| In the comprehensive evaluation,the weight coefficient plays an important role.Whether the determination of the weight coefficient is reasonable directly affects the rationality of the comprehensive evaluation results.With the application of comprehensive evaluation in the field of sports becoming more and more popular,people attach great importance to the rationality of weighting evaluation indexes.However,due to the lag of theoretical research on weight coefficient and its rationality,there is no clear standard for how to evaluate the rationality of empowerment,and there is no systematic view on how to improve the rationality of empowerment.By using the methods of literature,systematic analysis,exemplification and mathematical analysis,this paper discusses the rational connotation of weight coefficient,studies how to evaluate the rationality of weight,analyzes the problems of weight in the comprehensive evaluation of sports,and explores the ways to improve the rationality of weight.The results are as follows:(1)The meaning of weight coefficient.The weight coefficient is a category of relation,which is located in the weight system and represents the weight relation between the object factors and the target factors.(2)Three kinds of weight relations in comprehensive evaluation.According to the different relationship between evaluation indexes,the weight relationship in comprehensive evaluation can be divided into three types: value relationship,formative weight relationship and reflective weight relationship,and the corresponding weight coefficients represent different contents.(3)The rational connotation of weight coefficient.The rationality of weight coefficient has two meanings: the rationality of weight result and the rationality of weight process.The rationality of the result of weighting refers to the degree that the weight coefficient reflects the weight relationship between the object factors and the target factors;the rationality of the process of weighting refers to the rationality of each link in the process of weighting.(4)The basic process of empowerment.The basic process of weighting is divided into four main parts,that is,identifying weight system and weight relationship,collecting weight relationship information,processing information and determining weight coefficient.(5)The reference standard for evaluating the rationality of empowerment.Including the rationality of weighting system,the rationality of weighting relationship,the rationality of information collection and the rationality of information processing.(6)The rationality analysis of empowerment in the comprehensive evaluation of sports.According to the evaluation standard of rationality in the process of weighting,the rationality of the commonly used weighting methods(expert weighting method,principal component weighting method and grey correlation degree weighting method)in the comprehensive evaluation of sports is analyzed,and the existing problems and risks are pointed out.(7)Ways to improve the rationality of empowerment.Based on the common problems in the field of comprehensive evaluation of sports,aiming at the established evaluation index system,this paper puts forward the ways to improve the rationality of weighting in principle: standardizing the weighting procedure;selecting the weighting method according to the weight relationship;ensuring the representativeness of samples;controlling the measurement errors in the process of weighting.Conclusion: the weight coefficient is a relation category which represents the weight relationship between a group of object factors and a certain target factor.The determination and analysis of the weight coefficient should be carried out in a clear weight system.The rationality of weight coefficient refers to the degree that reflects the weight relationship between the object factors and the target factors.The rationality of evaluation weight coefficient can analyze the rationality of each weighting link according to the basic process of weighting.In the comprehensive evaluation of sports,attention should be paid to the standardization of the empowering procedure,the pertinence of the empowering method,the representativeness of the evaluation sample and the scientificity of the measurement. |
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