2022
DOI: 10.3390/app12199729
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A Stacking Heterogeneous Ensemble Learning Method for the Prediction of Building Construction Project Costs

Abstract: The accurate cost estimation of a construction project in the early stage plays a very important role in successfully completing the project. In the initial stage of construction, when the information necessary to predict construction cost is insufficient, a machine learning model using past data can be an alternative. We suggest a two-level stacking heterogeneous ensemble algorithm combining RF, SVM and CatBoosting. In the step of training the base learner, the optimal hyperparameter values of the base learne… Show more

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Cited by 27 publications
(11 citation statements)
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“…Stacking is an ensemble method that fuses multiple classification models consisting of base and meta-classifiers [ 29 ]. This method unifies various machine-learning methods and shares similarities with other ensemble approaches, such as bagging and boosting [ 30 ]. Stacking’s architecture is divided into two stages: level 0 and level 1 [ 31 ].…”
Section: Review Of Literaturementioning
confidence: 99%
“…Stacking is an ensemble method that fuses multiple classification models consisting of base and meta-classifiers [ 29 ]. This method unifies various machine-learning methods and shares similarities with other ensemble approaches, such as bagging and boosting [ 30 ]. Stacking’s architecture is divided into two stages: level 0 and level 1 [ 31 ].…”
Section: Review Of Literaturementioning
confidence: 99%
“…The study aims to demonstrate how managers can benefit more from the data of completed projects by using ML. Similarly, Park et al [24] proposes a two-level stacking heterogeneous ensemble algorithm that combines RF, SVM, and CatBoosting to estimate the cost of building construction projects at an early stage. The proposed method was evaluated using cost information data disclosed by the public procurement service in South Korea.…”
Section: Related Workmentioning
confidence: 99%
“…We employed the Boruta feature selection algorithm to rst identify the most in uential predictor variables, and subsequently aggregated the predictive power of these variables through a stacking ensemble that incorporates multiple ML methods. Stacking is a powerful ML technique because the use of various models can complement each other on di cult to predict samples, and the ensemble of models can often outperform any individual model [23][24][25][26] . To our knowledge, our group is the rst to implement the stacking methodology to radiation biodosimetry 7 .…”
Section: Introductionmentioning
confidence: 99%