Structure Optimization Of Logistics Networks Based On Influence Propagation

Regional economic integration leads to the development of the regional logistics, whichbecomes the important content of the regional economic development. As an efficient regionallogistics network is very important to reduce logistics cost and to improve logistical efficiency, thenetwork constructing, performance analysis and optimal design have been paid more attention to.From the point of the relationship between network structure and system elements, regionallogistics network is a complex system. Studying the structure evolution of the regional logistics andoptimization design based on complex network theory will preferably explore the inner mechanismof the regional logistics activity, which has a theoretical and practical significance.Current research on the regional logistics network is not mature enough and lack system theory.As an interdisciplinary subject, most researchers studied one particular network from theirrespective knowledge areas, which easily leads to one-sided and partial result. Moreover, the mostof the researchers simply applied the complex network theory to the regional logistics network, andjust described the network with some nodes and edges. They failed to analyze the regional logisticsnetwork system profoundly.In the paper, we combine the theory of complex network with the characteristics of theregional logistics network structure to study the model and optimization of the regional logisticsnetwork. First, we introduce the research status of the regional logistics network based on thecomplex network theory, analyze the structure characteristics and the complexity of the network,and discuss the principle of regional logistics network modeling. Secondly, taking the JIANGSUprovince regional logistics network as an example, we study the structure characteristics and thecorrelation dynamics. Then, based on the scale-free network we construct a regional logisticsnetwork model. Based on the link weight we improved the model, and the improved model showsthe Superiority with the simulation. Finally, we construct the influence propagation model of theregional logistics network based on the SIR model, analyzing what effect would be with differentparameters on the model. With the simulation results we lastly put forward the correspondingmeasures for network optimization.