This is a preview. Log in through your library . Abstract The problem of reconstructing a piecewise constant function from a finite number of its Fourier coefficients perturbed by noise is considered.

We consider the problem of nonparametric regression when the covariate is d dimensional, where d ≥ 1. In this paper, we introduce and study two non-parametric least squares estimators (LSEs) in this ...

The Nature Index 2024 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...