Results 1 to 10 of about 119 (60)

Asymptotic Properties of the Sequential Empirical ROC, PPV and NPV Curves Under Case-Control Sampling. [PDF]

open access: yesAnn Stat, 2011
The receiver operating characteristic (ROC) curve, the positive predictive value (PPV) curve and the negative predictive value (NPV) curve are three measures of performance for a continuous diagnostic biomarker.
Koopmeiners JS, Feng Z.
europepmc   +2 more sources

Sequential Interval Estimation of a Location Parameter with Fixed Width in the Nonregular Case∗ [PDF]

open access: yesSequential Analysis, 2007
For a location-scale parameter family of distributions with a finite support, a sequential confidence interval with a fixed width is obtained for the location parameter, and its asymptotic consistency and efficiency are shown.
Ken-ichi Koike
exaly   +2 more sources

Boundary crossing Random Walks, clinical trials and multinomial sequential estimation [PDF]

open access: yes, 2011
A sufficient condition for the uniqueness of multinomial sequential unbiased estimators is provided generalizing a classical result for binomial samples.
Alessandro Rubba   +8 more
core   +2 more sources

Modelo en series de tiempo para la tasa de penetración de un pozo de petróleo de referencia: Caso Puerto Boyacá - Colombia

open access: yesIngeniería y Ciencia, 2015
En este trabajo se identificó un modelo en series de tiempo para el control de la tasa de penetración (ROP) en un pozo de referencia denominado V∗∗∗ que pertenece al campo en desarrollo VEL que está ubicado en la cuenca del Valle del Magdalena Medio (VMM)
Henry Daniel Hernández Martínez   +1 more
doaj   +1 more source

Estimation of Gini Index within Pre-Specied Error Bound [PDF]

open access: yes, 2015
Gini index is a widely used measure of economic inequality. This article develops a general theory for constructing a confidence interval for Gini index with a specified confidence coefficient and a specified width.
Chattopadhyay, Bhargab   +1 more
core   +3 more sources

Sparse Conformal Predictors [PDF]

open access: yes, 2009
Conformal predictors, introduced by Vovk et al. (2005), serve to build prediction intervals by exploiting a notion of conformity of the new data point with previously observed data.
Hebiri, Mohamed
core   +5 more sources

Sequential Interval Estimation of a Location Parameter with the Fixed Width in the Uniform Distribution with an Unknown Scale Parameter [PDF]

open access: yes, 2005
We consider a sequential interval estimation with fixed width of a location parameter θ of a sequence of uniform random variables with unknown scale ξ. A stopping rule is proposed, and its asymptotic properties are investigated. Numerical evaluations are
Akahira Masafumi   +3 more
core   +1 more source

Rare Event Simulation and Splitting for Discontinuous Random Variables [PDF]

open access: yes, 2015
Multilevel Splitting methods, also called Sequential Monte-Carlo or \emph{Subset Simulation}, are widely used methods for estimating extreme probabilities of the form $P[S(\mathbf{U}) > q]$ where $S$ is a deterministic real-valued function and $\mathbf{U}
Walter, Clément
core   +2 more sources

Estimation of location parameter within pre-specified error bound with second-order efficient two-stage procedure [PDF]

open access: yes, 2021
This paper develops a general approach for constructing a confidence interval for a parameter of interest with a specified confidence coefficient and a specified width. This is done assuming known a positive lower bound for the unknown nuisance parameter
Banerjee, Swarnali   +1 more
core   +3 more sources

Sequential Point Estimation of the Location Parameter in the Location-Scale Family of Non-Regular Distributions [PDF]

open access: yes, 2007
In this paper, we consider sequential estimation of the location parameter based on the midrange in the presence of an unknown scale parameter when the underlying distribution has a bounded support.
Koike Ken-ichi, 小池 健一
core   +1 more source

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