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Network Effects on Scientific Collaborations

Author

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  • Shahadat Uddin
  • Liaquat Hossain
  • Kim Rasmussen

Abstract

Background: The analysis of co-authorship network aims at exploring the impact of network structure on the outcome of scientific collaborations and research publications. However, little is known about what network properties are associated with authors who have increased number of joint publications and are being cited highly. Methodology/Principal Findings: Measures of social network analysis, for example network centrality and tie strength, have been utilized extensively in current co-authorship literature to explore different behavioural patterns of co-authorship networks. Using three SNA measures (i.e., degree centrality, closeness centrality and betweenness centrality), we explore scientific collaboration networks to understand factors influencing performance (i.e., citation count) and formation (tie strength between authors) of such networks. A citation count is the number of times an article is cited by other articles. We use co-authorship dataset of the research field of ‘steel structure’ for the year 2005 to 2009. To measure the strength of scientific collaboration between two authors, we consider the number of articles co-authored by them. In this study, we examine how citation count of a scientific publication is influenced by different centrality measures of its co-author(s) in a co-authorship network. We further analyze the impact of the network positions of authors on the strength of their scientific collaborations. We use both correlation and regression methods for data analysis leading to statistical validation. We identify that citation count of a research article is positively correlated with the degree centrality and betweenness centrality values of its co-author(s). Also, we reveal that degree centrality and betweenness centrality values of authors in a co-authorship network are positively correlated with the strength of their scientific collaborations. Conclusions/Significance: Authors’ network positions in co-authorship networks influence the performance (i.e., citation count) and formation (i.e., tie strength) of scientific collaborations.

Suggested Citation

  • Shahadat Uddin & Liaquat Hossain & Kim Rasmussen, 2013. "Network Effects on Scientific Collaborations," PLOS ONE, Public Library of Science, vol. 8(2), pages 1-12, February.
    • Handle: RePEc:plo:pone00:0057546
    DOI: 10.1371/journal.pone.0057546
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    References listed on IDEAS

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    1. Jiang Bian & Mengjun Xie & Teresa J Hudson & Hari Eswaran & Mathias Brochhausen & Josh Hanna & William R Hogan, 2014. "CollaborationViz: Interactive Visual Exploration of Biomedical Research Collaboration Networks," PLOS ONE, Public Library of Science, vol. 9(11), pages 1-8, November.

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