Neural network model incorporating a genetic algorithm in estimating construction costs

Gwang Hee Kim, Jie Eon Yoon, Sung Hoon An, Hun Hee Cho, Kyung In Kang

Research output: Contribution to journalArticlepeer-review

99 Citations (Scopus)


This paper applies the back-propagation network (BPN) model incorporating genetic algorithms (GAs) to cost estimation. GAs were adopted in the BPN to determine the BPN's parameters and to improve the accuracy of construction cost estimation. Previously, there have been no appropriate rules to determine these parameters. The construction cost data for 530 residential buildings constructed in Korea between 1997 and 2000 were used for training and evaluating the performance of the model. This study showed that a BPN model incorporating a GA was more effective and accurate in estimating construction costs than the BPN model using trial and error.

Original languageEnglish
Pages (from-to)1333-1340
Number of pages8
JournalBuilding and Environment
Issue number11
Publication statusPublished - 2004 Nov


  • Construction cost estimating
  • Genetic algorithms
  • Neural networks

ASJC Scopus subject areas

  • Environmental Engineering
  • Civil and Structural Engineering
  • Geography, Planning and Development
  • Building and Construction


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