Sentiment AnalysisBollenJ,MaoH,ZengX.Twittermoodpredictsthestockmarket[J].Journal of computational science,2011, 2(1): 1-8.bankCALMpredictsDowJonesWwOS-ZVIre3 days laterSauorMOAeWWMWAug09Aug29Sep18Oct08Oct28
Sentiment Analysis D o w J o n e s C A L M • CALM predicts Dow Jones 3 days later Bollen J, Mao H, Zeng X. Twitter mood predicts the stock market[J]. Journal of computational science, 2011, 2(1): 1-8
Sentiment AnalysisBollenJ,MaoH,ZengX.Twittermoodpredictsthestockmarket[J].Journal of computational science,2011, 2(1): 1-8.oankCALMpredictsDowJonesWw00S3 days laterVIrsaoro eHedge funds :WDerwent CapitalMarketshavemadeprofits in the firstmonthof trading by usingtwitterWMWAug09Aug29Sep18Oct08Oct28
Sentiment Analysis D o w J o n e s C A L M • CALM predicts Dow Jones 3 days later • Hedge funds : Derwent Capital Markets have made profits in the first month of trading by using twitter Bollen J, Mao H, Zeng X. Twitter mood predicts the stock market[J]. Journal of computational science, 2011, 2(1): 1-8
Sentiment AnalysisTarget Sentiment on TwitterTypeinawordandwe'll highlightthegoodandthebad"united airlines'Search Savethis searchTwiXer SentimentAppSentimentanalysis for"united airlines"AlecGo,RichaBhayaniSentimentbyPercentSentimentby CountLeiHuang.2009.TwiXerNegative (68%)SentimentClassificationusing DistantSupervisionPositive (11)Negative:(23)Positive (32%)20.25301015jliacobson:OMG...Could@Unitedairlineshaveworsecustomerservice?W8gnow15minutPosted2hoursaas12345clumsy6789:IhateUnitedAirlinesCeilinglll Fukn impossibletogetmyconduitin thisPosted2hoursagsEMLandPRGbelgiu:EML/PRGflywithQ8unitedairlinesand24seven toan exoticdestinatiorPosted 2 hosurs agsCountAdam:FANTASTICcustomerservicefromUnited Airlines atXNA today.Is tweetmorePosted 4 hours agunderstand users'preferencesforthe company and productsguidetheimprovementofproductsandservices,findouttheadvantages anddisadvantagesof competitors
Sentiment Analysis l Target Sentiment on Twitter • TwiXer Sentiment App • Alec Go, Richa Bhayani, Lei Huang. 2009. TwiXer Sentiment Classification using Distant Supervision l understand users' preferences for the company and products, l guide the improvement of products and services, l find out the advantages and disadvantages of competitors
Sentiment AnalysisSentimentanalysishas many other namesOpinionextractionOpinionminingSentiment miningSubjectivityanalysis交道大学
Sentiment Analysis l Sentiment analysis has many other names l Opinion extraction l Opinion mining l Sentiment mining l Subjectivity analysis
SentimentAnalysisWhysentimentanalysis?Movie:isthisreviewpositive ornegative?Products:what do people think about the new iPhone?Publicsentiment:how is consumer confidence?Is despair increasing?Politics : what do people think about this candidate or issue?Prediction:predictelectionoutcomesormarkettrends fromsentiment交道大学
Sentiment Analysis l Why sentiment analysis? l Movie : is this review positive or negative? l Products : what do people think about the new iPhone? l Public sentiment : how is consumer confidence? Is despair increasing? l Politics : what do people think about this candidate or issue? l Prediction : predict election outcomes or market trends from sentiment