Results 41 to 50 of about 936 (117)

Local polynomial regression for circular predictors

open access: yes, 2009
We consider local smoothing of datasets where the design space is the d-dimensional (d >= 1) torus and the response variable is real-valued. Our purpose is to extend least squares local polynomial fitting to this situation.
Agnese Panzera   +12 more
core   +4 more sources

Nonparametric estimation in a semimartingale regression model. Part 2. Robust asymptotic efficiency [PDF]

open access: yes, 2009
In this paper we prove the asymptotic efficiency of the model selection procedure proposed by the authors in the first part. To this end we introduce the robust risk as the least upper bound of the quadratical risk over a broad class of observation ...
Konev, Victor   +1 more
core   +3 more sources

Pemodelan Jumlah Rumah Tangga Sangat Miskin di Jawa Timur Menggunakan Regresi Nonparametrik B-Spline

open access: yesMajalah Ilmiah Matematika dan Statistika
Indonesia is a developing country that continues to experience poverty. East Java is one of the provinces that ranks 3rd as the province with the largest number of poor people in Indonesia.
Putroue Keumala Intan
doaj   +1 more source

Projection Estimates of Constrained Functional Parameters [PDF]

open access: yes
AMS classifications: 62G05; 62G07; 62G08; 62G20; 62G32;estimation;convex function;extreme value copula;Pickands dependence function;projection;shape constraint;support function;tangent ...
Fils-Villetard, A.   +2 more
core   +1 more source

Smoothing-inspired lack-of-fit tests based on ranks

open access: yes, 2008
A rank-based test of the null hypothesis that a regressor has no effect on a response variable is proposed and analyzed. This test is identical in structure to the order selection test but with the raw data replaced by ranks. The test is nonparametric in
Hart, Jeffrey D.
core   +1 more source

Modeling factors affecting poverty in Nusa Tenggara using the multivariate adaptive regression spline (MARS) method

open access: yesMajalah Ilmiah Matematika dan Statistika
Poverty is still a fundamental problem in the economy of various regions or developing countries, including Indonesia. The Nusa Tenggara Islands are one of the regions in Central Indonesia, where East Nusa Tenggara Province is in 3rd place with 20.44 ...
Mulyasrihuda Arizal   +2 more
doaj   +1 more source

Adaptive testing on a regression function at a point

open access: yes, 2015
We consider the problem of inference on a regression function at a point when the entire function satisfies a sign or shape restriction under the null. We propose a test that achieves the optimal minimax rate adaptively over a range of H\"{o}lder classes,
Armstrong, Timothy
core   +1 more source

Emulation of multivariate simulators using thin-plate splines with application to atmospheric dispersion

open access: yes, 2016
It is often desirable to build a statistical emulator of a complex computer simulator in order to perform analysis which would otherwise be computationally infeasible.
Jones A. R., Kennedy M. C., Smith J.
core   +2 more sources

Consistency of the recursive nonparametric regression estimation for dependent functional data

open access: yes, 2013
We consider the recursive estimation of a regression functional where the explanatory variables take values in some functional space. We prove the almost sure convergence of such estimates for dependent functional data.
Amiri, Aboubacar, Thiam, Baba
core   +1 more source

Quantile regression with varying coefficients

open access: yes, 2007
Quantile regression provides a framework for modeling statistical quantities of interest other than the conditional mean. The regression methodology is well developed for linear models, but less so for nonparametric models.
Kim, Mi-Ok
core   +1 more source

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