Hesitant fuzzy sets based water quality assessment
In order to assess the overall state of water bodies,based on the results of single factor evaluation of water quality grades,the correlation coefficient between the indicators and grades is calculated,and strong correlation indicators are selected.An initial matrix of hesitation fuzzy water quality assessment is constructed using expert scoring,and a weighted hesitation fuzzy Lancet distance measure multiple attribute evaluation method is established based on hesitation fuzzy exponential entropy and linear interpolation pessimistic dimensionality.Finally,an example analysis is conducted based on the water quality data of some reservoirs in Zhejiang Province.The results show that the proposed method for overall assessment of water quality is more reasonable and efficient.
water quality evaluationhesitant fuzzy setdistance measuredimension increase