Functional marked point processes: a natural structure to unify spatio-temporal frameworks and to analyse dependent functional data
Journal article, 2021

This paper treats functional marked point processes (FMPPs), which are defined as marked point processes where the marks are random elements in some (Polish) function space. Such marks may represent, for example, spatial paths or functions of time. To be able to consider, for example, multivariate FMPPs, we also attach an additional, Euclidean, mark to each point. We indicate how the FMPP framework quite naturally connects the point process framework with both the functional data analysis framework and the geostatistical framework. We further show that various existing stochastic models fit well into the FMPP framework. To be able to carry out nonparametric sta-
tistical analyses for FMPPs, we study characteristics such as product densities and Palm distributions, which are the building blocks for many summary statistics. We proceed to defining a new family of summary statistics, so-called weighted marked reduced moment measures, together with their nonparametric estimators, in order to study features of the functional marks. We further show how other summary statistics may be obtained as special cases of these summary statistics. We finally apply these tools to analyse population structures, such as demographic evolution and sex ratio over time, in Spanish provinces.

Author

Mohammad Ghorbani

Luleå University of Technology

Ottmar Cronie

Chalmers, Mathematical Sciences, Applied Mathematics and Statistics

Jorge Mateu

Universitat Jaume I De Castellon

Jun Yu

Umeå University

Test

1133-0686 (ISSN)

Vol. 30 529-568

Subject Categories

Probability Theory and Statistics

DOI

10.1007/s11749-020-00730-2

More information

Latest update

7/5/2023 1