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Approximate probabilities for runs and patterns in i.i.d. and Markov-dependent multistate trials

Part of: Distribution theory - Probability Markov processes

Published online by Cambridge University Press:  01 July 2016

James C. Fu  and
Brad C. Johnson
James C. Fu*
Affiliation:
University of Manitoba
Brad C. Johnson*
Affiliation:
University of Manitoba
*
∗ Postal address: Department of Statistics, University of Manitoba, Winnipeg, Canada R3T 2N2.
∗ Postal address: Department of Statistics, University of Manitoba, Winnipeg, Canada R3T 2N2.
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Abstract

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Let Xn(Λ) be the number of nonoverlapping occurrences of a simple pattern Λ in a sequence of independent and identically distributed (i.i.d.) multistate trials. For fixed k, the exact tail probability P{Xn (∧) < k} is difficult to compute and tends to 0 exponentially as n → ∞. In this paper we use the finite Markov chain imbedding technique and standard matrix theory results to obtain an approximation for this tail probability. The result is extended to compound patterns, Markov-dependent multistate trials, and overlapping occurrences of Λ. Numerical comparisons with Poisson and normal approximations are provided. Results indicate that the proposed approximations perform very well and do significantly better than the Poisson and normal approximations in many cases.

Keywords

Finite Markov chain imbeddingrate functionsmultistate trial

MSC classification

Primary: 60E05: Distributions
Secondary: 60J10: Markov chains (discrete-time Markov processes on discrete state spaces)
Type
General Applied Probability
Information
Advances in Applied Probability , Volume 41 , Issue 1 , March 2009 , pp. 292 - 308
Copyright
Copyright © Applied Probability Trust 2009 

Footnotes

This work was supported in part by the Natural Sciences and Engineering Research Council of Canada.

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