IDEAS home Printed from https://ideas.repec.org/f/ple258.html
   My authors  Follow this author

Loet Leydesdorff

(deceased)

Personal Details

This person is deceased (Date: 11 Mar 2023)
First Name:Loet
Middle Name:
Last Name:Leydesdorff
Suffix:
RePEc Short-ID:ple258
http://www.leydesdorff.net/list.htm
Terminal Degree:1984 (from RePEc Genealogy)

Research output

as
Jump to: Working papers Articles Chapters

Working papers

  1. Abramo, Giovanni & Aguillo, Isidro F. & Aksnes, Dag W. & Boyack, Kevin & Burrell, Quentin L. & Campanario, Juan Miguel & Chinchilla-Rodriguez, Zaida & Costas, Rodrigo & D'Angelo, Ciriaco Andrea & Harz, 2023. "Retraction of Predatory publishing in Scopus : Evidence on cross-country differences lacks justification (Retraction of Vol 126, Pg 1897, 2021)," Other publications TiSEM e22b5042-c7f6-44f6-a989-d, Tilburg University, School of Economics and Management.
  2. Cinzia Daraio & Simone Di Leo & Loet Leydesdorff, 2022. "Using the Leiden Rankings as a Heuristics: Evidence from Italian universities in the European landscape," LEM Papers Series 2022/08, Laboratory of Economics and Management (LEM), Sant'Anna School of Advanced Studies, Pisa, Italy.
  3. Henriette Ruhrmann & Michael Fritsch & Loet Leydesdorff, 2020. "Smart Specialization Strategies at National, Regional, or Local Levels? Synergy and Policy-making in German Systems of Innovation," Jena Economics Research Papers 2020-007, Friedrich-Schiller-University Jena.
  4. Loet Leydesdorff & Henry Etzkowitz & Inga Ivanova & Martin Meyer, 2017. "The Measurement of Synergy in Innovation Systems: Redundancy Generation in a Triple Helix of University-Industry-Government Relations," SPRU Working Paper Series 2017-08, SPRU - Science Policy Research Unit, University of Sussex Business School.
  5. Inga Ivanova & Oivind Strand & Duncan Kushnir & Loet Leydesdorff, 2016. "Economic and Technological Complexity: A Model Study of Indicators of Knowledge-based Innovation Systems," Papers 1602.02348, arXiv.org, revised Dec 2016.
  6. Lengyel, Balázs & Leydesdorff, Loet, 2015. "The Effects of FDI on Innovation Systems in Hungarian Regions: Where is the Synergy Generated?," MPRA Paper 73945, University Library of Munich, Germany.
  7. Loet Leydesdorff & Gaston Heimeriks & Daniele Rotolo, 2015. "Journal Portfolio Analysis for Countries, Cities, and Organizations: Maps and Comparisons?," SPRU Working Paper Series 2015-11, SPRU - Science Policy Research Unit, University of Sussex Business School.
  8. Inga Ivanova & Oivind Strand & Duncan Kushnir & Loet Leydesdorff, 2015. "The Efficiency of Triple-Helix Relations in Innovation Systems: Measuring the Connection between a Country’S Net Income and its Knowledge Base," HSE Working papers WP BRP 55/STI/2015, National Research University Higher School of Economics.
  9. Daniele Rotolo & Loet Leydesdorff, 2014. "Matching MEDLINE/PubMed Data with Web of Science (WOS): A Routine in R language," SPRU Working Paper Series 2014-14, SPRU - Science Policy Research Unit, University of Sussex Business School.
  10. Daniele Rotolo & Ismael Rafols & Michael Hopkins & Loet Leydesdorff, 2014. "Scientometric Mapping as a Strategic Intelligence Tool for the Governance of Emerging Technologies," SPRU Working Paper Series 2014-10, SPRU - Science Policy Research Unit, University of Sussex Business School.
  11. Inga Ivanova & Oivind Strand & Loet Leydesdorff, 2014. "Synergy cycles in the Norwegian innovation system: The relation between synergy and cycle values," Papers 1409.2760, arXiv.org.
  12. Ismael Rafols & Loet Leydesdorff & Alice O'Hare & Paul Nightingale & Andy Stirling, 2011. "How Journal Rankings can suppress Interdisciplinary Research – A Comparison between Innovation Studies and Business & Management," DRUID Working Papers 11-05, DRUID, Copenhagen Business School, Department of Industrial Economics and Strategy/Aalborg University, Department of Business Studies.
  13. Ismael Rafols & Alan Porter & Loet Leydesdorff, 2009. "Overlay Maps of Science: a New Tool for Research Policy," SPRU Working Paper Series 179, SPRU - Science Policy Research Unit, University of Sussex Business School.
  14. Wilfred Dolfsma, 2008. "Innovation Systems as Patent Networks," Working Papers id:1651, eSocialSciences.
  15. Leydesdorff, Loet & Fritsch, Michael, 2005. "Measuring the Knowledge Base of Regional Innovation Systems in Germany in terms of a Triple Helix Dynamics," Freiberg Working Papers 2005/10, TU Bergakademie Freiberg, Faculty of Economics and Business Administration.
  16. Dolfsma, W.A. & Leydesdorff, L. & van der Panne, G., 2004. "Measuring the Knowledge Base of an Economy in terms of Triple-Helix Relations among 'Technology, Organization, and Territory'," ERIM Report Series Research in Management ERS-2004-034-ORG, Erasmus Research Institute of Management (ERIM), ERIM is the joint research institute of the Rotterdam School of Management, Erasmus University and the Erasmus School of Economics (ESE) at Erasmus University Rotterdam.

