| 基于风险最小化的多粒度三支决策模型 |
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| 作者单位： | ;1.许昌学院国际教育学院;2.许昌学院信息工程学院 |
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| 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.
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| 关 键 词： | 分险最小化 粒化 多粒度空间 最优决策 |
Multi-granularity Three-way Decision Model based on Minimum Risks |
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| Institution: | ,International School of Education,Xuchang University,College of Information Engineering,Xuchang University |
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| Abstract: | 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. |
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| Keywords: | minimum risk granulating multi-granularity space optimal decision |
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