基于本体和规则推理的web知识资源个性化检索-研究

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1、基于本体和规则推理的Web知识资源个性化检索研究合OWL本体和SWRL／SWRLFOL规则的推理平台基础上，设计了Web知识资源个性化检索方案：分别设计了以OWL本体呈现的领域知识模型、资源空间模型、用户模型和以SWRL／SWRLFOL规则呈现的个性化匹配机模型，通过将各模型中的本体和规则映射为一阶谓词逻辑公式，在一阶谓词逻辑推理机上推理来实现Web知识资源个性化检索。本文最后以一个Web计算机程序题个性化检索的原型实验系统检验了本研究中个性化检索方案的可行性。关键词：OWL，SWRL，SWRLFOL，Web知识资源，个性化检索．IV基于本体和规则推理的Web知识资源个性化检索研究PERSON

2、ALIZEDRETRIEVALFORWEBKNOWLEDGERESOURCEBASEDONINFERENCESWITH0NTOLOGYANDRULESABSTRACTWiththerapiddevelopmentofNetwork，Webhasbeenahugedistributednetworkedinformationspacethatprovidesamassofinformationresource．ThereiSavaluablecategoryofresourcewhichcontainscertainknowledgeandpeoplecanimprovethetheirknow

3、ledgelevelbyvisitingtheresourceandmastertheknowledgeconceptcontainedbVit．Wecallthiskindofresource“knowledgeresource"．However,facinglargenumbersofknowledgeresourceontheW，eb．traditionalmethodsofinformationretrievalcannotfindtheproperknowledgeresourceswhicharerelevanttotheuser’Spersonalizedneed．First。t

4、hemeaningofknowledgeresourceontheWebcan’tbeunderstoodbycomputers，theknowledgeconceptcontaindedbytheknowledgeresourceiSnotalwaysexplicitlyshowedinthetextSOthatthekeyword．basedsearchhasdifficuriesfindingtherightresourcesthroughmatchinguser’Squarywithknowledgeresource’Stext．Second，conceptscontainedbykn

5、owledgeresourcesalwayshaverelationswitheachother．Peopleshouldhavemastere,dsomeotherknowledgeconceptsbeforehe／sheacquireanewconceptinanewknowledgeresource．Sincealmosteverypeoplehaveacquireddifferentknowledgeconcepts，differentknowledgebackground，anewknowledgeresourceisnotveryproperforeveryuser，howeVer

6、'traditonalmethodsofretrievaldonotconsiderthedifferenceofdifierentuser,souserscouldnotgetknowledgeresourcesthatarefitfortheirindividualknowledgebackground．TosolveabovedrawbacksintheretrievalforW色bknowledgeresources。thisthesisproposesamethodwhichcombines0眦V基于本体和规则推理的Web知识资源个性化榆索研究ontologieswithSWRL／S

7、WRLFOLrulesusingFirst-OrderLogic(FOL)reasonertomakeinferencesfulfillingW曲knowledgeresourcespersonalizedretrieval．Weconstructontologiesforknowledgeresourcesanddomainswhichconceptsinknowledgeresourcesre