A Model Based on Entropy and Plus-minus TOPSIS for Chain Retailing Suppliers Selecting

The problem of how to select suppliers is a multi-objective making,and the evaluation weight is an important academic area.Considering the advantages of TOPSIS(Technique for Order Preference by Similarity to Ideal Solution)for weight and the weight's randomness,this paper introduces Shannon's entropy and uses it to describe the weight of uncertainty.Then,the paper gives a calculation method for the indexes weight and a comprehensive evaluation model is established.The effectiveness of the algorithm is verified through an example.