Then the concept of inverse SE-tree(ISE-tree) was put forward,and an ISE-tree based method(CSISE-tree) for deriving all MCSs was presented as well.

• 然后给出翻转的SE-tree(ISE-tree)的概念,并提出基于ISE-tree产生所有极小冲突集的方法(CSISE-tree)。