Economic benefit evaluation of coal mine safety input based on Choquet fuzzy integral
In order to improve the economic benefits of coal mining enterprises and reasonable arrangement of various safety inputs,a model to solve the correlation between indicators was constructed.Firstly,the influencing factors of economic benefits based on safety investment were analyzed,and a set of scientific and reasonable structural index systems was constructed on this basis.Secondly,the entropy weight method was used to determine the weight of each index.Then,in view of the correlation between indicators,based on the safety input structure,the entropy weight-Choquet fuzzy integral model based on a 2-additive fuzzy measure was introduced to calculate the economic benefit evaluation value.Finally,a coal mine was selected for empirical analysis to verify the feasibility and effectiveness of the constructed model.The results show that the constructed model is more reliable than technique for order preference by similarity to an ideal solution(TOPSIS)method.This model can take into account the mutual influence and correlation between indicators and obtain more accurate and scientific evaluation results.
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