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Method for determining evaluation factor weight based on triangular fuzzy number

A triangular fuzzy, evaluation factor technology, applied in the field of determination of the weight of evaluation factors, can solve problems such as dependence, lack of objective analysis, and inaccurate evaluation results

Inactive Publication Date: 2018-07-10
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It can be found that although this method is simple, it has an obvious disadvantage, that is, it relies on the subjective feeling of the survey object and lacks objective analysis and processing, which easily leads to inaccurate evaluation results.

Method used

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  • Method for determining evaluation factor weight based on triangular fuzzy number
  • Method for determining evaluation factor weight based on triangular fuzzy number
  • Method for determining evaluation factor weight based on triangular fuzzy number

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Experimental program
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Embodiment

[0051] Taking the overall anti-interference ability evaluation of radio fuze as the research object, the selected factors are as follows: figure 1 shown. For simplicity, the weight r takes the same value. The original data is processed according to the above method, and the assembled fuzzy judgment matrix is ​​obtained as shown in Table 2-Table 4.

[0052] Table 2 is the second layer of factors: anti-detection index u 1 and anti-interference index u 2 The results of the triangular fuzzy judgment matrix composed of two factors are shown in Table 2:

[0053] Table 2 Judgment matrix of each factor in the factor set

[0054]

u 1

u 2

u 1

1

(0.15,0.20,0.25)

u 2

(4.00,5.00,6.67)

1

[0055] Table 3 is the anti-detection index u 1 Corresponding underlying factor: fuze radiation power u 11 and the fuze interception probability u 12 The results of the triangular fuzzy judgment matrix composed of two factors are shown in Table 3:

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Abstract

The invention provides a method for determining an evaluation factor weight based on a triangular fuzzy number. In the invention, firstly, a triangular fuzzy number determination matrix is established, and through a series of mathematical processing, the factor weight of fuzzy comprehensive evaluation is finally acquired so that subjective determination during a process of determining the factor weight accords with the thinking habit of a person and an expression mode, and some defects in a traditional method are improved to some extent. By using the method, the accuracy and the effectivenessof the fuzzy comprehensive evaluation are increased.

Description

technical field [0001] The invention relates to the determination of the weights of evaluation factors in fuzzy comprehensive evaluation, in particular to a method for determining the weights of evaluation factors based on triangular fuzzy numbers. Background technique [0002] When using the fuzzy comprehensive evaluation method to evaluate and make decisions on practical problems, it is necessary to determine the weight of the evaluation factors. The usual method is that the respondents directly give the value they think is appropriate according to their knowledge, experience, preference and other factors, and then form the weight set W={w 1 ,w 2 ,...,w n}, where w i (i=1,2,...n) is the weight of the i-th factor. It can be found that although this method is simple, it has an obvious disadvantage, that is, it relies on the subjective feeling of the survey object and lacks objective analysis and processing, which easily leads to inaccurate evaluation results. Contents ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06N7/02
CPCG06N7/02
Inventor 赵惠昌王淑芬
Owner NANJING UNIV OF SCI & TECH