At. Dingankar et Iw. Sandberg, A NOTE ON ERROR-BOUNDS FOR FUNCTION APPROXIMATION USING NONLINEAR NETWORKS, Circuits, systems, and signal processing, 17(4), 1998, pp. 449-457
For many problems in classification, compensation, adaptivity, identif
ication, and signal processing, results concerning the representation
and approximation of nonlinear functions can be of particular interest
to engineers. Here we consider a large class of functions f that map
R-n into the set of real or complex numbers, and we give bounds on the
number of parameters of a certain approximation network so that f can
be approximated to within a prescribed degree of accuracy using an ap
propriate configuration of the network. We also describe related work
in the neural networks literature.