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Metrika

, Volume 79, Issue 8, pp 919–951 | Cite as

Nonparametric estimation in a mixed-effect Ornstein–Uhlenbeck model

  • Charlotte Dion
Article

Abstract

Two adaptive nonparametric procedures are proposed to estimate the density of the random effects in a mixed-effect Ornstein–Uhlenbeck model. First a kernel estimator is introduced with a new bandwidth selection method developed recently by Goldenshluger and Lepski (Ann Stat 39:1608–1632, 2011). Then, we adapt an estimator from Comte et al. (Stoch Process Appl 7:2522–2551, 2013) in the framework of small time interval of observation. More precisely, we propose an estimator that uses deconvolution tools and depends on two tuning parameters to be chosen in a data-driven way. The selection of these two parameters is achieved through a two-dimensional penalized criterion. For both adaptive estimators, risk bounds are provided in terms of integrated \(\mathbb {L}^2\)-error. The estimators are evaluated on simulations and show good results. Finally, these nonparametric estimators are applied to neuronal data and are compared with previous parametric estimations.

Keywords

Stochastic differential equations Ornstein–Uhlenbeck process Mixed-effect model Nonparametric estimation Deconvolution method Kernel estimator Neuronal data 

Mathematics Subject Classification

62G07 62M05 

Notes

Acknowledgments

The author would like to thank Fabienne Comte and Adeline Samson for very useful discussions and advice.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  1. 1.LJK, UMR CNRS 5224Université Grenoble AlpesGrenobleFrance
  2. 2.MAP5, UMR CNRS 8145Université Paris DescartesParisFrance

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