Kriging with external drift for functional data for air quality monitoring

R Ignaccolo, J Mateu, R Giraldo - Stochastic environmental research and …, 2014 - Springer
Functional data featured by a spatial dependence structure occur in many environmental
sciences when curves are observed, for example, along time or along depth. Recently, some …

A universal kriging approach for spatial functional data

W Caballero, R Giraldo, J Mateu - Stochastic environmental research and …, 2013 - Springer
In a wide range of scientific fields the outputs coming from certain measurements often come
in form of curves. In this paper we give a solution to the problem of spatial prediction of non …

[HTML][HTML] Spatial autoregressive and moving average Hilbertian processes

MD Ruiz-Medina - Journal of Multivariate Analysis, 2011 - Elsevier
This paper addresses the introduction and study of structural properties of Hilbert-valued
spatial autoregressive processes (SARH (1) processes), and Hilbert-valued spatial moving …

Spatial functional prediction from spatial autoregressive Hilbertian processes

MD Ruiz‐Medina - Environmetrics, 2012 - Wiley Online Library
The class of spatial autoregressive Hilbertian models (SARH (1) processes) is considered.
The projection estimation methodology proposed here is based on the biorthogonal …

Functional SAR models: With application to spatial econometrics

W Pineda-Ríos, R Giraldo, E Porcu - Spatial statistics, 2019 - Elsevier
Simultaneous autoregressive (SAR) models have been extensively used for the analysis of
spatial data in areas as diverse as demography, economy and geography. These are linear …

Functional time series analysis of spatio–temporal epidemiological data

MD Ruiz-Medina, RM Espejo, MD Ugarte… - … research and risk …, 2014 - Springer
Spatio–temporal statistical models have been proposed for the analysis of the temporal
evolution of the geographical pattern of mortality (or incidence) risks in disease mapping …

Spatial autoregressive functional plug-in prediction of ocean surface temperature

MD Ruiz-Medina, RM Espejo - Stochastic environmental research and risk …, 2012 - Springer
This paper addresses the problem of spatial functional extrapolation in the framework of
spatial autoregressive Hilbertian processes of order one (SARH (1) processes) introduced in …

A local correlation integral method for outlier detection in spatially correlated functional data

J Sosa, P Moraga, M Flores, J Mateu - Stochastic Environmental Research …, 2024 - Springer
This paper proposes a new methodology for detecting outliers in spatially correlated
functional data. We use a Local Correlation Integral (LOCI) algorithm substituting the …

New challenges in spatial and spatiotemporal functional statistics for high-dimensional data

MD Ruiz-Medina - Spatial Statistics, 2012 - Elsevier
Abstract Spatial Functional Statistics has emerged as a powerful tool in the spatial and
spatiotemporal analysis of data arising, for example, from Agriculture, Geology, Soils …

[HTML][HTML] A goodness-of-fit test for functional time series with applications to Ornstein-Uhlenbeck processes

J Álvarez-Liébana, A López-Pérez… - … Statistics & Data …, 2025 - Elsevier
High-frequency financial data can be collected as a sequence of time-ordered curves, such
as intraday prices. The Functional Data Analysis (FDA) framework offers a powerful …