Locally weighted minimum contrast estimation for spatio-temporal log-Gaussian Cox processes
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Títol
Locally weighted minimum contrast estimation for spatio-temporal log-Gaussian Cox processesData de publicació
2022-12-09Editor
ElsevierCita bibliogràfica
D'ANGELO, Nicoletta; ADELFIO, Giada; MATEU, Jorge. Locally weighted minimum contrast estimation for spatio-temporal log-Gaussian Cox processes. Computational Statistics & Data Analysis, 2023, vol. 180, p. 107679.Tipus de document
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Resum
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 ... [+]
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 time-varying parameters. The new procedure resorts to the joint minimum contrast fitting method to estimate the set of second-order parameters. This approach has the advantage of being suitable in both separable and non-separable parametric specifications of the correlation function of the underlying Gaussian Random Field. Simulation studies to assess the performance of the proposed fitting procedure are presented, and an application to seismic spatio-temporal point pattern data is shown. [-]
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Computational Statistics & Data Analysis, 2023, vol. 180Entitat finançadora
University of Palermo, Italy
Codi del projecte o subvenció
FFR 2021 GIADA ADELFIO
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