    repec:hig:wpaper:98sti2019 is not listed on IDEAS

Articles

  1. Giovanni Abramo & Isidro F. Aguillo & Dag W. Aksnes & Kevin Boyack & Quentin L. Burrell & Juan Miguel Campanario & Zaida Chinchilla-Rodríguez & Rodrigo Costas & Ciriaco Andrea D’Angelo & Anne-Wil Harz, 2023. "Retraction of Predatory publishing in Scopus: evidence on cross-country differences lacks justification," Scientometrics, Springer;Akadémiai Kiadó, vol. 128(2), pages 1459-1461, February.
  2. Cinzia Daraio & Simone Di Leo & Loet Leydesdorff, 2023. "A heuristic approach based on Leiden rankings to identify outliers: evidence from Italian universities in the European landscape," Scientometrics, Springer;Akadémiai Kiadó, vol. 128(1), pages 483-510, January.
  3. Henriette Ruhrmann & Michael Fritsch & Loet Leydesdorff, 2022. "Synergy and policy-making in German innovation systems: Smart Specialisation Strategies at national, regional, local levels?," Regional Studies, Taylor & Francis Journals, vol. 56(9), pages 1468-1479, September.
  4. Caroline S. Wagner & Lin Zhang & Loet Leydesdorff, 2022. "A discussion of measuring the top-1% most-highly cited publications: quality and impact of Chinese papers," Scientometrics, Springer;Akadémiai Kiadó, vol. 127(4), pages 1825-1839, April.
  5. Loet Leydesdorff & Lutz Bornmann & Caroline S. Wagner, 2021. "Improved clusterings and visualizations of 11,359 journals in the JCRs 2015," Scientometrics, Springer;Akadémiai Kiadó, vol. 126(6), pages 5353-5354, June.
  6. Mark William Johnson & Loet Leydesdorff, 2021. "Redundancies in the communication of music: An operationalization of Schutz's ‘Making Music Together’," Systems Research and Behavioral Science, Wiley Blackwell, vol. 38(6), pages 923-939, November.
  7. Loet Leydesdorff & Inga Ivanova, 2021. "The measurement of “interdisciplinarity” and “synergy” in scientific and extra‐scientific collaborations," Journal of the Association for Information Science & Technology, Association for Information Science & Technology, vol. 72(4), pages 387-402, April.
  8. Leydesdorff, Loet & Bornmann, Lutz, 2021. "Disruption indices and their calculation using web-of-science data: Indicators of historical developments or evolutionary dynamics?," Journal of Informetrics, Elsevier, vol. 15(4).
  9. Iina Hellsten & Loet Leydesdorff, 2020. "Automated analysis of actor–topic networks on twitter: New approaches to the analysis of socio‐semantic networks," Journal of the Association for Information Science & Technology, Association for Information Science & Technology, vol. 71(1), pages 3-15, January.
  10. Loet Leydesdorff & Lutz Bornmann, 2020. "“Interdisciplinarity” and “Synergy” in the Œuvre of Judit Bar-Ilan," Scientometrics, Springer;Akadémiai Kiadó, vol. 123(3), pages 1247-1260, June.
  11. Inga Ivanova & Nataliya Smorodinskaya & Loet Leydesdorff, 2020. "On measuring complexity in a post-industrial economy: the ecosystem’s approach," Quality & Quantity: International Journal of Methodology, Springer, vol. 54(1), pages 197-212, February.
  12. Prathap, Gangan & Mukherjee, Somenath & Leydesdorff, Loet, 2020. "Within-journal self-citations and the Pinski-Narin influence weights," Journal of Informetrics, Elsevier, vol. 14(1).
  13. Xiaozan Lyu & Ping Zhou & Loet Leydesdorff, 2020. "Eco-system mapping of techno-science linkages at the level of scholarly journals and fields," Scientometrics, Springer;Akadémiai Kiadó, vol. 124(3), pages 2037-2055, September.
  14. Lutz Bornmann & Loet Leydesdorff, 2020. "Historical roots of Judit Bar-Ilan’s research: a cited-references analysis using CRExplorer," Scientometrics, Springer;Akadémiai Kiadó, vol. 123(3), pages 1193-1200, June.
  15. Inga Ivanova & Øivind Strand & Loet Leydesdorff, 2019. "What Is the Effect of Synergy Provided by International Collaborations on Regional Economies?," Journal of the Knowledge Economy, Springer;Portland International Center for Management of Engineering and Technology (PICMET), vol. 10(1), pages 18-34, March.
  16. Loet Leydesdorff & Igone Porto-Gomez, 2019. "Measuring the expected synergy in Spanish regional and national systems of innovation," The Journal of Technology Transfer, Springer, vol. 44(1), pages 189-209, February.
  17. Loet Leydesdorff & Lutz Bornmann & Jonathan Adams, 2019. "The integrated impact indicator revisited (I3*): a non-parametric alternative to the journal impact factor," Scientometrics, Springer;Akadémiai Kiadó, vol. 119(3), pages 1669-1694, June.
  18. Lutz Bornmann & Alexander Tekles & Loet Leydesdorff, 2019. "How well does I3 perform for impact measurement compared to other bibliometric indicators? The convergent validity of several (field-normalized) indicators," Scientometrics, Springer;Akadémiai Kiadó, vol. 119(2), pages 1187-1205, May.
  19. Porto-Gomez, Igone & Zabala-Iturriagagoitia, Jon Mikel & Leydesdorff, Loet, 2019. "Innovation systems in México: A matter of missing synergies," Technological Forecasting and Social Change, Elsevier, vol. 148(C).
  20. Loet Leydesdorff & Lutz Bornmann & Tobias Opthof, 2019. "hα: the scientist as chimpanzee or bonobo," Scientometrics, Springer;Akadémiai Kiadó, vol. 118(3), pages 1163-1166, March.
  21. Haunschild, Robin & Leydesdorff, Loet & Bornmann, Lutz & Hellsten, Iina & Marx, Werner, 2019. "Does the public discuss other topics on climate change than researchers? A comparison of explorative networks based on author keywords and hashtags," Journal of Informetrics, Elsevier, vol. 13(2), pages 695-707.
  22. Leydesdorff, Loet & Wagner, Caroline S. & Bornmann, Lutz, 2019. "Interdisciplinarity as diversity in citation patterns among journals: Rao-Stirling diversity, relative variety, and the Gini coefficient," Journal of Informetrics, Elsevier, vol. 13(1), pages 255-269.
  23. Loet Leydesdorff & Lutz Bornmann & John Mingers, 2019. "Statistical significance and effect sizes of differences among research universities at the level of nations and worldwide based on the leiden rankings," Journal of the Association for Information Science & Technology, Association for Information Science & Technology, vol. 70(5), pages 509-525, May.
  24. Loet Leydesdorff & Caroline S. Wagner & Igone Porto‐Gomez & Jordan A. Comins & Fred Phillips, 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," Journal of the Association for Information Science & Technology, Association for Information Science & Technology, vol. 70(10), pages 1108-1123, October.
  25. Inga Ivanova & Oivind Strand & Loet Leydesdorff, 2019. "The Synergy and Cycle Values in Regional Innovation Systems: The Case of Norway," Foresight and STI Governance (Foresight-Russia till No. 3/2015), National Research University Higher School of Economics, vol. 13(1), pages 48-61.
  26. Loet Leydesdorff & Lutz Bornmann & Caroline S. Wagner, 2019. "The Relative Influences of Government Funding and International Collaboration on Citation Impact," Journal of the Association for Information Science & Technology, Association for Information Science & Technology, vol. 70(2), pages 198-201, February.
  27. Inga Ivanova & Øivind Strand & Loet Leydesdorff, 2019. "An Eco-Systems Approach To Constructing Economic Complexity Measures: Endogenization Of The Technological Dimension Using Lotka–Volterra Equations," Advances in Complex Systems (ACS), World Scientific Publishing Co. Pte. Ltd., vol. 22(01), pages 1-21, February.
  28. Lutz Bornmann & Robin Haunschild & Loet Leydesdorff, 2018. "Reference publication year spectroscopy (RPYS) of Eugene Garfield’s publications," Scientometrics, Springer;Akadémiai Kiadó, vol. 114(2), pages 439-448, February.
  29. Comins, Jordan A. & Carmack, Stephanie A. & Leydesdorff, Loet, 2018. "Patent citation spectroscopy (PCS): Online retrieval of landmark patents based on an algorithmic approach," Journal of Informetrics, Elsevier, vol. 12(4), pages 1223-1231.
  30. Loet Leydesdorff, 2018. "Diversity and interdisciplinarity: how can one distinguish and recombine disparity, variety, and balance?," Scientometrics, Springer;Akadémiai Kiadó, vol. 116(3), pages 2113-2121, September.
  31. Loet Leydesdorff & Caroline S. Wagner & Lutz Bornmann, 2018. "Betweenness and diversity in journal citation networks as measures of interdisciplinarity—A tribute to Eugene Garfield," Scientometrics, Springer;Akadémiai Kiadó, vol. 114(2), pages 567-592, February.
  32. Loet Leydesdorff & Caroline S. Wagner & Lutz Bornmann, 2018. "Discontinuities in citation relations among journals: self-organized criticality as a model of scientific revolutions and change," Scientometrics, Springer;Akadémiai Kiadó, vol. 116(1), pages 623-644, July.
  33. Loet Leydesdorff & Mark W. Johnson & Inga Ivanova, 2018. "Toward a calculus of redundancy: Signification, codification, and anticipation in cultural evolution," Journal of the Association for Information Science & Technology, Association for Information Science & Technology, vol. 69(10), pages 1181-1192, October.
  34. Lutz Bornmann & Loet Leydesdorff, 2018. "Count highly-cited papers instead of papers with h citations: use normalized citation counts and compare “like with like”!," Scientometrics, Springer;Akadémiai Kiadó, vol. 115(2), pages 1119-1123, May.
  35. Dieter Franz Kogler & Gaston Heimeriks & Loet Leydesdorff, 2018. "Patent portfolio analysis of cities: statistics and maps of technological inventiveness," European Planning Studies, Taylor & Francis Journals, vol. 26(11), pages 2256-2278, November.
  36. Bornmann, Lutz & Adams, Jonathan & Leydesdorff, Loet, 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," Journal of Informetrics, Elsevier, vol. 12(3), pages 931-949.
  37. Lutz Bornmann & Caroline Wagner & Loet Leydesdorff, 2018. "The geography of references in elite articles: Which countries contribute to the archives of knowledge?," PLOS ONE, Public Library of Science, vol. 13(3), pages 1-14, March.
  38. Hu, Xiaojun & Leydesdorff, Loet & Rousseau, Ronald, 2017. "Heterogeneity in an undirected network: Definition and measurement," Journal of Informetrics, Elsevier, vol. 11(2), pages 669-682.
