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. Author manuscript; available in PMC: 2018 Jun 22.
Published in final edited form as: Vaccine. 2017 May 27;35(29):3621–3638. doi: 10.1016/j.vaccine.2017.05.052

Figure 1. Maximum k-core subgraphs show clusters of significant vaccine concepts within the semantic networks.

Figure 1

Figure 1

Figure 1

Visualizations of maximum k-cores (i.e., the maximal connected subgraph in which all nodes have degree of at least k) for networks of [a.] positive vaccine sentiment (k = 4), [b.] negative vaccine sentiment (k = 4), and [c.] neutral vaccine sentiment (k = 2) where increasing node and text size represents increasing betweenness centrality.