Preface Contents 1 Overview I Methods of Operator Approximation in System Modelling 2 Nonlinear Operator Approximation with Preassigned Accuracy 2.1 Introduction 2.2 Generic formulation of the… Expand

A new technique is provided for random vector estimation from noisy data under the constraints that the estimator is causal and dependent on at most a finite number p of observations.Expand

We present a new technique with potential applications to numerous areas in signal processing including data compression, filtering, blind channel equalization, and feature selection and… Expand

We present a new technique allowing us to find an optimal filter in the class of so-called second-order filters that generalizes and improves an optimal linear filter associated with the concept of Wiener filtering.Expand

In this paper we propose a systematic theoretical procedure for the constructive approximation of non-linear operators and show how this procedure can be applied to the modelling of dynamical systems.Expand

We consider the constructive approximation of a non-linear operator that is known on a bounded but not necessarily compact set. Our main result can be regarded as an extension of the classical… Expand