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Estimation of integrals with respect to infinite measures using regenerative sequences

Published online by Cambridge University Press:  30 March 2016

Krishna B. Athreya*
Affiliation:
Iowa State University
Vivekananda Roy*
Affiliation:
Iowa State University
*
Postal address: Department of Mathematics, Iowa State University, Ames, IA 50011, USA.
∗∗Postal address: Department of Statistics, Iowa State University, Ames, IA 50011, USA. Email address: [email protected]
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Abstract

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Let f be an integrable function on an infinite measure space (S, , π). We show that if a regenerative sequence {Xn}n≥0 with canonical measure π could be generated then a consistent estimator of λ ≡ ∫Sf dπ can be produced. We further show that under appropriate second moment conditions, a confidence interval for λ can also be derived. This is illustrated with estimating countable sums and integrals with respect to absolutely continuous measures on ℝd using a simple symmetric random walk on ℤ.

Type
Research Papers
Copyright
Copyright © Applied Probability Trust 2015 

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