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Network Effects on Scientific Collaborations

Figure 2

Conceptualization of the research questions of this study.

(a) Illustration of the first research question (i.e., how the citation count of a scientific paper is affected by the network positions of its all co-author(s) in a co-authorship network?) based on Figure 1C. Avg stands for statistical function Average which is used to normalize different network attributes (i.e., degree centrality, closeness centrality and betweenness centrality) of authors. The “?” symbol above the line indicates, whether or not, the measure on its left hand side has any impact on the measure on its right hand side. (b) Illustration of the second research question (i.e., how the strength of scientific relations (i.e., co-authorship relations) between two authors is affected by their network positions in a co-authorship network?) based on Figure 1C. Avg and “?” represent the same as like in (a). (c) Summary of research investigations. NP stands for Network Position in respect of network measures considered in this study (i.e., degree centrality, closeness centrality and betweenness centrality), CC stands for Citation Count and TS stands for Tie strength. The symbol ‘↔’ stands, whether the left hand measure of the symbol has any impact on its right hand measure.

Figure 2

doi: https://doi.org/10.1371/journal.pone.0057546.g002