Results 31 to 40 of about 21,259 (260)

Non- and semi-parametric estimation in models with unknown smoothness [PDF]

open access: yesEconomics Letters, 2006
Abstract Many asymptotic results for kernel-based estimators were established under some smoothness assumption on density. We propose a combined estimator that could lead to the best available rate without knowledge of density smoothness. A Monte Carlo example confirms its good performance.
Zinde-Walsh, Victoria, Kotlyarova, Yulia
openaire   +2 more sources

A Note on Second Order Conditions in Extreme Value Theory: Linking General and Heavy Tail Conditions

open access: yesRevstat Statistical Journal, 2007
Second order conditions ruling the rate of convergence in any first order condition involving regular variation and assuring a unified extreme value limiting distribution function for the sequence of maximum values, linearly normalized, have appeared in
M. Isabel Fraga Alves   +3 more
doaj   +1 more source

Sparse Semi-Parametric Estimation of Harmonic Chirp Signals [PDF]

open access: yesIEEE Transactions on Signal Processing, 2016
In this paper, we present a method for estimating the parameters detailing an unknown number of linear, possibly harmonically related, chirp signals, using an iterative sparse reconstruction framework. The proposed method is initiated by a re-weighted group-sparsity approach, followed by an iterative relaxation-based refining step, to allow for high ...
Johan Sward   +3 more
openaire   +3 more sources

Semi-Parametric Probability-Weighted Moments Estimation Revisited [PDF]

open access: yesMethodology and Computing in Applied Probability, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Caeiro, Frederico Almeida Gião Gonçalves   +2 more
openaire   +3 more sources

Fuzzy Semi-Parametric Logistic Quantile Regression Model

open access: yesWasit Journal for Pure Sciences, 2023
In this paper, the fuzzy semi-parametric logistic quantile regression model was studied in the absence of special conditions in the classical regression models.
Ahmed Razzaq, Ayad H. shemaila
doaj   +1 more source

Estimation and validation of semi-parametric dynamic nonlinear models [PDF]

open access: yesIFAC Proceedings Volumes, 2003
Abstract An approach for measurement based modelling of non linear devices is proposed that extends the mixture of parametric models and nonparametric verification, that is common for LTI systems, to a class of nonlinear systems. The applicability of the method is illustrated on the baseband modelling of an radio-frequency amplifier over a wide power
Rolain, Yves   +2 more
openaire   +2 more sources

Effectiveness of Resistance Intradialytic Exercise Compared to Aerobic Intradialytic Exercise for Patients With Chronic Kidney Disease: A Randomized Controlled Clinical Trial

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Patients with chronic kidney disease undergoing hemodialysis commonly experience reduced physical function, fatigue, poor sleep quality, and impaired health‐related quality of life. Intradialytic exercise has been proposed as a non‐pharmacological strategy to improve these outcomes.
Klebson da Silva Almeida   +6 more
wiley   +1 more source

The R Package emdi for Estimating and Mapping Regionally Disaggregated Indicators

open access: yesJournal of Statistical Software, 2019
The R package emdi enables the estimation of regionally disaggregated indicators using small area estimation methods and includes tools for processing, assessing, and presenting the results.
Ann-Kristin Kreutzmann   +5 more
doaj   +1 more source

Semi-Parametric Geolocation Estimation In Nlos Environments

open access: yes, 2008
Publication in the conference proceedings of EUSIPCO, Lausanne, Switzerland ...
Ulrich Hammes   +2 more
openaire   +2 more sources

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

open access: yesFEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto   +3 more
wiley   +1 more source

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