Ludo Waltman
发表
Lutz Bornmann,
Ludo Waltman,
L. Bornmann,
2011
.
Ludo Waltman,
Nees Jan van Eck,
L. Waltman,
2015,
ISSI.
Ludo Waltman,
Nees Jan van Eck,
L. Waltman,
2018,
Springer Handbook of Science and Technology Indicators.
Thed N. van Leeuwen,
Ludo Waltman,
Nees Jan van Eck,
2012,
J. Informetrics.
Research collaboration and the expanding science grid: Measuring globalization processes worldwide
pdf
Ludo Waltman,
Nees Jan van Eck,
Robert J. W. Tijssen,
2012,
ArXiv.
Ludo Waltman,
Nees Jan van Eck,
Juan Pablo Bascur,
2019,
BIR@ECIR.
Lutz Bornmann,
Ludo Waltman,
L. Bornmann,
2011,
J. Informetrics.
Ludo Waltman,
Nees Jan van Eck,
L. Waltman,
2009,
J. Assoc. Inf. Sci. Technol..
Ludo Waltman,
Nees Jan van Eck,
L. Waltman,
2006,
GfKl.
Ludo Waltman,
L. Waltman,
2016,
J. Informetrics.
Uzay Kaymak,
Rommert Dekker,
Ludo Waltman,
2009
.
Wolfgang Glänzel,
Kevin W. Boyack,
Bart Thijs,
2017,
Scientometrics.
Ludo Waltman,
Nees Jan van Eck,
Lovro Šubelj,
2020,
Royal Society Open Science.
Anthony F. J. van Raan,
Ludo Waltman,
Nees Jan van Eck,
2012,
PloS one.
Ludo Waltman,
Nees Jan van Eck,
Erjia Yan,
2011,
Scientometrics.
Ludo Waltman,
Nees Jan van Eck,
2007
.
Ludo Waltman,
L. Waltman,
2007
.
Ludo Waltman,
2016,
J. Informetrics.
Ludo Waltman,
Nelly Litvak,
Clara Stegehuis,
2015,
J. Informetrics.
Ed C. M. Noyons,
Ludo Waltman,
Nees Jan van Eck,
2010,
J. Informetrics.
Leo Egghe,
Ludo Waltman,
L. Waltman,
2011,
Inf. Process. Manag..
Ludo Waltman,
Nees Jan van Eck,
L. Waltman,
2012,
J. Assoc. Inf. Sci. Technol..
Vincent A. Traag,
Ludo Waltman,
V. Traag,
2019,
International Conference on Scientometrics and Informetrics.
Ludo Waltman,
Nees Jan van Eck,
L. Waltman,
2009,
Soft Computing.
Ludo Waltman,
L. Waltman,
2015,
J. Informetrics.
Ludo Waltman,
Nees Jan van Eck,
Paul Wouters,
2016,
J. Informetrics.
Ludo Waltman,
Nees Jan van Eck,
L. Waltman,
2017,
Scientometrics.
Ludo Waltman,
Nees Jan van Eck,
L. Waltman,
2012,
Scientometrics.
A systematic empirical comparison of different approaches for normalizing citation impact indicators
pdf
Ludo Waltman,
Nees Jan van Eck,
L. Waltman,
2013,
J. Informetrics.
Ludo Waltman,
Nees Jan van Eck,
L. Waltman,
2010,
J. Assoc. Inf. Sci. Technol..
Ludo Waltman,
Rodrigo Costas,
R. Costas,
2014,
J. Assoc. Inf. Sci. Technol..
Kevin W. Boyack,
Giovanni Colavizza,
Ludo Waltman,
2017,
ISSI.
Ludo Waltman,
Nees Jan van Eck,
L. Waltman,
2009,
J. Informetrics.
Ludo Waltman,
Nees Jan van Eck,
L. Waltman,
2014
.
Ludo Waltman,
Nees Jan van Eck,
2009
.
Uzay Kaymak,
Ludo Waltman,
Nees Jan van Eck,
2006
.
Rommert Dekker,
Ludo Waltman,
Nees Jan van Eck,
2010,
J. Assoc. Inf. Sci. Technol..
Ludo Waltman,
Suzan Verberne,
Nees Jan van Eck,
2020,
BIR@ECIR.
Kevin W. Boyack,
Giovanni Colavizza,
Ludo Waltman,
2019,
ISSI.
Ludo Waltman,
Nees Jan van Eck,
L. Waltman,
2009
.
Ludo Waltman,
Nees Jan van Eck,
2008,
J. Assoc. Inf. Sci. Technol..
Vincent A. Traag,
Ludo Waltman,
Nees Jan van Eck,
2018,
Scientific Reports.
