一种基于分布约简的规则获取方法

Rule Acquisition Method Based on Distribution Reduction

基于决策表分布约简定义规则的分布核与分布约简概念,提出一种基于分布约简的规则获取方法。首先确定条件类的分布核,进而采用启发式算法计算其分布约简,挖掘出最简产生式规则。该方法能适应决策表的不一致情形,且运用此方法所提取的规则集能够保持与原信息系统一致。

This paper defined distribution core and distribution reduction of a rule by applying notion of decision table＇s distribution reduction, and put forward a kind of method based on distribution reduction for acquiring rules. This method got the core of each condition class first, then achieved the distribution reduction of that by applying heuristic algorithm, and mined concise production rules for each condition class, This method can be applicable to inconsistent decision tables, and the rule result keep consist to the original information system.