Loet Leydesdorff

Orcid: 0000-0002-7835-3098

Affiliations:
  • University of Amsterdam


According to our database1, Loet Leydesdorff authored at least 393 papers between 1981 and 2024.

Collaborative distances:
  • Dijkstra number2 of four.
  • Erdős number3 of four.

Timeline

Legend:

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Online presence:

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Bibliography

2024
Quantitative Theory of Meaning. Application to Financial Markets. EUR/USD case study.
CoRR, 2024

2023
Retraction of Predatory publishing in Scopus: evidence on cross-country differences lacks justification.
Scientometrics, February, 2023

A heuristic approach based on Leiden rankings to identify outliers: evidence from Italian universities in the European landscape.
Scientometrics, January, 2023

2022
A discussion of measuring the top-1% most-highly cited publications: quality and impact of Chinese papers.
Scientometrics, 2022

A discussion of measuring the top-1 percent most-highly cited publications: Quality and impact of Chinese papers.
CoRR, 2022

2021
Improved clusterings and visualizations of 11, 359 journals in the JCRs 2015.
Scientometrics, 2021

Disruption indices and their calculation using web-of-science data: Indicators of historical developments or evolutionary dynamics?
J. Informetrics, 2021

Which are the influential publications in the Web of Science subject categories over a long period of time? CRExplorer software used for big-data analyses in bibliometrics .
J. Inf. Sci., 2021

The Scientometric Measurement of Interdisciplinarity and Diversity in the Research Portfolios of Chinese Universities.
J. Data Inf. Sci., 2021

Are University Rankings Statistically Significant? A Comparison among Chinese Universities and with the USA.
J. Data Inf. Sci., 2021

The measurement of "interdisciplinarity" and "synergy" in scientific and extra-scientific collaborations.
J. Assoc. Inf. Sci. Technol., 2021

2020
Eco-system mapping of techno-science linkages at the level of scholarly journals and fields.
Scientometrics, 2020

"Interdisciplinarity" and "Synergy" in the Œuvre of Judit Bar-Ilan.
Scientometrics, 2020

Historical roots of Judit Bar-Ilan's research: a cited-references analysis using CRExplorer.
Scientometrics, 2020

Bridging the divide between qualitative and quantitative science studies.
Quant. Sci. Stud., 2020

Does the <i>h</i><sub>α</sub>-index reinforce the Matthew effect in science? The introduction of agent-based simulations into scientometrics.
Quant. Sci. Stud., 2020

Within-journal self-citations and the Pinski-Narin influence weights.
J. Informetrics, 2020

Corrigendum to "Does the public discuss other topics on climate change than researchers? A comparison of explorative networks based on author keywords and hashtags" [J. Informetrics 13 (2019) 695-707].
J. Informetrics, 2020

Library and Information Science Papers Discussed on Twitter: A new Network-based Approach for Measuring Public Attention.
J. Data Inf. Sci., 2020

Automated analysis of actor-topic networks on twitter: New approaches to the analysis of socio-semantic networks.
J. Assoc. Inf. Sci. Technol., 2020

The evolutionary dynamics of expectations: Interactions among codes in inter-human communications.
Biosyst., 2020

2019
h<sub>α</sub>: the scientist as chimpanzee or bonobo.
Scientometrics, 2019

The integrated impact indicator revisited (I3*): a non-parametric alternative to the journal impact factor.
Scientometrics, 2019

How well does I3 perform for impact measurement compared to other bibliometric indicators? The convergent validity of several (field-normalized) indicators.
Scientometrics, 2019

Diversity measurement: Steps towards the measurement of interdisciplinarity?
J. Informetrics, 2019

Interdisciplinarity as diversity in citation patterns among journals: Rao-Stirling diversity, relative variety, and the Gini coefficient.
J. Informetrics, 2019

Does the public discuss other topics on climate change than researchers? A comparison of explorative networks based on author keywords and hashtags.
J. Informetrics, 2019

Synergy in the knowledge base of U.S. innovation systems at national, state, and regional levels: The contributions of high-tech manufacturing and knowledge-intensive services.
J. Assoc. Inf. Sci. Technol., 2019

The Relative Influences of Government Funding and International Collaboration on Citation Impact.
J. Assoc. Inf. Sci. Technol., 2019

Statistical significance and effect sizes of differences among research universities at the level of nations and worldwide based on the leiden rankings.
J. Assoc. Inf. Sci. Technol., 2019

Does the h<sub>α</sub> index reinforce the Matthew effect in science? Agent-based simulations using Stata and R.
CoRR, 2019

Impact factors, Within-Journal Self-citations, and the Pinski-Narin Influence Weights: An analysis using both subfields and the complete Journal Citation Reports 2017.
CoRR, 2019

An Eco-Systems Approach to Constructing Economic Complexity Measures: Endogenization of the technological Dimension using Lotka-Volterra equations.
Adv. Complex Syst., 2019

Can the Emergence of New Developments in the Techno-Sciences be Indicated as 'Hot Spots' in Journal Maps?
Proceedings of the 17th International Conference on Scientometrics and Informetrics, 2019

The Integrated Impact Indicator (I3) and the Journal Impact Factor: A Non‑Parametric Alternative.
Proceedings of the 17th International Conference on Scientometrics and Informetrics, 2019

Toward Better Growth Policies in a Modern Economy: The Comparison of Three Complexity Indices.
Proceedings of the 17th International Conference on Scientometrics and Informetrics, 2019

The convergent validity of several (field-normalized) bibliometric indicators: How well does I3 perform for impact measurement?
Proceedings of the 17th International Conference on Scientometrics and Informetrics, 2019

Synergy in Innovation Systems Measured as Redundancy in Triple Helix Relations.
Proceedings of the Springer Handbook of Science and Technology Indicators., 2019

2018
Discontinuities in citation relations among journals: self-organized criticality as a model of scientific revolutions and change.
Scientometrics, 2018

Betweenness and diversity in journal citation networks as measures of interdisciplinarity - A tribute to Eugene Garfield.
Scientometrics, 2018

