不一致决策表下基于D-S证据理论的知识约简  

Knowledge Reductions Based on D-S Evidence Theory for Inconsistent Decision Table

作　　者：曾凡智[1,2] 卢炎生[1] 黄国顺[2] 陈章[3] 

机构地区：[1]华中科技大学计算机科学与技术学院,湖北武汉430074 [2]佛山科学技术学院计算机系,广东佛山528000 [3]广东商学院计算机学院,广东广州510320

出　　处：《小型微型计算机系统》2009年第2期317-321,共5页Journal of Chinese Computer Systems

基　　金：广东省自然科学基金项目(06023960)资助

摘　　要：对于一致决策表,基于D-S证据理论的知识约简与代数约简所得的结果是一致的,对于不一致决策表,它们并不完全一致.本文通过具体算例说明了基于D-S证据理论的广义决策约简与代数约简的在不一致决策表下的差异性,理论上证明了广义决策约简仅与分配约简是等价的,提出一种基于D-S证据理论求代数约简的方法.理论分析和算例都证明了本文方法的正确性.For consistent decision table, the approach to knowledge reduction based on evidence theory is consistent with algebraic reduction. However, they do not comply with each other for inconsistent decision table. The difference between generalized decision reduction based on D-S evidence theory and algebraic reduction has been illustrated by an example. It is proved that generalized decision reduction is just equivalent to assignment reduction. A new approach to algebraic reduction based on evidence theory is proposed. Its validity is proved by theoretical analysis and an example is showed.

关 键 词：不一致决策表 D-S证据理论 广义决策约简 分配约简 代数约简 

分 类 号：TP18[自动化与计算机技术—控制理论与控制工程]