  39. Caroline S. Wagner & Travis A. Whetsell & Loet Leydesdorff, 2017. "Growth of international collaboration in science: revisiting six specialties," Scientometrics, Springer;Akadémiai Kiadó, vol. 110(3), pages 1633-1652, March.
  40. Daniele Rotolo & Ismael Rafols & Michael M. Hopkins & Loet Leydesdorff, 2017. "Strategic intelligence on emerging technologies: Scientometric overlay mapping," Journal of the Association for Information Science & Technology, Association for Information Science & Technology, vol. 68(1), pages 214-233, January.
  41. Loet Leydesdorff & Adina Nerghes, 2017. "Co-word maps and topic modeling: A comparison using small and medium-sized corpora (N > 1,000)," Journal of the Association for Information Science & Technology, Association for Information Science & Technology, vol. 68(4), pages 1024-1035, April.
  42. Ivanova, Inga & Strand, Øivind & Kushnir, Duncan & Leydesdorff, Loet, 2017. "Economic and technological complexity: A model study of indicators of knowledge-based innovation systems," Technological Forecasting and Social Change, Elsevier, vol. 120(C), pages 77-89.
  43. Loet Leydesdorff & Lutz Bornmann & Caroline S. Wagner, 2017. "Generating clustered journal maps: an automated system for hierarchical classification," Scientometrics, Springer;Akadémiai Kiadó, vol. 110(3), pages 1601-1614, March.
  44. Jordan A. Comins & Loet Leydesdorff, 2017. "Identification of long-term concept-symbols among citations: Do common intellectual histories structure citation behavior?," Journal of the Association for Information Science & Technology, Association for Information Science & Technology, vol. 68(5), pages 1224-1233, May.
  45. Loet Leydesdorff & Wouter Nooy, 2017. "Can “hot spots” in the sciences be mapped using the dynamics of aggregated journal–journal citation Relations?," Journal of the Association for Information Science & Technology, Association for Information Science & Technology, vol. 68(1), pages 197-213, January.
  46. Jordan A. Comins & Loet Leydesdorff, 2017. "Citation algorithms for identifying research milestones driving biomedical innovation," Scientometrics, Springer;Akadémiai Kiadó, vol. 110(3), pages 1495-1504, March.
  47. Bornmann, Lutz & Leydesdorff, Loet, 2017. "Skewness of citation impact data and covariates of citation distributions: A large-scale empirical analysis based on Web of Science data," Journal of Informetrics, Elsevier, vol. 11(1), pages 164-175.
  48. Øivind Strand & Inga Ivanova & Loet Leydesdorff, 2017. "Decomposing the Triple-Helix synergy into the regional innovation systems of Norway: firm data and patent networks," Quality & Quantity: International Journal of Methodology, Springer, vol. 51(3), pages 963-988, May.
  49. Loet Leydesdorff & Dieter Franz Kogler & Bowen Yan, 2017. "Mapping patent classifications: portfolio and statistical analysis, and the comparison of strengths and weaknesses," Scientometrics, Springer;Akadémiai Kiadó, vol. 112(3), pages 1573-1591, September.
  50. Johann Bauer & Loet Leydesdorff & Lutz Bornmann, 2016. "Highly cited papers in Library and Information Science (LIS): Authors, institutions, and network structures," Journal of the Association for Information Science & Technology, Association for Information Science & Technology, vol. 67(12), pages 3095-3100, December.
  51. A. I. M. Jakaria Rahman & Raf Guns & Loet Leydesdorff & Tim C. E. Engels, 2016. "Measuring the match between evaluators and evaluees: cognitive distances between panel members and research groups at the journal level," Scientometrics, Springer;Akadémiai Kiadó, vol. 109(3), pages 1639-1663, December.
  52. Loet Leydesdorff & Caroline Wagner & Lutz Bornmann, 2016. "Replicability and the public/private divide," Journal of the Association for Information Science & Technology, Association for Information Science & Technology, vol. 67(7), pages 1777-1778, July.
  53. Iina Hellsten & Loet Leydesdorff, 2016. "The construction of interdisciplinarity: The development of the knowledge base and programmatic focus of the journal Climatic Change, 1977–2013," Journal of the Association for Information Science & Technology, Association for Information Science & Technology, vol. 67(9), pages 2181-2193, September.
  54. Loet Leydesdorff & Félix Moya-Anegón & Wouter Nooy, 2016. "Aggregated journal–journal citation relations in scopus and web of science matched and compared in terms of networks, maps, and interactive overlays," Journal of the Association for Information Science & Technology, Association for Information Science & Technology, vol. 67(9), pages 2194-2211, September.
  55. Loet Leydesdorff & Jordan A. Comins & Aaron A. Sorensen & Lutz Bornmann & Iina Hellsten, 2016. "Cited references and Medical Subject Headings (MeSH) as two different knowledge representations: clustering and mappings at the paper level," Scientometrics, Springer;Akadémiai Kiadó, vol. 109(3), pages 2077-2091, December.
  56. Loet Leydesdorff & Gaston Heimeriks & Daniele Rotolo, 2016. "Journal portfolio analysis for countries, cities, and organizations: Maps and comparisons," Journal of the Association for Information Science & Technology, Association for Information Science & Technology, vol. 67(3), pages 741-748, March.
  57. Thor, Andreas & Marx, Werner & Leydesdorff, Loet & Bornmann, Lutz, 2016. "Introducing CitedReferencesExplorer (CRExplorer): A program for reference publication year spectroscopy with cited references standardization," Journal of Informetrics, Elsevier, vol. 10(2), pages 503-515.
  58. Loet Leydesdorff & Lutz Bornmann, 2016. "The operationalization of “fields” as WoS subject categories (WCs) in evaluative bibliometrics: The cases of “library and information science” and “science & technology studies”," Journal of the Association for Information Science & Technology, Association for Information Science & Technology, vol. 67(3), pages 707-714, March.
  59. Leydesdorff, Loet & Bornmann, Lutz & Zhou, Ping, 2016. "Construction of a pragmatic base line for journal classifications and maps based on aggregated journal-journal citation relations," Journal of Informetrics, Elsevier, vol. 10(4), pages 902-918.
  60. Petersen, Alexander M. & Rotolo, Daniele & Leydesdorff, Loet, 2016. "A triple helix model of medical innovation: Supply, demand, and technological capabilities in terms of Medical Subject Headings," Research Policy, Elsevier, vol. 45(3), pages 666-681.
  61. Andreas Thor & Werner Marx & Loet Leydesdorff & Lutz Bornmann, 2016. "New features of CitedReferencesExplorer (CRExplorer)," Scientometrics, Springer;Akadémiai Kiadó, vol. 109(3), pages 2049-2051, December.
  62. Qiuju Zhou & Loet Leydesdorff, 2016. "The normalization of occurrence and Co-occurrence matrices in bibliometrics using Cosine similarities and Ochiai coefficients," Journal of the Association for Information Science & Technology, Association for Information Science & Technology, vol. 67(11), pages 2805-2814, November.
  63. Ping Zhou & Robert Tijssen & Loet Leydesdorff, 2016. "University-Industry Collaboration in China and the USA: A Bibliometric Comparison," PLOS ONE, Public Library of Science, vol. 11(11), pages 1-18, November.
  64. Loet Leydesdorff & Paul Wouters & Lutz Bornmann, 2016. "Professional and citizen bibliometrics: complementarities and ambivalences in the development and use of indicators—a state-of-the-art report," Scientometrics, Springer;Akadémiai Kiadó, vol. 109(3), pages 2129-2150, December.
  65. Han Woo Park & Jungwon Yoon & Loet Leydesdorff, 2016. "The normalization of co-authorship networks in the bibliometric evaluation: the government stimulation programs of China and Korea," Scientometrics, Springer;Akadémiai Kiadó, vol. 109(2), pages 1017-1036, November.
  66. Daniele Rotolo & Loet Leydesdorff, 2015. "Matching Medline/PubMed data with Web of Science: A routine in R language," Journal of the Association for Information Science & Technology, Association for Information Science & Technology, vol. 66(10), pages 2155-2159, October.
  67. Loet Leydesdorff, 2015. "Can technology life-cycles be indicated by diversity in patent classifications? The crucial role of variety," Scientometrics, Springer;Akadémiai Kiadó, vol. 105(3), pages 1441-1451, December.
  68. Mingers, John & Leydesdorff, Loet, 2015. "A review of theory and practice in scientometrics," European Journal of Operational Research, Elsevier, vol. 246(1), pages 1-19.
  69. Bornmann, Lutz & Leydesdorff, Loet, 2015. "Does quality and content matter for citedness? A comparison with para-textual factors and over time," Journal of Informetrics, Elsevier, vol. 9(3), pages 419-429.
  70. Balázs Lengyel & Tamás Sebestyén & Loet Leydesdorff, 2015. "Challenges for regional innovation policies in Central and Eastern Europe: Spatial concentration and foreign control of US patenting," Science and Public Policy, Oxford University Press, vol. 42(1), pages 1-14.
  71. Loet Leydesdorff, 2015. "Can intellectual processes in the sciences also be simulated? The anticipation and visualization of possible future states," Scientometrics, Springer;Akadémiai Kiadó, vol. 105(3), pages 2197-2214, December.
  72. Loet Leydesdorff & Evgeniy Perevodchikov & Alexander Uvarov, 2015. "Measuring triple-helix synergy in the Russian innovation systems at regional, provincial, and national levels," Journal of the Association for Information Science & Technology, Association for Information Science & Technology, vol. 66(6), pages 1229-1238, June.
  73. Loet Leydesdorff & Floortje Alkemade & Gaston Heimeriks & Rinke Hoekstra, 2015. "Patents as instruments for exploring innovation dynamics: geographic and technological perspectives on “photovoltaic cells”," Scientometrics, Springer;Akadémiai Kiadó, vol. 102(1), pages 629-651, January.
  74. de Nooy, Wouter & Leydesdorff, Loet, 2015. "The dynamics of triads in aggregated journal–journal citation relations: Specialty developments at the above-journal level," Journal of Informetrics, Elsevier, vol. 9(3), pages 542-554.
