The multi-objective decision-making model based on grey correlation degree

Due to the case that the decision attribute is interval grey number, a computing method for the multiattribute decision making is proposed. The proposed model for the multi-attribute decision making of grey interval number is developed based on grey degree. Firstly, we proposed dummy ideal grey interval scheme and the negative ideal grey interval scheme. Then, calculate alternative scheme optimal membership degree by considering the distance between the alternative scheme and the ideal scheme, including the positive and negative ideal solution. Then, the optimal degree is calculated. And the optimal decision scheme can be got from perspective of integrity. Finally, an example shows the effectiveness and practicability of the model.