航空領(lǐng)域知識(shí)自動(dòng)提取技術(shù)初步研究

1、南京航空航天大學(xué)碩士學(xué)位論文航空領(lǐng)域知識(shí)自動(dòng)提取技術(shù)初步研究姓名：孫勤紅申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：載運(yùn)工具運(yùn)用工程指導(dǎo)教師：顧宏斌20080101航空領(lǐng)域知識(shí)自動(dòng)提取技術(shù)初步研究iiABSTRACTNowCBTdevelopmentlevelishighereverydaycrelativetechnologyismemature.InthedevelopmentprocessCBTneedknowledgedatabase.Sothet

2、extlanguageknowledgeautomatismextractionbecomesoneofthekeytechniqueintheCBTtechnologydevelopment.IndertoautomaticextracttextknowledgeThepaperresearchcarryoutautomaticextractionfromaviationdomainusinginfmationextractionte

3、chnologynaturallanguageprocessing.Thepaperlimitstherangeofthetextisaviationdomainknowledgefmusestextlanguage.Thepaperconcludesthetypicalknowledgemodethroughanalysissummarizebyhwk.thepaperobtainspatternrulefmsruledatabase

4、throughregularexpression.Thepaperusewdmembershipsentencemembershipofknowledgetofilterthesentencesfromwidematching.AccountingWdmembershipisbasedonaviationmaterialPeoples’dailymaterial.Firstthepapergetwdsegmentingtothetwom

5、aterialcountwdmembership.Throughwdmembershipsentencemembershipiscounted.Iftheknowledgeappearstwomeitisconflictedwhentosavetoknowledgedatabase.ThesolutiontotheproblemisbyusingVSMcountingsimilitudewhichthemaxfrom.Experimen

6、tsindicatethattheknowledgeautomaticextractionsystemissuccessful.Theprecisionis76.51percenttherecallis83.78percent.Finallytheconclusionexpectationareisputfward.Keywds:InfmationextractionKnowledgeextraction，PatternVSM，Regu