Results 131 to 140 of about 58,855 (160)

Time-dependent prognostic accuracy measures for recurrent event data. [PDF]

open access: yesBiometrics
Dey R   +3 more
europepmc   +1 more source

Evaluating the Test-Negative Design for COVID-19 Vaccine Effectiveness Using Randomized Trial Data: A Secondary Cross-Protocol Analysis of 5 Randomized Clinical Trials.

open access: yesJAMA Netw Open
Andrews LIB   +30 more
europepmc   +1 more source

Semiparametric Density Deconvolution

Scandinavian Journal of Statistics, 2010
The authors consider density \(f\) estimation by i.i.d. observations with the density \[ g(x)=f*\pi(x)=\int f(x-z)\pi(z)dz, \] where \(\pi\) is a known density of an independent measurement error. The idea is to use a parametric working model \(f(x\,|\,\vartheta)=w(x\,|\,\vartheta)g(x)\), where \(w(x\,|\,\vartheta)\), \(\vartheta\in\Theta\), is a model
Hazelton, M.L., Turlach, B.A.
openaire   +1 more source

Semiparametric efficiency bounds

Journal of Applied Econometrics, 1990
AbstractSemiparametric models are those where the functional form of some components is unknown. Efficiency bounds are of fundamental importance for such models. They provide a guide to estimation methods and give an asymptotic efficiency standard.
openaire   +1 more source

SEMIPARAMETRIC TIME SERIES REGRESSION

Journal of Time Series Analysis, 1994
Abstract.Let (Xi,Yi),i= 0, pL 1,… denote a bivariate stationary time series withXibeing Rd‐valued andYibeing real‐valued. We consider the regression modelYi=θ(Xi) +Zi, where θ(·) is an unknown function and Ziis an autoregressive process. Given a realization of lengthn, we examine the problem of estimating the nonparametric function θ(·) and the ...
Truong, Young K., Stone, Charles J.
openaire   +1 more source

Semiparametric transition rate models

2019
The most widely applied semiparametric model is the proportional hazards model proposed by D. R. Cox, or, as stated in the literature, the Cox model. The Cox model has been used widely, although the proportionality assumption restricts its range of possible empirical applications. This chapter explains the partial likelihood estimation of the model. It
Hans-Peter Blossfeld   +3 more
openaire   +1 more source

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