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Table 3 Descriptive Statistics of the average amount of sampled and duplicate trends. It can be seen from the data that the Illusion spiral outperforms all others random strategies in terms of the number of sampled trends

From: Towards a standard sampling methodology on online social networks: collecting global trends on Twitter

Trends q(y|x) Avg
% Sampled Brownian 62.61 %
  Illusion 64.94 %
  Reservoir 49.06 %
% Duplicated Brownian 37.3 %
  Illusion 35.05 %
  Reservoir 50.93 %