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Particle swarm optimization feedforward neural network for hourly rainfall- runoff modeling in bedup basin, Malaysia

Harun, Sobri and Kuok, King Kuok and Shamsuddin, Siti Mariyam (2010) Particle swarm optimization feedforward neural network for hourly rainfall- runoff modeling in bedup basin, Malaysia. In: The 1st IWA Malaysia Young Water Professionals Conference (IWAYWP 2010), 2-4 March 2010, Best Western Premier Seri Pacific, K. Lumpur.

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Abstract

Owing to the complexity of the hydrological process, Backpropagation Neural Network (BPNN) is the single superior model that is able to calibrate the rainfall-runoff relationship accurately using only rainfall and runoff data. However, BPNN convergence rate is relatively slow and being trapped at the local minima. Therefore, a new evolutionary algorithm (EA) namely Particle swarm optimization (PSO) is proposed to train the feedforward neural network. This Particle Swarm Optimization Feedforward Neural Network (PSONN) is applied to model the hourly rainfall-runoff relationship for Bedup Basin. With the input data of current rainfall, antecedent rainfall, antecedent runoff, the optimal configuration of PSONN successfully simulate current runoff accurately with R=0.975 and E2=0.9605 for training data set and R=0.947 and E2=0.9461 for testing data set. Meanwhile, PSONN also proved its ability to predict the runoff accurately at the lead- time of 3, 6, 9 and 12-hour ahead.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Modeling runoff, Backpropagation Neural Network (BPNN), particle swarm optimization feedforward neural network (PSONN), coefficient of correlation (R), Nash-Sutcliffe coefficient (E2)
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Civil Engineering
ID Code:24162
Deposited By: Liza Porijo
Deposited On:20 Sep 2012 08:32
Last Modified:20 Sep 2012 08:32

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