基于本体论和多主体的信息检索服务器

©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:1999211216;:2001203201(86323062ZT0220123)(69790080)(100080)([e-mail])Internet,Internet,.(ontology).,ontology,.,.,,TP18ANINFORMATIONRETRIEVALSERVERBASEDONONTOLOGYANDMULTI-AGENTWUCheng2Gang,JIAOWen2Pin,TIANQi2Jia,andSHIZhong2Zhi(LaboratoryofIntelligentInformationProcessing,InstituteofComputingTechnology,ChineseAcademyofSciences,Beijing100080)AbstractWithitsrapiddevelopmentandwidespread,theInternetoffersconvenientandshortcutwaystoretrieveinformationonit.However,tosearchsuchhugeandquicklychanginginformationontheInternet,moreexactandfasterretrievaltoolsshouldbedeveloped.Inthispaper,aninformationretrievalserverbasedonontologyandmulti2agentispresented,whichintegratesseveralkindofagents,suchasinterfaceagent,pre2processingagent,managementagent,informationprocessingagent,andinformationsearchingagentwithmobileability.Thesystemalsousesontologiestoclassifythedomainsofdocumentsandassistusertonormalizetheirqueries.Usingthissystem,dynamicchangesofinformationontheInternetcanbereflectedtimely,andthenavigationalabilityofretrievinginformationcanbeimproved.Keywordsontology,agent,informationretrieval1Internet.,1997,115Web65[1].Internet,:Internet,;,;,Web©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[2].,.(ontology),.,(informationretrievalserver).2,..,,:,,;,,;,.[3],,,.;;;.,;;,,.[4](domainexpert),Web,FilterWeb,,,,.,.,.,.,,.Web,;[3],Web.3,.[4],,,.3.1,,,.,,,.,.(1)(conceptualization)[5].NicolaGuarino[6]C:C=D,W,R,D,W(stateofaffairs),RD,W(conceptualrelation).2462001©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:[5].,.,WordNet[7],CYC[8],TOVE[9],Enterprise[10],KACTUS[11],Plinius[12],KSLontologyserver[13]SENSUS[14].[6],,.WordNet,.,WordNet,.terminology(Oi)DiOi();definition(Oi,keyword)Oikeyword;relation(Oi)Oi.(2),,,,,,.O1,O2,,OnD1,D2,,Dn,Ti=terminology(Oi),(0in).KS={key1,key2,,keym}Doc.,,.KSTi=§4doc|Di,1in.,,Ds1,Ds2,,Dsk,KSTsj§,s1sjsk..DS={dkû(dkTsj)(dkkeyidefinition(Osj,keyi))keyiKS,1im,s1sjsk},RO={objû(vx(xKSTsj)obj,xrelation(Osj))s1sjsk}.,DSROfreqsj,freqsjOsj,degree(Dsj)=freqsj.Ds1,Ds2,,Dskdegree(Dsj).,.(3),.,StefanoBorgo[15].,KEY={key1,key2,,keym},O1,O2,,On,Ds1,Ds2,,Dsk(vkey(keyKEY)and(keyTsj),j=s1,s2,,sk)Os1,Os2,,Oskkeyi,..,.3.2,,,.,,:(interfaceagent)(pre2processagent)(informationsearchingagent).,,(Web),.,(informationprocessingagent),,.,,,,,(managementagent).,,1.3466:©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[16].5:.5:.,,;,.,,;,.:.(2),,URL.,,.,.2,,.3.1,,,.4462001©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:,.,.(1)..:;.,,:..,,..,..,2,.,.,.,,.,,.,,,,,.,.,.Kindo(adaptivelearningalgorithm)[17],.,,,.,,.:;,5466:©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(),.,.,,,.,,.,,.(2),,,,,.:1).2),.,.,,.(i),,;,..(ii),,.,,,.3).4,.Internet,.,,:(1),,,.(2),,.,.(3),.,;,,;.(4),,.,,.,..,,;,..,WolfgangTheilmannTomRuss.6462001©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(2088):12132GuarinoN,MasoloC,VetereG.OntoSeek:Content2basedaccesstotheWeb.IEEEIntelligentSystems,1999,14(3):70803GehmeyrA,MllerJ,SchappertA.MobileinformationagentsontheWeb.In:KluschM,WeiBGeds.LectureNotesinArtificialIntelligence,vol1435.Berlin,Heidelberg,NewYork:Springer2Verlag,1998.2622774TheilmannW,RothermelK.DomainexpertsforinformationretrievalintheWorldWideWeb.In:KluschM,WeiBGeds.LectureNotesinArtificialIntelligence,vol1435.Berlin,Heidelberg,NewYork:Springer2Verlag,1998.2162275UscholdM,GruningerM.ONTOLOGIES:Principles,methodsandapplications.KnowledgeEngineeringReview,1996,11(2):931556GuarinoN.Formalontologyandinformationsystem.In:GuarinoNed.FormalOntologyinInformationSystems.Trento:IOSPress,1998.687MillerGA.WORDNET:AlexicaldatabaseforEnglish.CommunicationsoftheACM,1995,38(11):39418LenatD,GuhaRV.Buildlargeknowledge2basedsystems.RepresentationandInferenceintheCYCProject.Reading,Massachusetts:Addison2Wesley,19909GruningerM,FoxMS.Thelogicofenterprisemodeling.In:BrownJ,O’SullivanDeds.ReengineeringtheEnterprise.LondonEngland:ChapmanandHall,1995.839810UscholdM,KingM,MoraleeSetal.Theenterpriseontology.KnowledgeEngineeringReview,1998,13(1):3189.http:öö:BiochJC,TanYHeds.Procof7thDutchNationalConfonArtificialIntelligence,NAIC’95,Netherlands:EURIDIS,1995.15916812PaulEvanderVet,NicolaasJIMars.Structuredsystemofconceptsforstoring,retrievingandmanipulatingchemicalinformation.JournalofChemicalInformationandComputerSciences,1993,33:56456813FarquharA,FikesR,PrattWetalColl