Results 1 to 10 of about 647,472 (155)
Batch Active Learning With Two-Stage Sampling [PDF]
IEEE Access, 2020 Due to its effectiveness in training precise model using significant fewer labeled instances, active learning has been widely researched and applied.
Ronghua Luo, Xiang Wang
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Two-stage sampling for better survival model performance [PDF]
BMC Medical Research MethodologyBackground With the emergence of high-dimensional censored survival data in health and medicine, the use of survival models for risk prediction is increasing.
Yunwei Zhang, Samuel Muller
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Two-stage sampling in the estimation of growth parameters and percentile norms: sample weights versus auxiliary variable estimation [PDF]
BMC Medical Research Methodology, 2021 Background The use of auxiliary variables with maximum likelihood parameter estimation for surveys that miss data by design is not a widespread approach, despite its documented improved efficiency over traditional approaches that deploy sampling weights.
George Vamvakas +2 more
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Screening for Rheumatic Heart Disease among Peruvian Children: A Two-Stage Sampling Observational Study. [PDF]
PLoS ONE, 2015 BackgroundThe objective of the study was to evaluate the implications of different classifications of rheumatic heart disease on estimated prevalence, and to systematically assess the importance of incidental findings from echocardiographic screening ...
Ernest Spitzer +10 more
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Variables two stage sampling plans based on the coefficient of variation
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2016 The coefficient of variation (CV) is an important quality parameter to measure the stability of the product quality. A variable two stage sampling plan based on the CV is developed in this paper when the quality characteristic follows normal distribution.
Aijun YAN, Sanyang LIU, Xiaojuan DONG
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Multiscale study of memory type simple ratio estimators in two stage sampling under exponentially weighted moving averages. [PDF]
PLoS ONETwo-stage cluster sampling is often employed in survey sampling when complete population information is not available. In this setting, the Exponentially Weighted Moving Average (EWMA) statistic offers an efficient way to estimate the population mean by ...
Kanwal Shafiq Minhas +3 more
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Design Effects of Two-Stage Sampling
Journal of the Royal Statistical Society Series B: Statistical Methodology, 1986 SUMMARY The effect of a two-stage sampling design on statistical inference is discussed. A definition of a design effect is given. The structure of design effects for a class of statistics is investigated. Results have both a design-based and a model-based interpretation.
C J Skinner
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Ranked Set Sampling Based Regression Estimators in Two-Stage Sampling Design
Journal of Statistical Theory and Applications (JSTA)This paper examines the use of ranked set sampling in the second stage of the two-stage sampling design to improve the regression estimator. The mean square errors of the suggested estimators are computed, and both theoretical and simulation results ...
Worthing Yanglem, Phrangstone Khongji
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Stats, 2022 The bootstrap method is often used for variance estimation in sample surveys with a stratified multistage sampling design. It is typically implemented by producing a set of bootstrap weights that is made available to users and that accounts for the ...
Jean-François Beaumont, Nelson Émond
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A sampling strategy for assessing habitat coverage at a broad spatial scale
Ecological Indicators, 2022 The quantitative assessment of habitat conservation status is a major task for European Union member states in compliance with Council Directive 92/43. One goal of the European 2030 Biodiversity Strategy is the effective management of habitats that show ...
Lorenzo Fattorini +5 more
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