模糊灰色关联法在分析安全投资因素与效益关系中的应用

灰色关联分析法存在分辨系数的选取主观性较大,比较序列曲线空间位置不同以及因素权重归一化而影响关联度,取平均值求关联度影响评价准确性等缺点。笔者采用线性变换及合理判定分辨系数的方法,确定了改进的关联系数,提出了改进的灰色关联分析法。在明确安全投资的基本内涵及构成的基础上,运用该法可计算出来影响安全投资效益因素的灰色关联度,以进行分析,找出企业安全投资合理的方向,从而可以提高企业安全投资的效益。实例分析表明,该法简便实用,可靠准确,对分析安全投资效益影响因素有较好适用性。

Application of Fuzzy Grey Correlation Method in the Relation Analysis between Safety Investment Factors and Benefit

For grey correlation analysis (GCA), there exists great subjectivity in the choice of resolution ratio, the correlation degree is affected by the normalization of factor weight and varies with the spatial orientation of compared sequence curves. To overcome these shortages, an improved GCA is put forth, in which the correlation degree is properly determined through linear transformation and reasonable decision of resolution ratio. Based on the analysis of connotation and constitution of safety investment, this new GCA can be applied to calculating grey correlation degree of the factors affecting the benefit of safety investment. Through the analysis of grey correlation degree, the direction and aspects for safety investment are made clear, thus, the benefit of safety investment is also improved. The example shows that the improved method is simply practical and accurate.