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Stratified Sampling Design Based on Data Mining [PDF]

open access: yesHealthcare Informatics Research, 2013
ObjectivesTo explore classification rules based on data mining methodologies which are to be used in defining strata in stratified sampling of healthcare providers with improved sampling efficiency.MethodsWe performed k-means clustering to group ...
Yeonkook J. Kim   +4 more
doaj   +2 more sources

Local Sexual Dimorphism Based on Chilotic Index of Human Dried Hip Bone: A Morphometric Study

open access: yesProceedings, 2023
Introduction: Human hip bone sexual dimorphism is an important parameter in determining gender of an unknown hipbone, an important point in Anatomy and Anthropology.
Sibgha Fatima   +5 more
doaj   +1 more source

Alternative Estimators for Stratified Random Sampling [PDF]

open access: yesThe Egyptian Statistical Journal, 1991
In this paper, two methods of estimation using estimators for stratified random sample are suggested. Two estimators are suggested for a positively correlated auxiliary variable and the other two are suggested for a negatively correlated auxiliary ...
Mounira Hussein
doaj   +1 more source

POTENSI BIOMASSA MANTANGAN (Merremia Peltata) DI TAMAN NASIONAL BUKIT BARISAN SELATAN

open access: yesJurnal Belantara, 2023
Mantangan has properties that are detrimental to the environment, especially related to its invasive nature for conservation areas such as TNBBS. Mantangan plants can reduce the level of habitat quality and inhibit the mobility of large fauna in TNBBS ...
Santori Santori   +2 more
doaj   +1 more source

Stratified split sampling of electronic health records

open access: yesBMC Medical Research Methodology, 2023
Although superficially similar to data from clinical research, data extracted from electronic health records may require fundamentally different approaches for model building and analysis.
Tianyao Huo   +3 more
doaj   +1 more source

Sampling of cashew nuts from cashew tree clones [PDF]

open access: yesRevista Brasileira de Fruticultura, 2020
The aim of this work was to estimate sample sizes to assist the genetic improvement of the cashew tree (Anacardium occidentale L.). Stratified sampling, comprising five strata (S5, S4, S3, S2, and S1) of five cashew clones (BRS 274, BRS 275, BRS 226, BRS
Adroaldo Guimarães Rossetti   +2 more
doaj   +1 more source

Determination of Sample Size and Observation Units

open access: yesInternational Journal of Assessment Tools in Education, 2019
The purpose of this study was to write programsto define sampling sizes and observation units by probability sampling methodsand to provide an idea for software developers. Thealgorithms of the programs were written in Python 3.
Tülin Acar
doaj   +1 more source

Correspondence: Can Menstrual Cycle Length Predict Cardiovascular Risk in Healthy Indian Females? [PDF]

open access: yesJournal of Clinical and Diagnostic Research
Dear Editor, We read with great interest the article entitled “Can Menstrual Cycle Length Predict Cardiovascular Risk in Healthy Indian Females? A cross-sectional Study” by Shilpi Vashishta et al., published in your esteemed journal (Journal of ...
Avnesh Kumar Singh, Shikha Singh
doaj   +1 more source

Robust Lavallee-Hidiroglou stratified sampling strategy

open access: yesSurvey Research Methods, 2012
There are several reasons why robust regression techniques are useful tools in sampling design. First of all, when stratified samples are considered, one needs to deal with three main issues: the sample size, the strata bounds determination and the ...
Maria Caterina Bramati
doaj   +1 more source

VERDA: A Multisampler Tool for Mesopelagic Nets

open access: yesJournal of Marine Science and Engineering, 2023
Different types and systems to discriminate plankton samples at different strata in the water column have been developed in recent decades. For sampling at sufficient depth, opening and closing zooplankton multinets are ideal because there is no ...
Arturo Castellón, María Pilar Olivar
doaj   +1 more source

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