Results 21 to 30 of about 15,062,519 (328)

A Bootstrap Method for a Multiple-Imputation Variance Estimator in Survey Sampling

open access: yesStats, 2022
Rubin’s variance estimator of the multiple imputation estimator for a domain mean is not asymptotically unbiased. Kim et al. derived the closed-form bias for Rubin’s variance estimator.
Lili Yu, Yichuan Zhao
doaj   +1 more source

Survey sampling in the Global South using Facebook advertisements

open access: yesPolitical Science Research and Methods, 2020
Survey research in the Global South traditionally requires large budgets and lengthy fieldwork, for which researchers hire local enumerators to conduct face-to-face surveys with respondents.
Leah R. Rosenzweig   +4 more
semanticscholar   +1 more source

Nearest Neighbor Imputation for General Parameter Estimation in Survey Sampling [PDF]

open access: yesAdvances in Econometrics, 2017
Nearest neighbor imputation has a long tradition for handling item nonresponse in survey sampling. In this article, we study the asymptotic properties of the nearest neighbor imputation estimator for general population parameters, including population ...
Shu Yang, Jae Kwang Kim
semanticscholar   +1 more source

Adaptive normalization for IPW estimation

open access: yesJournal of Causal Inference, 2023
Inverse probability weighting (IPW) is a general tool in survey sampling and causal inference, used in both Horvitz–Thompson estimators, which normalize by the sample size, and Hájek/self-normalized estimators, which normalize by the sum of the inverse ...
Khan Samir, Ugander Johan
doaj   +1 more source

Neutrosophic Estimators in Two-Phase Survey Sampling [PDF]

open access: yesNeutrosophic Sets and Systems, 2023
Point estimates in survey sampling only provide a single value for the parameter being studied and are consequently vulnerable to changes caused by sampling error.
Vinay Kumar Yadav, Shakti Prasad
doaj   +1 more source

A Novel Sub-Type Mean Estimator for Ranked Set Sampling with Dual Auxiliary Variables

open access: yesJournal of New Theory, 2023
This research introduces a novel sub-estimator designed to estimate the population mean under ranked set sampling, motivated by the new concept of a recently introduced sub-ratio estimator.
Eda Gizem Koçyiğit
doaj   +1 more source

A statistical small-area method of estimation of spatial distribution of the tree damage degree

open access: yesJournal of Forest Science, 2003
The objectives of this study are to demonstrate a small-area method of estimation of the spatial distribution of the tree damage degree, and to initially verify it during the assessment of fir (Abies alba Mill.) and beech (Fagus sylvatica L.) vitality in
R. Podlaski
doaj   +1 more source

Testing of Stratified Cluster Sampling Technique to Produce Unbiased Estimator for Parameter of Population [PDF]

open access: yes, 2018
This research is done based on the importance testing of sampling technique before the real survey is done. The aim of this research is to test stratified cluster sampling technique in producing unbiased estimator of population.
Yunus, M. (Muhammad)
core   +2 more sources

Factor Analysis as a Tool for Survey Analysis

open access: yes, 2021
Factor analysis is particularly suitable to extract few factors from the large number of related variables to a more manageable number, prior to using them in other analysis such as multiple regression or multivariate analysis of variance.
Noora Shrestha
semanticscholar   +1 more source

Age of Information: An Introduction and Survey [PDF]

open access: yesIEEE Journal on Selected Areas in Communications, 2020
We summarize recent contributions in the broad area of age of information (AoI). In particular, we describe the current state of the art in the design and optimization of low-latency cyberphysical systems and applications in which sources send time ...
R. Yates   +5 more
semanticscholar   +1 more source

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