The improvements of NGA are as following:the discriminating standard L for distances among individuals set as dynamic function to keep the diversity of colonies;the elitist strategy is adopted to ensure the convergence of the algorithm;the circling strategy of local extreme values is used as auxiliary termination principle to avoid falling into local optima.

To overcome these deficiencies resulting in the precocity and stagnation,the parameters of the city selective strategy and the local optimization searching strategy are adopted.

The solution to it has experienced from global justification to local justification and to new global justification.

Study on mine fire comprehensive prevention of genetic algorithms optimal strategy;

Realization of optimal strategy for power system low-frequency and low-voltage load reduction;

Aim at the countermeasure between missiles and targets in space,the space simulation model based on differential games for SAM was established and its optimal strategy of resistance was deduced Moreover the adaptive critic neural networks arithmetic method was presented and used to calculated the simulation model.