Research on Key Nodesof Fire Causation Network in Self-built House Based on TOPSIS-SIR Model
In order to reduce the occurrence of self-built house fires in China,based on the 24Model of the accident causa-tion,self-built house fire accident cases were analyzed,resulting in 44 causal factors,4 events,and 128 causal relation-ships.Based on the complex network theory,the topological structure of the self-built house fire causation network was con-structed,and the importance indicators of network nodes were calculated and analyzed.The Criteria Importance Through In-tercriteria Correlation(CRITIC)method was used to calculate the weight of network node importance indicators,and the Technique for Order Preference by Similarity to Ideal Solution(TOPSIS)method was used to analyze the importance of net-work nodes and sort them.Based on the SIR model,the risk propagation influence of important nodes in eight node sorting strategies were simulated and analyzed.The results show that the four methods of TOPSIS,degree,out-degree,and be-tweenness centrality have the same top 3 nodes except for the order.In the simulation analysis of the SIR model,important nodes have a significant impact on the risk propagation,and important nodes assessed by the TOPSIS method have the stron-gest propagation influence,and that weak fire safety awareness,inadequate investigation and rectification of fire safety haz-ards,failure of owners to fulfill their main responsibilities for fire safety,illegal expansion and renovation of existing build-ings,electrical circuit failures,and the non-standard storage of large quantities of flammable materials are key causal factors.Preventive measures are proposed for key nodes to provide support for preventing and reducing the occurrence of self-built house fires.
self-built housefirecausal factorcriteria importance through intercriteria correlation(CRITIC)technique for order preference by similarity to ideal solution(TOPSIS)
NETL
NSTL
万方数据
维普
