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An Improved Diverge...
An Improved Divergence Information Criterion for the Determination of the Order of an AR Process
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- Mantalos, Panagiotis, 1956- (författare)
- Lund University,Lunds universitet,Statistiska institutionen,Ekonomihögskolan,Department of Statistics,Lund University School of Economics and Management, LUSEM
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- Mattheou, K. (författare)
- Department of Mathematics and Statistics , University of Cyprus , Nicosia, Cyprus
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- Karagrigoriou, A. (författare)
- Department of Mathematics and Statistics , University of Cyprus , Nicosia, Cyprus
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(creator_code:org_t)
- Taylor & Francis, 2010
- 2010
- Engelska.
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Ingår i: Communications in statistics. Simulation and computation. - : Taylor & Francis. - 0361-0918 .- 1532-4141. ; 39:5, s. 865-879
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Abstract
Ämnesord
Stäng
- In this article we propose a modification of the recently introduced divergence information criterion (DIC, Mattheou et al., 2009) for the determination of the order of an autoregressive process and show that it is an asymptotically unbiased estimator of the expected overall discrepancy, a nonnegative quantity that measures the distance between the true unknown model and a fitted approximating model. Further, we use Monte Carlo methods and various data generating processes for small, medium, and large sample sizes in order to explore the capabilities of the new criterion in selecting the optimal order in autoregressive processes and in general in a time series context. The new criterion shows remarkably good results by choosing the correct model more frequently than traditional information criteria.
Ämnesord
- NATURVETENSKAP -- Matematik -- Sannolikhetsteori och statistik (hsv//swe)
- NATURAL SCIENCES -- Mathematics -- Probability Theory and Statistics (hsv//eng)
Nyckelord
- AR process
- Information criterion
- Measure of divergence
- Model selection
- 62M10
- 62F07
- 91B84
- 94A15
- Statistik
- Statistics
- Model
- Measure of divergence
- AR process
- Information criterion
- selection
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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