Results 31 to 40 of about 22,682,382 (285)

A jackknife variance estimator for self-weighted two-stage samples

open access: yes, 2013
Self-weighted two-stage sampling designs are popular in practice as they simplify field-work. It is common in practice to compute variance estimates only from the first sampling stage, neglecting the second stage.
Escobar, E.L., Berger, Y.G.
core   +1 more source

Remaining Useful Life Prediction Using a Novel Two-Stage Wiener Process With Stage Correlation

open access: yesIEEE Access, 2018
Remaining useful life (RUL) prediction of products is a critical component of prognostics and health management. Recently, the RUL prediction based on a two-stage degradation process has received increasing attention.
Hongyu Wang, Yu Zhao, Xiaobing Ma
doaj   +1 more source

Quantitative estimation of sampling uncertainties for mycotoxins in cereal shipments [PDF]

open access: yes, 2012
Many countries receive shipments of bulk cereals from primary producers. There is a volume of work that is ongoing that seeks to arrive at appropriate standards for the quality of the shipments and the means to assess the shipments as they are out-loaded.
Bourgeois, Florent   +2 more
core   +1 more source

Optimal Two-Stage Stratified Sampling

open access: yesThe Annals of Mathematical Statistics, 1969
Suppose that a fixed total number $N$ of observations are to be made in a population $Pi$ which is composed of two strata $\Pi_1$ and $\Pi_2$. For $i = 1, 2$, it is assumed that each observation in the stratum $\Pi_i$ has a normal distribution with unknown mean $\theta_i$ and specified precision $r_i (r_i > 0)$.
DeGroot, M. H., Starr, N.
openaire   +3 more sources

Sensitivity of normal-based triple sampling sequential point estimation to the normality assumption [PDF]

open access: yes, 2013
This article discusses the sensitivity of the sequential normal-based triple sampling procedure for estimating the population mean to departures from normality.
Yousef, A.S., Hamdy, H.I., Kimber, A.C.
core   +1 more source

Forest density and orchard classification in Hyrcanian forests of Iran using Landsat 8 data

open access: yesJournal of Forest Science, 2017
Satellite-based remote sensing is of crucial importance to provide timely and continuous thematic maps for practical forestry tasks. There is currently no existing remote sensing-based, large-scale inventory of canopy cover classes (and also adjacent ...
Khosrow MIRAKHORLOU, Reza AKHAVAN
doaj   +1 more source

Technical Note—Two-Stage Sample Robust Optimization

open access: yesOperations Research, 2022
In “Two-Stage Sample Robust Optimization,” Bertsimas, Shtern, and Sturt investigate a simple approximation scheme, based on overlapping linear decision rules, for solving data-driven two-stage distributionally robust optimization problems with the type-infinity Wasserstein ambiguity set.
Dimitris Bertsimas   +2 more
openaire   +2 more sources

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen   +23 more
wiley   +1 more source

Solid Pseudopapillary Neoplasm of the Pancreas in Children and Adolescents: Expert Recommendations

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Solid pseudopapillary neoplasm of the pancreas (SPN) is a rare low‐grade malignant exocrine pancreatic tumor, mostly discovered during the second decade of life in females, with a very good prognosis, provided microscopically complete surgical excision is achieved.
Sabine Irtan   +18 more
wiley   +1 more source

Ovarian Sex Cord Stromal Tumors in Children and Adolescents—The European Standard Clinical Practice Recommendations

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT As part of the European Cooperative Study Group for Paediatric Rare Tumours initiative, we developed standard clinical practice guidelines for ovarian sex cord stromal tumors, based on comprehensive national and international cohort analyses, literature review, and a final expert consensus conference.
Dominik T. Schneider   +15 more
wiley   +1 more source

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