  75. Lutz Bornmann & Caroline Wagner & Loet Leydesdorff, 2015. "BRICS countries and scientific excellence: A bibliometric analysis of most frequently cited papers," Journal of the Association for Information Science & Technology, Association for Information Science & Technology, vol. 66(7), pages 1507-1513, July.
  76. Marcin Kozak & Lutz Bornmann & Loet Leydesdorff, 2015. "How have the Eastern European countries of the former Warsaw Pact developed since 1990? A bibliometric study," Scientometrics, Springer;Akadémiai Kiadó, vol. 102(2), pages 1101-1117, February.
  77. Loet Leydesdorff & Félix Moya-Anegón & Vicente P. Guerrero-Bote, 2015. "Journal maps, interactive overlays, and the measurement of interdisciplinarity on the basis of Scopus data (1996–2012)," Journal of the Association for Information Science & Technology, Association for Information Science & Technology, vol. 66(5), pages 1001-1016, May.
  78. John Mingers & Loet Leydesdorff, 2015. "Identifying research fields within business and management: a journal cross-citation analysis," Journal of the Operational Research Society, Palgrave Macmillan;The OR Society, vol. 66(8), pages 1370-1384, August.
  79. Mark William Johnson & Loet Leydesdorff, 2015. "Beer's Viable System Model and Luhmann's Communication Theory: ‘Organizations’ from the Perspective of Meta-Games," Systems Research and Behavioral Science, Wiley Blackwell, vol. 32(3), pages 266-282, May.
  80. Lutz Bornmann & Loet Leydesdorff, 2015. "Topical connections between the institutions within an organisation (institutional co-authorships, direct citation links and co-citations)," Scientometrics, Springer;Akadémiai Kiadó, vol. 102(1), pages 455-463, January.
  81. Ivanova, Inga A. & Leydesdorff, Loet, 2014. "Rotational symmetry and the transformation of innovation systems in a Triple Helix of university–industry–government relations," Technological Forecasting and Social Change, Elsevier, vol. 86(C), pages 143-156.
  82. Leydesdorff, Loet & Bornmann, Lutz & Marx, Werner & Milojević, Staša, 2014. "Referenced Publication Years Spectroscopy applied to iMetrics: Scientometrics, Journal of Informetrics, and a relevant subset of JASIST," Journal of Informetrics, Elsevier, vol. 8(1), pages 162-174.
  83. Loet Leydesdorff & Han Woo Park & Balazs Lengyel, 2014. "A routine for measuring synergy in university–industry–government relations: mutual information as a Triple-Helix and Quadruple-Helix indicator," Scientometrics, Springer;Akadémiai Kiadó, vol. 99(1), pages 27-35, April.
  84. Loet Leydesdorff & Petra Ahrweiler, 2014. "In search of a network theory of innovations: Relations, positions, and perspectives," Journal of the Association for Information Science & Technology, Association for Information Science & Technology, vol. 65(11), pages 2359-2374, November.
  85. Loet Leydesdorff & Robert L. Goldstone, 2014. "Interdisciplinarity at the journal and specialty level: The changing knowledge bases of the journal cognitive science," Journal of the Association for Information Science & Technology, Association for Information Science & Technology, vol. 65(1), pages 164-177, January.
  86. Leydesdorff, Loet & Wagner, Caroline S. & Bornmann, Lutz, 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," Journal of Informetrics, Elsevier, vol. 8(3), pages 606-617.
  87. Loet Leydesdorff & Inga A. Ivanova, 2014. "Mutual redundancies in interhuman communication systems: Steps toward a calculus of processing meaning," Journal of the Association for Information Science & Technology, Association for Information Science & Technology, vol. 65(2), pages 386-399, February.
  88. Werner Marx & Lutz Bornmann & Andreas Barth & Loet Leydesdorff, 2014. "Detecting the historical roots of research fields by reference publication year spectroscopy (RPYS)," Journal of the Association for Information Science & Technology, Association for Information Science & Technology, vol. 65(4), pages 751-764, April.
  89. Bornmann, Lutz & Leydesdorff, Loet & Wang, Jian, 2014. "How to improve the prediction based on citation impact percentiles for years shortly after the publication date?," Journal of Informetrics, Elsevier, vol. 8(1), pages 175-180.
  90. Fred Y. Ye & Loet Leydesdorff, 2014. "The “academic trace” of the performance matrix: A mathematical synthesis of the h-index and the integrated impact indicator (I3)," Journal of the Association for Information Science & Technology, Association for Information Science & Technology, vol. 65(4), pages 742-750, April.
  91. Peter van den Besselaar & Loet Leydesdorff, 2014. "Correction: Past performance, peer review, and project selection. Research Evaluation 18 (2009) Peter Van den Besselaar, Loet Leydesdorff," Research Evaluation, Oxford University Press, vol. 23(4), pages 381-381.
  92. Inga A. Ivanova & Loet Leydesdorff, 2014. "A simulation model of the Triple Helix of university–industry–government relations and the decomposition of the redundancy," Scientometrics, Springer;Akadémiai Kiadó, vol. 99(3), pages 927-948, June.
  93. Loet Leydesdorff & Han Woo Park & Caroline Wagner, 2014. "International coauthorship relations in the Social Sciences Citation Index: Is internationalization leading the Network?," Journal of the Association for Information Science & Technology, Association for Information Science & Technology, vol. 65(10), pages 2111-2126, October.
  94. Jonathan Adams & Karen Gurney & Daniel Hook & Loet Leydesdorff, 2014. "International collaboration clusters in Africa," Scientometrics, Springer;Akadémiai Kiadó, vol. 98(1), pages 547-556, January.
  95. Loet Leydesdorff & Ping Zhou, 2014. "Measuring the knowledge-based economy of China in terms of synergy among technological, organizational, and geographic attributes of firms," Scientometrics, Springer;Akadémiai Kiadó, vol. 98(3), pages 1703-1719, March.
  96. Chaomei Chen & Loet Leydesdorff, 2014. "Patterns of connections and movements in dual-map overlays: A new method of publication portfolio analysis," Journal of the Association for Information Science & Technology, Association for Information Science & Technology, vol. 65(2), pages 334-351, February.
  97. Loet Leydesdorff & Duncan Kushnir & Ismael Rafols, 2014. "Interactive overlay maps for US patent (USPTO) data based on International Patent Classification (IPC)," Scientometrics, Springer;Akadémiai Kiadó, vol. 98(3), pages 1583-1599, March.
  98. Susanne E. Baumgartner & Loet Leydesdorff, 2014. "Group-based trajectory modeling (GBTM) of citations in scholarly literature: Dynamic qualities of “transient” and “sticky knowledge claims”," Journal of the Association for Information Science & Technology, Association for Information Science & Technology, vol. 65(4), pages 797-811, April.
  99. Loet Leydesdorff & Filippo Radicchi & Lutz Bornmann & Claudio Castellano & Wouter de Nooy, 2013. "Field‐normalized impact factors (IFs): A comparison of rescaling and fractionally counted IFs," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 64(11), pages 2299-2309, November.
  100. Michelina Venditti & Emanuela Reale & Loet Leydesdorff, 2013. "Disclosure of university research to third parties: A non-market perspective on an Italian university," Science and Public Policy, Oxford University Press, vol. 40(6), pages 792-800, July.
  101. Loet Leydesdorff & Stephen Carley & Ismael Rafols, 2013. "Global maps of science based on the new Web-of-Science categories," Scientometrics, Springer;Akadémiai Kiadó, vol. 94(2), pages 589-593, February.
  102. Bornmann, Lutz & Leydesdorff, Loet & Mutz, Rüdiger, 2013. "The use of percentiles and percentile rank classes in the analysis of bibliometric data: Opportunities and limits," Journal of Informetrics, Elsevier, vol. 7(1), pages 158-165.
  103. Loet Leydesdorff & Ping Zhou & Lutz Bornmann, 2013. "How can journal impact factors be normalized across fields of science? An assessment in terms of percentile ranks and fractional counts," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 64(1), pages 96-107, January.
  104. Park, Han Woo & Leydesdorff, Loet, 2013. "Decomposing social and semantic networks in emerging “big data” research," Journal of Informetrics, Elsevier, vol. 7(3), pages 756-765.
  105. Fred Y. Ye & Susan S. Yu & Loet Leydesdorff, 2013. "The Triple Helix of university‐industry‐government relations at the country level and its dynamic evolution under the pressures of globalization," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 64(11), pages 2317-2325, November.
  106. Loet Leydesdorff & Øivind Strand, 2013. "The Swedish system of innovation: Regional synergies in a knowledge‐based economy," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 64(9), pages 1890-1902, September.
  107. Yan, Erjia & Ding, Ying & Cronin, Blaise & Leydesdorff, Loet, 2013. "A bird's-eye view of scientific trading: Dependency relations among fields of science," Journal of Informetrics, Elsevier, vol. 7(2), pages 249-264.
  108. Lutz Bornmann & Loet Leydesdorff, 2013. "Macro-Indicators of Citation Impacts of Six Prolific Countries: InCites Data and the Statistical Significance of Trends," PLOS ONE, Public Library of Science, vol. 8(2), pages 1-5, February.
  109. Bornmann, Lutz & Leydesdorff, Loet, 2013. "The validation of (advanced) bibliometric indicators through peer assessments: A comparative study using data from InCites and F1000," Journal of Informetrics, Elsevier, vol. 7(2), pages 286-291.
  110. Loet Leydesdorff & Martin Meyer, 2013. "A reply to Etzkowitz’ comments to Leydesdorff and Martin (2010): technology transfer and the end of the Bayh–Dole effect," Scientometrics, Springer;Akadémiai Kiadó, vol. 97(3), pages 927-934, December.
  111. Loet Leydesdorff & Ismael Rafols & Chaomei Chen, 2013. "Interactive overlays of journals and the measurement of interdisciplinarity on the basis of aggregated journal–journal citations," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 64(12), pages 2573-2586, December.
  112. Strand, Øivind & Leydesdorff, Loet, 2013. "Where is synergy indicated in the Norwegian innovation system? Triple-Helix relations among technology, organization, and geography," Technological Forecasting and Social Change, Elsevier, vol. 80(3), pages 471-484.
