This paper provides quantitative Central Limit Theorems for nonlinear transforms of spherical random fields, in the high-frequency limit. The sequences of fields that we consider …
We consider the problem of estimating the covariance function of an isotropic Gaussian stochastic field on the unit sphere using a single observation at each point of the discretized …
The purpose of the present paper is to investigate a class of spherical functional autoregressive processes in order to introduce and study LASSO (Least Absolute Shrinkage …
We investigate here a generalized construction of spherical wavelets/needlets which admits extra-flexibility in the harmonic space, ie, it allows the corresponding support in multipole …
S Bourguin, C Durastanti - Journal of Statistical Planning and Inference, 2018 - Elsevier
In this paper, quantitative central limit theorems for U-statistics on the q-dimensional torus defined in the framework of the two-sample problem for Poisson processes are derived. In …
C Durastanti - Statistical Methods & Applications, 2016 - Springer
The aim of this paper is to establish rates of convergence to Gaussianity for wavelet coefficients on circular Poisson random fields. This result is established by using the Stein …
The aim of this paper is to study nonparametric regression estimators on the sphere based on needlet block thresholding. The block thresholding procedure proposed here follows the …
The aim of this paper is to define a nonlinear least squares estimator for the spectral parameters of a spherical autoregressive process of order 1 in a parametric setting …
C Durastanti, N Turchi - Journal of Nonparametric Statistics, 2023 - Taylor & Francis
This paper is concerned with the estimation of the partial derivatives of a probability density function of directional data on the d-dimensional torus within the local thresholding …