Computing moments of first passage times to a subset of states in Markov chains This paper presents a relatively efficient and accurate method to compute the moments of first passage times to a subset of states in finite ergodic Markov chains. With the proposed method, the moment computation problem is reduced to the solution of a linear system of equations with the right-hand side governed by a novel recurrence for computing the higher-order moments. We propose using a form of the Grassmann--Taksar--Heyman (GTH) algorithm to solve these linear equations. Due to the form of the linear systems involved, the proposed method does not suffer from the drawbacks associated with GTH in a row-wise sparse implementation.
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References in zbMATH (referenced in 6 articles , 1 standard article )
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- Nemirovsky, Danil: Tensor approach to mixed high-order moments of absorbing Markov chains (2013)
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- Dayar, Tugrul; Akar, Nail: Computing moments of first passage times to a subset of states in Markov chains (2005)