基于变精度粗糙集的房地产企业盈利能力评价

The Evaluation of Profitability of Real Estate Enterprises Based on Variable Precision Rough Set

在利用传统粗糙集理论确定属性指标的权重时,由于分类要求比较严格,原有的信息量不能完全利用,导致许多属性指标的权重相同,与实际情况不相吻合。变精度粗糙集降低了分类要求,丰富了分类的多样性,能够充分利用原有的信息,求得的指标属性一般不会完全相同,能客观反映现实。运用变精度粗糙集理论确定房地产企业盈利能力评价指标的权重,并通过模糊评价法对我国部分上市房地产企业的盈利能力进行评价。

When the traditional rough set theory was applied to determine the weight of attribute indexes,the original information cannot be fully useddue to the strict requirements of classification,resulting in the same weight of many attribute indexes,which is not consistent with the real situation.Variable precision rough set can reduce the requirements of classification and enrich the types of classification,whichmakes full use of the original information so as to obtain different index attributes.It can objectively reflect the reality.The theory of variable precision rough set is applied to determine the weight of the evaluation index to evaluate the profitability of real estate enterprises.It also evaluates the profitability of some listed real estate enterprises in China through the fuzzy evaluation method.