网络节点资源要素的联合分布及风险重现期的估算

Joint Distribution of Network Node Resource Elements and Risk Return Period

针对网络行为的过量峰值和网络攻击都会带来网络资源风险的问题,论文以节点设备的内存使用率、网络流量、CPU利用率的时间序列为研究对象,采取Copula函数对网络节点资源的三维联合分布进行了构造,并引进资源重现期对网络节点提供了一种风险预警方式。实验结果表明,Copula函数可以有效地对网络节点资源的三维联合分布进行构造,重现期也可以有效地对网络节点资源进行风险预警。

Aiming at solving the problem that the network resource risk that excessive peak of network behavior and network attacks bring.The paper takes the time series of node device memory usage,network traffic,CPU utilization as the research objects.Copula function is used to construct the three dimensional joint distribution of network node resources and introduce the risk return period to provide a risk early warning for network nodes.The experimental results show that the Copula function can effectively construct three dimensional joint distribution of network node resources,and return period can also effectively provide risk early warning for network node resources.