Physics – Condensed Matter – Disordered Systems and Neural Networks
Scientific paper
2007-04-08
Physica A 387, 1009(2008)
Physics
Condensed Matter
Disordered Systems and Neural Networks
11 pages, 5 figures. Any comments are favored
Scientific paper
10.1016/j.physa.2007.09.047
Using probabilistic approach, the transient dynamics of sparsely connected Hopfield neural networks is studied for arbitrary degree distributions. A recursive scheme is developed to determine the time evolution of overlap parameters. As illustrative examples, the explicit calculations of dynamics for networks with binomial, power-law, and uniform degree distribution are performed. The results are good agreement with the extensive numerical simulations. It indicates that with the same average degree, there is a gradual improvement of network performance with increasing sharpness of its degree distribution, and the most efficient degree distribution for global storage of patterns is the delta function.
chen Yong
Zhang Pei-Pei
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