Listar MAT_Articles por autoría "77f6796c-0e65-4cea-9677-33abe7db848e"
Mostrando ítems 1-11 de 11
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Assessing local differences between the spatio-temporal second-order structure of two point patterns occurring on the same linear network
D'ANGELO, Nicoletta; adelfio, giada; Mateu, Jorge (2021)We introduce Local Indicators of Spatio-Temporal Association (LISTA) functions on linear networks and use them to build a statistical test for local second-order structure. This allows to identify differences in the ... -
Joint second-order parameter estimation for spatio-temporal log-Gaussian Cox processes
Siino, Marianna; adelfio, giada; Mateu, Jorge Springer (2018)We propose a new fitting method to estimate the set of second-order parameters for the class of homogeneous spatio-temporal log-Gaussian Cox point processes. With simulations, we show that the proposed minimum contrast ... -
Local inhomogeneous second-order characteristics for spatio-temporal point processes occurring on linear networks
D'ANGELO, Nicoletta; adelfio, giada; Mateu, Jorge Springer (2022)Point processes on linear networks are increasingly being considered to analyse events occurring on particular network-based structures. In this paper, we extend Local Indicators of Spatio-Temporal Association (LISTA) ... -
Local Inhomogeneous Weighted Summary Statistics for Marked Point Processes
D'ANGELO, Nicoletta; adelfio, giada; Mateu, Jorge; Cronie, Ottmar Taylor and Francis (2023)We introduce a family of local inhomogeneous mark-weighted summary statistics, of order two and higher, for general marked point processes. Depending on how the involved weight function is specified, these summary statistics ... -
Locally weighted minimum contrast estimation for spatio-temporal log-Gaussian Cox processes
D'ANGELO, Nicoletta; adelfio, giada; Mateu, Jorge Elsevier (2022-12-09)A local version of spatio-temporal log-Gaussian Cox processes is proposed by using Local Indicators of Spatio-Temporal Association (LISTA) functions plugged into the minimum contrast procedure, to obtain space as well as ... -
On Some Statistical Properties of the Spatio-Temporal Product Density
Rodríguez-Berrio, Felipe; Rodríguez-Cortés, Francisco Javier; Mateu, Jorge; adelfio, giada Universidad Nacional de Colombia (2021)We present an extension of the non-parametric edge-corrected Ohser-type kernel estimator for the spatio-temporal product density function. We derive the mean and variance of the estimator and give a closed-form ... -
Self-exciting point process modelling of crimes on linear networks
D'ANGELO, Nicoletta; Payares García, David Enrique; adelfio, giada; Mateu, Jorge SAGE Publications (2022)Although there are recent developments for the analysis of first and second-order characteristics of point processes on networks, there are very few attempts in introducing models for network data. Motivated by the analysis ... -
Some properties of local weighted second-order statistics for spatio-temporal point processes
adelfio, giada; Siino, Marianna; Mateu, Jorge; Rodríguez-Cortés, Francisco Javier Springer (2020)Diagnostics of goodness-of-fit in the theory of point processes are often considered through the transformation of data into residuals as a result of a thinning or a rescaling procedure. We alternatively consider here ... -
Spatial pattern analysis using hybrid models: an application to the Hellenic seismicity
Siino, Marianna; adelfio, giada; Mateu, Jorge; CHIODI, Marcello; D’Alessandro, Antonino Springer Verlag (2017)Earthquakes are one of the most destructive natural disasters and the spatial distribution of their epi- centres generally shows diverse interaction structures at different spatial scales. In this paper, we use a ... -
Spatio‐temporal classification in point patterns under the presence of clutter.
SIINO, MARIANNA; Rodríguez-Cortés, Francisco Javier; Mateu, Jorge; adelfio, giada Wiley (2019-08-23)We consider the problem of detection of features in the presence of clutter forspatio-temporal point patterns. In previous studies, related to the spatial context,Kth nearest-neighbor distances to classify points between ... -
Testing for local structure in spatiotemporal point pattern data
Siino, Marianna; Rodríguez-Cortés, Francisco Javier; Mateu, Jorge; adelfio, giada Wiley (2017-09-03)The detection of clustering structure in a point pattern is one of themain focuses of attention in spatiotemporal data mining. Indeed, statistical tools for clustering detection and identification of individual events ...