Title

Univariate sigmoidal neural network approximation

Abstract

Here we study the univariate quantitative approximation of real and complex valued continuous functions on a compact interval or all the real line by quasi-interpolation sigmoidal neural network operators. This approximation is derived by establishing Jackson type inequalities involving the modulus of continuity of the engaged function or its high order derivative. Our operators are defined by using a density function induced by the logarithmic sigmoidal function. The approximations are pointwise and with respect to the uniform norm. The related feed-forward neural network is with one hidden layer. © 2012 EUDOXUS PRESS, LLC.

Publication Title

Journal of Computational Analysis and Applications

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