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
Rank 24,216

SSRN RANKINGS

Top 24,216

in Total Papers Downloads

2,682

SSRN CITATIONS
Rank 25,068

SSRN RANKINGS

Top 25,068

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 604 (57,490)
Citation 1

Abstract:

Loading...

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 362 (106,095)
Citation 3

Abstract:

Loading...

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 InstituteErasmus University, Rotterdam (EUR) - Erasmus School of Economics, 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 343 (112,716)

Abstract:

Loading...

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 292 (133,992)

Abstract:

Loading...

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 182 (211,982)

Abstract:

Loading...

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 161 (234,211)

Abstract:

Loading...

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 94 (350,386)

Abstract:

Loading...

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 55 (473,518)

Abstract:

Loading...

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 (284,577)

Abstract:

Loading...

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 InstituteErasmus University, Rotterdam (EUR) - Erasmus School of Economics and Erasmus University Rotterdam (EUR) - Faculty of Economics - Department of Computer Science
Downloads 113 (307,675)

Abstract:

Loading...

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 77 (392,282)

Abstract:

Loading...

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 (410,379)

Abstract:

Loading...

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 (436,902)

Abstract:

Loading...

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 (451,133)
Citation 1

Abstract:

Loading...

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 51 (481,953)

Abstract:

Loading...

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 (590,117)

Abstract:

Loading...

rank-order distribution, impact factor, distribution