摘要
针对序信息系统下经典优势关系粗糙集在求解优势类时对于属性值的要求过于严格,导致评价模型失效,而单阈值约束容差优势关系粗糙集对于属性个数的要求又过于宽松,造成评价结果无法容纳人的感知和判断这一问题,提出一种基于双阈值约束容差优势关系的粗糙评价模型。首先,提出双阈值约束容差优势关系的基本概念并对其相关性质予以研究;然后,基于此拓展的优势关系给出优势度的定义,并结合统计分析方法构建基于双阈值约束容差优势关系的粗糙评价模型;最后,将该模型应用于我国区域建筑业综合实力评价中,并将所得结果与原通过经典优势关系粗集法得到的排序结果进行对比分析。结果表明基于双阈值约束容差优势关系的粗糙评价模型在解决多属性决策问题方面更加合理、可靠。
Considering the problems that classical dominance relation rough set is too strict about attribute values in solving the dominant class which may lead to the failure of the evaluation model, and single-threshold constrained tolerance dominance relation rough set was too loose about attribute number which may cause inconsistency between the evaluation results and human cognitive judgment in the ordered information system, a rough evaluation model based on dual-threshold constraint tolerance relation was proposed. Firstly, the concept of dual-threshold constrained tolerance dominance relation was proposed and its relevant properties were studied. Then, based on the extended dominance relation, the definition of dominant degree was proposed and a rough evaluation model was built by using statistical analysis method. Finally, the model was applied to the comprehensive strength evaluation of the regional building industry and the sorting results were verified in comparison with the results by using classical dominance relation rough set. According to the results, the proposed model presents more rationality and high efficiency in multi-attribute decision issues.
出处
《计算机应用》
CSCD
北大核心
2016年第11期3131-3135,共5页
journal of Computer Applications
关键词
序信息系统
阈值约束
容差优势关系
粗糙评价模型
建筑业综合实力评价
ordered information system
threshold limitation
tolerance dominance relation
rough evaluation model
comprehensive strength evaluation of building industry