Results 11 to 20 of about 1,761 (95)

Application of one-step method to parameter estimation in ODE models. [PDF]

open access: yesStat Neerl, 2018
In this paper, we study application of Le Cam's one‐step method to parameter estimation in ordinary differential equation models. This computationally simple technique can serve as an alternative to numerical evaluation of the popular non‐linear least squares estimator, which typically requires the use of a multistep iterative algorithm and repetitive ...
Dattner I, Gugushvili S.
europepmc   +2 more sources

Large deviations for exchangeable observations with applications

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2004, Issue 55, Page 2947-2958, 2004., 2004
We first prove some large deviation results for a mixture of i.i.d. random variables. Compared with most of the known results in the literature, our results are built on relaxing some restrictive conditions that may not be easy to be checked in certain typical cases.
Jinwen Chen
wiley   +1 more source

On certain transformations of Archimedean copulas: Application to the non-parametric estimation of their generators

open access: yesDependence Modeling, 2013
We study the impact of certain transformations within the class of Archimedean copulas. We give some admissibility conditions for these transformations, and define some equivalence classes for both transformations and generators of Archimedean copulas ...
Di Bernardino Elena, Rullière Didier
doaj   +1 more source

A survey of limit laws for bootstrapped sums

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2003, Issue 45, Page 2835-2861, 2003., 2003
Concentrating mainly on independent and identically distributed (i.i.d.) real‐valued parent sequences, we give an overview of first‐order limit theorems available for bootstrapped sample sums for Efron′s bootstrap. As a light unifying theme, we expose by elementary means the relationship between corresponding conditional and unconditional bootstrap ...
Sándor Csörgő, Andrew Rosalsky
wiley   +1 more source

Smooth backfitting in additive inverse regression [PDF]

open access: yes, 2013
We consider the problem of estimating an additive regression function in an inverse regres- sion model with a convolution type operator. A smooth backfitting procedure is developed and asymptotic normality of the resulting estimator is established ...
Bissantz, Nicolai   +2 more
core   +3 more sources

On the eigenvalues of the spatial sign covariance matrix in more than two dimensions [PDF]

open access: yes, 2016
Acknowledgments Alexander Dürre was supported in part by the Collaborative Research Grant 823 of the German Research Foundation. David E. Tyler was supported in part by the National Science Foundation grant DMS-1407751. A visit of Daniel Vogel to David E.
Dürre, Alexander   +2 more
core   +2 more sources

Empirical likelihood for quantile regression models with response data missing at random

open access: yesOpen Mathematics, 2017
This paper studies quantile linear regression models with response data missing at random. A quantile empirical-likelihood-based method is proposed firstly to study a quantile linear regression model with response data missing at random.
Luo S., Pang Shuxia
doaj   +1 more source

Quadratic functional estimation in inverse problems [PDF]

open access: yes, 2009
We consider in this paper a Gaussian sequence model of observations $Y_i$, $i\geq 1$ having mean (or signal) $\theta_i$ and variance $\sigma_i$ which is growing polynomially like $i^\gamma$, $\gamma >0$.
Butucea, Cristina, Méziani, Katia
core   +5 more sources

Nonparametric Bayesian inference for multidimensional compound Poisson processes [PDF]

open access: yes, 2015
Given a sample from a discretely observed multidimensional compound Poisson process, we study the problem of nonparametric estimation of its jump size density $r_0$ and intensity $\lambda_0$.
Gugushvili, Shota   +2 more
core   +3 more sources

Variable importance for causal forests: breaking down the heterogeneity of treatment effects

open access: yesJournal of Causal Inference
Causal random forests provide efficient estimates of heterogeneous treatment effects. However, forest algorithms are also well-known for their black-box nature, and therefore, do not characterize how input variables are involved in treatment effect ...
Bénard Clément, Josse Julie
doaj   +1 more source

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