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Hopf Bifurcation and Chaos in Tabu Learning Neuron Models | | Chunguang Li
; Guanrong Chen
; Xiaofeng Liao
; Juebang Yu
; | | Date: |
10 Nov 2004 | | Subject: | Chaotic Dynamics | nlin.CD | | Abstract: | In this paper, we consider the nonlinear dynamical behaviors of some tabu leaning neuron models. We first consider a tabu learning single neuron model. By choosing the memory decay rate as a bifurcation parameter, we prove that Hopf bifurcation occurs in the neuron. The stability of the bifurcating periodic solutions and the direction of the Hopf bifurcation are determined by applying the normal form theory. We give a numerical example to verify the theoretical analysis. Then, we demonstrate the chaotic behavior in such a neuron with sinusoidal external input, via computer simulations. Finally, we study the chaotic behaviors in tabu learning two-neuron models, with linear and quadratic proximity functions respectively. | | Source: | arXiv, nlin.CD/0411028 | | Services: | Forum | Review | PDF | Favorites | |
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