Alfredo Alegría

According to our database, Alfredo Alegría authored at least 7 papers between 2017 and 2026.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of five.

2026

Series expansion and fast simulations of multivariate isotropic random fields on the paraboloid.

Alfredo Alegría, Galatia Cleanthous, Athanasios G. Georgiadis

Comput. Appl. Math., May, 2026

2025

Neural networks for parameter estimation in geostatistical models with geometric anisotropies.

Alejandro Villazón, Alfredo Alegría, Xavier Emery

Mach. Learn. Sci. Technol., 2025

2024

Matrix-valued isotropic covariance functions with local extrema.

Alfredo Alegría, Xavier Emery

J. Multivar. Anal., March, 2024

2021

Covariance Models and Simulation Algorithm for Stationary Vector Random Fields on Spheres Crossed with Euclidean Spaces.

Xavier Emery, Alfredo Alegría, Daisy Arroyo

SIAM J. Sci. Comput., 2021

Assessing the effective sample size for large spatial datasets: A block likelihood approach.

Jonathan Acosta, Alfredo Alegría, Felipe Osorio, Ronny O. Vallejos

Comput. Stat. Data Anal., 2021

2020

The turning arcs: a computationally efficient algorithm to simulate isotropic vector-valued Gaussian random fields on the d-sphere.

Alfredo Alegría, Xavier Emery, Christian Lantuéjoul

Stat. Comput., September, 2020

2017

The dimple problem related to space-time modeling under the Lagrangian framework.

Alfredo Alegría, Emilio Porcu

J. Multivar. Anal., 2017