计算机科学 ›› 2020, Vol. 47 ›› Issue (9): 265-269.doi: 10.11896/jsjkx.190700069
杨超, 刘志
YANG Chao, LIU Zhi
摘要： 研究复杂网络的级联故障对网络内部动力学行为的影响,对维护网络安全、保障网络稳定具有极高的应用价值。从网络级联角度分析,对于完全非对称的简单排它过程模型中系统流量变化的问题,采用基于完全非对称的简单排它过程的网络模型进行级联故障研究。通过研究网络最大强连通子图尺寸、网络强连通子图个数以及网络流量之间的关系得出,网络最大强连通子图尺寸与流量呈正相关,网络流量达到最低阈值的决定性因素是网络强连通子图个数。在不同平均度的网络中进行仿真实验,结果表明随着连边去除率的增加,网络平均度越大,网络流量的下降率越低;取不同粒子密度再对网络进行仿真实验,结果表明在低密度区间与高密度区间上,平均密度的变化对流量下降率的影响较小,在中间密度区间上流量下降率几乎不变。
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