决策表属性集分解的等价性研究

Research on equivalence of attribute set decomposition to decision table

论述了决策表属性集分解的概念和必要性,对分解中的决策等价性问题进行分析,提出了决策表论域上的弱等价条件和部分等价条件,并针对弱等价性判断标准的局限性,进一步提出了决策表样本集取值空间上的强等价条件,使得决策等价性的判断标准更为完备。

The concept of attribute set decomposition and its necessity were discussed, the equivalence of decision in the process of decomposition was analyzed, weak criterion and partial criterion of equivalence on the universe of decision table were proposed. In order to avoid the shortage of weak criterion, strong criterion of equivalence on the value space of the sample set was put forward.