  113. Loet Leydesdorff & Tobias Opthof, 2013. "Citation analysis with medical subject Headings (MeSH) using the Web of Knowledge: A new routine," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 64(5), pages 1076-1080, May.
  114. Staša Milojević & Loet Leydesdorff, 2013. "Information metrics (iMetrics): a research specialty with a socio-cognitive identity?," Scientometrics, Springer;Akadémiai Kiadó, vol. 95(1), pages 141-157, April.
  115. Lutz Bornmann & Loet Leydesdorff, 2013. "Statistical tests and research assessments: A comment on Schneider (2012)," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 64(6), pages 1306-1308, June.
  116. Loet Leydesdorff, 2013. "An evaluation of impacts in “Nanoscience & nanotechnology”: steps towards standards for citation analysis," Scientometrics, Springer;Akadémiai Kiadó, vol. 94(1), pages 35-55, January.
  117. Loet Leydesdorff, 2013. "Statistics for the dynamic analysis of scientometric data: the evolution of the sciences in terms of trajectories and regimes," Scientometrics, Springer;Akadémiai Kiadó, vol. 96(3), pages 731-741, September.
  118. Bornmann, Lutz & Leydesdorff, Loet & Wang, Jian, 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 (P1," Journal of Informetrics, Elsevier, vol. 7(4), pages 933-944.
  119. Bornmann, Lutz & Leydesdorff, Loet, 2012. "Which are the best performing regions in information science in terms of highly cited papers? Some improvements of our previous mapping approaches," Journal of Informetrics, Elsevier, vol. 6(2), pages 336-345.
  120. Loet Leydesdorff & Daniele Rotolo & Ismael Rafols, 2012. "Bibliometric perspectives on medical innovation using the medical subject Headings of PubMed," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 63(11), pages 2239-2253, November.
  121. Loet Leydesdorff & Lutz Bornmann, 2012. "Mapping (USPTO) patent data using overlays to Google Maps," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 63(7), pages 1442-1458, July.
  122. Rafols, Ismael & Leydesdorff, Loet & O’Hare, Alice & Nightingale, Paul & Stirling, Andy, 2012. "How journal rankings can suppress interdisciplinary research: A comparison between Innovation Studies and Business & Management," Research Policy, Elsevier, vol. 41(7), pages 1262-1282.
  123. Loet Leydesdorff, 2012. "Alternatives to the journal impact factor: I3 and the top-10% (or top-25%?) of the most-highly cited papers," Scientometrics, Springer;Akadémiai Kiadó, vol. 92(2), pages 355-365, August.
  124. Loet Leydesdorff & Lutz Bornmann, 2012. "Percentile ranks and the integrated impact indicator (I3)," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 63(9), pages 1901-1902, September.
  125. R. D. Shelton & Loet Leydesdorff, 2012. "Publish or patent: Bibliometric evidence for empirical trade‐offs in national funding strategies," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 63(3), pages 498-511, March.
  126. Loet Leydesdorff & Lutz Bornmann, 2012. "Testing differences statistically with the Leiden ranking," Scientometrics, Springer;Akadémiai Kiadó, vol. 92(3), pages 781-783, September.
  127. Leydesdorff, Loet & Rafols, Ismael, 2012. "Interactive overlays: A new method for generating global journal maps from Web-of-Science data," Journal of Informetrics, Elsevier, vol. 6(2), pages 318-332.
  128. Loet Leydesdorff, 2012. "Accounting for the uncertainty in the evaluation of percentile ranks," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 63(11), pages 2349-2350, November.
  129. Ki-Seok Kwon & Han Woo Park & Minho So & Loet Leydesdorff, 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, Springer;Akadémiai Kiadó, vol. 90(1), pages 163-176, January.
  130. Loet Leydesdorff, 2012. "The Triple Helix, Quadruple Helix, …, and an N-Tuple of Helices: Explanatory Models for Analyzing the Knowledge-Based Economy?," Journal of the Knowledge Economy, Springer;Portland International Center for Management of Engineering and Technology (PICMET), vol. 3(1), pages 25-35, March.
  131. Loet Leydesdorff & Tobias Opthof, 2012. "A rejoinder on energy versus impact indicators," Scientometrics, Springer;Akadémiai Kiadó, vol. 90(2), pages 745-748, February.
  132. Abbasi, Alireza & Hossain, Liaquat & Leydesdorff, Loet, 2012. "Betweenness centrality as a driver of preferential attachment in the evolution of research collaboration networks," Journal of Informetrics, Elsevier, vol. 6(3), pages 403-412.
  133. Caroline S. Wagner & Loet Leydesdorff, 2012. "An Integrated Impact Indicator: A new definition of 'Impact' with policy relevance," Research Evaluation, Oxford University Press, vol. 21(3), pages 183-188, July.
  134. Loet Leydesdorff, 2011. "Katy Börner: Atlas of science: visualizing what we know," Scientometrics, Springer;Akadémiai Kiadó, vol. 88(2), pages 675-677, August.
  135. Loet Leydesdorff, 2011. "“Structuration” by intellectual organization: the configuration of knowledge in relations among structural components in networks of science," Scientometrics, Springer;Akadémiai Kiadó, vol. 88(2), pages 499-520, August.
  136. Balazs Lengyel & Loet Leydesdorff, 2011. "Regional Innovation Systems in Hungary: The Failing Synergy at the National Level," Regional Studies, Taylor & Francis Journals, vol. 45(5), pages 677-693.
  137. Lutz Bornmann & Loet Leydesdorff, 2011. "Which cities produce more excellent papers than can be expected? A new mapping approach, using Google Maps, based on statistical significance testing," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 62(10), pages 1954-1962, October.
  138. Leydesdorff, Loet & Welbers, Kasper, 2011. "The semantic mapping of words and co-words in contexts," Journal of Informetrics, Elsevier, vol. 5(3), pages 469-475.
  139. Loet Leydesdorff & Jung C. Shin, 2011. "How to evaluate universities in terms of their relative citation impacts: Fractional counting of citations and the normalization of differences among disciplines," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 62(6), pages 1146-1155, June.
  140. Tobias Opthof & Loet Leydesdorff, 2011. "A comment to the paper by Waltman et al., Scientometrics, 87, 467–481, 2011," Scientometrics, Springer;Akadémiai Kiadó, vol. 88(3), pages 1011-1016, September.
  141. Loet Leydesdorff & Tobias Opthof, 2011. "Scopus' SNIP indicator: Reply to Moed," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 62(1), pages 214-215, January.
  142. Loet Leydesdorff & Lutz Bornmann, 2011. "Integrated impact indicators compared with impact factors: An alternative research design with policy implications," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 62(11), pages 2133-2146, November.
  143. Loet Leydesdorff & Lutz Bornmann & Rüdiger Mutz & Tobias Opthof, 2011. "Turning the tables on citation analysis one more time: Principles for comparing sets of documents," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 62(7), pages 1370-1381, July.
  144. Zhou, Ping & Leydesdorff, Loet, 2011. "Fractional counting of citations in research evaluation: A cross- and interdisciplinary assessment of the Tsinghua University in Beijing," Journal of Informetrics, Elsevier, vol. 5(3), pages 360-368.
  145. Loet Leydesdorff & Lutz Bornmann, 2011. "How fractional counting of citations affects the impact factor: Normalization in terms of differences in citation potentials among fields of science," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 62(2), pages 217-229, February.
  146. Bornmann, Lutz & Leydesdorff, Loet & Walch-Solimena, Christiane & Ettl, Christoph, 2011. "Mapping excellence in the geography of science: An approach based on Scopus data," Journal of Informetrics, Elsevier, vol. 5(4), pages 537-546.
  147. Loet Leydesdorff & Ismael Rafols, 2011. "Local emergence and global diffusion of research technologies: An exploration of patterns of network formation," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 62(5), pages 846-860, May.
  148. Loet Leydesdorff & Björn Hammarfelt & Almila Salah, 2011. "The structure of the Arts & Humanities Citation Index: A mapping on the basis of aggregated citations among 1,157 journals," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 62(12), pages 2414-2426, December.
  149. Leydesdorff, Loet & Rafols, Ismael, 2011. "Indicators of the interdisciplinarity of journals: Diversity, centrality, and citations," Journal of Informetrics, Elsevier, vol. 5(1), pages 87-100.
  150. Loet Leydesdorff & Félix de Moya‐Anegón & Vicente P. Guerrero‐Bote, 2010. "Journal maps on the basis of Scopus data: A comparison with the Journal Citation Reports of the ISI," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 61(2), pages 352-369, February.
  151. Loet Leydesdorff & Olle Persson, 2010. "Mapping the geography of science: Distribution patterns and networks of relations among cities and institutes," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 61(8), pages 1622-1634, August.
  152. Bornmann, Lutz & Leydesdorff, Loet & Van den Besselaar, Peter, 2010. "A meta-evaluation of scientific research proposals: Different ways of comparing rejected to awarded applications," Journal of Informetrics, Elsevier, vol. 4(3), pages 211-220.
  153. Ping Zhou & Xinning Su & Loet Leydesdorff, 2010. "A comparative study on communication structures of Chinese journals in the social sciences," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 61(7), pages 1360-1376, July.
  154. Loet Leydesdorff & Alkim Almila Akdag Salah, 2010. "Maps on the basis of the Arts & Humanities Citation Index: The journals Leonardo and Art Journal versus “digital humanities” as a topic," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 61(4), pages 787-801, April.
  155. Loet Leydesdorff, 2010. "The communication of meaning and the structuration of expectations: Giddens' “structuration theory” and Luhmann's “self‐organization”," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 61(10), pages 2138-2150, October.
  156. Opthof, Tobias & Leydesdorff, Loet, 2010. "Caveats for the journal and field normalizations in the CWTS (“Leiden”) evaluations of research performance," Journal of Informetrics, Elsevier, vol. 4(3), pages 423-430.
