New decision support method of bid evaluation based on facts-set regression

Customarily modern procurement adopts a multi-purpose procurement way, so the bid evaluation and contractor selection will be a great problem. The purpose of this paper is to provide a new method to resolve the problem by using regression analysis based on facts-set. This method can evaluation all bids with some cheap computer software. By proving the scientificity of this new method, the author thinks that it can avoid the defects of the past evaluation methods efficiently. In virtue of the regression analysis to carry on the bid evaluation, this paper puts forward three kinds of different concrete ways: comparison of the residuals, using equivalent-benefit curve, setting up indexes-related evaluation system. The method can be used separately to trade off two or several factors, and can handle indexes whatever linear correlation or nonlinear correlation. This method also can be combined with other method in the procession of bid evaluation.