Hostname: page-component-cd9895bd7-mkpzs Total loading time: 0 Render date: 2024-12-28T01:58:39.622Z Has data issue: false hasContentIssue false

Asymptotic normality of M-estimators in nonhomogeneous hidden Markov models

Published online by Cambridge University Press:  14 July 2016

Jens Ledet Jensen*
Affiliation:
University of Aarhus, Department of Mathematical Sciences, University of Aarhus, Ny Munkegade Building 1530, DK-8000 Aarhus C, Denmark. Email address: jlj@imf.au.dk
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Results on asymptotic normality for the maximum likelihood estimate in hidden Markov models are extended in two directions. The stationarity assumption is relaxed, which allows for a covariate process influencing the hidden Markov process. Furthermore, a class of estimating equations is considered instead of the maximum likelihood estimate. The basic ingredients are mixing properties of the process and a general central limit theorem for weakly dependent variables.

Type
Part 6. Statistics
Copyright
Copyright © Applied Probability Trust 2011 

References

[1] Augustin, N. H., McNicol, J. and Marriott, C. A., (2006). Using the truncated auto-Poisson model for spatially correlated counts of vegetation. J. Agricult. Biol. Environ. Statist. 11, 123.CrossRefGoogle Scholar
[2] Baum, L. E. and Petrie, T., (1966). Statistical inference for probabilistic functions of finite state Markov chains. Ann. Math. Statist. 37, 15541563.Google Scholar
[3] Bickel, P. J., Ritov, Y. and Rydén, T., (1998). Asymptotic normality of the maximum-likelihood estimator for general hidden Markov models. Ann. Statist. 26, 16141635.CrossRefGoogle Scholar
[4] Doob, J. L., (1953). Stochastic Processes. John Wiley, New York.Google Scholar
[5] Douc, R., Moulines, É. and Rydén, T., (2004). Asymptotic properties of the maximum likelihood estimator in autoregressive models with Markov regime. Ann. Statist. 32, 22542304.Google Scholar
[6] Götze, F. and Hipp, C., (1983). Asymptotic expansions for sums of weakly dependent random vectors. Z. Wahrscheinlichkeitsth. 64, 211239.Google Scholar
[7] Hansen, J. V. and Jensen, J. L., (2008). Asymptotics for estimating equations in hidden Markov models. Thiele Res. Rep., No. 7, Department of Mathematical Sciences, University of Aarhus.Google Scholar
[8] Ibragimov, I. A. and Linnik, Y. V., (1971). Independent and Stationary Sequences of Random Variables. Wolters-Nordhoff, Groningen.Google Scholar
[9] Jensen, J. L., (1986). A note on the work of Götze and Hipp concerning asymptotic expansions for sums of weakly dependent random vectors. Memoir, No. 10, Department of Theoretical Statistics, University of Aarhus.Google Scholar
[10] Jensen, J. L., (1988). A note on the work of Götze and Hipp concerning asymptotic expansions for sums of weakly dependent random vectors. In Proc. 4th Prague Symp. Asymptotic Statistics, eds Mandel, P. and Huskova, M., Charles University, Prague, pp. 295303.Google Scholar
[11] Jensen, J. L., (1993). A note on asymptotic expansions for sums over a weakly dependent random field with application to the Poisson and Strauss processes. Ann. Inst. Statist. Math. 45, 353360.Google Scholar
[12] Jensen, J. L., (2005). Context dependent DNA evolutionary models. Res. Rep., No. 458, Department of Mathematical Sciences, University of Aarhus.Google Scholar
[13] Jensen, J. L. and Petersen, N. V., (1999). Asymptotic normality of the maximum likelihood estimator in state space models. Ann. Statist. 27, 514535.CrossRefGoogle Scholar
[14] Lindvall, T., (1992). Lectures on the Coupling Method. John Wiley, New York.Google Scholar
[15] Louis, T. A., (1982). Finding the observed information matrix when using the EM algorithm. J. R. Statist. Soc. Ser. B 44, 226233.Google Scholar
[16] Möller, J., McCullagh, P. and Rubak, E., (2008). Statistical inference for a class of multivariate negative binomial distributions. Unpublished manuscript, Department of Mathematical Sciences, Aalborg University.Google Scholar
[17] Sweeting, T. J., (1980). Uniform asymptotic normality of the maximum likelihood estimator. Ann. Statist. 8, 13751381.Google Scholar