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Asian Journal of Applied Sciences
  Year: 2009 | Volume: 2 | Issue: 2 | Page No.: 150-159
DOI: 10.3923/ajaps.2009.150.159
 
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Cluster Analysis of Rainfall-Runoff Training Patterns to Flow Modeling Using Hybrid RBF Networks

H. Abghari, M. Mahdavi, A. Fakherifard and A. Salajegheh

Abstract:
The artificial intelligence modeling of nonstationary rainfall-runoff has some restriction in accuracy of simulation base on complexity and nonlinearity of training patterns. Statistical preprocessing of trainings could determine homogeneity of rainfall-runoff patterns before modeling in artificial intelligence. In this study, the new hybrid model of artificial intelligence in conjunction with statistical clustering is introduced. Statistical pre-processing effects of 360 rainfall-runoff patterns considered before modeling using Radial Basis Function Neural Networks (RBFNNs). In the first step all 360 monthly rainfall-runoff patterns classify by cluster analysis in 4 groups and each class modeled by different RBFNNs topology. Results of 4 cluster base-RBFNNs compare with no action one and the optimized structure of Hybrid Cluster base-RBFNN models of Nazloochaei river flow present. Results show that clustering of rainfall-runoff patterns and modeling of each dataset by different RBFNNs has higher accuracy than no preprocessing of patterns in prediction and modeling of river flow.
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How to cite this article:

H. Abghari, M. Mahdavi, A. Fakherifard and A. Salajegheh, 2009. Cluster Analysis of Rainfall-Runoff Training Patterns to Flow Modeling Using Hybrid RBF Networks. Asian Journal of Applied Sciences, 2: 150-159.

DOI: 10.3923/ajaps.2009.150.159

URL: https://scialert.net/abstract/?doi=ajaps.2009.150.159

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