Parameters Estimation in Non-Negative Integer-Valued Time Series: Approach Based on Probability Generating Functions

This manuscript deals with a parameter estimation of a non-negative integer-valued (NNIV) time series based on the so-called probability generating function (PGF) method. The theoretical background of the PGF estimation technique for a very general, stationary class of NNIV time series is described,...

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Main Authors: Vladica Stojanović, Eugen Ljajko, Marina Tošić
Format: Article
Language:English
Published: MDPI AG 2023-01-01
Series:Axioms
Subjects:
Online Access:https://www.mdpi.com/2075-1680/12/2/112
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author Vladica Stojanović
Eugen Ljajko
Marina Tošić
author_facet Vladica Stojanović
Eugen Ljajko
Marina Tošić
author_sort Vladica Stojanović
collection DOAJ
description This manuscript deals with a parameter estimation of a non-negative integer-valued (NNIV) time series based on the so-called probability generating function (PGF) method. The theoretical background of the PGF estimation technique for a very general, stationary class of NNIV time series is described, as well as the asymptotic properties of the obtained estimates. After that, a particular emphasis is given to PGF estimators of independent identical distributed (IID) and integer-valued non-negative autoregressive (INAR) series. A Monte Carlo study of the thus obtained PGF estimates, based on a numerical integration of the appropriate objective function, is also presented. For this purpose, numerical quadrature formulas were computed using Gegenbauer orthogonal polynomials. Finally, the application of the PGF estimators in the dynamic analysis of some actual data is given.
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spelling doaj.art-ee35d7ec7cd44f48811b595ba76f287b2023-11-16T19:05:25ZengMDPI AGAxioms2075-16802023-01-0112211210.3390/axioms12020112Parameters Estimation in Non-Negative Integer-Valued Time Series: Approach Based on Probability Generating FunctionsVladica Stojanović0Eugen Ljajko1Marina Tošić2Department of Informatics & Computer Sciences, University of Criminal Investigation and Police Studies, 11000 Belgrade, SerbiaDepartment of Mathematics, Faculty of Sciences & Mathematics, University of Priština in Kosovska Mitrovica, 38220 Kosovska Mitrovica, SerbiaDepartment of Mathematics, Faculty of Sciences & Mathematics, University of Priština in Kosovska Mitrovica, 38220 Kosovska Mitrovica, SerbiaThis manuscript deals with a parameter estimation of a non-negative integer-valued (NNIV) time series based on the so-called probability generating function (PGF) method. The theoretical background of the PGF estimation technique for a very general, stationary class of NNIV time series is described, as well as the asymptotic properties of the obtained estimates. After that, a particular emphasis is given to PGF estimators of independent identical distributed (IID) and integer-valued non-negative autoregressive (INAR) series. A Monte Carlo study of the thus obtained PGF estimates, based on a numerical integration of the appropriate objective function, is also presented. For this purpose, numerical quadrature formulas were computed using Gegenbauer orthogonal polynomials. Finally, the application of the PGF estimators in the dynamic analysis of some actual data is given.https://www.mdpi.com/2075-1680/12/2/112integer-valued time seriesparameter estimationprobability generating functionsasymptotic propertiessimulationnumerical integration
spellingShingle Vladica Stojanović
Eugen Ljajko
Marina Tošić
Parameters Estimation in Non-Negative Integer-Valued Time Series: Approach Based on Probability Generating Functions
Axioms
integer-valued time series
parameter estimation
probability generating functions
asymptotic properties
simulation
numerical integration
title Parameters Estimation in Non-Negative Integer-Valued Time Series: Approach Based on Probability Generating Functions
title_full Parameters Estimation in Non-Negative Integer-Valued Time Series: Approach Based on Probability Generating Functions
title_fullStr Parameters Estimation in Non-Negative Integer-Valued Time Series: Approach Based on Probability Generating Functions
title_full_unstemmed Parameters Estimation in Non-Negative Integer-Valued Time Series: Approach Based on Probability Generating Functions
title_short Parameters Estimation in Non-Negative Integer-Valued Time Series: Approach Based on Probability Generating Functions
title_sort parameters estimation in non negative integer valued time series approach based on probability generating functions
topic integer-valued time series
parameter estimation
probability generating functions
asymptotic properties
simulation
numerical integration
url https://www.mdpi.com/2075-1680/12/2/112
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AT eugenljajko parametersestimationinnonnegativeintegervaluedtimeseriesapproachbasedonprobabilitygeneratingfunctions
AT marinatosic parametersestimationinnonnegativeintegervaluedtimeseriesapproachbasedonprobabilitygeneratingfunctions