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Agent-Based Models of Strategies for the Emergence and Evolution of Grammatical Agreement

Figure 7

Performance of the meaningful marker strategy.

Averages over 50 game series with 10 agents for 5000 games (average of 1000 per agent). There is no population change. i) Agents end up with an inventory markers. Compared to the formal marker strategy there is more variation which gets damped more slowly and there is considerably less efficiency (). ii) The evolution of marker preferences for a single experiment shows that many markers () get invented due to the many possible meanings that can potentially be used, but that a subset becomes dominant. The insert displays the frequency of marker usage which shows a long tail Zipfian distribution.

Figure 7