面向微博的新词发现和话题检测技术研究

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1、万方数据ABSTRACTWiththedeVelopmentofintemettechnologyandthepopularizationofmobiletemlinalservices，micro-bloggetsrapiddeVelopmentandgetsthefavoroftheindiViduals，businessesandgoVen瑚ent，whichisanewtypeofsocialmedia．Nowadays，manynewsandhottopicsarepublishedthrou曲micro．blogandspread．Howtodisc

2、oVertheimportantinfomlationf．romala唱enumberofmicro．blogsforindiViduals，businesses，aIldeVenthegoVemmenthasimportalltsignificance．Thispaperstudiesthenewworddetectionandtopicdetectiontechnologyformicro-blog．Andthemainresearchcontentisasfollows．(1)Researchonmicro_blogdatacollection．Thisp

3、aperintroducestheprincipleofthetraditionaldatacollectionmethodandthedatacollectionmethodbasedonthemicro-blogAPI．AnalysisoftheadvantagesanddisadVantagesofthetwomethodsintennsofdatacollectionmicro-blog．Intheend，combiningthestmcturefeatureofmicro-blogsites，thispaperproposesadatacollecti

4、onmethod，whichissuitableformicro-blog．Alsoitcollects3millionmicro-blogdatabythemethod，a11dproVidesarichresourceofco叩usformicro-blogtopicdetection．(2)Researchonnewworddetectionformicro-blog．Thispaperintroducesthecurrentresearchathomeandabroadfornewworddetection．Alsothispaperintroduces

5、thecommonstatisticsandalgorithminthefieldofnewworddetection，andanalysesthe皿nciplea11dadVantagesanddisadVantagesofallkindsofmethods．Intheend，thispaperdetectsthenewwordsbycalculatingtheinnercombinationdegreeandtheboundaryf-reedomdegreeofword．WepalrticipatedCOAE2014eValuationbythismetho

6、d，andachieVedgoodresults．(3)Researchonmicro-blogtopicdetection。Thispaperintroducesthecu”entresearchathomeandabroadformicro．blogtopicdetection．Alsothispaperintroducesthecommonclusteringandthesimilaritycalculationmethodsinthefieldofmicro．blogtopicdetection，andintroducestheprincipleofLD

7、Asuboectmodel．Intheend，thispaperproposesmicro-blogtopicdetectionbaSedonLDAmodelandhierarchicalclustering．Firstly，thismethodmodelmicro-blogco印uswithLDAmodelandextractmicro_blogsemaJlticinfo肌ation；SecondIy，combiningwiththeschedulingofmicr0-blog，improVesthetraditionalalgorithmofSingle-P

8、ass．Theimpro