Ultrametricity increases the predictability of cultural dynamics

  title={Ultrametricity increases the predictability of cultural dynamics},
  author={Alexandru-Ionuţ Băbeanu and Jorinde van de Vis and Diego Garlaschelli},
A quantitative understanding of societies requires useful combinations of empirical data and mathematical models. Models of cultural dynamics aim at explaining the emergence of culturally homogeneous groups through social influence. Traditionally, the initial cultural traits of individuals are chosen uniformly at random, the emphasis being on characterizing the model outcomes that are independent of these (`annealed') initial conditions. Here, motivated by an increasing interest in forecasting… 

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