Search Results

There are 44171 results for: content related to: Uncertainties and ambiguities in percentiles and how to avoid them

  1. Mapping (USPTO) patent data using overlays to Google Maps

    Journal of the American Society for Information Science and Technology

    Volume 63, Issue 7, July 2012, Pages: 1442–1458, Loet Leydesdorff and Lutz Bornmann

    Version of Record online : 4 MAY 2012, DOI: 10.1002/asi.22666

  2. 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

    Volume 64, Issue 12, December 2013, Pages: 2573–2586, Loet Leydesdorff, Ismael Rafols and Chaomei Chen

    Version of Record online : 30 SEP 2013, DOI: 10.1002/asi.22946

  3. You have free access to this content
    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

    Volume 64, Issue 1, January 2013, Pages: 96–107, Loet Leydesdorff, Ping Zhou and Lutz Bornmann

    Version of Record online : 6 DEC 2012, DOI: 10.1002/asi.22765

  4. Journal maps, interactive overlays, and the measurement of interdisciplinarity on the basis of Scopus data (1996–2012)

    Journal of the Association for Information Science and Technology

    Volume 66, Issue 5, May 2015, Pages: 1001–1016, Loet Leydesdorff, Félix de Moya-Anegón and Vicente P. Guerrero-Bote

    Version of Record online : 14 JUL 2014, DOI: 10.1002/asi.23243

  5. Mutual redundancies in interhuman communication systems: Steps toward a calculus of processing meaning

    Journal of the Association for Information Science and Technology

    Volume 65, Issue 2, February 2014, Pages: 386–399, Loet Leydesdorff and Inga A. Ivanova

    Version of Record online : 8 NOV 2013, DOI: 10.1002/asi.22973

  6. The Swedish system of innovation: Regional synergies in a knowledge-based economy

    Journal of the American Society for Information Science and Technology

    Volume 64, Issue 9, September 2013, Pages: 1890–1902, Loet Leydesdorff and Øivind Strand

    Version of Record online : 10 JUL 2013, DOI: 10.1002/asi.22895

  7. Interdisciplinarity at the journal and specialty level: The changing knowledge bases of the journal cognitive science

    Journal of the Association for Information Science and Technology

    Volume 65, Issue 1, January 2014, Pages: 164–177, Loet Leydesdorff and Robert L. Goldstone

    Version of Record online : 9 OCT 2013, DOI: 10.1002/asi.22953

  8. In search of a network theory of innovations: Relations, positions, and perspectives

    Journal of the Association for Information Science and Technology

    Volume 65, Issue 11, November 2014, Pages: 2359–2374, Loet Leydesdorff and Petra Ahrweiler

    Version of Record online : 30 APR 2014, DOI: 10.1002/asi.23127

  9. Inconsistencies of recently proposed citation impact indicators and how to avoid them

    Journal of the American Society for Information Science and Technology

    Volume 63, Issue 10, October 2012, Pages: 2062–2073, Michael Schreiber

    Version of Record online : 7 SEP 2012, DOI: 10.1002/asi.22703

  10. Field-normalized impact factors (IFs): A comparison of rescaling and fractionally counted IFs

    Journal of the American Society for Information Science and Technology

    Volume 64, Issue 11, November 2013, Pages: 2299–2309, Loet Leydesdorff, Filippo Radicchi, Lutz Bornmann, Claudio Castellano and Wouter de Nooy

    Version of Record online : 23 AUG 2013, DOI: 10.1002/asi.22911

  11. Scientific communities as autopoietic systems: The reproductive function of citations

    Journal of the American Society for Information Science and Technology

    Volume 64, Issue 7, July 2013, Pages: 1442–1453, Emanuela Riviera

    Version of Record online : 10 MAY 2013, DOI: 10.1002/asi.22826

  12. 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

    Volume 64, Issue 11, November 2013, Pages: 2317–2325, Fred Y. Ye, Susan S. Yu and Loet Leydesdorff

    Version of Record online : 23 AUG 2013, DOI: 10.1002/asi.22931

  13. International coauthorship relations in the Social Sciences Citation Index: Is internationalization leading the Network?

    Journal of the Association for Information Science and Technology

    Volume 65, Issue 10, October 2014, Pages: 2111–2126, Loet Leydesdorff, Han Woo Park and Caroline Wagner

    Version of Record online : 10 MAR 2014, DOI: 10.1002/asi.23102

  14. Bibliometric perspectives on medical innovation using the medical subject Headings of PubMed

    Journal of the American Society for Information Science and Technology

    Volume 63, Issue 11, November 2012, Pages: 2239–2253, Loet Leydesdorff, Daniele Rotolo and Ismael Rafols

    Version of Record online : 15 OCT 2012, DOI: 10.1002/asi.22715

  15. 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 and Technology

    Volume 67, Issue 9, September 2016, Pages: 2194–2211, Loet Leydesdorff, Félix de Moya-Anegón and Wouter de Nooy

    Version of Record online : 8 JAN 2015, DOI: 10.1002/asi.23372

  16. You have full text access to this OnlineOpen article
    Measuring triple-helix synergy in the Russian innovation systems at regional, provincial, and national levels

    Journal of the Association for Information Science and Technology

    Volume 66, Issue 6, June 2015, Pages: 1229–1238, Loet Leydesdorff, Evgeniy Perevodchikov and Alexander Uvarov

    Version of Record online : 10 JUL 2014, DOI: 10.1002/asi.23258

  17. On the calculation of percentile-based bibliometric indicators

    Journal of the American Society for Information Science and Technology

    Volume 64, Issue 2, February 2013, Pages: 372–379, Ludo Waltman and Michael Schreiber

    Version of Record online : 14 DEC 2012, DOI: 10.1002/asi.22775

  18. Publish or patent: Bibliometric evidence for empirical trade-offs in national funding strategies

    Journal of the American Society for Information Science and Technology

    Volume 63, Issue 3, March 2012, Pages: 498–511, R. D. Shelton and Loet Leydesdorff

    Version of Record online : 18 NOV 2011, DOI: 10.1002/asi.21677

  19. Detecting the historical roots of research fields by reference publication year spectroscopy (RPYS)

    Journal of the Association for Information Science and Technology

    Volume 65, Issue 4, April 2014, Pages: 751–764, Werner Marx, Lutz Bornmann, Andreas Barth and Loet Leydesdorff

    Version of Record online : 21 NOV 2013, DOI: 10.1002/asi.23089

  20. You have free access to this content
    Strategic intelligence on emerging technologies: Scientometric overlay mapping

    Journal of the Association for Information Science and Technology

    Volume 68, Issue 1, January 2017, Pages: 214–233, Daniele Rotolo, Ismael Rafols, Michael M. Hopkins and Loet Leydesdorff

    Version of Record online : 23 DEC 2015, DOI: 10.1002/asi.23631