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《Chinese Journal of Underground Space and Engineering》 2006-06
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A Combination Weighting Method for Determining the Index Weight in Geological Hazard Risk Assessment

KUANG Le-hong,XU Lin-rong,LIU Bao-chen(School of Civil and Architecture Engineering of Central South University,Changsha 410075,China)  
Considering the deficiencies of the indexes weight method in present risk evaluation,firstly,a formula of calculating the relative significance of indexes is proposed based on rough set theory and the traditional analytic hierarchy process(AHP) method of subjective weight method is improved.Then the synthesis optimization process is carried out with entropy value method of the objective weight method to obtain the combination weight of the evaluation indexes;Finally,the combination weight method is proposed for selecting the value of the favorable coefficient of the subjective and objective weight of the evaluation indexes.The objective and subjective aspects of indexes are taken into account in this method,and a relatively reasonable weight value may be obtained by combining the expert judgment and the objective analysis.
【Fund】: 铁道部科技研究开发计划重点课题基金项目资助(2005F024)
【CateGory Index】: X43
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