| Title |
A Study on Estimating Construction Cost of Apartment Housing Projects Using Genetic Algorithm - Support Vector Regression |
| Authors |
Nan, Jun ; Choi, Jae-Woong ; Choi, Hyemi ; Kim, Ju-Hyung |
| DOI |
http://dx.doi.org/10.6106/KJCEM.2014.15.4.068 |
| Keywords |
Cost estimate ; Genetic algorithm ; Support vector regression |
| Abstract |
The accurate estimation of construction cost is important to a successful development in construction projects. In previous studies, the construction cost are estimated by statistical methods. Among the statistical methods, support vector regression (SVR) has attracted a lot of attentions because of the generalization ability in the field of cost estimation. However, despite the simplicity of the parameter to be adjusted, it is not easy to find optimal parameters. Therefore, to build an effective SVR model, SVR's parameters must be set properly without additional data handling loads. So this study proposes a novel approach, known as genetic algorithm (GA), which searches SVR's optimal parameters, then adopt the parameters to the SVR model for estimating cost in the early stage of apartment housing projects. The aim of this study is to propose a GA-SVR model and examine the feasibility in cost estimation by comparing with multiple regression analysis (MRA). The experimental results demonstrate the estimating performance based on the percentage of estimations within 25% and find it can effectively do the accurate estimation without through the trial and error process. |