This is a model that simulates the dynamic creation and maintenance of knowledge- based formations such as communities of scientists, fashion movements, and subcultures. The model's environment is a spatial one, representing not geo- graphical space, but a "knowledge space" in which each point is a different collection of knowledge elements. Agents moving through this space repre- sent people's differing and changing knowledge and beliefs. The agents have only very simple behaviors: If they are "lonely," that is, far from a local concentration of agents, they move toward the crowd; if they are crowded, they move away.
There is additional explanation of the code and the model in Nigel Gilbert (2007) Agent-Based Models. Quantitative Applications in the Social Sciences. Sage Publications.
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