Information criteria for inhomogeneous spatial point processes
نویسندگان
چکیده
The theoretical foundation for a number of model selection criteria is established in the context inhomogeneous point processes and under various asymptotic settings: infill, increasing domain combinations these. For Poisson we consider Akaike's information criterion Bayesian criterion, particular identify process analogue ‘sample size’ needed criterion. Considering general derive new composite likelihood selecting regression intensity function. proposed are evaluated using simulations cluster processes.
منابع مشابه
Variance Estimation for Statistics Computed from Inhomogeneous Spatial Point Processes
This paper introduces a new approach to estimate the variance of statistics that are computed from an inhomogeneous spatial point process. The proposed approach is based on the assumption that the observed point process can be thinned to be a second-order stationary point process, where the thinning probability depends only on the first-order intensity function of the (unthinned) original proce...
متن کاملFast Block Variance Estimation Procedures for Inhomogeneous Spatial Point Processes
We introduce two new variance estimation procedures by using non-overlapping and overlapping blocks, respectively. The non-overlapping block (NOB) estimator can be viewed as the limit of the thinned block bootstrap (TBB) estimator recently proposed in Guan and Loh (2007), by letting the number of thinned processes and bootstrap samples therein both increase to infinity. Compared to the latter, ...
متن کاملTwo-step estimation for inhomogeneous spatial point processes
This paper is concerned with parameter estimation for inhomogeneous spatial point processes with a regression model for the intensity function and tractable second order properties (K-function). Regression parameters are estimated using a Poisson likelihood score estimating function and in a second step minimum contrast estimation is applied for the residual clustering parameters. Asymptotic no...
متن کاملBayesian semiparametric intensity estimation for inhomogeneous spatial point processes.
In this work we propose a fully Bayesian semiparametric method to estimate the intensity of an inhomogeneous spatial point process. The basic idea is to first convert intensity estimation into a Poisson regression setting via binning data points on a regular grid, and then model the log intensity semiparametrically using an adaptive version of Gaussian Markov random fields to smooth the corresp...
متن کاملSummary statistics for inhomogeneous marked point processes
We propose new summary statistics for intensity-reweighted moment stationary marked point processes with particular emphasis on discrete marks. The new statistics are based on the n-point correlation functions and reduce to cross J and D-functions when stationarity holds. We explore the relationships between the various functions and discuss their explicit forms under specific model assumptions...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Australian & New Zealand Journal of Statistics
سال: 2021
ISSN: ['1369-1473', '1467-842X']
DOI: https://doi.org/10.1111/anzs.12327