Diversity and interdisciplinarity: how can one distinguish and recombine disparity, variety, and balance?
Scientometrics, 2018

Count highly-cited papers instead of papers with h citations: use normalized citation counts and compare "like with like"!
Scientometrics, 2018

Reference publication year spectroscopy (RPYS) of Eugene Garfield's publications.
Scientometrics, 2018

Data-Mining the Foundational Patents of Photovoltaic Materials: An Application of Patent Citation Spectroscopy.
J. Sci. Res., 2018

Patent citation spectroscopy (PCS): Online retrieval of landmark patents based on an algorithmic approach.
J. Informetrics, 2018

The negative effects of citing with a national orientation in terms of recognition: National and international citations in natural-sciences papers from Germany, the Netherlands, and the UK.
J. Informetrics, 2018

Toward a calculus of redundancy: Signification, codification, and anticipation in cultural evolution.
J. Assoc. Inf. Sci. Technol., 2018

I3: A Non-Parametric Alternative to the Journal Impact Factor.
CoRR, 2018

Does the public discuss other topics on climate change than researchers? A comparison of networks based on author keywords and hashtags.
CoRR, 2018

hα: The Scientist as Chimpanzee or Bonobo.
CoRR, 2018

Revisiting Relative Indicators and Provisional Truths.
CoRR, 2018

Topic Modelling of Empirical Text Corpora: Validity, Reliability, and Reproducibility in Comparison to Semantic Maps.
CoRR, 2018

Regions, Innovation Systems, and the North-South Divide in Italy.
CoRR, 2018

The negative effects of citing with a national orientation in terms of recognition: national and international citations in papers from Germany, the Netherlands, and UK.
CoRR, 2018

2017
Growth of international collaboration in science: revisiting six specialties.
Scientometrics, 2017

Mapping patent classifications: portfolio and statistical analysis, and the comparison of strengths and weaknesses.
Scientometrics, 2017

Generating clustered journal maps: an automated system for hierarchical classification.
Scientometrics, 2017

Citation algorithms for identifying research milestones driving biomedical innovation.
Scientometrics, 2017

Full and fractional counting in bibliometric networks.
J. Informetrics, 2017

The positive side of discursive disagreements in the social sciences.
J. Informetrics, 2017

In Praise of Bibliometrics.
J. Informetrics, 2017

Heterogeneity in an undirected network: Definition and measurement.
J. Informetrics, 2017

Skewness of citation impact data and covariates of citation distributions: A large-scale empirical analysis based on Web of Science data.
J. Informetrics, 2017

The Power-weakness Ratios (PWR) as a Journal Indicator: Testing the "Tournaments" Metaphor in Citation Impact Studies.
J. Data Inf. Sci., 2017

Visualization of Disciplinary Profiles: Enhanced Science Overlay Maps.
J. Data Inf. Sci., 2017

Strategic intelligence on emerging technologies: Scientometric overlay mapping.
J. Assoc. Inf. Sci. Technol., 2017

Co-word maps and topic modeling: A comparison using small and medium-sized corpora (<i>N</i> < 1, 000).
J. Assoc. Inf. Sci. Technol., 2017

Can "hot spots" in the sciences be mapped using the dynamics of aggregated journal-journal citation Relations?
J. Assoc. Inf. Sci. Technol., 2017

Identification of long-term concept-symbols among citations: Do common intellectual histories structure citation behavior?
J. Assoc. Inf. Sci. Technol., 2017

Automated Analysis of Topic-Actor Networks on Twitter: New approach to the analysis of socio-semantic networks.
CoRR, 2017

Patent Citation Spectroscopy (PCS): Algorithmic retrieval of landmark patents.
CoRR, 2017

The geography of references in elite articles: What countries contribute to the archives of knowledge.
CoRR, 2017

Probing Multivariate Indicators for Academic Evaluation.
CoRR, 2017

Toward a Calculus of Redundancy: The feedback arrow of expectations in knowledge-based systems.
CoRR, 2017

2016
New features of CitedReferencesExplorer (CRExplorer).
Scientometrics, 2016

Measuring the match between evaluators and evaluees: cognitive distances between panel members and research groups at the journal level.
Scientometrics, 2016

The normalization of co-authorship networks in the bibliometric evaluation: the government stimulation programs of China and Korea.
Scientometrics, 2016

Professional and citizen bibliometrics: complementarities and ambivalences in the development and use of indicators - a state-of-the-art report.
Scientometrics, 2016

Cited references and Medical Subject Headings (MeSH) as two different knowledge representations: clustering and mappings at the paper level.
Scientometrics, 2016

RPYS i/o: software demonstration of a web-based tool for the historiography and visualization of citation classics, sleeping beauties and research fronts.
Scientometrics, 2016

Introducing CitedReferencesExplorer (CRExplorer): A program for reference publication year spectroscopy with cited references standardization.
J. Informetrics, 2016

Construction of a pragmatic base line for journal classifications and maps based on aggregated journal-journal citation relations.
J. Informetrics, 2016

The normalization of occurrence and Co-occurrence matrices in bibliometrics using <i>Cosine</i> similarities and <i>O</i><i>chiai</i> coefficients.
J. Assoc. Inf. Sci. Technol., 2016

Replicability and the public/private divide.
J. Assoc. Inf. Sci. Technol., 2016

Journal portfolio analysis for countries, cities, and organizations: Maps and comparisons.
J. Assoc. Inf. Sci. Technol., 2016

The operationalization of "fields" as WoS subject categories (WCs) in evaluative bibliometrics: The cases of "library and information science" and "science & technology studies".
J. Assoc. Inf. Sci. Technol., 2016

Aggregated journal-journal citation relations in scopus and web of science matched and compared in terms of networks, maps, and interactive overlays.
J. Assoc. Inf. Sci. Technol., 2016

The construction of interdisciplinarity: The development of the knowledge base and programmatic focus of the journal <i>C</i><i>limatic</i> <i>C</i><i>hange</i>, 1977-2013.
J. Assoc. Inf. Sci. Technol., 2016

Highly cited papers in Library and Information Science (LIS): Authors, institutions, and network structures.
J. Assoc. Inf. Sci. Technol., 2016

