资源描述:
《GUEST EDITORIAL Genetic Algorithms and Machine Learning》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、MachineLearning3:95-99,1988©1988KluwerAcademicPublishers-ManufacturedinTheNetherlandsGUESTEDITORIALGeneticAlgorithmsandMachineLearningMetaphorsforlearningThereisnoapriorireasonwhymachinelearningmustborrowfromnature.Afieldcouldexist,completewithwell-definedalgorithms,datastructures,andtheoriesoflear
2、ning,withoutoncereferringtoorganisms,cognitiveorgeneticstructures,andpsychologicalorevolutionarytheories.Yetattheendoftheday,withthepositionpaperswritten,thecomputerspluggedin,andtheprogramsdebugged,alearningedificedevoidofnaturalmetaphorwouldlacksomething.Itwouldignorethefactthatallthesecreationsh
3、avebecomepossibleonlyafterthreebillionyearsofevolutiononthisplanet.ItwouldmissthepointthattheveryideasofadaptationandlearningareconceptsinventedbythemostrecentrepresentativesofthespeciesHomosapiensfromthecarefulobservationofthemselvesandlifearoundthem.Itwouldmissthepointthatnaturalexamplesoflearnin
4、gandadaptationaretreasuretrovesofrobustproceduresandstructures.Fortunately,thefieldofmachinelearningdoesrelyuponnature'sbountyforbothinspirationandmechanism.Manymachinelearningsystemsnowborrowheavilyfromcurrentthinkingincognitivescience,andrekindledin-terestinneuralnetworksandconnectionismisevidenc
5、eofseriousmechanisticandphilosophicalcurrentsrunningthroughthefield.Anotherareawherenat-uralexamplehasbeentappedisinworkongeneticalgorithms(GAs)andgenetics-basedmachinelearning.Rootedintheearlycyberneticsmovement(Holland,1962),progresshasbeenmadeinboththeory(Holland,1975;Hol-land,Holyoak,Nisbett,&T
6、hagard,1986)andapplication(Goldberg,1989;Grefenstette,1985,1987)tothepointwheregenetics-basedsystemsarefind-ingtheirwayintoeverydaycommercialuse(Davis&Coombs,1987;Fourman,1985).GeneticalgorithmsandclassifiersystemsThisspecialdoubleissueofMachineLearningisdevotedtopapersconcern-inggeneticalgorithmsa
7、ndgenetics-basedlearningsystems.Simplystated,geneticalgorithmsareprobabilisticsearchproceduresdesignedtoworkonlargespacesinvolvingstatesthatcanberepresentedbystrings.Thesemeth-odsareinherentlyparallel,using