In this paper, we investigate dynamics of 2 almost periodic attractors for Cohen-Grossberg neural networks (CGNNs) with variable and distribute time delays. By imposing some new assumptions on activation functions and system parameters, we split invariant basin of CGNNs into 2 compact convex subsets. Then the existence of 2 almost periodic solutions lying in compact convex subsets is attained d...

We study the learning dynamics of neural networks from a general point of view. The environment from which the network learns is defined as a set of input stimuli. At discrete points in time, one of these stimuli is presented and an incremental learning step takes place. If the time between learning steps is drawn from a Poisson distribution, the dynamics of an ensemble of learning processes is...

For a general Cohen-Grossberg neural network model with potentially unbounded time-varying coefficients and infinite distributed delays, we give sufficient conditions for its global asymptotic stability. The model studied is general enough to include, as subclass, the most of famous neural network models such as Cohen-Grossberg, Hopfield, and bidirectional associative memory. Contrary to usual ...