In order to preprocessing the uncertain system, the paper proposed a new approach based on rough set, which includes reducing redundant attributes, incomplete data recovery and continuous values discretation. The concept of tolerance relationship similar matrix via using an extension of equivalence relationship of rough set theory was defined, and by using the corresponding relationship of condition attributes and decision attributes, the missed data was recovered and the redudant attributes were deleted. Finally, depending on the concept of super-club data, discretization of the continuous attributes was implemented. The illustration and experimental results indicate that the approach is effective and efficient.
['E Xu', 'Lijin Fan', 'Sheng Li', 'Jia-xin Yang', 'Hao Wu', 'Tao Qu', 'Haijun Mu']
Research on preprocess approach for uncertain system based on rough set