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1、JournalofComputerApplicationsISSN1001—90812015.07..10計算機應(yīng)用,2015,35(7):1969—1974CODENJYIIDUhttp://www.joca.ca文章編號:1001—9081(2015)07—1969-06doi:10.11772/j.issn.1001-9081.2015.07.1969基于動態(tài)評價選擇策略的改進人工蜂群算法徐向平,魯海燕’,程畢蕓(江南大學(xué)理學(xué)院,江蘇無錫214122)(}通信作者電子郵箱luhaiyan@jiangnan,ed
2、u,e/1)摘要:針對標準人工蜂群(ABC)算法易陷入局部極值的問題,對標準ABC算法的輪盤賭選擇機制進行了修改,提出了一種基于動態(tài)評價選擇策略的改進人工蜂群(DSABC)算法。首先,根據(jù)到當(dāng)前為止一定迭代次數(shù)內(nèi)蜜源位置的連續(xù)更新或停滯次數(shù),對每個蜜源位置進行動態(tài)評價;然后,利用所得的評價函數(shù)值為蜜源招募跟隨蜂。在6個經(jīng)典測試函數(shù)上的實驗結(jié)果表明:與標準ABC算法相比,動態(tài)評價選擇策略改進了標準ABC算法的選擇機制,使得DSABC算法的求解精度有較大幅度提高,特別是對于兩種不同維數(shù)的Rosenbrock函數(shù),所得最優(yōu)
3、值的絕對誤差分別由0.0017和0.0013減小到0.000049和0.000057;而且,DSABC算法克服了進化后期因群體位置多樣性丟失較快而產(chǎn)生的早熟收斂現(xiàn)象,提高了整個種群的收斂精度及解的穩(wěn)定性,從而為函數(shù)優(yōu)化問題提供了一種高效可靠的求解方法。關(guān)鍵詞:群體智能;人工蜂群算法;動態(tài)評價選擇策略;收斂精度;函數(shù)優(yōu)化中圖分類號:TP301.6;TP18文獻標志碼:AImprovedartificialbeecolonyalgorithmbasedondynamicevaluationselectionstrateg
4、yXUXiangping,LUHaiyan,CHENGBiyun(SchoolofScience,JiangnanUniversity,WuxiJiangsu214122,China)Abstract:ToovercometheproblemofeasilytrappingintolocaloptimaofstandardArtificialBeeCotony(ABC)algorithm,therouletteselectionstrategyofABCwasmodifiedandanimprovedABCbased
5、ondynamicevaluationselectionstrategy(DSABC)algorithmwasproposed.Firstly,thequalityofeachfoodsourcepositionwasevaluateddynamicallyaccordingtothetimesthatthefoodsourcepositionhadbeencontinuouslyupdatedorstagnatedwithinacertainnumberofiterationsSOfar.Then,onlooker
6、beeswererecruitedforthefoodsourceaccordingtotheobtainedvalueoftheevaluationfunction.Theexperimentalresultsonsixbenchmarkfunctionsshowthat,comparedwithstandardABCalgorithm,theproposeddynamicevaluationselectionstrategymodifiestheselectionstrategyofABCalgorithm,an
7、dgreatlyimprovesthequalityofsolutionofDSABCalgorithm,especiallyforfunctionRosenbrockwithdiferentdimensions,theabsoluteerrorofthebestsolutionreducesfrom0.0017and0.0013to0.000049and0.000057,respectively;Moreover,DSABCalgorithmcanavoidtheprematureconvergencecaused
8、bythedecreaseofpopulationdiversityatlaterstageandimprovetheaccuracyandstabilityofsolutions,thusprovidesanefficientandreliablesolutionmethodforfunctionoptimization.Keywords:s