Results 11 to 20 of about 205,425 (288)

Robust Smoothing: Smoothing Parameter Selection and Applications to Fluorescence Spectroscopy. [PDF]

open access: yesComput Stat Data Anal, 2010
Fluorescence spectroscopy has emerged in recent years as an effective way to detect cervical cancer. Investigation of the data preprocessing stage uncovered a need for a robust smoothing to extract the signal from the noise. We compare various robust smoothing methods for estimating fluorescence emission spectra and data driven methods for the ...
Lee JS, Cox DD.
europepmc   +7 more sources

Smoothing parameter and model selection for general smooth models (with discussion) [PDF]

open access: yesJournal of the American Statistical Association, 2016
This paper discusses a general framework for smoothing parameter estimation for models with regular likelihoods constructed in terms of unknown smooth functions of covariates. Gaussian random effects and parametric terms may also be present.
Pya, Natalya   +2 more
core   +8 more sources

Targeted smoothing parameter selection for estimating average causal effects [PDF]

open access: yesComputational Statistics, 2013
The non-parametric estimation of average causal effects in observational studies often relies on controlling for confounding covariates through smoothing regression methods such as kernel, splines or local polynomial regression.
de Luna, Xavier, Häggström, Jenny
core   +3 more sources

Automatic Smoothing Parameter Selection: A Survey [PDF]

open access: yesEmpirical Economics, 1988
This is a survey of recent developments in smoothing parameter selection for curve estimation. The first goal of this paper is to provide an introduction to the methods available, with discussion at both a practical and also a nontechnical level, including comparison of methods.
J S Marron
openaire   +3 more sources

Loss and risk in smoothing parameter selection [PDF]

open access: yesJournal of Nonparametric Statistics, 1994
For several years there has been debate over the relative merits of loss and risk as measures of the performance of nonparametric density estimators. In the way that this debate has dealt with risk, it has largely ignored the fact that any practical bandwidth selection rule must produce a random bandwidth. Existing theory for risk of density estimators
Birgit Grund, Peter Hall, J. S. Marron
openaire   +3 more sources

A hybrid simple exponential smoothing-barnacles mating optimization approach for parameter estimation: Enhancing COVID-19 forecasting in Malaysia [PDF]

open access: yesMethodsX
Single or simple exponential smoothing (SES) is a time series forecasting model popular among researchers due to its simplicity and ease of use. SES only requires one smoothing parameter, alpha, to control how quickly the influence of past observations ...
Azlan Abdul Aziz   +4 more
doaj   +2 more sources

The State Space Models Toolbox for MATLAB [PDF]

open access: yesJournal of Statistical Software, 2011
State Space Models (SSM) is a MATLAB toolbox for time series analysis by state space methods. The software features fully interactive construction and combination of models, with support for univariate and multivariate models, complex time-varying (dy ...
Jyh-Ying Peng, John A. D. Aston
doaj   +1 more source

HISAPS: High-order smoothing spline with automatic parameter selection and shape constraints

open access: yesSoftwareX
Obtaining a good functional fit with noisy data is difficult. This is especially true when the derivative of the fitted function is needed, which is often the case in engineering applications. One solution is to use smoothing splines.
Peter H. Broberg   +8 more
doaj   +2 more sources

Deconvolution Estimation in Measurement Error Models: The R Package decon [PDF]

open access: yesJournal of Statistical Software, 2011
Data from many scientific areas often come with measurement error. Density or distribution function estimation from contaminated data and nonparametric regression with errors in variables are two important topics in measurement error models.
Xiao-Feng Wang, Bin Wang
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

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