Figure 4

HypTrails-computed Bayesian evidence for hypotheses plausibility on shared editing interest Wikipedia data. Higher values of the Bayesian evidence denote that a hypothesis fits the data well. The bottom black line represents the hypothesis of random shared interests and the top grey line is the fit of data on itself - together forming an upper and lower limit for comparing hypothesis. The ranking of hypotheses should be compared for the same k. All hypotheses are significant, but the most plausible ones to explain cultural proximity are the shared language family, the bilingual, the shared religion, and the gravity law hypotheses. The results show that cultural factors such as language and religion play a larger role in explaining Wikipedia co-editing than geographical factors.