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ID:34591587
大小:8.03 MB
页数:47页
时间:2019-03-08
《基于主题模型和社区发现的微博热点事件检测研究》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、西南大学硕士学位论文ReSearCh0nH0tEVentDeteCtioninMicro—blogBasedonTopicModelandCommuni钾DiscoveryC0mmUmWUlSCOVeryMajor:ComputerSof.twareTheoryAuthor:Zhi妒ngZhangSuperVisor:AssociateProI.essorZhixingHuangAbStraCtWi廿1simple锄de伍ci锄ti11f.onnationgen耐ing锄dpropagationmech缸i锄,m
2、icro.bloggingsen,ice谢lichisaIl锄e唱ingsocialne咐orkservicehaSbe∞uSedeve聊妇erejIl廿IeeraofW曲2.O.Comparedto仃aditionalmedia,micro_blogmoretiIIlely肌de伍cientonmenewsbroadcastil培锄dspread啦.Therefore,researchoneVentdetectioni11micro-blogbecomesahottopiciIlrecentyears.Neve
3、rtheless,someSpeci矗cchamctcristicsofmicm.blogMngchallengestotasksofmiIliIlgeVemsmmicro-blog.Firstly,micro-blogdatas吮amcont2Lmsla鸦e锄ountsofValueless嬲dme锄iIlglessmessages谢lichisalsocallednoisemessages,amajorchall锄ge蠡IcingeVentdetection缸髓themicro-blogdatas仃e锄the
4、reforeishowtos印踟temessagesrefertoreal-worldeVems舶m1arge锄ountsofnoisemessages.Secondly,0nemicro.blogmessage0n妙havenomorem锄140chamcterS,thesparSi吼thela唱en咖曲erofspelliIlgand伊aIrlnlaticalenDrS,锄dtheuSeofmixedlallgu楚psinmicro-blogmessages,a11mesemakeⅡle的ditionalte
5、Xt锄alysistechIliqueslesssuitableforeventdetectioniIlmicro_blog.ThispaperstudiesreLwanttecll芏lologiesabouteventdetectioniIlmicro-blogathomeandabmadfirst。锄dthellresearch锄de)(t即sionofstatic锄ddyn锄iceventdetectioni11micro.blogcaITiedaccordillgtoⅡ1epriorartdeficien
6、cies.h1temsofstaticmicro-blogeventdetection,tllispaperproposesat嘲cl髂si6cationmethodwhichbasedontopicmodel锄dBayesiaIlm锄odtodetecteventmicr0-blogsillstaticmicro.blogdata,whichmappingastaticmicr0.blogmessageasakiIldoftopicspacer印resentationandmiIlillgrelationshi
7、psb咖eentopicsandcateg嘶esofmessages,meIlmecategoryofamicro-blogmessagedetemilledbywhemermetopics’categ嘶esoft11ismessageiseventornot.Intemlsofdyn咖iceV锄tdetectionillmicro-blog,misp印erpresentsam甜lodwhichbasedoncommull时discoveqa11dkemelmetllodtodetecteVemsiIld),ll
8、锄icmicro-blogdatas仃e锄,tllismetIlodfirstselectseVemwordSaccordingtoadyIl锄iceV%twordsIl西南大学硕士学位论文selectionalg嘶tllmwhichpmposedby廿1ispaperalso;menmakeasem柚ticgraphf-ormicro.blogdataiileacht妇
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