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Indicator system generation method based on entropy weight method

An index system, the technology of entropy weight method, applied in the field of engineering, to achieve the effect of promoting continuous improvement, avoiding risks and avoiding risks

Active Publication Date: 2018-04-27
QINGDAO UNIV OF SCI & TECH
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Problems solved by technology

Through reviewing the literature, it was not found that the entropy weight method was applied to the generation of the safety index system. At the same time, the generation and analysis of the safety index system came from the accident report. Solve to obtain index system

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  • Indicator system generation method based on entropy weight method
  • Indicator system generation method based on entropy weight method

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Embodiment Construction

[0034] See attached Figure 1-2 , an index system generation method based on the entropy weight method, assuming that there are n accident case sample sets R, and each sample has m non-repetitive indexes, the index system generation method includes the following steps:

[0035] Step 1: Based on the processing and analysis of chemical accident case samples, the average amount of information contained in the samples is obtained, that is, the information entropy Ei of the samples is obtained;

[0036] Step 2: Based on the occurrence time T(ti) of the accident case sample and the degree of damage w i and the influence of feature information such as information entropy on the accident, and calculate the weight W of the sample i ;

[0037] Step 3: According to the sample weight W i and the information content of the sample index, and obtain the proportion p of each index of the sample j ;

[0038] Step 4: Based on the original index weight and time parameters, use the idea of ​...

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Abstract

The invention relates to an indicator system generation method based on an entropy weight method. Based on the safety management indicator system of the chemical enterprise, the method researches reasonable improvement and updating on the basis of the original indicator system to construct a new indicator system. The basis of improvement is that the historical chemical accident cases act as the analysis data according to the irrationality of the data reverse analysis indicator weight. The entropy weight method is not the algorithm of a large number of sample data assignment, the entropy weightmethod is adopted to evaluate the sample quality to form the sample weight, the weight of the safety indicator system is reversely analyzed and calculated on the basis of the data and the indicator weight is appropriately adjusted and updated. Reasonable and necessary modification is made according to the actual situation so that continuous improvement of enterprise safety supervision and safetyevaluation can be promoted and the risk avoidance can be better performed.

Description

technical field [0001] The invention belongs to the technical field of engineering and relates to an index system generation method based on an entropy weight method. Background technique [0002] With the vigorous development of the chemical industry, the frequency of chemical accidents in chemical enterprises is also increasing, and chemical accidents have caused huge losses to the economic and social environment. Evaluating and measuring the safety management level of chemical enterprises is one of the ways to avoid risks from the root. The safety management level evaluation index system of chemical enterprises is an effective method to evaluate the uncertainty of chemical environmental risks, so as to avoid and reduce environmental risks from the source. At present, various safety management level index evaluation systems have been formulated based on the integration of expert experience and practical application experience at home and abroad. However, due to the diffe...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06
CPCG06Q10/0635G06Q10/06393
Inventor 杜军威于洋洋胡强李浩杰马超
Owner QINGDAO UNIV OF SCI & TECH
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