[dataguru.cn]A Sentimental Education Sentiment Analysis Using Subjectivity Summarization Based on Minimum Cuts

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1、ASentimentalEducation:SentimentAnalysisUsingSubjectivitySummarizationBasedonMinimumCutsBoPangandLillianLeeDepartmentofComputerScienceCornellUniversityIthaca,NY14853-7501pabo,llee
@cs.cornell.eduAbstractter;andthen(2)applyastandardmachine-learningclassiertotheresultingextract.This

2、canpreventSentimentanalysisseekstoidentifytheview-point(s)underlyingatextspan;anexampleappli-thepolarityclassierfromconsideringirrelevantorcationisclassifyingamoviereviewas“thumbsup”evenpotentiallymisleadingtext:forexample,al-or“thumbsdown”.Todeterminethissentimentpo-thoughthesent

3、ence“Theprotagonisttriestopro-larity,weproposeanovelmachine-learningmethodtecthergoodname”containstheword“good”,ittellsusnothingabouttheauthor'sopinionandinthatappliestext-categorizationtechniquestojustthesubjectiveportionsofthedocument.Extractingfactcouldwellbeembeddedinanegativem

4、ovietheseportionscanbeimplementedusingefcientreview.Also,asmentionedabove,subjectivityex-techniquesforndingminimumcutsingraphs;thistractscanbeprovidedtousersasasummaryofthegreatlyfacilitatesincorporationofcross-sentencesentiment-orientedcontentofthedocument.contextualconstraints.

5、Ourresultsshowthatthesubjectivityextractswecreateaccuratelyrepresentthesentimentin-Publicationinfo:ProceedingsoftheACL,2004.formationoftheoriginatingdocumentsinamuchmorecompactform:dependingonchoiceofdown-1Introductionstreampolarityclassier,wecanachievehighlysta-Thecomputationaltr

6、eatmentofopinion,sentiment,tisticallysignicantimprovement(from82.8%toandsubjectivityhasrecentlyattractedagreatdeal86.4%)ormaintainthesamelevelofperformanceofattention(seereferences),inpartbecauseofitsforthepolarityclassicationtaskwhileretainingpotentialapplications.Forinstance,in

7、formation-only60%ofthereviews'words.Also,weex-extractionandquestion-answeringsystemscouldploreextractionmethodsbasedonaminimumcutagstatementsandqueriesregardingopinionsformulation,whichprovidesanefcient,intuitive,ratherthanfacts(Cardieetal.,2003).Also,itandeffectivemeansforintegr

8、atinginter-sentence-haspro