Citations: Indicators of Quality? The Impact Fallacy.
Frontiers Res. Metrics Anal., 2016

A Comparative Study of the Citation Impact of Chinese Journals with Government Priority Support.
Frontiers Res. Metrics Anal., 2016

Growth of International Cooperation in Science: Revisiting Six Case Studies.
CoRR, 2016

Introducing CitedReferencesExplorer (CRExplorer): A program for Reference Publication Year Spectroscopy with Cited References Disambiguation.
CoRR, 2016

Professional and Citizen Bibliometrics: Complementarities and ambivalences in the development and use of indicators.
CoRR, 2016

"Open Innovation" and "Triple Helix" Models of Innovation: Can Synergy in Innovation Systems Be Measured?
CoRR, 2016

A Reproducible Journal Classification and Global Map of Science Based on Aggregated Journal-Journal Citation Relations.
CoRR, 2016

Referenced Publication Year Spectroscopy (RPYS) and Algorithmic Historiography: The Bibliometric Reconstruction of András Schubert's Œuvre.
CoRR, 2016

Patent Portfolio Analysis of Cities: Statistics and Maps of Technological Inventiveness.
CoRR, 2016

What is the effect of synergy in international collaboration on regional economies?
CoRR, 2016

Economic and Technological Complexity: A Model Study of Indicators of Knowledge-based Innovation Systems.
CoRR, 2016

RPYS i/o: A web-based tool for the historiography and visualization of citation classics, sleeping beauties, and research fronts.
CoRR, 2016

Identification of long-term concept-symbols among citations: Can documents be clustered in terms of common intellectual histories?
CoRR, 2016

2015
Patents as instruments for exploring innovation dynamics: geographic and technological perspectives on "photovoltaic cells".
Scientometrics, 2015

Can intellectual processes in the sciences also be simulated? The anticipation and visualization of possible future states.
Scientometrics, 2015

Can technology life-cycles be indicated by diversity in patent classifications? The crucial role of variety.
Scientometrics, 2015

How have the Eastern European countries of the former Warsaw Pact developed since 1990? A bibliometric study.
Scientometrics, 2015

Topical connections between the institutions within an organisation (institutional co-authorships, direct citation links and co-citations).
Scientometrics, 2015

Networks of reader and country status: an analysis of Mendeley reader statistics.
PeerJ Comput. Sci., 2015

Identifying research fields within business and management: a journal cross-citation analysis.
J. Oper. Res. Soc., 2015

The dynamics of triads in aggregated journal-journal citation relations: Specialty developments at the above-journal level.
J. Informetrics, 2015

Does quality and content matter for citedness? A comparison with para-textual factors and over time.
J. Informetrics, 2015

Matching Medline/PubMed data with Web of Science: A routine in <i>R</i> language.
J. Assoc. Inf. Sci. Technol., 2015

Measuring triple-helix synergy in the Russian innovation systems at regional, provincial, and national levels.
J. Assoc. Inf. Sci. Technol., 2015

Journal maps, interactive overlays, and the measurement of interdisciplinarity on the basis of Scopus data (1996-2012).
J. Assoc. Inf. Sci. Technol., 2015

BRICS countries and scientific excellence: A bibliometric analysis of most frequently cited papers.
J. Assoc. Inf. Sci. Technol., 2015

A review of theory and practice in scientometrics.
Eur. J. Oper. Res., 2015

The Normalization of Occurrence and Co-occurrence Matrices in Bibliometrics using Cosine Similarities and Ochiai Coefficients.
CoRR, 2015

Regional and Global Science: Latin American and Caribbean publications in the SciELO Citation Index and the Web of Science.
CoRR, 2015

The Interaction of 'Supply', 'Demand', and 'Technological Capabilities' in terms of Medical Subject Headings: A Triple Helix Model of Medical Innovation.
CoRR, 2015

The Self-Organization of Meaning and the Reflexive Communication of Information.
CoRR, 2015

Co-word Maps and Topic Modeling: A Comparison from a User's Perspective.
CoRR, 2015

The Globalization of Academic Entrepreneurship? The Recent Growth (2009-2014) in University Patenting Decomposed.
CoRR, 2015

Scientometrics and Science Studies: From Words and Co-Words to Information and Probabilistic Entropy.
CoRR, 2015

Can the Intellectual Processes in Science Also Be Simulated? The Anticipation and Visualization of Possible Future States.
CoRR, 2015

Bibliometrics/Citation networks.
CoRR, 2015

Can "Hot Spots" in the Sciences Be Mapped Using the Dynamics of Aggregated Journal-Journal Citation Relations?
CoRR, 2015

Knowledge-generating Efficiency in Innovation Systems: The relation between structural and temporal effects.
CoRR, 2015

An International Comparison of the Citation Impact of Chinese Journals with Priority Funding.
Proceedings of the 15th International Conference on Scientometrics and Informetrics, Istanbul, Turkey, June 29, 2015

SciELO Citation Index and Web of Science: Distinctions in the Visibility of Regional.
Proceedings of the 15th International Conference on Scientometrics and Informetrics, Istanbul, Turkey, June 29, 2015

The dynamics of journal-journal citation relations: Can "hot spots" in the sciences be mapped?
Proceedings of the Information Science with Impact: Research in and for the Community, 2015

2014
Measuring the knowledge-based economy of China in terms of synergy among technological, organizational, and geographic attributes of firms.
Scientometrics, 2014

A routine for measuring synergy in university-industry-government relations: mutual information as a Triple-Helix and Quadruple-Helix indicator.
Scientometrics, 2014

Interactive overlay maps for US patent (USPTO) data based on International Patent Classification (IPC).
Scientometrics, 2014

A simulation model of the Triple Helix of university-industry-government relations and the decomposition of the redundancy.
Scientometrics, 2014

International collaboration clusters in Africa.
Scientometrics, 2014

The communication of expectations and individual understanding: Redundancy as reduction of uncertainty, and the processing of meaning.
Kybernetes, 2014

