The application of Principal Component Analysis Algorithm to Identification of Risk Factors in PFI of Construction of Small Towns

摘要

In order to extract vital factors for the establishment of small town, PCA is introduced there. In this paper, the risk estimation of four small town in Shan' xi are taken as analysis data. As result shown, the policy, regulation and financial are the principal components in all the factors, and the policy is the most important one. And the result may be worth considering as making establishment plan.