Results 21 to 30 of about 38,564 (256)

Nonparametric Bayesian hazard rate models based on penalized splines [PDF]

open access: yes, 2003
Extensions of the traditional Cox proportional hazard model, concerning the following features are often desirable in applications: Simultaneous nonparametric estimation of baseline hazard and usual fixed covariate effects, modelling and detection of ...
Fahrmeir, Ludwig, Hennerfeind, Andrea
core   +2 more sources

On the Approximation Properties of q−Analogue Bivariate λ-Bernstein Type Operators

open access: yesJournal of Function Spaces, 2020
In this article, we establish an extension of the bivariate generalization of the q-Bernstein type operators involving parameter λ and extension of GBS (Generalized Boolean Sum) operators of bivariate q-Bernstein type.
Edmond Aliaga, Behar Baxhaku
doaj   +1 more source

Mixed Variational Inequality Problem Involving Generalized Yosida Approximation Operator in q‐Uniformly Smooth Banach Space

open access: yesJournal of Mathematics, 2022
A mixed variational inequality problem involving generalized Yosida approximation operator is considered and studied in q‐uniformly smooth Banach space. We have shown that mixed variational inequality problem involving generalized Yosida approximation operator is equivalent to a fixed‐point equation.
Arvind Kumar Rajpoot   +3 more
openaire   +2 more sources

DOUBLE COSINE-SINE SERIES AND NIKOL'SKII CLASSES IN UNIFORM METRIC

open access: yesПроблемы анализа, 2019
In the this paper, we give neccessary and sufficient conditions for a function even with respect to the first argument but odd with respect to the second one to belong to the Nikol’skii classes defined by a mixed modulus of smoothness of a mixed ...
S. S. Volosivets
doaj   +1 more source

Low‐Rank Scale‐Invariant Tensor Product Smooths for Generalized Additive Mixed Models [PDF]

open access: yesBiometrics, 2006
SummaryA general method for constructing low‐rank tensor product smooths for use as components of generalized additive models or generalized additive mixed models is presented. A penalized regression approach is adopted in which tensor product smooths of several variables are constructed from smooths of each variable separately, these “marginal ...
openaire   +2 more sources

On Orders of Approximation Functions of Generalized Mixed Smoothness in Lorentz Spaces

open access: yesSarajevo Journal of Mathematics, 2022
We consider the Lorentz space with mixed norm of periodic functions of many variables and Nikol’skii-Besov type classes of the generalized mixed smoothness. We have obtained estimates of the best approximation by trigonometric polynomials with the harmonics from the hyperbolic crosses of functions fromNikol’skii-Besov’s type classes of the generalized ...
openaire   +3 more sources

Iteratively Reweighted Blind Deconvolution With Adaptive Regularization Parameter Estimation

open access: yesIEEE Access, 2017
In many realistic image processing applications, the acquired images often suffer from mixed noises and blurring, which greatly degrade the image quality.
Houzhang Fang   +3 more
doaj   +1 more source

A geoadditive Bayesian latent variable model for Poisson indicators [PDF]

open access: yes, 2006
We introduce a new latent variable model with count variable indicators, where usual linear parametric effects of covariates, nonparametric effects of continuous covariates and spatial effects on the continuous latent variables are modelled through a ...
Fahrmeir, Ludwig, Steinert, Sven
core   +3 more sources

A Bayesian geoadditive relative survival analysis of registry data on breast cancer mortality [PDF]

open access: yes, 2006
In this paper we develop a so called relative survival analysis, that is used to model the excess risk of a certain subpopulation relative to the natural mortality risk, i.e. the base risk that is present in the whole population.
Held, Leonhard, Hennerfeind, Andrea
core   +1 more source

A new kind of Bernstein-Schurer-Stancu-Kantorovich-type operators based on q-integers

open access: yesJournal of Inequalities and Applications, 2017
Agrawal et al. (Boll. Unione Mat. Ital. 8:169-180, 2015) introduced a Stancu-type Kantorovich modification of the operators proposed by Ren and Zeng (Bull. Korean Math. Soc.
Ruchi Chauhan   +2 more
doaj   +1 more source

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