A Weighted Attribute Decision Making Approach in Incomplete Soft Set

Kong. et al. (2014) [1] presented an efficient approach which gives weighted-average of all possible choice values of soft sets under incomplete information system, However, the weights of the attributes are not considered, although all the entries are "1", the importance of all attributes are not all the same, in our paper, we first combined the weights of attributes and Kong's approach together, the weights of attributes are derived from the data directly, much computation are involved, It is demonstrated that the proposed approach are reasonal in finding the choice values of soft sets. Second, we give a concise proof of the main theorem in Kong. et al. (2014) [1]