摘要
Non-centernetworkcomputingenvironmentshavesomeuniquecharacteristics,suchasinstability,heterogeneity,autonomy,distributionandopenness,whichbringseriousissuesofsecurityandreliability.Thisarticleproposesabrand-newcredibilityprotectionmechanismforresourcesharingandcollaborationinnon-centernetworkcomputingenvironments.First,thethree-dimensionalhierarchicalclassifiedtopology(3DHCT)isproposed,whichprovidesabasicframeworkforrealizationsoftheidentitycredibility,thebehaviorcredibilityandthecapabilitycredibility.Next,theagenttechnologyisutilizedtoconstructthecredibilityprotectionmodel.Thisarticlealsoproposesanewcomprehensivecredibilityevaluationalgorithmwithsimple,efficient,quantitativeandabletomeettherequirementsofevaluatingbehaviorcredibilityandthecapabilitycredibilityevaluationaswell.TheDempster-Shafertheoryofevidenceandthecombinationruleareusedtoachievetheevaluationofthecapabilitycredibility.Thebehaviorcredibilityisevaluatedwiththecurrentandhistoricalperformanceofnodesforprovidersandconsumerstorealizemoreaccurateprediction.Basedonthenon-centernetworkcomputingsimulationtestplatform,simulationisbeenconductedtotesttheperformanceandvalidityoftheproposedalgorithms.Experimentandanalysisshowthattheproposedalgorithmsaresuitableforlarge-scale,dynamicnetworkcomputingenvironments,andabletomaintainthecredibilityfornetworkswithoutrelyingoncentralnode,makeanon-centernetworkgraduallyevolveintoanorderly,stableandreliablecomputingenvironmentefficiently.
出版日期
2014年03月13日(中国期刊网平台首次上网日期,不代表论文的发表时间)