Proportion of users whose community is correctly predicted. The proportion of users whose topological community association is correctly predicted by analysing a random sample of words, as a function of the number of words sampled. Results are presented for both the modularity maximisation partition (users from only English-speaking communities are shown as red pluses, users from any community as blue circles), and the Map Equation partition (English-speaking communities are shown as black crosses, all communities are as blue squares). For each data point, 5,000 users were tested. Standard error of each point is <1%