Abstract
We study the probability of occurrence of \(\delta \)-records in a model with linear trend. While this probability has been studied in the iid case, the existence of a trend makes its analysis much more involved. Asymptotic properties of this probability have been studied in the literature when the number of observations is large. However, no approximations are known when the number of observations is small. We propose a first order approximation as a function of both the values of \(\delta \) and the trend. We assess our results via Montecarlo simulations finding that the approximations are accurate for a small-moderate number of observations.
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Acknowledgements
This research was supported by ACE210010, FB210005 basal funds from ANID-Chile and Grant MCIN/ AEI/10.13039/501100011033. ML, RG, FJL and GS are members of the research group Modelos Estocásticos of DGA.
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Lafuente, M., Ejea, D., Gouet, R., López, F.J., Sanz, G. (2023). Approximations of \(\delta \)-Record Probabilities in i.i.d. and Trend Models. In: Balakrishnan, N., Gil, M.Á., Martín, N., Morales, D., Pardo, M.d.C. (eds) Trends in Mathematical, Information and Data Sciences. Studies in Systems, Decision and Control, vol 445. Springer, Cham. https://doi.org/10.1007/978-3-031-04137-2_8
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