The European Union, China, and the United States in the top-1% and top-10% layers of most-frequently cited publications: Competition and collaborations.
J. Informetrics, 2014

Referenced Publication Years Spectroscopy applied to iMetrics: Scientometrics, Journal of Informetrics, and a relevant subset of JASIST.
J. Informetrics, 2014

How to improve the prediction based on citation impact percentiles for years shortly after the publication date?
J. Informetrics, 2014

On the meaningful and non-meaningful use of reference sets in bibliometrics.
J. Informetrics, 2014

Correction.
J. Informetrics, 2014

The "academic trace" of the performance matrix: A mathematical synthesis of the h-index and the integrated impact indicator (I3).
J. Assoc. Inf. Sci. Technol., 2014

Detecting the historical roots of research fields by reference publication year spectroscopy (RPYS).
J. Assoc. Inf. Sci. Technol., 2014

International coauthorship relations in the Social Sciences Citation Index: Is internationalization leading the Network?
J. Assoc. Inf. Sci. Technol., 2014

Mutual redundancies in interhuman communication systems: Steps toward a calculus of processing meaning.
J. Assoc. Inf. Sci. Technol., 2014

Interdisciplinarity at the journal and specialty level: The changing knowledge bases of the journal <i>cognitive science</i>.
J. Assoc. Inf. Sci. Technol., 2014

In search of a network theory of innovations: Relations, positions, and perspectives.
J. Assoc. Inf. Sci. Technol., 2014

Patterns of connections and movements in dual-map overlays: A new method of publication portfolio analysis.
J. Assoc. Inf. Sci. Technol., 2014

Group-based trajectory modeling (GBTM) of citations in scholarly literature: Dynamic qualities of "transient" and "sticky knowledge claims".
J. Assoc. Inf. Sci. Technol., 2014

Recent Developments in China-U.S. Science Cooperation.
CoRR, 2014

Matching MEDLINE/PubMed Data with Web of Science (WoS): A Routine in R-language.
CoRR, 2014

Can Synergy in Triple-Helix Relations be Quantified? A Review of the Development of the Triple-Helix Indicator.
CoRR, 2014

The "Tournaments" Metaphor in Citation Impact Studies: Power-Weakness Ratios (PWR) as a Journal Indicator.
CoRR, 2014

The Generation of Large Networks from Web-of-Science Data.
CoRR, 2014

Geographic and Technological Perspectives on "Photovoltaic Cells: " Patents as Instruments for Exploring Innovation Dynamics.
CoRR, 2014

Can Technology Life-Cycles Be Indicated by Diversity in Patent Classifications?
CoRR, 2014

Information, Meaning, and Intellectual Organization in Networks of Inter-Human Communication.
CoRR, 2014

Synergy cycles in the Norwegian innovation system: The relation between synergy and cycle values.
CoRR, 2014

2013
Innovation as a nonlinear process, the scientometric perspective, and the specification of an 'innovation opportunities explorer'.
Technol. Anal. Strateg. Manag., 2013

Information metrics (iMetrics): a research specialty with a socio-cognitive identity?
Scientometrics, 2013

A reply to Etzkowitz' comments to Leydesdorff and Martin (2010): technology transfer and the end of the Bayh-Dole effect.
Scientometrics, 2013

Global maps of science based on the new Web-of-Science categories.
Scientometrics, 2013

Statistics for the dynamic analysis of scientometric data: the evolution of the sciences in terms of trajectories and regimes.
Scientometrics, 2013

An evaluation of impacts in "Nanoscience & nanotechnology": steps towards standards for citation analysis.
Scientometrics, 2013

A bird's-eye view of scientific trading: Dependency relations among fields of science.
J. Informetrics, 2013

Decomposing social and semantic networks in emerging "big data" research.
J. Informetrics, 2013

The revised SNIP indicator of Elsevier's Scopus.
J. Informetrics, 2013

Does the specification of uncertainty hurt the progress of scientometrics?
J. Informetrics, 2013

Which percentile-based approach should be preferred for calculating normalized citation impact values? An empirical comparison of five approaches including a newly developed citation-rank approach (P100).
J. Informetrics, 2013

The use of percentiles and percentile rank classes in the analysis of bibliometric data: Opportunities and limits.
J. Informetrics, 2013

The validation of (advanced) bibliometric indicators through peer assessments: A comparative study using data from InCites and F1000.
J. Informetrics, 2013

The Triple Helix of university-industry-government relations at the country level and its dynamic evolution under the pressures of globalization.
J. Assoc. Inf. Sci. Technol., 2013

How can journal impact factors be normalized across fields of science? An assessment in terms of percentile ranks and fractional counts.
J. Assoc. Inf. Sci. Technol., 2013

The Swedish system of innovation: Regional synergies in a knowledge-based economy.
J. Assoc. Inf. Sci. Technol., 2013

Interactive overlays of journals and the measurement of interdisciplinarity on the basis of aggregated journal-journal citations.
J. Assoc. Inf. Sci. Technol., 2013

Field-normalized impact factors (IFs): A comparison of rescaling and fractionally counted IFs.
J. Assoc. Inf. Sci. Technol., 2013

Citation analysis with medical subject Headings (MeSH) using the Web of Knowledge: A new routine.
J. Assoc. Inf. Sci. Technol., 2013

Statistical tests and research assessments: A comment on Schneider (2012).
J. Assoc. Inf. Sci. Technol., 2013

International Co-authorship Relations in the Social Science Citation Index: Is Internationalization Leading the Network?
CoRR, 2013

Mapping the De Facto Governance of Emerging Science and Technologies
CoRR, 2013

Group-Based Trajectory Modeling of Citations in Scholarly Literature: Dynamic Qualities of "Transient" and "Sticky Knowledge Claims"
CoRR, 2013

Technology Transfer and the End of the Bayh-Dole Effect: Patents as an Analytical Lens on University-Industry-Government Relations
CoRR, 2013

Mutual Redundancies in Inter-human Communication Systems: Steps Towards a Calculus of Processing Meaning
CoRR, 2013

USPTO Patent Maps in Central Europe: Can "Cathedrals" be Built on the Ruins of Socialism?
CoRR, 2013

