Results 21 to 30 of about 3,332,803 (295)

Imputation of missing values for electronic health record laboratory data

open access: yesnpj Digital Medicine, 2021
Laboratory data from Electronic Health Records (EHR) are often used in prediction models where estimation bias and model performance from missingness can be mitigated using imputation methods.
Jiang Li   +11 more
doaj   +1 more source

Statistical Prediction of Future Sports Records Based on Record Values

open access: yesStats, 2023
Point prediction of future record values based on sequences of previous lower or upper records is considered by means of the method of maximum product of spacings, where the underlying distribution is assumed to be a power function distribution and a ...
Christina Empacher   +2 more
doaj   +1 more source

Sharma-Mittal Entropy Properties on Record Values

open access: yesStatistica, 2016
In this paper we derive Sharma-Mittal entropy of record values and analyse some of its important properties. We establish some bounds for the Sharma-Mittal entropy of record values.
Jerin Paul, Poruthiyudian Yageen Thomas
doaj   +1 more source

Characterizations of distributions via record values with random exponential shifts [PDF]

open access: yesJournal of Statistical Theory and Applications (JSTA), 2014
Some new characterizations of probability distributions based on properties of record values shifted by independent exponential variables are obtained. Explicit expressions for the inverse functions of the corresponding variables are presented.
Mohammad Ahsanullah   +2 more
doaj   +1 more source

A 100-year record of North Pacific volcanism in an ice core from Eclipse icefield, Yukon Territory, Canada [PDF]

open access: yes, 2003
A record of regionally significant volcanic eruptions in the North Pacific over the last century has been developed using a glaciochemical record from Eclipse Icefield, Yukon Territory, Canada.
Germani, Mark S   +2 more
core   +3 more sources

When do we need pan-global freeze to explain ^(18)O-depleted zircons and rocks? [PDF]

open access: yes, 2011
Rocks with δ^(18)O values of less than 5‰ SMOW (Standard Mean Ocean Water) contain oxygen derived from ∼0‰ seawater or meteoric (rain or melted snow,
Bindeman, Ilya
core   +1 more source

Prediction Intervals of the Record-Values Process

open access: yesRevstat Statistical Journal, 2019
In this paper, exact prediction intervals of the record-values process are constructed. The record-values process model, may be considered as the collection of record-values with integer or non-integer indices.
Amany E. Aly   +2 more
doaj   +1 more source

Minimum Area Confidence Region for Weibull Distribution Based on Records

open access: yesRevstat Statistical Journal, 2021
Record values are commonly seen in real life applications, and many important studies on record values relate to Weibull distributions. Based on record values, we establish the minimum area confidence region for the two-parameter Weibull distribution ...
Junmei Zhou , Fen Jiang , Jin Zhang
doaj   +1 more source

A computerized Langmuir probe system [PDF]

open access: yes, 2003
For low pressure plasmas it is important to record entire single or double Langmuir probe characteristics accurately. For plasmas with a depleted high energy tail, the accuracy of the recorded ion current plays a critical role in determining the electron
D. A. Carnegie   +7 more
core   +2 more sources

On the Lindley Record Values and Associated Inference

open access: yesJournal of Statistical Theory and Applications (JSTA), 2018
In this paper, we discuss the record values arising from the Lindley distribution. We compute the means, variances and covariances of the record values.
A. Fallah   +2 more
doaj   +1 more source

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