口語對話系統(tǒng)中文法規(guī)則自動推導研究

1、河南師范大學碩士學位論文口語對話系統(tǒng)中文法規(guī)則自動推導研究姓名：張合申請學位級別：碩士專業(yè)：計算機軟件與理論指導教師：王曉東20090401ABSTRACTTherearesuchproblemsforaccesstogrammarinrole—basedSpokenDialogueSystems(SDS)：Firstlythegrammarisoftendesignedbyexperts，andthisworkdependsonthe

2、irprofessionalknowledgeandexperience，SOitisimpossibleforordinarydeveloperstofinishthisworkSecondlythegranlmarisoftendesignedmanuallyandthisworkisverycockamamieFinallythegrammardesignedforadomainisverydifficulttoapplytoan

3、otherdomainSoitisobligatorytodesignnewgramlnarforeveryapplicationWiththedevelopmentoftheincreasingsocialneedsandscaleofsystem，ithasbecomeamajorbottleneckfordevelopmentaspokendialoguesystemSpecifictothecharacteristicofSDS

4、，thisthesistookatypeofenhancedcontextfreegrammarforChinesespokenlanguage舔objectresearchedthetechnologiesforautomaticgrammarinferenceinSDS1Thefeaturesandperformanceofcommongrammarwerecomparedandanalyzedandatypeofenhancedc

5、ontextfleegFalD_lTlarforChinesespokenlanguagewasresearchedmainlyAndthentookitas0bjectaccordingtothelanguagecharacteristicsinSDStoresearchthetechnologiesforautomaticgranlnlarinference2Amethodforautomaticgrammarinferenceba

6、sedonsentencesegmentationisproposedinthisthesisThemainideaistoparsethetrainingsentenceswithaninitialrulesetIftheparsedsyntactictreeisincomplete，thetopmostconstituentsareusedtorecursivelyinferthemissingrulesafterdisambigu

7、ationandnormalization，andthentherulesetisupdatedThemethodsofdisambiguationandnormalizationforsegmentationswereresearchedinthisthesisInordertoimprovetheoutputgrammartheprocessingorderofthetrainingsentencesisadjustedandthe

8、method’Sprocessisrefined3Thedomain—specificgrammarevaluationtechnologieswereresearchedinthisthesisAndasetofflexibleevaluationtechnologiesWasproposedwhichCanbecustomizedforspecialdomainSomeexperimentshadbeendonetoevaluate

9、theperformanceofthealgorithmproposedinthisthesisinthedomainofweatherforecastenquiryTheparsingaccuracyoftheoutputgrammarachieved648％withanemptyinitialrulesetand864％withaninitialrulesetonlyincludingrulesfordatedescriptionK