《深度自然语言处理》课程教学课件（Natural language processing with deep learning）12 sentiment analysis

西安文通大学Natural language processingwithdeeplearningXIAN HAOTONGUNIVERSITYSentiment Analysis交通大学ChenLicli@xjtu.edu.cn2023

Chen Li cli@xjtu.edu.cn 2023 Sentiment Analysis Natural language processing with deep learning

Outlines1. What is Sentiment Analysis?2.ABaseline Algorithm3. Sentiment Lexicons4. Learning Sentiment Lexicons5.OtherSentimentTasks

Outlines 1. What is Sentiment Analysis? 2. A Baseline Algorithm 3. Sentiment Lexicons 4. Learning Sentiment Lexicons 5. Other Sentiment Tasks

Outlines1.What is SentimentAnalysis?2. ABaseline Algorithm3. Sentiment Lexicons4. Learning Sentiment Lexicons5.OtherSentimentTasks

Outlines 1. What is Sentiment Analysis? 2. A Baseline Algorithm 3. Sentiment Lexicons 4. Learning Sentiment Lexicons 5. Other Sentiment Tasks

SentimentAnalysisPositive ornegativemovie review?UnbelievablydisappointingFull ofzanycharacters and richlyapplied satire, and some greatplot twistsThisisthegreatestscrewball comedyeverfilmedIt was pathetic.The worst part about it was the boxing scenes.交道大学

Sentiment Analysis l Positive or negative movie review? l Unbelievably disappointing l Full of zany characters and richly applied satire, and some great plot twists l This is the greatest screwball comedy ever filmed l It was pathetic. The worst part about it was the boxing scenes

Sentiment AnalysisGoogleProductSearchHPOfficejet65o0APluse-All-in-OneColorInk-jet-Fax/copier/printer/scanner$89online,$100nearby★★★★★377reviewsSeptember2010-Printer-HP-Inkjet-Office-Copier-Color-Scanner-Fax-250sheReviewsSummary-Basedon377reviews1star234stars5starsWhatpeople are saying"Thiswasveryeasytosetuptofourcomputers."ease ofuse"Appreciategoodqualityatafairprice."value"Overall pretty easy setup."setup"IDo likehonesttechsupportpeople."customerservice"PrettyPaperweight."size"Photos were fair on the high quality mode."mode"Full color prints came out withgreatquality.colors

Sentiment Analysis l Google Product Search • a

Sentiment AnalysisBing ShoppingHPOfficejet6500AE710NMultifunctionPrinterProductsummary Find bestprice Customerreviews Specifications Related items$121.53-$242.39(14stores)CompareMostmentioned(144)ShowreviewsbysourceAveragerating★★★*Performance(57)(55)BestBuy(140)★*★★★EaseofUse(43)CNET(5)(54)★★★★★(39)PrintSpeedAmazon.com(3)(10)★★★★★(31)Connectivity(6)★★★★宾More(23)★★实★★(0)家★实★★

Sentiment Analysis l Bing Shopping • a

SentimentAnalysisTwittersentimentversusGallupPoll of ConsumerConfidencewindow=15,r=0.80423088W24O0GallupPoll909TwitterSentiment8888888.AOMining users' emotions in twitter can be found to be highly consistent with traditional survey,votingandothermethods(corelation>80%)

Sentiment Analysis l Twitter sentiment versus Gallup Poll of Consumer Confidence Mining users' emotions in twitter can be found to be highly consistent with traditional survey, voting and other methods (corelation>80%)

SentimentAnalysisTwittersentimentversusGallupPoll of ConsumerConfidencewindow=15.r=0.804e2Sept.15.2008:088MLehmancollapse,AIGbailoutFeb2009Stockmarket200bottomsoutbeqinsrecovery5GallupPoll90TwitterSentiment888888888889990093OOOOCC090艺6Mining users' emotions in twitter can be found to be highly consistent with traditional survey,votingandothermethods(corelation>80%)

Sentiment Analysis l Twitter sentiment versus Gallup Poll of Consumer Confidence Mining users' emotions in twitter can be found to be highly consistent with traditional survey, voting and other methods (corelation>80%)

Sentiment AnalysisTwitter sentiment:Thewhole socialemotionOpinionFinderdaxcaltor1.75Thanksgiving1.25CALpre electionanxietALERTSUREelectionresultsVITALpre!cuorKINDAHAPPYThanksgivinghappinessOct22Oct29Nov05Nov12Nov19Nov26

Sentiment Analysis l Twitter sentiment: The whole social emotion

Sentiment AnalysisBollenJ,MaoH,ZengX.Twittermoodpredictsthestockmarket[J].Journal of computational science,2011, 2(1): 1-8.saoro worWMWeAug09Aug29Sep18Oct08Oct28

Sentiment Analysis D o w J o n e s C A L M Bollen J, Mao H, Zeng X. Twitter mood predicts the stock market[J]. Journal of computational science, 2011, 2(1): 1-8