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J. Phys. I France 2 (1992) 55-62 JANUARY 1992, PAGE 55 Classification

Summary: J. Phys. I France 2 (1992) 55-62 JANUARY 1992, PAGE 55
Physics Abstracts
87.30G 64.60C 75.10H
Simulation of a multineuron interaction model (*)
J. J. Arenzon (I), R. M. C. de Almeida (I), J. R. Iglesias (I), T. J. P. Penna(2) and
P. M. C. de Oliveira (2)
(1) Instituto de Fisica, Universidadc Federal do Rio Grande do Sul, C.P. 15051, 91500Porto
Alegre, RS, Brazil
(2) Instituto de Fisica, Universidade Federal Fluminense, C.P. 100296, 24020 Niter6i, RJ, Brazil
(Received 2 July 1991, accepted in final form 6 September1991)
Abstract We simulate the dynamics of a muitineuron model (RS model) witli an energy
function given by tile product between the squared distances in phase space between the state of
tile net and the stored pattems. We obtain the relative frequency f(m~) that an arbitrary pattem
is retrieved from an initial overlap m~ and estimate the size of the basins of attraction for different
activities a. Two limit cases are taken into account : when pattems and antipattems are stored
(p.a.s.) and when only the pattems are stored (o.p.s.). For the a =
0.5, p.a.s. nets a limit for the
load parameter was not found, but for the other cases (a,0.5 or o.p.s. configuration) the
relative size of the basins of attraction may become too small.


Source: Arenzon, Jeferson J. - Instituto de Física, Universidade Federal do Rio Grande do Sul
Ecole Polytechnique, Centre de mathématiques


Collections: Mathematics; Physics