Springer.A.General.Approach.to.Speech.Recognition

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1、ELECTRONICWORKSHOPSINCOMPUTINGSerieseditedbyProfessorC.J.vanRijsbergenIanRuthven(Ed)Miro'95ProceedingsoftheFinalWorkshoponMultimediaInformationRetrieval(Miro'95)Glasgow,Scotland18-20September1995Paper:AGeneralApproachtoSpeechRecognitionChristophGerberPublishedincollaborat

2、ionwiththeBritishComputerSocietyBCS©Copyrightinthispaperbelongstotheauthor(s)AGeneralApproachtoSpeechRecognitionChristophGerberDepartmentofComputingScience,UniversityofGlasgow,GlasgowG128QQ,UKAbstractTheaimistobuildaspeechbasedqueryinterfacetoatextretrievalsystem.Theinter

3、facewillbeindependentoftheunderlyingInformationRetrievalengine.Firststepsinthisprojectwillbepresentedinthispaper.AstudyofthepropertiesoftypicalInformationRetrievalquerieshasshownthatthespeechinterfacemusteffectivelyaddressrequirementslikespeakerindependence,fluentlyspoken

4、speech,anduncontrolledvocabulary.Theserequirementscanonlybeapproximatedwiththecurrentlyavailablespeechrecognitiontechniques.Furthermore,suchrequirementsdemandamultidisciplinaryapproachfromareaslikesignalprocessing,patternrecognition,andlinguistics.Inordertocoordinatethese

5、approachesandtobeopenforfurtherdevelopmentsintheseareas,aspeechrecognitionarchitecturehasbeenintroducedandthiswillalsobepresented.1IntroductionSpeechisthemostnaturalandconvenientwayforhumanstoexchangeinformation.Incontrasttotyping,speechcommunicationrequiresnospecialskill

6、s.Theaimofspeechrecognition(SR)istocreatemachinesthatcanreceivespokeninformationandrespondappropriatelytothatinformation.Suchmachinesapproximatehumanscommunication.Writtenlanguageisderivedfromspeechandislikespeechitselfhumanculture.Today,mosttextdocumentsarecreatedandstor

7、edelectronicallythereforehandwritinghasbeenreplacedbytypingbutbothrequirestheknowledgeofawrittenlanguage.FromtheviewofComputingScientists,writingcanberegardedasaspecialtechniqueforstoringinformation.Ifanidealspeech-to-texttranslatorwouldexistthenawrittenlanguagewouldlosei

8、tsattractivelytosomeextent.Anyway,suchanidealsystemisnotavailableyet.Sothemorephilosophicalquest