Dealing with data coming from a space-time inhomogeneous process, there is often the need of semi-parametric estimates of the conditional intensity function; isotropic or anisotropic multivariate kernel estimates can be used, with windows sizes h. The properties of the intensities estimated with this choice of h are not always good for specific fields of application; we could try to choose h in order to have good predictive properties of the estimated intensity function. Since a direct ML approach cannot be followed, we propose an estimation procedure, computationally intensive, based on the subsequent increments of likelihood obtained adding an observation at time. The first results obtained are very encouraging. Some application in statistical seismology is presented.

Adelfio, G., Chiodi, M. (2011). Kernel intensity for space-time point processes with application to seismological problems. In B. Fichet, D. Piccolo, R. Verde, M. Vichi (a cura di), Classification and multivariate analysis for complex data structures. (pp. 401-408). Berlin : Springer-Verlag.

Kernel intensity for space-time point processes with application to seismological problems

ADELFIO, Giada;CHIODI, Marcello
2011-01-01

Abstract

Dealing with data coming from a space-time inhomogeneous process, there is often the need of semi-parametric estimates of the conditional intensity function; isotropic or anisotropic multivariate kernel estimates can be used, with windows sizes h. The properties of the intensities estimated with this choice of h are not always good for specific fields of application; we could try to choose h in order to have good predictive properties of the estimated intensity function. Since a direct ML approach cannot be followed, we propose an estimation procedure, computationally intensive, based on the subsequent increments of likelihood obtained adding an observation at time. The first results obtained are very encouraging. Some application in statistical seismology is presented.
2011
Settore SECS-S/01 - Statistica
Adelfio, G., Chiodi, M. (2011). Kernel intensity for space-time point processes with application to seismological problems. In B. Fichet, D. Piccolo, R. Verde, M. Vichi (a cura di), Classification and multivariate analysis for complex data structures. (pp. 401-408). Berlin : Springer-Verlag.
File in questo prodotto:
File Dimensione Formato  
adelfio-chiodi_caserta2008_rev.pdf

Solo gestori archvio

Dimensione 640.41 kB
Formato Adobe PDF
640.41 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/53071
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 3
  • ???jsp.display-item.citation.isi??? 3
social impact