The Method of Attribute Weight Distribution in multi-attribute system

The attribute of weight distribution is an important content in the research of multi-attribute system. In order to make the distribution more reasonable, the two weight distribution method based on rough set theory and the weight combination method based on D-S evidence theory have been put forward. The two weight distribution schemes which have been obtained describe the importance of each attribute to the system from different perspectives, that lays the foundation for more scientifically finishing weighting attributes. The results obtained by the proposed method are similar to the existing linear combination method in most cases. If the combined weight distribution program contains an incorrect understanding, they will perform differently, at this time linear combination method is failure, the combination method in this paper is still effective and reasonable, which has wider application.