International Collaboration in Science: The Global Map and the Network
CoRR, 2013

The historical roots of iMetrics: Referenced Publication Years Spectroscopy (RPYS) routinized and applied to Scientometrics, Journal of Informetrics, and (a subset of) JASIST.
CoRR, 2013

Elsevier's Scopus has a revised SNIP indicator for journal ranking.
CoRR, 2013

Redundancy Generation in University-Industry-Government Relations: The Triple Helix Modeled, Measured, and Simulated.
CoRR, 2013

Which percentile-based approach should be preferred for calculating normalized citation impact values? An empirical comparison of five approaches including a newly developed one (P100).
CoRR, 2013

2012
Emerging search regimes: measuring co-evolutions among research, science, and society.
Technol. Anal. Strateg. Manag., 2012

A rejoinder on energy versus impact indicators.
Scientometrics, 2012

Testing differences statistically with the Leiden ranking.
Scientometrics, 2012

Alternatives to the journal impact factor: I3 and the top-10% (or top-25%?) of the most-highly cited papers.
Scientometrics, 2012

Has globalization strengthened South Korea's national research system? National and international dynamics of the Triple Helix of scientific co-authorship relationships in South Korea.
Scientometrics, 2012

The World of Science According to Performance Indicators Based on Percentile Ranking Normalization.
J. Sci. Res., 2012

Edited Volumes, Monographs and Book Chapters in the Book Citation Index (BKCI) and Science Citation Index (SCI, Sosci, A&HCI).
J. Sci. Res., 2012

Interactive overlays: A new method for generating global journal maps from Web-of-Science data.
J. Informetrics, 2012

McCall's area transformation versus the integrated impact indicator (I3).
J. Informetrics, 2012

Which are the best performing regions in information science in terms of highly cited papers? Some improvements of our previous mapping approaches.
J. Informetrics, 2012

The new Excellence Indicator in the World Report of the SCImago Institutions Rankings 2011.
J. Informetrics, 2012

Betweenness centrality as a driver of preferential attachment in the evolution of research collaboration networks.
J. Informetrics, 2012

Publish or patent: Bibliometric evidence for empirical trade-offs in national funding strategies.
J. Assoc. Inf. Sci. Technol., 2012

Bibliometric perspectives on medical innovation using the medical subject Headings of PubMed.
J. Assoc. Inf. Sci. Technol., 2012

Percentile ranks and the integrated impact indicator (<i>I3</i>).
J. Assoc. Inf. Sci. Technol., 2012

Mapping (USPTO) patent data using overlays to Google Maps.
J. Assoc. Inf. Sci. Technol., 2012

Accounting for the uncertainty in the evaluation of percentile ranks.
J. Assoc. Inf. Sci. Technol., 2012

Interdisciplinarity at the Journal and Specialty Level: The changing knowledge bases of the journal Cognitive Science
CoRR, 2012

Rotational Symmetry and the Transformation of Innovation Systems in a Triple Helix of University-Industry-Government Relations
CoRR, 2012

Field-normalized Impact Factors: A Comparison of Rescaling versus Fractionally Counted IFs
CoRR, 2012

Interactive Overlay Maps for US Patent (USPTO) Data Based on International Patent Classifications (IPC)
CoRR, 2012

Scientometrics
CoRR, 2012

Advances in Science Visualization: Social Networks, Semantic Maps, and Discursive Knowledge
CoRR, 2012

An Integrated Impact Indicator (I3): A New Definition of "Impact" with Policy Relevance
CoRR, 2012

Citation impact of papers published from six prolific countries: A national comparison based on InCites data
CoRR, 2012

How Can Journal Impact Factors be
CoRR, 2012

Edited Volumes, Monographs, and Chapters in the Book Citation Index (BKCI) and Science Citation Index (SCI, SoSCI, A&HCI).
CoRR, 2012

Bibliometric Perspectives on Medical Innovation using the Medical Subject Headings (MeSH) of PubMed
CoRR, 2012

Information visualization state of the art and future directions.
Proceedings of the Information, Interaction, Innovation: Celebrating the Past, Constructing the Present and Creating the Future, 2012

"Books" and "book chapters" in the book citation index (BKCI) and science citation index (SCI, SoSCI, A&HCI).
Proceedings of the Information, Interaction, Innovation: Celebrating the Past, Constructing the Present and Creating the Future, 2012

2011
A comment to the paper by Waltman et al., Scientometrics, 87, 467-481, 2011.
Scientometrics, 2011

Katy Börner: Atlas of science: visualizing what we know - The MIT Press, Cambridge, MA/London, UK, 2010, US$20.
Scientometrics, 2011

"Structuration" by intellectual organization: the configuration of knowledge in relations among structural components in networks of science.
Scientometrics, 2011

Fractional counting of citations in research evaluation: A cross- and interdisciplinary assessment of the Tsinghua University in Beijing.
J. Informetrics, 2011

The semantic mapping of words and co-words in contexts.
J. Informetrics, 2011

Indicators of the interdisciplinarity of journals: Diversity, centrality, and citations.
J. Informetrics, 2011

Remaining problems with the "New Crown Indicator" (MNCS) of the CWTS.
J. Informetrics, 2011

Mapping excellence in the geography of science: An approach based on Scopus data.
J. Informetrics, 2011

How to evaluate universities in terms of their relative citation impacts: Fractional counting of citations and the normalization of differences among disciplines.
J. Assoc. Inf. Sci. Technol., 2011

Local emergence and global diffusion of research technologies: An exploration of patterns of network formation.
J. Assoc. Inf. Sci. Technol., 2011

Scopus' SNIP indicator: Reply to Moed.
J. Assoc. Inf. Sci. Technol., 2011

The structure of the <i>Arts & Humanities Citation Index</i>: A mapping on the basis of aggregated citations among 1, 157 journals.
J. Assoc. Inf. Sci. Technol., 2011

Turning the tables on citation analysis one more time: Principles for comparing sets of documents.
J. Assoc. Inf. Sci. Technol., 2011

