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Use of Radial Basis Function Type Artificial Neural Networks for Runoff Simulation
Author(s) -
Jayawardena A. W.,
Fernando D. Achela K.
Publication year - 1998
Publication title -
computer‐aided civil and infrastructure engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.773
H-Index - 82
eISSN - 1467-8667
pISSN - 1093-9687
DOI - 10.1111/0885-9507.00089
Subject(s) - radial basis function , artificial neural network , basis (linear algebra) , computer science , type (biology) , function (biology) , surface runoff , artificial intelligence , geology , mathematics , biology , ecology , geometry , paleontology , evolutionary biology
In this paper, the applicability of the radial basis function (RBF) type artificial neural networks (ANNs) approach for modeling a hydrologic system is investigated. The method differs from the more widely used multilayer perceptron (MLP) approach in that the nonlinearity of the model is embedded only in the hidden layer of the network. Search for optimal model parameters is carried out in two steps, each of which can be made to be more efficient and much faster than in MLP. This approach is applied to simulate runoff discharges in a small catchment. The results show that the models based on RBF networks can predict runoff with accuracy comparable with that with the MLP approach. An added advantage of RBF network‐based models is that they can be developed with relative ease and with much less time compared with their MLP counterparts.