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Detecting the emergence of new scientific collaboration links in Africa: A comparison of expected and realized collaboration intensities

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  • Guns, Raf
  • Wang, Lili

Abstract

The evolution of a collaboration network is to some extent steered by the network topology itself. This is the reason behind the success of network evolution models and approaches to link prediction. At the same time, some changes are due to exogenous factors (i.e., factors external to the network itself). In this paper, we explore changes in the collaboration network of African countries (2000–2014), with a focus on detecting emergent links beyond endogenous network features. Using link prediction and machine learning, we generate an ‘expected’ (predicted) collaboration network based on past data and compare it with the actual network that evolved in later years. The results show that the intensity of collaboration with non-African countries is higher than expected, especially for countries that are scientifically more active. To a lesser extent, we also find an increase in collaboration within Africa, which seems mostly due to the scientifically less developed countries. Emergent collaborations are mostly found in the first half of the studied period; in the second half the network structure appears to stabilize.

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  • Guns, Raf & Wang, Lili, 2017. "Detecting the emergence of new scientific collaboration links in Africa: A comparison of expected and realized collaboration intensities," Journal of Informetrics, Elsevier, vol. 11(3), pages 892-903.
    • Handle: RePEc:eee:infome:v:11:y:2017:i:3:p:892-903
    DOI: 10.1016/j.joi.2017.07.004
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    1. Radhamany Sooryamoorthy, 2009. "Collaboration and publication: How collaborative are scientists in South Africa?," Scientometrics, Springer;Akadémiai Kiadó, vol. 80(2), pages 419-439, August.
    2. Nelius Boshoff, 2010. "South–South research collaboration of countries in the Southern African Development Community (SADC)," Scientometrics, Springer;Akadémiai Kiadó, vol. 84(2), pages 481-503, August.
    3. Torben Schubert & Radhamany Sooryamoorthy, 2010. "Can the centre–periphery model explain patterns of international scientific collaboration among threshold and industrialised countries? The case of South Africa and Germany," Scientometrics, Springer;Akadémiai Kiadó, vol. 83(1), pages 181-203, April.
    4. Rigas Arvanitis & Roland Waast & Jacques Gaillard, 2000. "Science in Africa: A Bibliometric Panorama Using PASCAL Database," Scientometrics, Springer;Akadémiai Kiadó, vol. 47(3), pages 457-473, March.
    5. Confraria, Hugo & Mira Godinho, Manuel & Wang, Lili, 2017. "Determinants of citation impact: A comparative analysis of the Global South versus the Global North," Research Policy, Elsevier, vol. 46(1), pages 265-279.
    6. Hannes Toivanen & Branco Ponomariov, 2011. "African regional innovation systems: bibliometric analysis of research collaboration patterns 2005–2009," Scientometrics, Springer;Akadémiai Kiadó, vol. 88(2), pages 471-493, August.
    7. Perianes-Rodriguez, Antonio & Waltman, Ludo & van Eck, Nees Jan, 2016. "Constructing bibliometric networks: A comparison between full and fractional counting," Journal of Informetrics, Elsevier, vol. 10(4), pages 1178-1195.
    8. Henk F. Moed, 2016. "Iran’s scientific dominance and the emergence of South-East Asian countries as scientific collaborators in the Persian Gulf Region," Scientometrics, Springer;Akadémiai Kiadó, vol. 108(1), pages 305-314, July.
    9. Philippe Mongeon & Adèle Paul-Hus, 2016. "The journal coverage of Web of Science and Scopus: a comparative analysis," Scientometrics, Springer;Akadémiai Kiadó, vol. 106(1), pages 213-228, January.
    10. Marianne Gauffriau & Peder Olesen Larsen & Isabelle Maye & Anne Roulin-Perriard & Markus Ins, 2008. "Comparisons of results of publication counting using different methods," Scientometrics, Springer;Akadémiai Kiadó, vol. 77(1), pages 147-176, October.
    11. Nelius Boshoff, 2009. "Neo-colonialism and research collaboration in Central Africa," Scientometrics, Springer;Akadémiai Kiadó, vol. 81(2), pages 413-434, November.
    12. 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.
    13. Derek De Solla Price, 1976. "A general theory of bibliometric and other cumulative advantage processes," Journal of the American Society for Information Science, Association for Information Science & Technology, vol. 27(5), pages 292-306, September.
    14. Raf Guns & Ronald Rousseau, 2014. "Recommending research collaborations using link prediction and random forest classifiers," Scientometrics, Springer;Akadémiai Kiadó, vol. 101(2), pages 1461-1473, November.
    15. Leo Katz, 1953. "A new status index derived from sociometric analysis," Psychometrika, Springer;The Psychometric Society, vol. 18(1), pages 39-43, March.
    16. Georghiou, Luke, 1998. "Global cooperation in research," Research Policy, Elsevier, vol. 27(6), pages 611-626, September.
    17. Tao Zhou & Linyuan Lü & Yi-Cheng Zhang, 2009. "Predicting missing links via local information," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 71(4), pages 623-630, October.
    18. 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.
    19. Yan, Erjia & Guns, Raf, 2014. "Predicting and recommending collaborations: An author-, institution-, and country-level analysis," Journal of Informetrics, Elsevier, vol. 8(2), pages 295-309.
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