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1、哈尔滨工业大学工程硕士学位论文AbstractRecently,microbloghasarapiddevelopment.Usersinmicroblognotonlycanmakefriends,chatwithothersandpublishatweet,butalsocaninitiateatopic,commentothertopics.Itisverymeaningfultoanalyzeandminemicroblogtopic.Existingrelatedworksaboutminingmicroblogtopicsmostlyarebasedontex
2、tanalysis.Thetextinmicroblogisalwaysshorttext,andithasthecharacteristicsofsparsedataandlotsofnoise.Itbringsdifficultiesforanalysisofmicroblogtopic.Microblogisasocialmediawhichisbasedonrelationship.Userswhohavecloserelationalwaysfocusonsimilartopics.Theresultsarenotgoodenoughwhenweminemicr
3、oblogbaseontextanalysispurely.Sowestartfromtherelationbetweenusers,andweproposeamodelofrelationnetworktominemicrobloghottopics.Inthispaper,weusethismodelofrelationnetworktodevelopamicroblogtopicminingsystembasedonrelationnetwork,andweachievecertainresults.Thearticlehasproposedamethodofpre
4、sentingmicroblogtopicbasedonrelationnetwork.Throughanalysisofmicroblogtopic,wefoundthatusershavestatesintheprocessofdiffusionofmicroblogtopicbetweenthem.Andthestatesofuserswillchangeinthisprocess.Users’operationsinmicroblogcausechangeofusers’states.Inmicroblog,users’behaviorsincludepostin
5、gatweet,commentingatweet,forwardingatweetand@otherusers.Theusers’operationsalsogeneraterelationbetweenusers.Weproposemethodofpresentingmicroblogtopicbasedonrelationnetworkbecauseofthis.Inthemicroblogtopicrelationnetwork,thenodesrepresentusersandtheedgesrepresenttherelationbetweenusersinmi
6、croblogtopic.Afterconstructingthetopicrelationnetwork,wepre-analyzetheconstructingtopicrelationnetworks,includingthebetweennesscentralitydistribution,closenesscentralitydistribution,networkclusteringcoefficientandsoon.Thearticleproposedamethodbasedonmicroblogtopicrelationnetwork.Weminedth
7、erelationinrealhottopicsfromtheSinaWeibo.AllfourrealhottopicsinSinaWeiboare"Beijingcollegeentranceexaminationreform","inter-provincialmedicalreimbursement","pensions"and"extendingthepaymentperiod".Intheexperimentofminingmicroblogtopic,wealsousethecurrentmethodbasedo
