网络节点重要度的快速评估方法.pdf

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33¡7Vol.33,No.7


2013
7SystemsEngineering|Theory&PracticeJuly,2013



:1000-6788(2013)07-1898-07:TP31;N949:A

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Fastmethodfornodeimportanceevaluationinnetwork

XIAOWei-dong,TANWen-tang,GEBin,LIFang-fang

(KeyLaboratoryofInformationSystemEngineering,NationalUniversityofDefenseTechnology,Changsha410073,China)
AbstractNodeimportanceevaluationisoneoftheimportantnetworkanalysesincomplexnetworkand
datamining.Howevermostoftheexistingmethodsarecomplexandslowforlargenetworks.Inthis
paper,apracticalmethodbasedonresistivenetworkforfastnodeimportanceevaluationwasproposed.
Nodeimportancewasevaluatedbasedonitsinfluenceontheaveragepowerdissipationinaresistance
network,anodewasimportantbecauseitreducedtheaverageenergydissipationofthenetwork.The
timecomplexityofthealgorithmisO(n3)intheworstsituation,andisO(n)inthedistributedcomputing
environment.Experimentalresultstestifythatthealgorithmisefficientandeffective.
Keywordsnetwork;nodeimportance;resistivenetwork;powerdissipation

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