Study On The Complex Network Model Based On Knowledge Element For Risk Diffusion In Industrial Economic System

Digital age makes the appearance of new feature that highly interconnection in the industrial economic system based on "Internet",which may make the negative impact induced by risk events spread quickly in the industrial economic system,and influence the stability of industrial economy.This study on risk diffusion in industrial economy would help prevent the diffusion of risk and maintain the stability of industrial economy.We would explore and reveal the mechanism of industrial economic risk diffusion only if we understand the elements and their complex relationships in industrial economic system.Due to the complex network can effectively describe the relationship between system elements and their relations,from the static perspective,we firstly study the modeling method for complex network of industrial economic system which has various economic subjects and various coupling and co-existing economic relationships.We then study the evolution mechanism and stability of complex network of industrial economic system from the dynamic perspective.Based on above two research,the diffusion model of industrial economic risk under the complex network structure of industrial economy is studied to reveal the dynamic characteristics and path of risk diffusion of industrial economy.This study is hopefully to be able to provide some suggestions for industrial economic risk management.The major research contents of this study are as follows:(1)A complex network modeling method based on knowledge element.From the static perspective,the complexity of the elements and their relationships in industrial economic system is analyzed,as well as the complexity of environment faced by industrial economic system.We utilize industry,firm,and product,which are located in different levels of industrial economic system to describe the compositions and relationships existing in the industrial economic system.Based on the knowledge element model,knowledge elements related to industry,firm,and product are proposed and built to describe their intrinsic properties and features.The form and structure of knowledge element network is given and analyzed.The steps and methods of acquiring relevant knowledge elements are given,as well as the multi?relationship description method between industries,firms,and products based on the interconnection of knowledge element attributes.The instantiation process is proposed to build the bridge and mapping between knowledge element network and complex network of industrial economic system.The construction process of complex network of Liaoning industrial economic system is analyzed to be an example.(2)Analysis on the evolution mechanism and stability of complex network of industrial economy.Based on complex network theory and complex system theory,the complex network indicators of industrial economic system are given with the economic implications.The influencing factors and the evolution process of the complex network of industrial economy are analyzed.The evolution process of industrial complex network is the comprehensive result of the changes on both of economic subjects and their relationships.Taking the supply-side structural reform as an example,the evolution mechanism of the complex network of industrial economy is constructed,then derived from the theoretical perspectives.The stability measurement of complex network of industrial economy is given to explore the stability of industrial economic system.The network characteristics and stability of Liaoning province industrial complex network are analyzed.(3)The extended complex network model of industrial economic risk diffusion and risk analysis.The risk measurements of industry,firm,and product are defined.The measurement method of risk correlation among industrial economic subjects are proposed based on Copula function.The extended complex network of industrial economic risk diffusion is constructed based on risk correlation.Considering the risk diffusion among industries,firms,and products,the dynamic model of risk diffusion in industrial economic system is developed based on the SIS model,the influencing factors and characteristics of density change of risky nodes are analyzed to reveal the dynamic feature of industrial risk diffusion.The causes and types for risk diffusion of industrial economy are analyzed synthetically.Considering whether or not the risk correlation is symmetrical,two recognition methods for risk diffusion path in industry economy are proposed.The prevention strategy for risk diffusion therefore is given.The example of risk diffusion among industrial system related to agriculture is given.