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JOURNALS // Computer Research and Modeling // Archive

Computer Research and Modeling, 2016 Volume 8, Issue 2, Pages 323–332 (Mi crm147)

Parameter estimation methods for random point fields with localinteractions

P. Ya. Grabarnik

Institute of Physical-Chemical and Biological Problems in Soil Science of RAS, Institutskaya st., Pushchino, Moscow Region, 142290, Russia

Abstract: The paper gives an overview of methods for estimating the parameters of random point fields withlocal interaction between points. It is shown that the conventional method of the maximum pseudolikelihood isa special case of the family of estimation methods based on the use of the auxiliary Markov process, invariantmeasure of which is the Gibbs point field with parameters to be estimated. A generalization of this method,resulting in estimating equation that can not be obtained by the the universal Takacs-Fiksel method, is proposed.It is shown by computer simulations that the new method enables to obtain estimates which have better qualitythan those by a widely used method of the maximum pseudolikelihood.

Keywords: Gibbs point process, estimating function, pseudolikelihood, parametric inference.

UDC: 519.8

Received: 18.02.2016
Revised: 25.03.2016

DOI: 10.20537/2076-7633-2016-8-2-323-332



© Steklov Math. Inst. of RAS, 2024