Knowledge discovery of concrete material using Genetic Operation Trees

Authors:
I-Cheng Yeh;Li-Chuan Lien
Affiliations:
Department of Information Management, Chung Hua University, No. 707, Sector 2, Wufu Road, Hsinchu City 300, Taiwan;Department of Construction Engineering, National Taiwan University of Science and Technology, No. 43, Sector 4, Keelung Road, Taipei 106, Taiwan
Venue:
Expert Systems with Applications: An International Journal
Year:
2009

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Abstract

This study proposed a novel knowledge discovery method, Genetic Operation Tree (GOT), which is composed of operation tree (OT) and genetic algorithm (GA), to automatically produce self-organized formulas to predict compressive strength of High-Performance Concrete. In GOT, OT plays the architecture to represent an explicit formula, and GA plays the optimization mechanism to optimize the OT to fit experimental data. Experimental data from several different sources were used to evaluate the method. The results showed that GOT can produce formulas which are more accurate than nonlinear regression formulas but less accurate than neural network models. However, neural networks are black box models, while GOT can produce explicit formulas, which is an important advantage in practical applications.