“隨機(jī)”與“偏好”選擇機(jī)制并存的加權(quán)網(wǎng)絡(luò)的拓?fù)涮匦约捌涫芤u研究.pdf

1、華中科技大學(xué)碩士學(xué)位論文“隨機(jī)”與“偏好”選擇機(jī)制并存的加權(quán)網(wǎng)絡(luò)的拓?fù)涮匦约捌涫芤u研究姓名：劉滿元申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：凝聚態(tài)物理指導(dǎo)教師：于曉凌20080607華中科技大學(xué)碩士學(xué)位論文華中科技大學(xué)碩士學(xué)位論文AbstractInrecentyearsthestudyofcomplexwkattractagrowingnumberofscholarsinterestfromdifferentdisciplinescomplexwkha

2、sbeenwitnessedasthenewhotspotindomesticinternationalacademiccommunity.Thescientistshaveexpedlotsofwksontheevidencemodelingdynamicsdynamicsinterplaywiththewkstructureetal.Astherealitysystemiscomplexsohowtoreproducetheevol

3、utionofwksinareasonablewayhowtoexpletheregularityoftopologystructureinterplaywithwkdynamicshowthewksevolutionaffectwksdynamicsprocesshavebecomeoneoftheceissuesincomplexwkstudy.Firstlythispaperbrieflyintroducethecomplexwk

4、definitionresearchbackgroundoverviewtopologyfeaturesseveralcommonwkevolutionmodels.Secondlyconsideringthat“rom“attachment“preferential“attachmentbeeninthemajityofwksevolutionweconstructaweightedwkmodelwithin“rom““prefere

5、ntial“attachmentmechanism.Throughsettingthreeparametersα、β、γtocontroltheevolutionofwkstheparameterαcontroltherateofthenewnodesinternaledgegrowthspeedtheparameterβcontroltheprobabilityofnodetonodeconnectionbytheweightpref

6、erentialattachmenttheparameterγcontroltheprobabilityofthetwooldnodesconnectionsbytheweightpreferentialattachment.Usingnumericalsimulationmethodswestudiedthetopologypropertyoftheweightedwkmodelwefocusedonthethreeparameter

7、sα、β、γimpactonthewk’stopology.Finallywestudiedtheweightedwkmodelwhichbeenromattackedintentionattackedwefocusontheinfluenceofthestrengthofintentionattacktheprobabilityofwksevolution“preferential”attachmenttothewksconnecti