No Detail Found!

On Bayesian Identification of Autoregressive Processes

Author(s)
Samir M. Shaarawy Department of Information and Scientific Services Umm Al-Qura University Makkah, Kingdom of Saudi Arabia
Emad E. A. Soliman Department of Statistics King Abdul-Aziz University Jeddah, Kingdom of Saudi Arabia (Permanent address: Faculty of Economics and Political Science, Cairo University, Eygpt.
Waseem W. Sorour Department of Statistics Zagazig University, Zagazig, Egypt
Abstract
The main objective of the current study is to handle the identification problem of autoregressive processes from the Bayesian point of view. Two Bayesian identification approaches are considered. They are referred to as the direct and the indirect approaches. The two approaches are employed to solve the Bayesian identification problem of autoregressive processes using three well known priors. These priors are the G prior, the Natural-Conjugate prior and Jeffrey's prior. The theoretical derivations related to the two Bayesian identification approaches are conducted using the above mentioned priors. Moreover, the performance of the two techniques, using each of the three priors, is investigated via comprehensive simulation studies. Simulation results show that the two techniques are adequate to solve the identification problem of autoregressive processes. The increase in the time series length leads to better performance for each technique. The use of different priors doesn't affect the numerical results.
Publication Details
Page(s) 11-28
DOI DOI not available
Published Journal: Pakistan Journal of Statistics and Operation Research, Volume: 11, Issue: 1, Year: 2015

Request the full text from PASTIC

Keywords
Autoregressive processes, Jeffreys' prior, G prior, Natural-Conjugate prior, Bayesian time series identification
0

Citations

0

Downloads

78

Views