Exploration of Reproducibility Issues in Scientometric Research Part 2: Conceptual Reproducibility
pdf
Ludo Waltman,
Andrea Scharnhorst,
Theresa Velden,
2018,
ArXiv.
Ludo Waltman,
Erjia Yan,
E. Yan,
2014
.
Kevin W. Boyack,
Giovanni Colavizza,
Ludo Waltman,
2017,
J. Assoc. Inf. Sci. Technol..
Thed N. van Leeuwen,
Anthony F. J. van Raan,
Ed C. M. Noyons,
2012,
J. Assoc. Inf. Sci. Technol..
Ludo Waltman,
Nees Jan van Eck,
Martijn S. Visser,
2019,
ISSI.
Ludo Waltman,
Nees Jan van Eck,
L. Waltman,
2018,
J. Data Inf. Sci..
Ludo Waltman,
Nees Jan van Eck,
Robert J. W. Tijssen,
2011,
J. Informetrics.
Ludo Waltman,
L. Waltman,
2015,
J. Informetrics.
Ludo Waltman,
Nees Jan van Eck,
Wout S. Lamers,
2019,
ISSI.
Rommert Dekker,
Ludo Waltman,
Nees Jan van Eck,
2010
.
Ludo Waltman,
Nees Jan van Eck,
L. Waltman,
2013,
The European Physical Journal B.
Kevin W. Boyack,
Giovanni Colavizza,
Ludo Waltman,
2017,
J. Informetrics.
Uzay Kaymak,
Ludo Waltman,
Nees Jan van Eck,
2004
.
Ludo Waltman,
Nees Jan van Eck,
L. Waltman,
2008,
J. Informetrics.
Vincent A. Traag,
Massimo Franceschet,
Giovanni Colavizza,
2019,
International Conference on Scientometrics and Informetrics.
Ludo Waltman,
Nees Jan van Eck,
L. Waltman,
2014,
BIR@ECIR.
Ludo Waltman,
Javier Ruiz-Castillo,
L. Waltman,
2015,
J. Informetrics.
Ludo Waltman,
Nees Jan van Eck,
L. Waltman,
2008
.
Vincent Larivière,
Cassidy R. Sugimoto,
Ludo Waltman,
2019,
ISSI.
Ludo Waltman,
Nees Jan van Eck,
Antonio Perianes-Rodríguez,
2016,
J. Informetrics.
Ludo Waltman,
Nees Jan van Eck,
L. Waltman,
2009,
Scientometrics.
Ludo Waltman,
Nees Jan van Eck,
Lovro Subelj,
2015,
PloS one.
Ludo Waltman,
Nees Jan van Eck,
L. Waltman,
2019,
ISSI.
Thed N. van Leeuwen,
Anthony F. J. van Raan,
Ludo Waltman,
2011,
Scientometrics.
Ludo Waltman,
Andrea Scharnhorst,
Theresa Velden,
2018,
ArXiv.
Vincent Larivière,
Cassidy R. Sugimoto,
Staša Milojević,
2020,
Quantitative Science Studies.
Vincent Larivière,
Ludo Waltman,
V. Larivière,
2020,
Quantitative Science Studies.
Ludo Waltman,
Nees Jan van Eck,
Paul Wouters,
2013,
J. Informetrics.
Ed C. M. Noyons,
Ludo Waltman,
Nees Jan van Eck,
2008,
Scientometrics.
Ludo Waltman,
Nees Jan van Eck,
2007,
J. Assoc. Inf. Sci. Technol..
Vincent A. Traag,
Ludo Waltman,
V. Traag,
2017,
ArXiv.
Large-scale analysis of the accuracy of the journal classification systems of Web of Science and Scopus
pdf
Qi Wang,
Ludo Waltman,
L. Waltman,
2015,
J. Informetrics.
Ludo Waltman,
Nees Jan van Eck,
Yoo Kyung Jeong,
2017,
ISSI.
Anthony F. J. van Raan,
Ludo Waltman,
Sue Smart,
2014,
PloS one.
Thed N. van Leeuwen,
Anthony F. J. van Raan,
Ludo Waltman,
2010,
J. Informetrics.
Thed N. van Leeuwen,
Anthony F. J. van Raan,
Ludo Waltman,
2010,
Scientometrics.
Large-scale comparison of bibliographic data sources: Scopus, Web of Science, Dimensions, Crossref, and Microsoft Academic
pdf
Ludo Waltman,
Nees Jan van Eck,
Martijn Visser,
2020,
Quantitative Science Studies.
Ludo Waltman,
Nees Jan van Eck,
Nees Jan van Eck,
2009
.
Ludo Waltman,
Nees Jan van Eck,
2009,
J. Informetrics.
Yong Huang,
Ludo Waltman,
Yi Bu,
2019,
ISSI.
