Nonlinear Sciences – Adaptation and Self-Organizing Systems
Scientific paper
2003-10-23
Eur. Phys. J. B 38, 495-500 (2004)
Nonlinear Sciences
Adaptation and Self-Organizing Systems
5 pages, 4 figures (eps)
Scientific paper
10.1140/epjb/e2004-00144-7
We study a model of associative memory based on a neural network with small-world structure. The efficacy of the network to retrieve one of the stored patterns exhibits a phase transition at a finite value of the disorder. The more ordered networks are unable to recover the patterns, and are always attracted to mixture states. Besides, for a range of the number of stored patterns, the efficacy has a maximum at an intermediate value of the disorder. We also give a statistical characterization of the attractors for all values of the disorder of the network.
Abramson Guillermo
Kuperman Marcelo N.
Morelli Luis G.
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