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ID:39715946
大小:138.06 KB
页数:15页
时间:2019-07-09
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1、PoliticalSpeechGenerationValentinKassarnigCollegeofInformationandComputerSciencesUniversityofMassachusettsAmherstvkassarnig@umass.eduAbstractInthisreportwepresentasystemthatcangeneratepoliticalspeechesforade-siredpoliticalparty.Furthermore,thesystemallowstospec
2、ifywhetheraspeechshouldholdasupportiveoropposingopinion.Thesystemreliesonacombinationofseveralstate-of-the-artNLPmethodswhicharediscussedinthisreport.Theseincluden-grams,Justeson&KatzPOStagfilter,recurrentneuralnetworks,andlatentDirichletallocation.Sequencesofwo
3、rdsaregeneratedbasedonprobabil-itiesobtainedfromtwounderlyingmodels:Alanguagemodeltakescareofthegrammaticalcorrectnesswhileatopicmodelaimsfortextualconsistency.BothmodelsweretrainedontheConvotedatasetwhichcontainstranscriptsfromUScongressionalfloordebates.Furthe
4、rmore,wepresentamanualandanautomatedapproachtoevaluatethequalityofgeneratedspeeches.Inanexperimentaleval-uationgeneratedspeecheshaveshownveryhighqualityintermsofgrammaticalcorrectnessandsentencetransitions.1IntroductionManypoliticalspeechesshowthesamestructures
5、andsamecharacteristicsregardlessoftheactualtopic.Somephrasesandargumentsappearagainandagainandindicateacertainpoliticalaffiliationoropinion.Wewanttousetheseremarkablepatternstotrainasystemthatgeneratesnewspeeches.Sincetherearemajordifferencesbetweenthepoliticalp
6、artieswewantthesystemtoconsiderthepoliticalaffiliationandtheopinionoftheintendedspeaker.ThegoalistogeneratespeecheswherearXiv:1601.03313v1[cs.CL]13Jan2016noonecantellthedifferencetohand-writtenspeeches.Inthisreportwefirstdiscussrelatedworkswhichdealwithsimilarorr
7、elatedmethods.Thenwedescribeandanalyzethedatasetweuse.Next,wepresentthemethodsweusedtoimplementoursystem.Wealsodescribeinvestigatedmethodsthatwerenotusedinthefinalimplementation.Thenwedescribeaperformedexperimentandhowweevaluatedtheresults.Finally,weconcludeourw
8、orkandgiveanoutlook.Theappendixofthisreportcontainsthegeneratedspeechesfromtheexperiment.2RelatedworkCreatingmodelsforacorpusthatallowretrievingcertaininformationisamajorpar
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