Thed N. van Leeuwen,
Anthony F. J. van Raan,
Ludo Waltman,
2010,
J. Informetrics.
Ludo Waltman,
Nees Jan van Eck,
L. Waltman,
2007,
Int. J. Uncertain. Fuzziness Knowl. Based Syst..
Uzay Kaymak,
Ludo Waltman,
Nees Jan van Eck,
2006,
2006 IEEE International Conference on Fuzzy Systems.
Ludo Waltman,
Rodrigo Costas,
2013,
ArXiv.
Ludo Waltman,
Yong Huang,
Yi Bu,
2019
.
Ludo Waltman,
Nees Jan van Eck,
L. Waltman,
2014,
J. Informetrics.
Ludo Waltman,
Nees Jan van Eck,
L. Waltman,
2008,
J. Informetrics.
Vincent A. Traag,
Ludo Waltman,
V. Traag,
2019,
Palgrave Communications.
Ludo Waltman,
Nees Jan van Eck,
Jan van den Berg,
2005,
16th International Workshop on Database and Expert Systems Applications (DEXA'05).
Ludo Waltman,
Per Ahlgren,
L. Waltman,
2014,
J. Informetrics.
Uzay Kaymak,
Ludo Waltman,
Jan van den Berg,
2005,
The 14th IEEE International Conference on Fuzzy Systems, 2005. FUZZ '05..
Kevin W. Boyack,
Giovanni Colavizza,
Ludo Waltman,
2017,
International Conference on Scientometrics and Informetrics.
Algorithmic labeling in hierarchical classifications of publications: Evaluation of bibliographic fields and term weighting approaches
pdf
Peter Sjögårde,
Ludo Waltman,
Per Ahlgren,
2020,
J. Assoc. Inf. Sci. Technol..
Ludo Waltman,
L. Waltman,
2012,
J. Informetrics.
Ludo Waltman,
L. Waltman,
2016,
J. Informetrics.
Ludo Waltman,
L. Waltman,
2017,
J. Informetrics.
Ludo Waltman,
Nees Jan van Eck,
L. Waltman,
2011,
ArXiv.
Ludo Waltman,
Michael Schreiber,
L. Waltman,
2012,
J. Assoc. Inf. Sci. Technol..
Uzay Kaymak,
Ludo Waltman,
Jan van den Berg,
2005,
EUSFLAT Conf..
Ludo Waltman,
Nees Jan van Eck,
L. Waltman,
2011,
J. Assoc. Inf. Sci. Technol..
Sarah de Rijcke,
Alastair Dunning,
Bianca Kramer,
2021
.
Ludo Waltman,
Hanjo D. Boekhout,
Inge van der Weijden,
2021,
ArXiv.
Vincent Larivière,
Cassidy R. Sugimoto,
Ludo Waltman,
2021,
eLife.
Ludo Waltman,
Hui-Zhen Fu,
L. Waltman,
2021,
Climatic Change.
Ludo Waltman,
L. Waltman,
2021,
Quant. Sci. Stud..
Ludo Waltman,
L. Waltman,
2021
.
Ludo Waltman,
Nees Jan van Eck,
Robert J. W. Tijssen,
2011,
Nature.
Ludo Waltman,
T. V. van Leeuwen,
L. Waltman,
2015,
Paediatric and perinatal epidemiology.
Vincent A. Traag,
Giovanni Colavizza,
Ludo Waltman,
2020,
bioRxiv.
Ludo Waltman,
Nees Jan van Eck,
Johannes Meuer,
2014
.
Vincent Larivière,
Cassidy R. Sugimoto,
Ludo Waltman,
2019,
Nature.
Ludo Waltman,
Nees Jan van Eck,
2010
.
Ludo Waltman,
Rodrigo Costas,
R. Costas,
2012
.
Ludo Waltman,
V. Traag,
L. Waltman,
2017,
F1000Research.
Ludo Waltman,
L. Waltman,
2005
.
Fei Shu,
Vincent Larivière,
Tindaro Cicero,
2019
.
Holger H. Hoos,
Ludo Waltman,
H. Hoos,
2018
.
Mike Thelwall,
Kayvan Kousha,
Sarah de Rijcke,
2015
.
Ludo Waltman,
Nees Jan van Eck,
L. Waltman,
2010
.
Anthony F. J. van Raan,
Ludo Waltman,
Nees Jan van Eck,
2011,
J. Assoc. Inf. Sci. Technol..
Ludo Waltman,
Ingeborg Meijer,
L. Waltman,
2019
.
Kayvan Kousha,
Ludo Waltman,
Paul Wouters,
2015
.
Ludo Waltman,
Andrew M. Plume,
Clifford Tatum,
2017
.
Uzay Kaymak,
Ludo Waltman,
L. Waltman,
2008
.