A Taste of Sentiment Analysis

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1、ATasteofSentimentAnalysisRobZinkovMay26th,2011RobZinkov()ATasteofSentimentAnalysisMay26th,20111/105Outline1Introduction2BasicsofNLP3BasicTechniquesforSentimentAnalysis4AdvancedTechniquesforSentimentAnalysis5FurtherQuestionsRobZinkov()ATasteofSentimentAnalysisMay26th,20112/105IntroductionWhatisSe

2、ntimentAnalysis?SentimentAnalysisisasubeldofComputationalLinguisticsconcernedwithextractingemotionsfromtextRobZinkov()ATasteofSentimentAnalysisMay26th,20113/105IntroductionApplicationsRobZinkov()ATasteofSentimentAnalysisMay26th,20114/105IntroductionApplications-PoliticalBlogsRobZinkov()ATasteof

3、SentimentAnalysisMay26th,20115/105IntroductionApplications-PoliticalBlogsTrackingopinionsonissuesTrackingwhichissuesareheldemotionallyTrackingsubjectivityofbloggersRobZinkov()ATasteofSentimentAnalysisMay26th,20116/105IntroductionPoliticalBlogs-ChallengesIdentifyingopinionholderAssociatingop

4、inionswithissueIdentifyingpublicguresandlegislationRobZinkov()ATasteofSentimentAnalysisMay26th,20117/105IntroductionApplications-ProductReviewsRobZinkov()ATasteofSentimentAnalysisMay26th,20118/105IntroductionProductReviews-ChallengesIdentifyingaspectsofproductAssociatingopinionswithaspectsof

5、productIdentifyingFakeReviewsNocanonicalformRobZinkov()ATasteofSentimentAnalysisMay26th,20119/105IntroductionApplications-FinancialNewsRobZinkov()ATasteofSentimentAnalysisMay26th,201110/105IntroductionFinancialNews-ChallengesIdentifyingtheequityinthearticle(thinkcommodities)Associatingentiti

6、eswithmarketsymbolsSpecializednancialtermswithdistinctsentimentArticlesrarelyonlyaboutoneequityRobZinkov()ATasteofSentimentAnalysisMay26th,201111/105IntroductionApplications-BrandTrackingRobZinkov()ATasteofSentimentAnalysisMay26th,201112/105IntroductionBrandTracking-ChallengesTextlikelytobeu

7、nstructuredIdentifyingBrandIdentifyingOpinionHolder/DemographicRobZinkov()ATasteofSentimentAnalysisMay26th,201113/105IntroductionGoalsGiveabroadoverviewoftheeldShowcasethebestcurrenttoolsandapproachesRobZinkov()ATasteof