影响.[J].应用智能,,:---.[]RudolphR.经典遗传算法收敛分析.[J].基于神经网络IEEE转录,,():---.TransactionsofTianjinUniversityVol.No.Jun.ImprovedGeneticAlgorithmandItsPerformanceAnalysisLUOPi(罗批),LIQiang(李锵),GUOJichang(郭继昌),TENGJianfu(滕建辅)(SchoolofElectronicInformationEngineering,TianjinUniversity,Tianjin,China)Abstract:Althoughgeneticalgorithmhasbecomeveryfamouswithitsglobalsearching,parallelcomputing,betterrobustness,andnotneedingdifferentialinformationduringevolution.However,italsohassomedemerits,suchasslowconvergencespeed.Inthispaper,basedonseveralgeneraltheorems,animprovedgeneticalgorithmusingvariantchromosomelengthandprobabilityofcrossoverandmutationisproposed,anditsmainideaisasfollows:atthebeginningofevolution,oursolutionwithshorterlengthchromosomeandhigherprobabilityofcrossoverandmutation;andatthevicinityofglobaloptimum,withlongerlengthchromosomeandlowerprobabilityofcrossoverandmutation.Finally,testingwithsomecrit