摘要
为减小传统的二支决策中直接接受或拒绝决策带来的决策风险,分析问题决策的多粒度空间,研究了基于风险最小化的多粒度三支决策模型.在三支决策风险代价分析基础上,为寻求最优的粒度空间,结合不同属性特征在粒度空间中具有不同决策权重的特点,以粒化重要度和粒化决策权重为启发式信息,从多个不同的粒度层次出发,寻求风险最小的决策行动.最后针对不承诺选项中一些急需决策的现实问题,给出了基于风险控制的二支决策转化方法,并进行了具体的实例应用.
A multi-granularity three-way decision model with minimum risk was proposed to remedy the inevitable risks which arise from traditional two-way decision when accepting or refusing directly, by analyzing question decisions in multi-gra-nularity spaces. Firstly, an effective granularity selection criterion was presented with granulating significance and decision weight in considering of different attribute effects for granularity spaces in different granularity level. Then, the particular three-way decision method with minimum risk was described. Lastly, a two-way transformed decision was studied when certain specific decision making was extremely needed and an application example was given to verify the decision efficiency.
作者
史进玲
张全友
杜根远
Shi Jinlinga Zhang Quanyoua Du Genyuanb(a. International School of Educatio b. College of Information Engineering, Xuchang University, Xuchang 461000, Chin)
出处
《河南师范大学学报（自然科学版）》
CAS
北大核心
2017年第2期101-107,共7页
Journal of Henan Normal University(Natural Science Edition)
基金
国家自然科学基金(U1304403)
2016年许昌市科技局基础与前沿计划研究项目
关键词
分险最小化
粒化
多粒度空间
最优决策
minimum risk
granulating
multi-granularity space
optimal decision
