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ID:36354094
大小:3.27 MB
页数:79页
时间:2019-05-10
《基于多重关系领域知识的分类问题研究》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、Y870550基于多重关系领域知识的分类问题研究TheResearchofClassificationBasedonMulti—RelationDomainKnowledge作者姓名翅逝斐学位类’型堂压亟±学科、专业盐篡扭虞盛蘧盛研究方向厶王蟹建皇数握撞翅导师及职称:塑堂姻熬鬟2006年4月TheResearchofClassificationBasedonMulti-RelationDomainKnowledgeAbstractWiththeexplosivegrowthofthesizeofdatabases,knowledgediscoveryindatabases(KDD)ar
2、efacingnewproblemssuchas,focusingsearchtorelevantportionofdata,makingthediscoveredpatternsmoremeaningfulandSOon.Additionalknowledge,calleddomainknowledge(DK),isusedtohelpthestepsofthediscoveryprocesssuchasdatapre-pmcessing,findingthestrongrelevantattributes,generalizingtheconceptstomoreinteresti
3、nglevels,guidingthediscoveryprocesstoextractmoreusefulrules,interpretingthediscoveredresultsandmakingtheresultsbemorcunderstandabletotheenduserandSOon,SOastomakethediscoveryprocessmoreefficientlyandeffectively.However,theresearchandapplicationreferringtothisresearchfieldareataprimarystage,thusde
4、serveourexploringandfurtherresearch.KDDbasedonDKisanewlypromisingresearchfield.ConceptlaRice,alsocalledGCL(GaloisConceptLattice)isacompleteformofknowledgerepresentation.Inthedissertation,incorporatingdomainknowledgebasedonconceptlatticeisproposed,whichisintendtofindtheinnerrelationshipamongattri
5、butevalfies.ThecontentOfthedissertationisaSfollows:1.TheroleofdomainknowledgeintheprocessofKDDiSdiscussedindetail.Basedondifferentrepresentationofdomainknowledge,theeffectandthecorrespondingmechanismofusingdomainknowledgearedifferent.2.TheessentialpurposeofKDDistofindthepotentialrelationshipamon
6、gdatathatdescribedinmulticonceptlevets.However,thedatastoredintherealworlddatabasescorrespondtoacertainspecializedlevel,whichCan’trevealthecolnmorlinformationamongthesedata.Thisdissertationincorporatesmulti—relationdomainknowledgethatCallbeusedtofindtheinnerrelationshipofattributesintoknowledged
7、iscoveryandutilizesconceptlatticefordescribingtheclosestrelationshipamongattributevalues.3.Aclassificationalgorithmisalsopresented,whichdemonstratesthesuperiorityofusingmulti—relationdomainknowledgerepresentedbyconceptlaRice
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