Grey Target Decision Model with Interval Number Based on Range Transformation

In view of the limits of existing grey target decision models with interval number, a new normalizing formula based on range transformation is given. At the same time, on the basis of the principle of TOPSIS, a new grey target decision model is set up considering not only the distance from positive bull's-eye but also from negative ones. An example is given to show the application of the method, and the results are compared with other methods. The results verify the validity and practicability of the method.