Observation of Phase Transitions in Spreading Activation Networks

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Science  29 May 1987:
Vol. 236, Issue 4805, pp. 1092-1094
DOI: 10.1126/science.236.4805.1092


Phase transitions, similar to those seen in physical systems, are observed in spreading activation networks. Such networks are used both in theories of cognition and in artificial intelligence applications. This result confirms a predicted abrupt behavioral change as either the topology of the network or the activation parameters are varied across phase boundaries.