Integrated impact indicators compared with impact factors: An alternative research design with policy implications.
J. Assoc. Inf. Sci. Technol., 2011

How fractional counting of citations affects the impact factor: Normalization in terms of differences in citation potentials among fields of science.
J. Assoc. Inf. Sci. Technol., 2011

Which cities produce more excellent papers than can be expected? A new mapping approach, using Google Maps, based on statistical significance testing.
J. Assoc. Inf. Sci. Technol., 2011

Visualization and Analysis of Frames in Collections of Messages: Content Analysis and the Measurement of Meaning
CoRR, 2011

Percentile Ranks and the Integrated Impact Indicator (I3)
CoRR, 2011

The Disclosure of University Research for Societal Demand: A Non-Market Perspective on the "Third Mission"
CoRR, 2011

World Shares of Publications of the USA, EU-27, and China Compared and Predicted using the New Interface of the Web-of-Science versus Scopus.
CoRR, 2011

Which cities' paper output and citation impact are above expectation in information science? Some improvements of our previous mapping approaches.
CoRR, 2011

Hyperincursive Cogitata and Incursive Cogitantes: Scholarly Discourse as a Strongly Anticipatory System
CoRR, 2011

Book review: Katy Börner, Atlas of Science: Visualizing What We Know. Cambridge, MA/ London UK: The MIT Press, 2010
CoRR, 2011

How journal rankings can suppress interdisciplinarity. The case of innovation studies in business and management
CoRR, 2011

Integrated Impact Indicators (I3) compared with Impact Factors (IFs): An alternative research design with policy implications
CoRR, 2011

Which cities produce excellent papers worldwide more than can be expected? A new mapping approach--using Google Maps--based on statistical significance testing
CoRR, 2011

Citation analysis cannot legitimate the strategic selection of excellence
CoRR, 2011

Non-consistency, non-cited items, and the impact factor: A consequence of the arithmetic
CoRR, 2011

The structure of the Arts & Humanities Citation Index: A mapping on the basis of aggregated citations among 1,157 journals
CoRR, 2011

Normalizing the measurement of citation performance: Principles for comparing sets of documents
CoRR, 2011

2010
The triple helix perspective of innovation systems.
Technol. Anal. Strateg. Manag., 2010

The decline of university patenting and the end of the Bayh-Dole effect.
Scientometrics, 2010

Caveats for the journal and field normalizations in the CWTS ("Leiden") evaluations of research performance.
J. Informetrics, 2010

Normalization at the field level: Fractional counting of citations.
J. Informetrics, 2010

A meta-evaluation of scientific research proposals: Different ways of comparing rejected to awarded applications.
J. Informetrics, 2010

A comparative study on communication structures of Chinese journals in the social sciences.
J. Assoc. Inf. Sci. Technol., 2010

Science overlay maps: A new tool for research policy and library management.
J. Assoc. Inf. Sci. Technol., 2010

Maps on the basis of the <i>Arts & Humanities Citation Index</i>: The journals <i>Leonardo</i> and <i>Art Journal</i> versus "digital humanities" as a topic.
J. Assoc. Inf. Sci. Technol., 2010

Mapping the geography of science: Distribution patterns and networks of relations among cities and institutes.
J. Assoc. Inf. Sci. Technol., 2010

Scopus's source normalized impact per paper (SNIP) versus a journal impact factor based on fractional counting of citations.
J. Assoc. Inf. Sci. Technol., 2010

Journal maps on the basis of <i>Scopus</i> data: A comparison with the <i>Journal Citation Reports</i> of the ISI.
J. Assoc. Inf. Sci. Technol., 2010

The communication of meaning and the structuration of expectations: Giddens' "structuration theory" and Luhmann's "self-organization".
J. Assoc. Inf. Sci. Technol., 2010

Redundancy in Systems Which Entertain a Model of Themselves: Interaction Information and the Self-Organization of Anticipation.
Entropy, 2010

What the Cited and Citing Environments Reveal of "Advances in Atmospheric Sciences"?
CoRR, 2010

Fractional counting of citations in research evaluation: An option for cross- and interdisciplinary assessments
CoRR, 2010

"Meaning" as a sociological concept: A review of the modeling, mapping, and simulation of the communication of knowledge and meaning
CoRR, 2010

How Do Emerging Technologies Conquer the World? An Exploration of Patterns of Diffusion and Network Formation
CoRR, 2010

The Development of the Journal Environment of Leonardo
CoRR, 2010

How fractional counting affects the Impact Factor: Steps towards field-independent classifications of scholarly journals and literature
CoRR, 2010

Scopus' SNIP Indicator
CoRR, 2010

Eugene Garfield and Algorithmic Historiography: Co-Words, Co-Authors, and Journal Names
CoRR, 2010

The Production of Probabilistic Entropy in Structure/Action Contingency Relations
CoRR, 2010

What Can Heterogeneity Add to the Scientometric Map? Steps towards algorithmic historiography
CoRR, 2010

The Citation Field of Evolutionary Economics
CoRR, 2010

Implicit media frames: Automated analysis of public debate on artificial sweeteners
CoRR, 2010

Distributed scientific communication in the European information society: Some cases of "Mode 2" fields of research
CoRR, 2010

Quality Control and Validation Boundaries in a Triple Helix of University-Industry-Government: 'Mode 2' and the Future of University Research
CoRR, 2010

Knowledge-Based Innovation Systems and the Model of a Triple Helix of University-Industry-Government Relations
CoRR, 2010

The knowledge-based economy and the triple helix model.
Annu. Rev. Inf. Sci. Technol., 2010

2009
Knowledge linkage structures in communication studies using citation analysis among communication journals.
Scientometrics, 2009

Is the United States losing ground in science? A global perspective on the world science system.
Scientometrics, 2009

The dynamics of exchanges and references among scientific texts, and the autopoiesis of discursive knowledge.
J. Informetrics, 2009

Macro-level indicators of the relations between research funding and research output.
J. Informetrics, 2009

Content-based and algorithmic classifications of journals: Perspectives on the dynamics of scientific communication and indexer effects.
J. Assoc. Inf. Sci. Technol., 2009

