基于微博舆情事件的节点地理扩散——以凤凰古城收费事件为例

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1、AbstractFromtheAngleofgeography，thespreadofinformationreferstoinformationinacertainperiodoftimefromonelocationtootherlocationonthetransferprocess．ThisstudybasedonApril10，2013”Theancientcityofphoenixchargeevent’happenedtoanalyzethespreadofpublicopinioninmicroblog，mainlyfromtheeventdiffus

2、ionmechanism，diffusionpath，geographicalcharacteristicsanddiffusionmodelandSOonfouraspectstodiscussthemicrobloggingpublicopinioneventsingeographicalspatialdiffusionphenomenon．Thestudyfoundthat：(1)Publicopinioneventsasawholetakestheformbythecoretotheedgeofthelevelofdiffusion．Publicopinion

3、eventsinmicroblogdiffusion：abidebythenodesinthemodel，therighttohaveacenternode，namelyinformationpublisherforthefirsttime，thenthenodeisconnectedtothebridge，andatlastthelongtailnode，thespreadofpublicopinioneventsinmicrobloginfluencedegreedependsonbridgenodesize．(2)Publicopinioneventsinpre

4、sentstagediffusiontimeandpresentcharacteristics—shapedcurve．Eventintheancientcityofphoenixchargingtimecanbedividedintopreclinicalstage，evolutionperiod，outbreak，spreadandfadingperiodfivestagesofdiffusion．Inaddition，intheancientcityofphoenixinthediffusionprocessofchargeaccident，proliferat

5、orsshowedincreasedformacertaincumulativenumber，roughlythepresents-shapeddiffusion，accordswiththegenerallawofdiffusionofinnovation．(3)Publicopinionevents，thereexistsomedifferencesingeographicalspatialdiffusion．Ontheonehand，thedifferentperiodofgeographicalspatialdiffusionhascertaindiffere

6、nces，mainlyspreadinthegeographicspacetimesectionandtimecurveisconsistent．Ontheotherhand，isadifferenttypeofgeographicalspreadexistdifferencesbetweenmicroblogusers．Certificationmicroblogusers，thisbloggerweiboinfluenceareverybig，depthandbreadthofinformationdiffusionisthebiggestofa11．Itsapp

7、ealisnotenoughstrongblogger，thereisnowaytogetthestrengthproliferatorshelpfanbase，depthandbreadthofinformationdiffusionareVlow．(4)Theproximityeffectonthespreadofpublicopinionspacedimensions．Theancientcityofphoenixforeventsintheprocessofspatialdiffusionpresentsacertaindegreeofpro