On preferred states of agents: how global structure is reflected in local structure

Anthony, T., Polani, D. and Nehaniv, C.L. (2008) On preferred states of agents: how global structure is reflected in local structure. In: Artificial Life XI : Procs of the 11th Int Conf on the Simulation and Synthesis of Living Systems. MIT Press, pp. 25-32. ISBN 978-0-262-75017-2
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We investigate the correlation between the information theoretic measure of empowerment and the graph theoretic measure of closeness centrality, to better understand the structural conditions that must exist in a world for learning and adaptation. We examine both measures in both a simple gridworld scenario, represented as a graph, and on a scale-free graph. We show a strong correlation between the two measures, and discuss the strengths and weaknesses of both. We go on to show how the local measurement of empowerment can in many cases predict a measure for the global measurement of closeness centrality.


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