An indicator of research front activity: Measuring intellectual organization as uncertainty reduction in document sets.
J. Assoc. Inf. Sci. Technol., 2009

National and international dimensions of the Triple Helix in Japan: University-industry-government versus international coauthorship relations.
J. Assoc. Inf. Sci. Technol., 2009

A global map of science based on the ISI subject categories.
J. Assoc. Inf. Sci. Technol., 2009

The delineation of an interdisciplinary specialty in terms of a journal set: The case of communication studies.
J. Assoc. Inf. Sci. Technol., 2009

How are new citation-based journal indicators adding to the bibliometric toolbox?
J. Assoc. Inf. Sci. Technol., 2009

The relation between Pearson's correlation coefficient <i>r</i> and Salton's cosine measure.
J. Assoc. Inf. Sci. Technol., 2009

Definition and identification of journals as bibliographic and subject entities: Librarianship versus ISI <i>Journal Citation Reports</i> methods and their effect on citation measures.
J. Assoc. Inf. Sci. Technol., 2009

Interaction information: linear and nonlinear interpretations.
Int. J. Gen. Syst., 2009

Maps on the basis of the Arts & Humanities Citation Index: The journals Leonardo and Art Journal versus "Digital Humanities" as a topic
CoRR, 2009

Communication and Knowledge: How is the knowledge base of an economy constructed?
CoRR, 2009

A study of seismology as a dynamic, distributed area of scientific research
CoRR, 2009

'Interaction' versus 'action' in Luhmann's sociology of communication
CoRR, 2009

Measuring the Knowledge Base: A Program of Innovation Studies
CoRR, 2009

The Construction and Globalization of the Knowledge Base in Inter-human Communication Systems
CoRR, 2009

Communication of Science Shop Mediation: A Kaleidoscope of University-Society Relations
CoRR, 2009

Scientometrics and the evaluation of European integration
CoRR, 2009

Giddens' "structuration," Luhmann's "self-organization," and the operationalization of the dynamics of meaning
CoRR, 2009

Multiple Presents: How Search Engines Re-write the Past
CoRR, 2009

Can Scientific Journals be Classified in terms of Aggregated Journal-Journal Citation Relations using the Journal Citation Reports?
CoRR, 2009

Environment and Planning B as a Journal: The interdisciplinarity of its environment and the citation impact
CoRR, 2009

Indicators of Structural Change in the Dynamics of Science: Entropy Statistics of the SCI Journal Citation Reports
CoRR, 2009

A Comparison between the China Scientific and Technical Papers and Citations Database and the Science Citation Index in terms of journal hierarchies and inter-journal citation relations
CoRR, 2009

Citation Environment of Angewandte Chemie
CoRR, 2009

Journals as constituents of scientific discourse: economic heterodoxy
CoRR, 2009

Main-path analysis and path-dependent transitions in HistCite(TM)-based historiograms
CoRR, 2009

On the Normalization and Visualization of Author Co-Citation Data Salton's Cosine versus the Jaccard Index
CoRR, 2009

Caveats for the Use of Citation Indicators in Research and Journal Evaluations
CoRR, 2009

Knowledge linkage structures in communication studies using citation analysis among communication journals
CoRR, 2009

The relation between Pearson's correlation coefficient r and Salton's cosine measure
CoRR, 2009

Retrieval of very large numbers of items in the Web of Science: an exercise to develop accurate search strategies
CoRR, 2009

2008
Korean journals in the Science Citation Index: What do they reveal about the intellectual structure of S&T in Korea?
Scientometrics, 2008

The delineation of nanoscience and nanotechnology in terms of journals and patents: A most recent update.
Scientometrics, 2008

International collaboration in science and the formation of a core group.
J. Informetrics, 2008

Main-path analysis and path-dependent transitions in HistCite<sup>TM</sup>-based historiograms.
J. Assoc. Inf. Sci. Technol., 2008

Co-word analysis using the Chinese character set.
J. Assoc. Inf. Sci. Technol., 2008

Dynamic animations of journal maps: Indicators of structural changes and interdisciplinary developments.
J. Assoc. Inf. Sci. Technol., 2008

Patent classifications as indicators of intellectual organization.
J. Assoc. Inf. Sci. Technol., 2008

<i>Caveats</i> for the use of citation indicators in research and journal evaluations.
J. Assoc. Inf. Sci. Technol., 2008

On the normalization and visualization of author co-citation data: Salton's Cosine <i>versus</i> the Jaccard index.
J. Assoc. Inf. Sci. Technol., 2008

Configurational Information as Potentially Negative Entropy: The Triple Helix Model.
Entropy, 2008

Tracing "interdisciplinarity" using time series of journal maps: The visualization and dynamic animation of journal-journal citation relations.
Proceedings of the People Transforming Information - Information Transforming People, 2008

2007
The citation impacts and citation environments of Chinese journals in mathematics.
Scientometrics, 2007

Knowledge emergence in scientific communication: from "fullerenes" to "nanotubes".
Scientometrics, 2007

Nanotechnology as a field of science: Its delineation in terms of journals and patents.
Scientometrics, 2007

The scientometrics of a Triple Helix of university-industry-government relations (Introduction to the topical issue).
Scientometrics, 2007

Mapping interdisciplinarity at the interfaces between the Science Citation Index and the Social Science Citation Index.
Scientometrics, 2007

Clustering methodologies for identifying country core competencies.
J. Inf. Sci., 2007

A comparison between the <i>China Scientific and Technical Papers and Citations Database</i> and the <i>Science Citation Index</i> in terms of journal hierarchies and interjournal citation relations.
J. Assoc. Inf. Sci. Technol., 2007

Should co-occurrence data be normalized? A rejoinder.
J. Assoc. Inf. Sci. Technol., 2007

Betweenness centrality as an indicator of the interdisciplinarity of scientific journals.
J. Assoc. Inf. Sci. Technol., 2007

Visualization of the citation impact environments of scientific journals: An online mapping exercise.
J. Assoc. Inf. Sci. Technol., 2007

