Figure 2

The network of significant Wikipedia co-editing ties between language pairs. Nodes are coloured according to the clusters found by the Infomap algorithm [50], and link weights within clusters represents the positive deviation of z-scores from the threshold of randomness; links are significant at the 99% level. For visualisation purposes we display only 23 clusters and the strongest inter-cluster links in the network. The inter-cluster links show the aggregated z-scores between all nodes of a pair of clusters. The network suggests that local factors such as shared language, linguistic similarity of languages, shared religion, and geographical proximity play a role in interest similarity of language communities. Notably, English forms a separate cluster, which suggest little interest similarity between English speakers and other communities.