为提高水闸安全评价中指标权重计算的准确性与合理性,克服常用权重计算方法赋权方式单一、主观性较强和计算粗糙等弊端,引入三标度层次分析法作为主观赋权方式;提出基于改进白化权函数的离差最大化法,并以此方法作为水闸评价的客观赋权方式。在此基础上,提出了一种融合主、客观权重的新型组合赋权方法,并应用于水闸安全评价的指标权重计算。工程实例表明:该方法可操作性强,能有效利用专家经验和数据信息,减小主观因素和不确定信息的干扰,为水闸安全评价指标权重确定提供了新思路。
In order to improve the accuracy and rationality in calculating the index weights of sluice safety assessment, and to overcome such drawbacks as single weighing manner, strong subjectivity and rough calculation of commonly-used weights calculation method, three-scale analytic hierarchy process is introduced as a subjective weighing method. The method of maximizing deviations based on the improved whitenization weight function is proposed as an objective weighing method. On this basis, a novel combination weighing method which integrates subjective and objective weights is put forward and is applied to the index weights calculation in sluice safety assessment. Engineering examples indicate that this method is reasonably practicable with strong operability, and could effectively make use of the expertise experience and data information to eliminate the interference of subjective factors and uncertain information. It offers a new idea in determining index weights for sluice safety assessment.
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