两种新的决策表属性约简概念

经典粗糙集理论属性约简的两种定义在对不相容决策表约简时会出现不一致性，本文通过分析这种不一致性，提出了平均决策强度和决策熵的概念，并由此给出了两种新的属性约简定义．通过理论分析和实例验证，用这两种新的属性约简定义对不相容决策表约简的结果是一致的，并且该约简结果更能客观地反映决策表的“决策能力”的实质．

Two New Reduction Definitions of Decision Table

There are two reduction definitions in classical RS theory. When these definitions are used to reduce inconsistent decision table, reduction results could be indifferent. This paper presents two new concepts, mean decision power & decision information entropy, by analyzing those results. Subsequently, this paper proposes two new reduction definitions based that two concepts. When the new definitions are used to reduce inconsistent decision table, the reduction results are uniform, and it is analyzed in theory and tested in practice. In addition, the reduction results can more accurately reflect decision ability of decision table.