PROXSCAL

8.

Appropriate Similarity Measures for Author Cocitation Analysis

ERIM Report Series Reference No. ERS-2007-091-LIS
Number of pages: 17 Posted: 29 Jan 2008
Nees Jan van Eck and Ludo Waltman
Erasmus University Rotterdam - Erasmus School of Economics and Erasmus University Rotterdam - Faculty of Economics and Business
Downloads 126 (264,862)

Abstract:

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author cocitation analysis, similarity measure, Pearson correlation, cosine, information science

9.

Economic Modeling Using Evolutionary Algorithms: The Effect of a Binary Encoding of Strategies

ERIM Report Series Reference No. ERS-2009-028-LIS
Number of pages: 25 Posted: 08 Jun 2009
Erasmus University Rotterdam - Faculty of Economics and Business, Erasmus University Rotterdam - Erasmus School of Economics, Econometric Institute and Erasmus University Rotterdam (EUR) - Faculty of Economics - Department of Computer Science
Downloads 111 (290,292)

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agent-based computational economics, evolutionary algorithm, genetic algorithm, binary encoding, premature convergence

10.

A Simple Alternative to the H-Index

ERIM Report Series Reference No. ERS-2009-043-LIS
Number of pages: 9 Posted: 26 Aug 2009
Ludo Waltman and Nees Jan van Eck
Erasmus University Rotterdam - Faculty of Economics and Business and Erasmus University Rotterdam - Erasmus School of Economics
Downloads 74 (374,382)

Abstract:

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bibliometric indicator, h-index, highly cited publications, consistency

11.

Generalizing the H- and G-Indices

ERIM Report Series Reference No. ERS-2008-049-LIS
Number of pages: 23 Posted: 25 Jan 2009
Nees Jan van Eck and Ludo Waltman
Erasmus University Rotterdam - Erasmus School of Economics and Erasmus University Rotterdam - Faculty of Economics and Business
Downloads 71 (383,017)

Abstract:

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h-index, Hirsch index, g-index, hα-index, gα-index

12.

A Mathematical Analysis of the Long-Run Behavior of Genetic Algorithms for Social Modeling

ERIM Report Series Reference No. ERS-2009-011-LIS
Number of pages: 46 Posted: 23 Mar 2009
Ludo Waltman and Nees Jan van Eck
Erasmus University Rotterdam - Faculty of Economics and Business and Erasmus University Rotterdam - Erasmus School of Economics
Downloads 63 (407,978)

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genetic algorithm, long-run behavior, social modeling, economics, evolutionary game theory

13.

Automatic Term Identification for Bibliometric Mapping

ERIM Report Series Reference No. ERS-2008-081-LIS
Number of pages: 30 Posted: 25 Jan 2009
Erasmus University Rotterdam - Erasmus School of Economics, Erasmus University Rotterdam - Faculty of Economics and Business, affiliation not provided to SSRN and affiliation not provided to SSRN
Downloads 59 (421,383)
Citation 1

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operations research, automatic term identification, bibliometric mapping, probabilistic latent semantic analysis, term map

14.

A Taxonomy of Bibliometric Performance Indicators Based on the Property of Consistency

ERIM Report Series Reference No. ERS-2009-014-LIS
Number of pages: 10 Posted: 23 Mar 2009
Ludo Waltman and Nees Jan van Eck
Erasmus University Rotterdam - Faculty of Economics and Business and Erasmus University Rotterdam - Erasmus School of Economics
Downloads 50 (454,219)

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scientific performance, bibliometric performance indicator, consistency, taxonomy, h-index

15.

Some Comments on Egghe’S Derivation of the Impact Factor Distribution

ERIM Report Series Reference No. ERS-2009-016-LIS
Number of pages: 11 Posted: 23 Mar 2009
Ludo Waltman and Nees Jan van Eck
Erasmus University Rotterdam - Faculty of Economics and Business and Erasmus University Rotterdam - Erasmus School of Economics
Downloads 29 (551,725)

Abstract:

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rank-order distribution, impact factor, distribution