  157. Park, Han Woo & Leydesdorff, Loet, 2010. "Longitudinal trends in networks of university-industry-government relations in South Korea: The role of programmatic incentives," Research Policy, Elsevier, vol. 39(5), pages 640-649, June.
  158. Loet Leydesdorff & Martin Meyer, 2010. "The decline of university patenting and the end of the Bayh–Dole effect," Scientometrics, Springer;Akadémiai Kiadó, vol. 83(2), pages 355-362, May.
  159. Loet Leydesdorff & Tobias Opthof, 2010. "Scopus's source normalized impact per paper (SNIP) versus a journal impact factor based on fractional counting of citations," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 61(11), pages 2365-2369, November.
  160. Wilfred Dolfsma & Loet Leydesdorff, 2010. "The citation field of evolutionary economics," Journal of Evolutionary Economics, Springer, vol. 20(5), pages 645-664, October.
  161. Ismael Rafols & Alan L. Porter & Loet Leydesdorff, 2010. "Science overlay maps: A new tool for research policy and library management," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 61(9), pages 1871-1887, September.
  162. Lutz Bornmann & Félix de Moya Anegón & Loet Leydesdorff, 2010. "Do Scientific Advancements Lean on the Shoulders of Giants? A Bibliometric Investigation of the Ortega Hypothesis," PLOS ONE, Public Library of Science, vol. 5(10), pages 1-6, October.
  163. Loet Leydesdorff & Yuan Sun, 2009. "National and international dimensions of the Triple Helix in Japan: University–industry–government versus international coauthorship relations," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 60(4), pages 778-788, April.
  164. Loet Leydesdorff & Carole Probst, 2009. "The delineation of an interdisciplinary specialty in terms of a journal set: The case of communication studies," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 60(8), pages 1709-1718, August.
  165. Peter van den Besselaar & Loet Leydesdorff, 2009. "Past performance, peer review and project selection: a case study in the social and behavioral sciences," Research Evaluation, Oxford University Press, vol. 18(4), pages 273-288, October.
  166. Loet Leydesdorff & Ismael Rafols, 2009. "A global map of science based on the ISI subject categories," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 60(2), pages 348-362, February.
  167. Loet Leydesdorff & Caroline Wagner, 2009. "Is the United States losing ground in science? A global perspective on the world science system," Scientometrics, Springer;Akadémiai Kiadó, vol. 78(1), pages 23-36, January.
  168. Loet Leydesdorff, 2009. "How are new citation‐based journal indicators adding to the bibliometric toolbox?," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 60(7), pages 1327-1336, July.
  169. Han Woo Park & Loet Leydesdorff, 2009. "Knowledge linkage structures in communication studies using citation analysis among communication journals," Scientometrics, Springer;Akadémiai Kiadó, vol. 81(1), pages 157-175, October.
  170. Stephen J. Bensman & Loet Leydesdorff, 2009. "Definition and identification of journals as bibliographic and subject entities: Librarianship versus ISI Journal Citation Reports methods and their effect on citation measures," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 60(6), pages 1097-1117, June.
  171. Lucio-Arias, Diana & Leydesdorff, Loet, 2009. "The dynamics of exchanges and references among scientific texts, and the autopoiesis of discursive knowledge," Journal of Informetrics, Elsevier, vol. 3(3), pages 261-271.
  172. Ismael Rafols & Loet Leydesdorff, 2009. "Content‐based and algorithmic classifications of journals: Perspectives on the dynamics of scientific communication and indexer effects," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 60(9), pages 1823-1835, September.
  173. Leo Egghe & Loet Leydesdorff, 2009. "The relation between Pearson's correlation coefficient r and Salton's cosine measure," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 60(5), pages 1027-1036, May.
  174. Leydesdorff, Loet & Wagner, Caroline, 2009. "Macro-level indicators of the relations between research funding and research output," Journal of Informetrics, Elsevier, vol. 3(4), pages 353-362.
  175. Diana Lucio‐Arias & Loet Leydesdorff, 2009. "An indicator of research front activity: Measuring intellectual organization as uncertainty reduction in document sets," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 60(12), pages 2488-2498, December.
  176. Leydesdorff, Loet & Wagner, Caroline S., 2008. "International collaboration in science and the formation of a core group," Journal of Informetrics, Elsevier, vol. 2(4), pages 317-325.
  177. Han Woo Park & Loet Leydesdorff, 2008. "Korean journals in the Science Citation Index: What do they reveal about the intellectual structure of S&T in Korea?," Scientometrics, Springer;Akadémiai Kiadó, vol. 75(3), pages 439-462, June.
  178. Loet Leydesdorff, 2008. "Patent classifications as indicators of intellectual organization," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 59(10), pages 1582-1597, August.
  179. Loet Leydesdorff, 2008. "On the normalization and visualization of author co‐citation data: Salton's Cosine versus the Jaccard index," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 59(1), pages 77-85, January.
  180. Loet Leydesdorff, 2008. "The delineation of nanoscience and nanotechnology in terms of journals and patents: A most recent update," Scientometrics, Springer;Akadémiai Kiadó, vol. 76(1), pages 159-167, July.
  181. Loet Leydesdorff & Thomas Schank, 2008. "Dynamic animations of journal maps: Indicators of structural changes and interdisciplinary developments," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 59(11), pages 1810-1818, September.
  182. Diana Lucio‐Arias & Loet Leydesdorff, 2008. "Main‐path analysis and path‐dependent transitions in HistCite™‐based historiograms," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 59(12), pages 1948-1962, October.
  183. Loet Leydesdorff, 2008. "Caveats for the use of citation indicators in research and journal evaluations," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 59(2), pages 278-287, January.
  184. Lengyel, Balázs & Leydesdorff, Loet, 2008. "A magyar gazdaság tudásalapú szerveződésének mérése. Az innovációs rendszerek szinergiáinak térbelisége [Measuring the knowledge base of the Hungarian economy: spatial characteristics of innovation," Közgazdasági Szemle (Economic Review - monthly of the Hungarian Academy of Sciences), Közgazdasági Szemle Alapítvány (Economic Review Foundation), vol. 0(6), pages 522-547.
  185. Loet Leydesdorff & Ping Zhou, 2008. "Co‐word analysis using the Chinese character set," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 59(9), pages 1528-1530, July.
  186. Diana Lucio-Arias & Loet Leydesdorff, 2007. "Knowledge emergence in scientific communication: from “fullerenes” to “nanotubes”," Scientometrics, Springer;Akadémiai Kiadó, vol. 70(3), pages 603-632, March.
  187. Loet Leydesdorff, 2007. "Environment and Planning B: Planning and Design as a Journal: The Interdisciplinarity of its Environment and the Citation Impact," Environment and Planning B, , vol. 34(5), pages 826-838, October.
  188. Loet Leydesdorff & Martin Meyer, 2007. "The scientometrics of a Triple Helix of university-industry-government relations (Introduction to the topical issue)," Scientometrics, Springer;Akadémiai Kiadó, vol. 70(2), pages 207-222, February.
  189. Ping Zhou & Loet Leydesdorff, 2007. "A comparison between the China Scientific and Technical Papers and Citations Database and the Science Citation Index in terms of journal hierarchies and interjournal citation relations," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 58(2), pages 223-236, January.
  190. Loet Leydesdorff, 2007. "Mapping interdisciplinarity at the interfaces between the Science Citation Index and the Social Science Citation Index," Scientometrics, Springer;Akadémiai Kiadó, vol. 71(3), pages 391-405, June.
  191. Loet Leydesdorff, 2007. "Betweenness centrality as an indicator of the interdisciplinarity of scientific journals," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 58(9), pages 1303-1319, July.
  192. Loet Leydesdorff, 2007. "Should co‐occurrence data be normalized? A rejoinder," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 58(14), pages 2411-2413, December.
  193. Loet Leydesdorff, 2007. "Visualization of the citation impact environments of scientific journals: An online mapping exercise," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 58(1), pages 25-38, January.
  194. Ping Zhou & Loet Leydesdorff, 2007. "The citation impacts and citation environments of Chinese journals in mathematics," Scientometrics, Springer;Akadémiai Kiadó, vol. 72(2), pages 185-200, August.
  195. Loet Leydesdorff & Ping Zhou, 2007. "Nanotechnology as a field of science: Its delineation in terms of journals and patents," Scientometrics, Springer;Akadémiai Kiadó, vol. 70(3), pages 693-713, March.
  196. Loet Leydesdorff, 2006. "“While a Storm is Raging on the Open Sea”: Regional Development in a Knowledge-based Economy," The Journal of Technology Transfer, Springer, vol. 31(1), pages 189-203, January.
  197. Zhou, Ping & Leydesdorff, Loet, 2006. "The emergence of China as a leading nation in science," Research Policy, Elsevier, vol. 35(1), pages 83-104, February.
  198. Loet Leydesdorff, 2006. "Can scientific journals be classified in terms of aggregated journal‐journal citation relations using the Journal Citation Reports?," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 57(5), pages 601-613, March.
  199. Leydesdorff, Loet & Fritsch, Michael, 2006. "Measuring the knowledge base of regional innovation systems in Germany in terms of a Triple Helix dynamics," Research Policy, Elsevier, vol. 35(10), pages 1538-1553, December.
  200. Leydesdorff, Loet & Meyer, Martin, 2006. "Triple Helix indicators of knowledge-based innovation systems: Introduction to the special issue," Research Policy, Elsevier, vol. 35(10), pages 1441-1449, December.
