Rough analysis method of multi-attribute decision making based on generalized extended dominance relation

A decision analysis method based on extension of rough sets is proposed for multi-attribute decision making problems with preference and incomplete information.Firstly,the concept of generalized extended dominance relation is presented.Then,the rough approximations of knowledge are obtained based on generalized extended dominance relation and decision rules of classification are acquired.Both extended dominance relation and limited extended dominance relation are proved to be special cases of generalized extended dominance relation by contrast analysis.Finally,an example shows the feasibility and effectiveness of the proposed method.