Multiobjective learning in the random neural network Online publication date: Sat, 28-Jun-2014
by Erivelton Geraldo Nepomuceno
International Journal of Advanced Intelligence Paradigms (IJAIP), Vol. 6, No. 1, 2014
Abstract: This paper presents a multiobjective learning algorithm for the random neural network (RNN). A learning process consists in updating the parameters of the RNN. In a monoobjective approach, this update is made by means of the minimisation of one objective function, which is usually quadratic error of input-output. Here, we state a general procedure to update the parameters that take into account more than one objective. The parameter estimation is described as a multiobjective optimisation problem (MOP) and it is solved using weighting problem and gradient descent. The solution of MOP is a set called Pareto-set. A case study is presented, where quadratic error of dynamic input-output and the quadratic error of static curve were used to estimate the parameters of the RNN. We show that multiobjective learning improves the quality of models built from limited-range dynamic data.
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