南华大学学报(自然科学版)
南華大學學報(自然科學版)
남화대학학보(자연과학판)
JOURNAL OF NANHUA UNIVERSITY(SCIENCE AND TECHNOLOGY)
2013年
3期
51-55
,共5页
级联失效%分布式流%复杂网络%鲁棒性
級聯失效%分佈式流%複雜網絡%魯棒性
급련실효%분포식류%복잡망락%로봉성
cascading failures%distributed flow%complex networks%robustness
考虑现实网络中流的分布式传输方式和边的负载-容量关系,提出了一个带有可调权重参数的边级联失效模型。依据新的度量网络鲁棒性指标,探讨了两种典型复杂网络由蓄意边攻击而引发的级联失效行为。仿真结果表明,存在最优参数值使得网络达到最强抵制边级联失效的鲁棒性,能够显著降低灾害动力学发生的可能性。而且,网络的拓扑结构和平均度均对网络鲁棒性产生了影响。
攷慮現實網絡中流的分佈式傳輸方式和邊的負載-容量關繫,提齣瞭一箇帶有可調權重參數的邊級聯失效模型。依據新的度量網絡魯棒性指標,探討瞭兩種典型複雜網絡由蓄意邊攻擊而引髮的級聯失效行為。倣真結果錶明,存在最優參數值使得網絡達到最彊牴製邊級聯失效的魯棒性,能夠顯著降低災害動力學髮生的可能性。而且,網絡的拓撲結構和平均度均對網絡魯棒性產生瞭影響。
고필현실망락중류적분포식전수방식화변적부재-용량관계,제출료일개대유가조권중삼수적변급련실효모형。의거신적도량망락로봉성지표,탐토료량충전형복잡망락유축의변공격이인발적급련실효행위。방진결과표명,존재최우삼수치사득망락체도최강저제변급련실효적로봉성,능구현저강저재해동역학발생적가능성。이차,망락적탁복결구화평균도균대망락로봉성산생료영향。
Considering distributed transmission mode of flow and load-capacity relation for edges in real networks,an edge cascading failures model with a tunable weight parameter is proposed. According to new measures to the robustness of a network, cascading failures triggered by intentional edge attacks on two typical complex networks are investigated. The simulation results show the existence of optimal parameter value corresponding to the stron-gest robustness achievement for the networks against edge cascading failures,reducing sig-nificantly the likelihood of the occurrence of catastrophic dynamics. Furthermore,topologi-cal structure and average degree of the networks all have effect on the network robustness.