Abstract:In order to fully excavate the intrinsic structural characteristics of high dimensional data of thermal conductivity, projection pursuit regression(PPR) non hypothetical modeling technology was proposed to analyze and model the experimental data. The stability of the model was evaluated by the criterion of accuracy consistency test which was consistent with the data of reduction fitting and reserved test. Based on the established PPR model, the thermal conductivity of concrete was simulated, so that the thermal conductivity of concrete can be studied more comprehensively. The results show that this modeling method avoids the problems of subjective assumption and uncertainty of solution results, which exist in the confirmatory data analysis(CDA) method, and has good discipline versatility. The research results not only provide theoretical basis for the accurate calculation of the internal temperature field of concrete structures, but also provide effective solutions for the optimization design analysis of various disciplines.