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

Raf Guns and Lili Wang ()

Journal of Informetrics, 2017, vol. 11, issue 3, 892-903

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.

Keywords: Scientific research; Collaboration; Networks; Link prediction; Africa; Geographic groups; Outside-Africa collaboration; Within-Africa collaboration (search for similar items in EconPapers)
Date: 2017
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (5)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S1751157716303790
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:infome:v:11:y:2017:i:3:p:892-903

DOI: 10.1016/j.joi.2017.07.004

Access Statistics for this article

Journal of Informetrics is currently edited by Leo Egghe

More articles in Journal of Informetrics from Elsevier
Bibliographic data for series maintained by Catherine Liu ().