Through examples, it shows that attribute reduction of an inconsistent decision table cannot entirely be represented by conditional information quantity.
并举例说明，对于不一致决策表，其属性约简的代数表示不能用条件信息量来等价表示。
The conditional entropy of decision table will not change in the reduction process.
知识约简后决策表的条件熵等于初始决策表的条件熵。
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