4Suzuki K, Kakaza Y. An approach to the analysis of the basins of the associatiative memory model using genetic algorithms [J] .Proc. of 4th Conf. on GA, San Meteo, 1991.539 -546.
5Chng E J,rithms toLippmann R P. Using genetical goimprove pattern classification performance[J]. Advance in Neural informting Processing 3, San Matero, 1991: 797-803.
6Holland J H . Adaptation in natural and artifieial systems [M ] .MI : University of Michiagn Press, 1975.