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Article: Betweenness centrality as a driver of preferential attachment in the evolution of research collaboration networks

TitleBetweenness centrality as a driver of preferential attachment in the evolution of research collaboration networks
Authors
Issue Date2012
Citation
Journal of Informetrics, 2012, v. 6 n. 3, p. 403-412 How to Cite?
AbstractWe analyze whether preferential attachment in scientific coauthorship networks is different for authors with different forms of centrality. Using a complete database for the scientific specialty of research about " steel structures," we show that betweenness centrality of an existing node is a significantly better predictor of preferential attachment by new entrants than degree or closeness centrality. During the growth of a network, preferential attachment shifts from (local) degree centrality to betweenness centrality as a global measure. An interpretation is that supervisors of PhD projects and postdocs broker between new entrants and the already existing network, and thus become focal to preferential attachment. Because of this mediation, scholarly networks can be expected to develop differently from networks which are predicated on preferential attachment to nodes with high degree centrality. © 2012 Elsevier Ltd.
Persistent Identifierhttp://hdl.handle.net/10722/194421
ISSN
2015 Impact Factor: 2.373
2015 SCImago Journal Rankings: 1.803
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorAbbasi, A-
dc.contributor.authorHossain, L-
dc.contributor.authorLeydesdorff, L-
dc.date.accessioned2014-01-30T03:32:34Z-
dc.date.available2014-01-30T03:32:34Z-
dc.date.issued2012-
dc.identifier.citationJournal of Informetrics, 2012, v. 6 n. 3, p. 403-412-
dc.identifier.issn1751-1577-
dc.identifier.urihttp://hdl.handle.net/10722/194421-
dc.description.abstractWe analyze whether preferential attachment in scientific coauthorship networks is different for authors with different forms of centrality. Using a complete database for the scientific specialty of research about " steel structures," we show that betweenness centrality of an existing node is a significantly better predictor of preferential attachment by new entrants than degree or closeness centrality. During the growth of a network, preferential attachment shifts from (local) degree centrality to betweenness centrality as a global measure. An interpretation is that supervisors of PhD projects and postdocs broker between new entrants and the already existing network, and thus become focal to preferential attachment. Because of this mediation, scholarly networks can be expected to develop differently from networks which are predicated on preferential attachment to nodes with high degree centrality. © 2012 Elsevier Ltd.-
dc.languageeng-
dc.relation.ispartofJournal of Informetrics-
dc.titleBetweenness centrality as a driver of preferential attachment in the evolution of research collaboration networks-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.joi.2012.01.002-
dc.identifier.scopuseid_2-s2.0-84860538143-
dc.identifier.volume6-
dc.identifier.issue3-
dc.identifier.spage403-
dc.identifier.epage412-
dc.identifier.isiWOS:000303660100006-

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