摘要
利用BBV加权网络的演化机制和BA模型的线性择优连接机制,新节点进入网络时的入边和出边服从二项分布,建立了子网络具有流量补偿的有向加权供应链网络模型。利用泊松过程理论分析了网络的出入强度分布,结果表明,有向加权供应链网络的稳态平均入强度分布和稳态平均出强度分布服从幂律指数在[1,3]之间的幂律分布。对有向加权供应链网络模型进行仿真研究,仿真结果与理论预测相一致,符合供应链网络的幂律特性。
The evolution mechanism of BBV weighted network and the linear preferential attachment of BA model were used to build a directed-weighted supply chain network model,including the nodes added,the compensation mechanism and the in-out links in accord with Bernoulli distribution in the sub-network.The theory of Poisson process was utilized to analyze the in-out strength distribution.The result shows that the node and network’s in-s仕ength and out-s仕en神of supply chain nelwo^^power law distribution with degree exponent y,co of[1,3].A simulation was carried out on the supply chain model,and its results are in line with the theoretical prediction results and consistent with the power law distribution of supply chain network.
作者
胡跃群
何红英
郭进利
张宇
HU Yuequn;HE Hongying;GUO Jinli;ZHANG Yu(Business School,University of Shanghai for Science and Technology,Shanghai 200093,China;Xi'an Employees University,Xi'art 710068,China;College of Science,University of Shanghai for Science and Technology,Shanghai 200093,China)
出处
《上海理工大学学报》
CAS
北大核心
2018年第4期351-357,共7页
Journal of University of Shanghai For Science and Technology
基金
国家自然科学基金资助项目(71571119)
关键词
BBV模型
BA模型
供应链
有向加权网络
强度分布
BBV model
BA model
supply chain
directed-weighted network
strength distribution