2006
Measuring the meaning of words in contexts: An automated analysis of controversies about 'Monarch butterflies, ' 'Frankenfoods, ' and 'stem cells'.
Scientometrics, 2006

Multiple presents: how search engines rewrite the past.
New Media Soc., 2006

The biological metaphor of a second-order observer and the sociological discourse.
Kybernetes, 2006

The two faces of American power: Military and political communication during the Cuban missile crisis.
Kybernetes, 2006

Co-occurrence matrices and their applications in information science: Extending ACA to the Web environment.
J. Assoc. Inf. Sci. Technol., 2006

Classification and powerlaws: The logarithmic transformation.
J. Assoc. Inf. Sci. Technol., 2006

Can scientific journals be classified in terms of aggregated journal-journal citation relations using the <i>Journal Citation Reports</i>?
J. Assoc. Inf. Sci. Technol., 2006

The Import and Export of Cognitive Science.
Cogn. Sci., 2006

2005
A comparison of the knowledge-based innovation systems in the economies of South Korea and the Netherlands using Triple Helix indicators.
Scientometrics, 2005

Are the contributions of China and Korea upsetting the world system of science?
Scientometrics, 2005

Walk-round.
Scientometrics, 2005

Anticipatory Systems and the Processing of Meaning: a Simulation Study Inspired by Luhmann's Theory of Social Systems.
J. Artif. Soc. Soc. Simul., 2005

Mapping the Chinese Science Citation Database in terms of aggregated journal-journal citation relations.
J. Assoc. Inf. Sci. Technol., 2005

Similarity measures, author cocitation analysis, and information theory.
J. Assoc. Inf. Sci. Technol., 2005

2004
Top-down decomposition of the <i>Journal Citation Report</i>of the <i>Social Science Citation Index</i>: Graph- and factor-analytical approaches.
Scientometrics, 2004

Clusters and maps of science journals based on bi-connected graphs in Journal Citation Reports.
J. Documentation, 2004

The university-industry knowledge relationship: Analyzing patents and the science base of technologies.
J. Assoc. Inf. Sci. Technol., 2004

Internet time and the reliability of search engines.
First Monday, 2004

Mapping the Chinese Science Citation Database.
Proceedings of the Managing and Enhancing Information: Cultures and Conflicts, 2004

2003
Seismology as a dynamic, distributed area of scientific research.
Scientometrics, 2003

The Triple Helix of university-industry-government relations.
Scientometrics, 2003

The mutual information of university-industry-government relations: An indicator of the Triple Helix dynamics.
Scientometrics, 2003

Can networks of journal-journal citations be used as indicators of change in the social sciences?
J. Documentation, 2003

Rejoinder to Van den Besselaar's letter entitled Descriptive statistics, inferential statistics, rhetorical statistics.
J. Assoc. Inf. Sci. Technol., 2003

Empirical evidence of self-organization? A rejoinder.
J. Assoc. Inf. Sci. Technol., 2003

2002
Indicators of structural change in the dynamics of science: Entropy statistics of the <i>SCI Journal Citation Reports</i>.
Scientometrics, 2002

Dynamic and evolutionary updates of classificatory schemes in scientific journal structures.
J. Assoc. Inf. Sci. Technol., 2002

2001
Why Catalonia cannot be considered as a regional innovation system.
Scientometrics, 2001

Technology and Culture: the Dissemination and the Potential 'Lock-in' of New Technologies.
J. Artif. Soc. Soc. Simul., 2001

The self-organization of the European Information Society: The case of biotechnology.
J. Assoc. Inf. Sci. Technol., 2001

2000
Threaded Email Messages in Self-Organization and Science & Technology Studies Oriented Mailing Lists.
Scientometrics, 2000

Is the European Union Becoming a Single Publication System?
Scientometrics, 2000

1999
Between texts and contexts: Advances in theories of citation? (A rejoinder).
Scientometrics, 1999

1998
Theories of citation?
Scientometrics, 1998

1997
Introduction.
Scientometrics, 1997

Scientometrics and communication theory: Towards theoretically informed indicators.
Scientometrics, 1997

Why Words and Co-Words Cannot Map the Development of the Sciences.
J. Am. Soc. Inf. Sci., 1997

1996
Mapping Change in Scientific Specialties: A Scientometric Reconstruction of the Development of Artificial Intelligence.
J. Am. Soc. Inf. Sci., 1996

1994
Has Price's dream come true: Is scientometrics a hard science?
Scientometrics, 1994

Crisis or critique?
Scientometrics, 1994

The generation of aggregated journal-journal citation maps on the basis of the CD-ROM version of the Science Citation Index.
Scientometrics, 1994

Book review.
Scientometrics, 1994

1993
The delineation of specialties in terms of journals using the dynamic journal set of the SCI.
Scientometrics, 1993

Research Performance in Artificial Intelligence and Robotics: An International Comparison.
AI Commun., 1993

1992
A reply to Courtial's comments.
Scientometrics, 1992

A validation study of "LEXIMAPPE".
Scientometrics, 1992

Irreversibilites in science and technology networks: An empirical and analytical approach.
Scientometrics, 1992

1991
On the "scientometric decline" of British science. One additional graph in reply to Ben Martin.
Scientometrics, 1991

1990
The prediction of science indicators using information theory.
Scientometrics, 1990

Relations among science indicators or more generally among anything one might wish to count about texts - II. The dynamics of science.
Scientometrics, 1990

Relations among science indicators or more generally among anything one might wish to count about texts - I. The static model.
Scientometrics, 1990

1989
The relations between qualitative theory and scientometric methods in science and technology studies - Introduction to the topical issue.
Scientometrics, 1989

The science citation index and the measurement of national performance in terms of numbers of scientific publications.
Scientometrics, 1989

Teletraffic conferences: Studying a field of engineering science.
Scientometrics, 1989

Citations: Indicators of significance?
Scientometrics, 1989

1987
Towards a theory of citation?
Scientometrics, 1987

Various methods for the mapping of science.
Scientometrics, 1987

1986
The development of frames of references.
Scientometrics, 1986

1981
Some social-psychological aspects of becoming a physicist.
Scientometrics, 1981


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