독립변수와 종속변수 정규화를 통한 총 공사기간 예측성능 분석

Abstract

The estimation of the appropriate construction period in the construction project is one of the main factors for successfully completing the project. Various artificial intelligence technologies have been developed and various efforts have been made to improve prediction performance during the construction period by applying them, but it is still difficult to accurately predict the construction period. It is judged that the predictive performance of the learning data during the construction period may be poor due to the large deviation of the data between the independent variable and the dependent variable. In this study, it was intended to improve the predictive performance of the construction period by reducing the data deviation through the normalization of the dependent and independent variables of the training data. In this study, a total of 953 data from by the PPS(Public Procurement Service) in Korea were used for five years from 2017 to 2022, and to reduce the relative difference between independent and dependent variable data, three models were defined, and the training results were compared and analyzed. As a result of the analysis, it is judged that the model using Log normalization has the best prediction performance. © 2023, Architectural Institute of Korea. All rights reserved.