Analytic Hierarchy Process Automatically

The analytic hierarchy process (AHP) is a structured technique for organizing and analyzing complex decisions, and may aid the decision maker to set priorities and make the best choice, the related research and applications are very extensive. However, this method has obvious drawbacks, when making pairwise comparisons with respect to the criteria and alternatives, the decision maker must give an exact number based on somewhat vague feeling, and all these relative priority numbers are restrict to integers. These unfounded processes can lead to errors and inconsistence. We make some fundamental improvements to AHP method. The first one is that we change AHP's questionnaire from discrete numbers to a close continue interval, when making pairwise comparisons, the decision maker gives an interval instead of a value. The second improvement is that we give an algorithm to find the best parameter set under the decision maker's interval constraints. By all these improvements, the decision making processing will be more responsive to decision makers and the decision results are more consistent.