42_Vector-Based Spoken Language Classification

《42_Vector-Based Spoken Language Classification》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、82542.Vector-BasedSpokenLanguageClassificationVector-BasedH.Li,B.Ma,C.-H.Lee42.1VectorSpaceCharacterization................826Thischapterpresentsavectorspacecharac-terization(VSC)approachtoautomaticspoken42.2UnitSelectionandModeling..................827languageclas

2、sification.Itisassumedthatthe42.2.1AugmentedPhonemeInventoryspaceofallspokenutterancescanberepresented(API)..........................................828byauniversalsetoffundamentalacousticunits42.2.2AcousticSegmentModel(ASM)......828commontoalllanguages.Weaddressre

3、searchis-42.2.3ComparisonofUnitSelection........829suesrelatedtodefiningthesetoffundamental42.3Front-End:VoiceTokenizationacousticunits,modelingtheseunits,transcrib-andSpokenDocumentVectorization......830ingspeechutteranceswiththeseunitmodelsanddesigningvector-base

4、ddecisionrulesforspoken42.4Back-End:Vector-BasedClassifierDesign83142.4.1EnsembleClassifierDesign............832languageclassification.TheproposedVSCap-42.4.2EnsembleDecisionStrategy..........833proachisevaluatedonthe1996and2003National42.4.3GeneralizedVSC-BasedInsti

5、tuteofStandardsandTechnology(NIST)lan-PartGClassification..............................833guagerecognitionevaluationtasks.ItisshownthattheVSCframeworkiscapableofincorpo-42.5LanguageClassificationExperimentsratinganycombinationofexistingvector-basedandDiscussion.....

6、................................83542featurerepresentationsandclassifierdesigns.42.5.1ExperimentalSetup.....................835WewilldemonstratethattheVSC-basedclassi-42.5.2LanguageIdentification...............836ficationsystemsachievecompetitivelylowerror42.5.3Langu

7、ageVerification..................83742.5.4OverallPerformanceComparison...838ratesforbothspokenlanguageidentificationandverification.42.6Summary.............................................838Thechapterisorganizedasfollows.InSect.42.1,References.......................

8、...........................839weintroducetheconceptofvectorspacechar-acterizationofspokenutteranceandestablishthenotionofacousticletter,acousticwordandI