  201. Loet Leydesdorff & Stephen Bensman, 2006. "Classification and powerlaws: The logarithmic transformation," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 57(11), pages 1470-1486, September.
  202. Loet Leydesdorff & Liwen Vaughan, 2006. "Co‐occurrence matrices and their applications in information science: Extending ACA to the Web environment," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 57(12), pages 1616-1628, October.
  203. Leydesdorff, Loet & Dolfsma, Wilfred & Van der Panne, Gerben, 2006. "Measuring the knowledge base of an economy in terms of triple-helix relations among 'technology, organization, and territory'," Research Policy, Elsevier, vol. 35(2), pages 181-199, March.
  204. Philip Cooke & Loet Leydesdorff, 2006. "Regional Development in the Knowledge-Based Economy: The Construction of Advantage," The Journal of Technology Transfer, Springer, vol. 31(1), pages 5-15, January.
  205. Loet Leydesdorff & Iina Hellsten, 2006. "Measuring the meaning of words in contexts: An automated analysis of controversies about 'Monarch butterflies,' 'Frankenfoods,' and 'stem cells'," Scientometrics, Springer;Akadémiai Kiadó, vol. 67(2), pages 231-258, May.
  206. Loet Leydesdorff & Ping Zhou, 2005. "Are the contributions of China and Korea upsetting the world system of science?," Scientometrics, Springer;Akadémiai Kiadó, vol. 63(3), pages 617-630, June.
  207. Wagner, Caroline S. & Leydesdorff, Loet, 2005. "Network structure, self-organization, and the growth of international collaboration in science," Research Policy, Elsevier, vol. 34(10), pages 1608-1618, December.
  208. Loet Leydesdorff, 2005. "Similarity measures, author cocitation analysis, and information theory," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 56(7), pages 769-772, May.
  209. Han Woo Park & Heung Deug Hong & Loet Leydesdorff, 2005. "A comparison of the knowledge-based innovation systems in the economies of South Korea and the Netherlands using Triple Helix indicators," Scientometrics, Springer;Akadémiai Kiadó, vol. 65(1), pages 3-27, October.
  210. Loet Leydesdorff & Jin Bihui, 2005. "Mapping the Chinese Science Citation Database in terms of aggregated journal–journal citation relations," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 56(14), pages 1469-1479, December.
  211. Loet Leydesdorff & Virginia Trimnle & Péter Vinkler, 2005. "Walk-round," Scientometrics, Springer;Akadémiai Kiadó, vol. 63(2), pages 407-419, April.
  212. Loet Leydesdorff, 2005. "Anticipatory Systems and the Processing of Meaning: a Simulation Study Inspired by Luhmann's Theory of Social Systems," Journal of Artificial Societies and Social Simulation, Journal of Artificial Societies and Social Simulation, vol. 8(2), pages 1-7.
  213. Loet Leydesdorff, 2004. "Loet Leydesdorff wins the 2003 Derek John de Solla Price Medal," Scientometrics, Springer;Akadémiai Kiadó, vol. 60(3), pages 273-274, August.
  214. Corinna Fischer & Loet Leydesdorff & Malte Schophaus, 2004. "Science shops in Europe: the public as stakeholder," Science and Public Policy, Oxford University Press, vol. 31(3), pages 199-211, June.
  215. Loet Leydesdorff, 2004. "Top-down decomposition of the Journal Citation Reportof the Social Science Citation Index: Graph- and factor-analytical approaches," Scientometrics, Springer;Akadémiai Kiadó, vol. 60(2), pages 159-180, June.
  216. Loet Leydesdorff, 2004. "The university–industry knowledge relationship: Analyzing patents and the science base of technologies," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 55(11), pages 991-1001, September.
  217. Loet Leydesdorff & Martin Meyer, 2003. "The Triple Helix of university-industry-government relations," Scientometrics, Springer;Akadémiai Kiadó, vol. 58(2), pages 191-203, October.
  218. Loet Leydesdorff, 2003. "The mutual information of university-industry-government relations: An indicator of the Triple Helix dynamics," Scientometrics, Springer;Akadémiai Kiadó, vol. 58(2), pages 445-467, October.
  219. Loet Leydesdorff, 2003. "Empirical evidence of self‐organization? A rejoinder," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 54(8), pages 804-804, June.
  220. Loet Leydesdorff & Henry Etzkowitz, 2003. "Can ‘the public’ be considered as a fourth helix in university-industry-government relations? Report on the Fourth Triple Helix Conference, 2002," Science and Public Policy, Oxford University Press, vol. 30(1), pages 55-61, February.
  221. Loet Leydesdorff, 2003. "Rejoinder to Van den Besselaar's letter entitled “Descriptive statistics, inferential statistics, rhetorical statistics”," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 54(11), pages 1077-1078, September.
  222. Caroline S. Wagner & Loet Leydesdorff, 2003. "Seismology as a dynamic, distributed area of scientific research," Scientometrics, Springer;Akadémiai Kiadó, vol. 58(1), pages 91-114, September.
  223. Leydesdorff, Loet & Cooke, Philip & Olazaran, Mikel, 2002. "Technology Transfer in European Regions: Introduction to the Special Issue," The Journal of Technology Transfer, Springer, vol. 27(1), pages 5-13, January.
  224. Loet Leydesdorff, 2002. "Indicators of structural change in the dynamics of science: Entropy statistics of the SCI Journal Citation Reports," Scientometrics, Springer;Akadémiai Kiadó, vol. 53(1), pages 131-159, January.
  225. Loet Leydesdorff, 2002. "Dynamic and evolutionary updates of classificatory schemes in scientific journal structures," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 53(12), pages 987-994, October.
  226. Loet Leydesdorff & Gaston Heimeriks, 2001. "The self‐organization of the European Information Society: The case of “biotechnology”," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 52(14), pages 1262-1274.
  227. Marta Riba Vilanova & Loet Leydesdorff, 2001. "Why Catalonia cannot be considered as a regional innovation system," Scientometrics, Springer;Akadémiai Kiadó, vol. 50(2), pages 215-240, February.
  228. Loet Leydesdorff, 2001. "Re-thinking relations between texts and contexts in science," Science and Public Policy, Oxford University Press, vol. 28(6), pages 484-486, December.
  229. Loet Leydesdorff, 2001. "Technology and Culture: the Dissemination and the Potential 'Lock-In' of New Technologies," Journal of Artificial Societies and Social Simulation, Journal of Artificial Societies and Social Simulation, vol. 4(3), pages 1-5.
  230. Loet Leydesdorff, 2000. "Is the European Union Becoming a Single Publication System?," Scientometrics, Springer;Akadémiai Kiadó, vol. 47(2), pages 265-280, February.
  231. Etzkowitz, Henry & Leydesdorff, Loet, 2000. "The dynamics of innovation: from National Systems and "Mode 2" to a Triple Helix of university-industry-government relations," Research Policy, Elsevier, vol. 29(2), pages 109-123, February.
  232. Andrés Zelman & Loet Leydesdorff, 2000. "Threaded Email Messages in Self-Organization and Science & Technology Studies Oriented Mailing Lists," Scientometrics, Springer;Akadémiai Kiadó, vol. 48(3), pages 361-380, July.
  233. Leydesdorff, Loet, 2000. "The triple helix: an evolutionary model of innovations," Research Policy, Elsevier, vol. 29(2), pages 243-255, February.
  234. Frenken, Koen & Leydesdorff, Loet, 2000. "Scaling trajectories in civil aircraft (1913-1997)," Research Policy, Elsevier, vol. 29(3), pages 331-348, March.
  235. Loet Leydesdorff, 1999. "El nuevo régimen de comunicación en las relaciones universidad-empresa-gobierno: una triple hélice de innovaciones," EKONOMIAZ. Revista vasca de Economía, Gobierno Vasco / Eusko Jaurlaritza / Basque Government, vol. 45(03), pages 60-77.
  236. L. Leydesdorff & P. Wouters, 1999. "Between texts and contexts: Advances in theories of citation? (A rejoinder)," Scientometrics, Springer;Akadémiai Kiadó, vol. 44(2), pages 169-182, February.
  237. Loet Leydesdorff, 1998. "Reply about using co‐words," Journal of the American Society for Information Science, Association for Information Science & Technology, vol. 49(1), pages 98-99.
  238. Loet Leydesdorff & Henry Etzkowitz, 1998. "The Triple Helix as a model for innovation studies," Science and Public Policy, Oxford University Press, vol. 25(3), pages 195-203, June.
  239. Henry Etzkowitz & Loet Leydesdorff, 1997. "Introduction to special issue on science policy dimensions of the Triple Helix of university-industry-government relations," Science and Public Policy, Oxford University Press, vol. 24(1), pages 2-5, February.
  240. Loet Leydesdorff, 1997. "Why words and co‐words cannot map the development of the sciences," Journal of the American Society for Information Science, Association for Information Science & Technology, vol. 48(5), pages 418-427, May.
  241. Leydesdorff, Loet & Gauthier, Elaine, 1996. "The evaluation of national performance in selected priority areas using scientometric methods," Research Policy, Elsevier, vol. 25(3), pages 431-450, May.
  242. Loet Leydesdorff & Henry Etzkowitz, 1996. "Emergence of a Triple Helix of university—industry—government relations," Science and Public Policy, Oxford University Press, vol. 23(5), pages 279-286, October.
  243. Peter van den Besselaar & Loet Leydesdorff, 1996. "Mapping change in scientific specialties: A scientometric reconstruction of the development of artificial intelligence," Journal of the American Society for Information Science, Association for Information Science & Technology, vol. 47(6), pages 415-436, June.
  244. Leydesdorff, Loet & Cozzens, Susan & Van den Besselaar, Peter, 1994. "Tracking areas of strategic importance using scientometric journal mappings," Research Policy, Elsevier, vol. 23(2), pages 217-229, March.
  245. Leydesdorff, Loet & Zeldenrust, Sjerp, 1984. "Technological change and trade unions," Research Policy, Elsevier, vol. 13(3), pages 153-164, June.
    RePEc:gam:joitmc:v:4:y:2018:i:2:p:16-:d:146606 is not listed on IDEAS
    RePEc:taf:promet:v:32:y:2014:i:4:p:321-336 is not listed on IDEAS

