Combined with Rough Set and AHP to Determine the Attribute Weight

Determining the attribute weight is a very important part in decision analysis.Considering the shortages in objective attribute weight determining method based on rough set theory and subjective attribute weight determining method based on analytic hierarchy process(AHP),an optimization model of attribute weight is established by the combination of these two methods.And the Matlab tool is used to carry on the simulation calculation,then the example shows the effectiveness of the optimization model.