資源描述：
《Good Friends， Bad News Affect and Virality in Twitter.pdf》由會員上傳分享，免費在線閱讀，更多相關內(nèi)容在學術論文-天天文庫。
1、GoodFriends,BadNewsA?ectandViralityinTwitterLarsKaiHansen1,AdamArvidsson2,Finn?ArupNielsen1,ElanorColleoni3andMichaelEtter31DTUInformatics,TechnicalUniversityofDenmark,DK-2800Lyngby,Denmark,Email:lkh,fn@imm.dtu.dk2UniversityofMilan,viaConservatorioMilan,Italy,Email:adam.arvidsson@unimi
2、.it3CopenhagenBusinessSchool,DK-2000Frederiksberg,Email:elc.ikl,me.ikl@cbs.dkJanuary4,2011arXiv:1101.0510v1[cs.SI]3Jan20111AbstractThelinkbetweena?ect,de?nedasthecapacityforsentimentalarousalonthepartofamessage,andvirality,de?nedastheprobabilitythatitbesentalong,isofsigni?canttheoretic
3、alandpracticalimportance,e.g.forviralmarketing.Aquanti-tativestudyofemailingofarticlesfromtheNYTimes(BergerandMilkman,2010)?ndsastronglinkbetweenpositivea?ectandvirality,and,basedonpsychologicaltheoriesitisconcludedthatthisrelationisuniversallyvalid.Theconclusionap-pearstobeincontrastw
4、ithclassictheoryofdi?usioninnewsmedia(GaltungandRuge,1965)emphasizingnegativea?ectaspromotingpropagation.Inthispaperweexploretheapparentparadoxinaquantitativeanalysisofinformationdi?usiononTwitter.Twitterisinterestinginthiscontextasithasbeenshowntopresentboththecharacteristicssocialand
5、newsmedia(Kwaketal.,2010).ThebasicmeasureofviralityinTwitteristheprobabilityofretweet.Twitterisdi?erentfromemailinthatretweetingdoesnotdependonpre-existingsocialrelations,butoftenoccuramongstrangers,thusinthisrespectTwittermaybemoresimilartotraditionalnewsmedia.Wethereforehypothesizeth
6、atnegativenewscontentismorelikelytoberetweeted,whilefornon-newstweetspositivesentimentssupportvirality.Totestthehypothesisweanalyzethreecorpora:AcompletesampleoftweetsabouttheCOP15climatesummit,arandomsampleoftweets,andageneraltextcorpusincludingnews.Thelatterallowsustotrainaclassi?ert
7、hatcandistinguishtweetsthatcarrynewsandnon-newsinformation.Wepresentevidencethatnegativesen-timentenhancesviralityinthenewssegment,butnotinthenon-newssegment.Weconcludethattherelationbetweena?ectandviralityismorecomplexthanexpectedbasedonthe?ndingsofBergerandMilkman(2010),inshort’ify