Chapters

  1. Loet Leydesdorff & Wilfred Dolfsma & Gerben Van der Panne, 2010. "Measuring the Knowledge Base of an Economy in Terms of Triple-Helix Relations," Chapters, in: Riccardo Viale & Henry Etzkowitz (ed.), The Capitalization of Knowledge, chapter 11, Edward Elgar Publishing.
  2. Loet Leydesdorff, 2006. "The Knowledge-Based Economy and the Triple Helix Model," Chapters, in: Wilfred Dolfsma & Luc Soete (ed.), Understanding the Dynamics of a Knowledge Economy, chapter 2, Edward Elgar Publishing.

More information

Research fields, statistics, top rankings, if available.

Statistics

Access and download statistics for all items

Rankings

This author is among the top 5% authors according to these criteria:
  1. Average Rank Score
  2. Number of Works
  3. Number of Distinct Works
  4. Number of Distinct Works, Weighted by Number of Authors
  5. Number of Citations
  6. Number of Citations, Discounted by Citation Age
  7. Number of Citations, Weighted by Simple Impact Factor
  8. Number of Citations, Weighted by Simple Impact Factor, Discounted by Citation Age
  9. Number of Citations, Weighted by Number of Authors
  10. Number of Citations, Weighted by Number of Authors, Discounted by Citation Age
  11. Number of Citations, Weighted by Number of Authors and Simple Impact Factors
  12. Number of Citations, Weighted by Number of Authors and Simple Impact Factors, Discounted by Citation Age
  13. h-index
  14. Number of Registered Citing Authors
  15. Number of Journal Pages
  16. Number of Journal Pages, Weighted by Simple Impact Factor
  17. Number of Journal Pages, Weighted by Number of Authors
  18. Number of Journal Pages, Weighted by Number of Authors and Simple Impact Factors
  19. Number of Abstract Views in RePEc Services over the past 12 months
  20. Number of Abstract Views in RePEc Services over the past 12 months, Weighted by Number of Authors
  21. Number of Downloads through RePEc Services over the past 12 months, Weighted by Number of Authors
  22. Euclidian citation score
  23. Wu-Index

Co-authorship network on CollEc

NEP Fields

NEP is an announcement service for new working papers, with a weekly report in each of many fields. This author has had 9 papers announced in NEP. These are the fields, ordered by number of announcements, along with their dates. If the author is listed in the directory of specialists for this field, a link is also provided.
  1. NEP-INO: Innovation (6) 2014-10-03 2015-12-12 2016-03-06 2016-10-02 2017-05-21 2020-05-11. Author is listed
  2. NEP-CSE: Economics of Strategic Management (5) 2015-12-12 2016-03-06 2016-10-02 2017-05-21 2020-05-11. Author is listed
  3. NEP-KNM: Knowledge Management and Knowledge Economy (3) 2015-12-12 2016-03-06 2017-05-21
  4. NEP-SBM: Small Business Management (3) 2016-10-02 2017-05-21 2020-05-11
  5. NEP-SOG: Sociology of Economics (3) 2011-11-07 2015-04-02 2022-04-11
  6. NEP-GEO: Economic Geography (2) 2016-10-02 2020-05-11
  7. NEP-TID: Technology and Industrial Dynamics (2) 2016-03-06 2020-05-11
  8. NEP-BAN: Banking (1) 2022-04-11
  9. NEP-EDU: Education (1) 2015-12-12
  10. NEP-EUR: Microeconomic European Issues (1) 2020-05-11
  11. NEP-GEN: Gender (1) 2020-05-11
  12. NEP-INT: International Trade (1) 2016-10-02
  13. NEP-IPR: Intellectual Property Rights (1) 2015-12-12
  14. NEP-PKE: Post Keynesian Economics (1) 2011-11-07
  15. NEP-SEA: South East Asia (1) 2016-03-06
  16. NEP-URE: Urban and Real Estate Economics (1) 2020-05-11

Corrections

All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. For general information on how to correct material on RePEc, see these instructions.

To update listings or check citations waiting for approval, Loet Leydesdorff should log into the RePEc Author Service.

To make corrections to the bibliographic information of a particular item, find the technical contact on the abstract page of that item. There, details are also given on how to add or correct references and citations.

To link different versions of the same work, where versions have a different title, use this form. Note that if the versions have a very similar title and are in the author's profile, the links will usually be created automatically.

Please note that most corrections can take a couple of weeks to filter through the various RePEc services.

IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.