Application of Possibility Entropy Weight in Security Risk Assessment of Tailing Dam
Shi Dong-mei · Science Technology and Engineering · 2013
In the risk evaluation of tailings dam,according to the weights of monitoring index,and the low of evaluation effect.The monitoring data of fuzziness,randomness and incompleteness are represented by possibility distributions,which are mapped to the interval[0,1]for the united dimension.And a new method is presented to calculate the similarity measure of generalized fuzzy numbers on the basis of the generalized fuzzy numbers as the expert information.In order to get more reasonable and effective weights,the weights of possibility entropy are adjusted by the similarity measures with generalized fuzzy expert information,and the validity is verified by examples.The method has better adaptability that not only includes the quantitative property and objectivity of possibility entropy,but also the inclusiveness of expert information of generalized fuzzy,providing the theoretical basis for security risk assessment of tailing dam.