Results 11 to 20 of about 501,333 (190)

Nadaraya–Watson estimator for I.I.D. paths of diffusion processes [PDF]

open access: yesScandinavian Journal of Statistics, 2022
AbstractThis paper deals with a nonparametric Nadaraya–Watson (NW) estimator of the drift function computed from independent continuous observations of a diffusion process. Risk bounds on the estimator and its discrete‐time approximation are established.
Marie, Nicolas, Rosier, Amélie
openaire   +5 more sources

PAC learning using Nadaraya-Watson estimator based on orthonormal systems [PDF]

open access: yes, 1997
Regression or function classes of Euclidean type with compact support and certain smoothness properties are shown to be PAC learnable by the Nadaraya-Watson estimator based on complete orthonormal systems. While requiring more smoothness properties than typical PAC formulations, this estimator is computationally efficient, easy to implement, and known ...
Hongzhu Qiao   +2 more
openaire   +4 more sources

Spatio-Functional Nadaraya–Watson Estimator of the Expectile Shortfall Regression

open access: yesAxioms
The main aim of this paper is to consider a new risk metric that permits taking into account the spatial interactions of data. The considered risk metric explores the spatial tail-expectation of the data.
Mohammed B. Alamari   +3 more
doaj   +2 more sources

Nadaraya-Watson type estimator of the transition density function for diffusion processes

open access: yesAnnals of the Institute of Statistical Mathematics
24 pages, 4 ...
Marie, Nicolas, Sacko, Ousmane
openaire   +3 more sources

Local Linear Regression Estimator on the Boundary Correction in Nonparametric Regression Estimation

open access: yesJournal of Statistical Theory and Applications (JSTA), 2020
The precision and accuracy of any estimation can inform one whether to use or not to use the estimated values. It is the crux of the matter to many if not all statisticians.
Langat Reuben Cheruiyot
doaj   +1 more source

Smoothing parameter selection in Nadaraya-Watson kernel nonparametric regression using nature-inspired algorithm optimization [PDF]

open access: yesالمجلة العراقية للعلوم الاحصائية, 2020
In the context of Nadaraya-Watson kernel nonparametric regression, the curve estimation is fully depending on the smoothing parameter. At this point, the nature-inspired algorithms can be used as an alternative tool to find the optimal selection. In this
Zinah Basheer, Zakariya Algamal
doaj   +1 more source

A Note on the Unconditional Bias of the Nadaraya-Watson Regression Estimator [PDF]

open access: yes, 2018
In this note we investigate the order of the unconditional bias of the Nadarya-Watson (Nadaraya, 1964; Watson, 1964) estimator for a multivariate regression. Surprisingly, previous attempts in establishing this result are either imprecise and technically
Pelrine, Kellin
core   +8 more sources

Estimation in Semi-Varying Coefficient Heteroscedastic Instrumental Variable Models with Missing Responses

open access: yesMathematics, 2023
This paper studies the estimation problem for semi-varying coefficient heteroscedastic instrumental variable models with missing responses. First, we propose the adjusted estimators for unknown parameters and smooth functional coefficients utilizing the ...
Weiwei Zhang, Jingxuan Luo, Shengyun Ma
doaj   +1 more source

Nadaraya-Watson estimator for sensor fusion problems [PDF]

open access: yesProceedings of International Conference on Robotics and Automation, 2002
In a system of N sensors, the sensor S/sub j/, j=1,2...,N, outputs Y/sup j/spl isin//[0, 1], according to an unknown probability density p/sub j/(Y/sup j|/X), corresponding to input X/spl isin/[0, 1]. A training n-sample (X/sub 1/,Y/sub 1/), (X/sub 2/,Y/sub 2/), ..., (X/sub n/,Y/sub n/) is given where Y/sub i/=(Y/sub i//sup 1,/Y/sub i//sup 2,/...,Y/sub
openaire   +1 more source

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