改进的决策矩阵及其属性约简方法

Improved Decision Matrix and Attribute Reduction

研究了基于决策矩阵的决策表属性约简的方法,用反例指出文献[3]中的两处错误:核的计算方法是错误的,而且属性约简算法不完备.然后给出一个改进的决策矩阵和属性约简方法,例子分析表明,改进后的方法是有效的和完备的.

The attribute reduction of decision table based on the decision matrix is studied. With a counterexample we point out two errors in reference [ 3 ] ： calculating the core of the decision table is not correct and the algorithm is not complete. Then, we present an improved decision matrix together with a method for attribute reduction of the decision table and an example shows that the improved method is effective and complete.