Behavior and Regularity Analysis of Online Topic Spreading.pdfVIP

JOURNALOFELECTRONICSCIENCEANDTECHNOLOG~VOL．9，NO．2，JUNE2011 l55 BehaviorandRegularityAnalysisof OnlineTopicSpreading Yan—ChapZhang，YunLiu，andZhen—JiangZhang Abstra —The spread ofonlinetopics．which isa differenteventsin hteworld．Usersoftheseapplications complex sOciO—psychOl0gical and information canpublishnadsharevaluableopinionsconveniently,and dissem ination process，can significantly influence the generateplentyofonlinetopics． online pubfic opinion．The beha~or ofonline topics Diflusionofonlinetopics．whichisthespreadofnew spreadingisexplored anditsregularityisattemptedto ideas and opinion throughouta society,is a complex analyze．A generalmodelforthespreadofonlinetopics socio—psychologicalandinformationdisseminationprocess． is introduced， and the differential equation that In recentyears，therehavebeen anumberofstudieson describesthevelociyt ofanonlinetopic’sspreadingis dimlsionproblemsofdifierentonlinesocialnewtork．In 1『1， derived．The velociyt of an online topic’s spread hteauthorscollecteddatafrom alrageSNS，Wealink．and indicates the level of the topic’s development and analyzed severalnewt ork properties， such as density, reflectsitspopulariyt overtime．Theproposedmodel clusteringcoefficients，heterogeneity,andmodularity．They hasbeentheoreticallyanalyzedandempiricallystudied， foundthathtescalegrowth ofhteonlinesocialnetwork respectively．Byanalyzing thedatasetfrom afamous showsSshape．In 2『1，hteauthorsana1)rzedhteinfluenceof Internet ofrum，itisshown thatthe developmentof Twitterusersby employing three measuresthatcaDture spreadvelociytofonHnetopicshassomeeertainfeatures differentperspectives：indegree，rewt eets，andmentions．In andourmodelmatchesthelawsofreality．Thismeth