Zobrazeno 1 - 10
of 15
pro vyhledávání: '"G. M. Shim"'
Publikováno v:
Journal of Statistical Physics. 91:125-153
Using a probabilistic approach, the parallel dynamics of fully connected Q-Ising neural networks is studied for arbitrary Q. A novel recursive scheme is set up to determine the time evolution of the order parameters through the evolution of the distr
Publikováno v:
International Journal of Neural Systems. :655-664
Using a signal-to-noise analysis, the effects of nonlinear modulation of the Hebbian learning rule in the multi-class proximity problem are investigated. Both random classification and classification provided by a Gaussian and a binary teacher are tr
Publikováno v:
Journal of Physics A: Mathematical and General. 26:3697-3705
The authors investigate the effects of the synaptic noise in neural networks at finite temperatures. The analytic results are obtained through the use of the path-integral formulation which facilitates performing the quenched average over the random
Publikováno v:
Physical Review A. 45:1238-1248
The layered feedforward neural network is extended to a q-state Potts-glass model. The Potts-glass version of the network is realized by imposing local inhibition on a group of Ising spins and introducing competitive updating rules on them. The dynam
Publikováno v:
Physical Review A. 43:7012-7018
Publikováno v:
Physical Review A. 43:1079-1089
Publikováno v:
Physical Review Letters. 94
We study a zero range process on scale-free networks in order to investigate how network structure influences particle dynamics. The zero range process is defined with the particle jumping rate function $p(n)=n^\delta$. We show analytically that a co
Publikováno v:
Physical review. E, Statistical, nonlinear, and soft matter physics. 70(3 Pt 1)
We present an analytic study of the three-urn model for separation of sand. We solve analytically the master equation and the first-passage problem. We find that the stationary probability distribution obeys the detailed balance and is governed by th
Publikováno v:
Scopus-Elsevier
We present an analytic study of the urn model for separation of sand recently introduced by Lipowski and Droz (Phys. Rev. E 65, 031307 (2002)). We solve analytically the master equation and the first-passage problem. The analytic results confirm the
Autor:
Désiré Bollé, G. M. Shim
Publikováno v:
Physical review. E, Statistical, nonlinear, and soft matter physics. 65(6 Pt 2)
The time evolution of the local field in symmetric Q-Ising neural networks is studied for arbitrary Q. In particular, the structure of the noise and the appearance of gaps in the probability distribution are discussed. Results are presented for sever