Large deviations for random dynamical systems and applications to hidden Markov models

Shulan Hu and Liming Wu

Stochastic Processes and their Applications, 2011, vol. 121, issue 1, 61-90

Abstract: In this paper, we prove the large deviation principle (LDP) for the occupation measures of not necessarily irreducible random dynamical systems driven by Markov processes. The LDP for not necessarily irreducible dynamical systems driven by i.i.d. sequence is derived. As a further application we establish the LDP for extended hidden Markov models, filling a gap in the literature, and obtain large deviation estimations for the log-likelihood process and maximum likelihood estimator of hidden Markov models.

Keywords: Large; deviation; Random; dynamical; systems; Hidden; Markov; models; Maximum; likelihood; estimator (search for similar items in EconPapers)
Date: 2011
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