个性化主动信息推送技术研究

华中科技大学硕士学位论文个性化主动信息推送技术研究姓名：张玉婷申请学位级别：硕士专业：系统工程指导教师：郭敏20070131IURLAgent-IIAgentIIIAbstractWiththedevelopmentandapplicationofInternettechnologyandcomputertechnology,atthesametime,withtheopenpropertyoftheInternettechnology,itcausestheexplosionincrementoftheinformationresourceonInternet.AnditismoreandmoredifficultforpeopletogetinformationfromtheInternet.Copingwiththissituation,itbringstheSearchEnginetechnologyintotheworld,andgetsrapiddevelopment.SearchEnginekeepsonaccessingwebsite,establishingandcompletingtheindexdatabaseofkeywordstoURL.Andthentheuserinputsthekeywordstoexpresshisdemands,andpullstherelevantinformationfromtheindexdatabase.Duringtheprocess,therearesomeproblems.Tosolvetheseproblems,thecominginformationservicesystemdevelopmentdirectionispushtechnologyoppositetothepulltechnology.Thepushtechnologychangestheuser’smodetogetnetworkinformation.Butinthemodernsocietyfullwithindividualization,everyonedesiresforindividualizedservicemode,socustomizedactiveinformationpushtechnologyisameaningfulresearchsubject.Firstofall,thisthesisintroducestheresearchanddevelopmentsituationofinformationretrievaltechnology.Andthen,itintroducesandanalyzessomerelevantknowledgeandtechnologies,includingAgenttechnology,informationacquisitiontechnology,user’sinterestingminingtechnology,theevaluationcriterionofactiveinformationpushtechnology,andtheobject,systemarchitecture,systemfinestructure,andtheevaluationofthecustomizedactiveinformationpushsystem.Theacquisitionofuser’sinterestingknowledgeisthepriorconditionandfoundationofthecustomizedinformationretrieval.Thethesisanalyzestheresourcesofuser’sinterestingknowledge,andexplicatestheextraction,modificationoftheuser’sinteresting,especiallyanewmethod-“question-andanswer”method,appliedinthesystem,inordertosolvetheproblemoftheacquisitionofuser’sinterestingknowledge.IVEverykindsystemhasitsownevaluationcriterion,thepaperhastwopartstoevaluatethesystem.Firstofall,itistheevaluationofsearchresult,includingrecall,precisionandrecall-precisioncurve.Andthen,itestablishesapushsystemmode,andfromthismode,itderivativestheformulaofinformationusefulextent,informationuselessextentandactivepushextent.Acustomizedactivepushexperimentalsystemisdesignedandrealized.Thethesisexplicatestherealizetechnology,andevaluatesthesystem.Theresearchprovidesreferencesolutionaboutcustomizedactivepushtechnologyonthenetwork.Keywords:Customized,InformationAcquisition,ActivePush,MobileAgent,InterestingMining_____111.1[1]1010[2]pullpushpullpushpullpush2Pullpush[2]pullpullpullpullPullURLURLURLpullPullInternetpull[3]PullpushpullpushpullpushPush3Pullpushpullpush[4]1.220[5]PushNetcastWebcastTechnology[6]PointCastNetwork19962090push[7][8][9]push42090pushpush1997push2000pushpushInternet/IntranetPointCastNetworkPushPointcastCastnetPointcastCastnetJavaJavaJava[3][6]pushIBASEOne-ShotneusoftMPush19991210push[7][8]push[9][10][11][12]51PointCastPointCast20CNNPointCastPointCastPointCastpullpull2MarimbaCastanetTransmitterChannelTunerCastanetCastanetCastanetPointCastCastanet3Netscape1997Netcaster,NetcasterChannelFinderCNNHotWiredwebChannelNetcaster4MicrosoftCDFChannelDefinitionFormatCDFwebCDFCDF65StarBurstStarBurstMulticastMFTPMFTPPush[13]123456push[3][13]1Pushpush2Pushpush374Pushpushpush5Push1.3Agentpush1.1push1.1push8AgentAgentAgentAgentAgent92Agent2.1Internet//AgentAgentwebAgent[14][15]AgentAgentAgentAgentAgent2.2AgentAgent[16][17]AgentAgentAgent1210Agent[17]WooldrigeIntelligentAgentsTheoryandPracticeAgent[18][19]2.1.1AgentAgent1AgentAgent2AgentAgentAgent3Agent4AgentAgentShohamAgentAgent1Agent2Agent3AgentAgent4Agent[17]Agent2.1Agent2.1Agent[17]AgentAgentAgentAgent11AgentAgentAgent2.1.2RussellNorvig[16]AgentAgentAgentAgentAgentAgentAgentAgent2.3Agent2.3.1AgentAgent[18][19]AgentAgentAgent1Agent122Agent3Agent4AgentAgent5AgentAgentAgentAgentAgentAgentAgent[17]1AgentAgent2InternetAgentAgentAgent313AgentAgentAgentAgentAgent4AgentAgentAgent5Agent6Agent7Agent8AgentAgent142.3.2AgentAgentAgentAgent2.2[18]AAgentBBAgentAAgentBAgentAAgentAgentABBAAgent2.2Agent2.3.3AgentAgentAgentAgentAgentAgentAgentATPACLACLAgentAgentAgent1Agent2Agent1Agent22.3Agent15AgentATPAgentAgentAgentAgentACLSACLAgent2.3[17]Agent2.4[17]AgentAgentAgent2.4AgentAgentAgentAgentAgentAgentAgentAgent2.3.4AgentAgentAgentAgentAgentAgentAgentAgentAgent1AgentAgentAgent2AgentAgent163AgentAgent4AgentAgentAgentAgentAgentAgentAgent5AgentAgentAgentAgentAgentAgentAgentAgentAgentAgentAgentAgentAgentAgentAgentAgentAgentAgentAgent2.5[17]AgentAgentAgentAgentAgentAgentContext2.5Agent1Agent2AgentATPAgent17ACLAgent3AgentContextAgentAgentAgent4AgentAgent5Agent6AgentAgent2.3.5AgentAgentAgent[17][17]2.62.6AgentAgentAgent18AgentAgentAgentAgentAgentAgentAgent2.4webAgentwebAgentwebAgentAgentAgentAgentAgentwebAgentAgentAgentAgentAgentwebAgentAgentwebAgent2.8AgentAgentAgentAgentAgentAgent19webAgentAgent2.8webAgentAgentAgentAgent2.9webAgent2.9AgentAgent203AgentwebAgent3.13.1.1[1][1]21Agent[20]3.13.1wi∑==iWkkkiwwinNfnNfiwweight122))/(lg()()/lg(),(wifwiNwnwiWi)/lg(wnNnqd22∑∑∑====niniiiniiirqdqdqsimilarity11221)()(),(3