Results 51 to 60 of about 120,097 (295)

Regularized nonparametric Volterra kernel estimation [PDF]

open access: yesAutomatica, 2017
In this paper, the regularization approach introduced recently for nonparametric estimation of linear systems is extended to the estimation of nonlinear systems modelled as Volterra series. The kernels of order higher than one, representing higher dimensional impulse responses in the series, are considered to be realizations of multidimensional ...
Georgios Birpoutsoukis   +3 more
openaire   +5 more sources

Serum Uric Acid Levels in Older Adults: Associations With Clinical Outcomes and Implications for Reference Intervals in Those Aged 70 Years and Over

open access: yesArthritis Care &Research, EarlyView.
Objective Reports have linked both high and low serum uric acid (SUA) levels to adverse health outcomes. This study aimed to establish a reference interval for SUA in older adults and assessed its association with clinically relevant outcomes in relatively healthy, community‐dwelling individuals aged ≥70 years old.
Amanda J. Rickard   +15 more
wiley   +1 more source

ESTIMATOR KERNEL DALAM MODEL REGRESI NONPARAMETRIK

open access: yesJurnal Matematika, 2012
Analisis regresi nonparametrik merupakan metode pendugaan kurva regresi yang digunakan jika tidak ada informasi sebelumnya te,ntang benttrk kurva regresi atau tidak terikat pada asumsi bentuk fungsi tertentu.
I Komang Gede Sukarsa   +1 more
doaj   +1 more source

Global Polynomial Kernel Hazard Estimation [PDF]

open access: yesSSRN Electronic Journal, 2000
This paper introduces a new bias reducing method for kernel hazard estimation. The method is called global polynomial adjustment (GPA). It is a global correction which is applicable to any kernel hazard estimator. The estimator works well from a theoretical point of view as it symptotically reduces bias with unchanged variance.
Nielsen, Jens Perch, Tanggaard, Carsten
openaire   +3 more sources

The Gasser-Müller estimator

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2004
Kernel smoothing provides a simple way for finding structure in data. The idea of the kernel smoothing can be applied to a simple fixed design regression model and a random design regression model.
Jitka Poměnková
doaj   +1 more source

Multivariate kernel density estimation with a parametric support [PDF]

open access: yesOpuscula Mathematica, 2009
We consider kernel density estimation in the multivariate case, focusing on the use of some elements of parametric estimation. We present a two-step method, based on a modification of the EM algorithm and the generalized kernel density estimator, and ...
Jolanta Jarnicka
doaj   +1 more source

Estimation of the Conditional Hazard Function with a Recursive Kernel from Censored Functional Ergodic Data

open access: yesComputer Sciences & Mathematics Forum, 2023
In this paper, we propose a non-parametric estimator of the conditional hazard function weighted on the recursive kernel method given an explanatory variable taking values in a semi-metric space when the scalar response is censored.
Hadjer Kebir, Boubaker Mechab
doaj   +1 more source

Kernel Estimation of Relative Risk [PDF]

open access: yesBernoulli, 1995
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kelsall, Julia E., Diggle, Peter J.
openaire   +3 more sources

Hopfield Neural Networks for Online Constrained Parameter Estimation With Time‐Varying Dynamics and Disturbances

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
This paper proposes two projector‐based Hopfield neural network (HNN) estimators for online, constrained parameter estimation under time‐varying data, additive disturbances, and slowly drifting physical parameters. The first is a constraint‐aware HNN that enforces linear equalities and inequalities (via slack neurons) and continuously tracks the ...
Miguel Pedro Silva
wiley   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

open access: yesAdvanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt   +8 more
wiley   +1 more source

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