基于投影的区间数评价方法探讨

With respect to the multiple attribute decision making problems with interval numbers, literature [2] gives out a kind of ideal point appraisal method, literature [3] gives out a kind of grey relational analysis appraisal method. This paper gives another method named projection appraisal method. The calculation steps to solve it are given. As the key step, the projection values were calculated for multiple attribute decision making with interval numbers between every alternative and positive ideal point and negative ideal point. Then, according to the projection values, the relative membership degree to the positive point is calculated to rank all alternatives. Finally, a practical problem was analyzed by this method. It showed this method is scientific and effective.