網(wǎng)絡(luò)文本信息過濾模型及優(yōu)化策略研究.pdf

1、華中師范大學(xué)碩士學(xué)位論文網(wǎng)絡(luò)文本信息過濾模型及優(yōu)化策略研究姓名：明均仁申請學(xué)位級別：碩士專業(yè)：情報學(xué)指導(dǎo)教師：張帆20070501⑨碩士學(xué)位論文MASTERSTHESISAbstractNetworktextinformationfilteringisabranchofinformationfilteringItmainlyactstosearchUSer’Sinterestedinformationintlledynamictextf

2、lowaccordingtousersdemandedmodelasontheintemetthebasisofinformationmanifestationsisthetextinformationflowNetworktextinformationfilteringinvolvesawiderangeofknowledge，whichcombinesthetheoryofknowledge，artificialintelligen

3、cenaturallanguageunderstandingandotherfieldsofknowledgeAsanewfieldofstudynetworktextinformationfilteringhasbeengraduallydeepeningThetechnologyisincreasinglydifficultanditsdevelopmentisalsoincreasingfromsimulationtealityW

4、iththedevelopmentofcomputerapplicationsfromvisiontorealityandtheincreasingpopularityoftheInternettodaythenetworktextfilteringcaneffectivelysolvetheproblemofinformationlostintheinformationserviccsandmanagementaspect，playi

5、ngallincreasinglylargerroleInthispaperthenetworktextinformationfilteringmodelisthekeyresearchItismainlyontheWebfilteringmodelofusersandusermodelingtechnologyformatchingThenthenetworktextinformationfilteringmodelisgivenba

6、sedongeneralinformationfilteringapplicationmodelThepaperalsoanalysestheimportantcomponentsandfeaturesofthenetworkinformationfilteringmodelsuchasuserprofilesdocumentmodcl，userfeedbackThecommonlyusedmodelofthethreematching

7、technologywhichincludesBooleanlogicmodel，probabilitymodelandvectorspacemodelisfocusedFinallythepaperanalysesthetwotechnicaldefectsandamodifiedtextfilteringmodelisgivenTheimprovedtextfilteringmodelisbasedOilthevectorspace

8、modelandHownetdictionaryusingVSMwhichsaysthetextoftheflowofinformationandexpressionoftheneedsofusersandfurtheringexpansionoftheconcepttoimproveuserprofileandtextflowcharacterizationFinallytextfilteringmodelusequalityeval

9、uationmethodstofilteragainonthefirstfilterbasedtextinformationrelatedtotherelevantenhancingthevalueofcontentfilteringAlongwiththeinformationredundancyandincreaseddemandforinformationservices，textinformationfilteringtechn