An improved multi-expression programming algorithm applied in function discovery and data prediction Online publication date:: Thu, 19-Dec-2013
by Qingke Zhang; Bo Yang; Lin Wang; Jianzhang Jiang
International Journal of Information and Communication Technology (IJICT), Vol. 5, No. 3/4, 2013
Abstract: This paper presents an improved multi-expression programming (MEP). In the algorithm, each individual is encoded as a double-layer structure, and two-dimension space operators are introduced through two-dimension crossover and mutation. The problems of symbolic expression are defined and used as benchmarks to compare the effectiveness of proposal method against the baseline single-layer MEP. Experiments showed that our method using two-dimensional super chromosome can find the optimal solution in a short time with small population. Then the improved algorithm is applied to the prediction of 28-day cement compressive strength. Comparison with other three soft computing models, namely MEP model, neural networks (NN) model and fuzzy logic (FL) model on cement strength prediction revealed that the improved MEP model has a lower rate in RMSE and MAE. Test results demonstrate the proposed method is efficient and performed better in function discovery and data prediction.
Online publication date:: Thu, 19-Dec-2013
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Information and Communication Technology (IJICT):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email firstname.lastname@example.org