Results 31 to 40 of about 397,778 (284)
Cat swarm optimization for the determination of strata boundaries [PDF]
A stratified random sampling method is preferred for selecting varied populations with outliers. As opposed to plain random sampling, stratified sampling increases statistical precision by reducing estimator variance.
Jasim Raghad M.
doaj +1 more source
Stratification in Business and Agriculture Surveys with R [PDF]
Usually sample surveys on enterprises and farms adopt a one stage stratified sampling design. In practice the sampling frame is divided in non-overlapping strata and simple random sampling is carried out independently in each stratum.
Marco Ballin +3 more
doaj
The new type of multi-temporal global land use data with multiple classes is able to provide information on both the different land covers and their temporal changes; furthermore, it is able to contribute to many applications, such as those involving ...
Yali Gong +6 more
doaj +1 more source
Estimation of Fourier Transform Using Alias-free Hybrid-Stratified Sampling [PDF]
This paper proposes a novel method of estimating the Fourier Transform (FT) of deterministic, continuous-time signals, from a finite number \u1d441 of their samples taken from a fixed-length observation window.
Ahmad, B.I. +3 more
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Novel imputation methods under stratified simple random sampling
This paper addresses some classes of combined and separate imputation methods (CSIMs) of the population mean under stratified simple random sampling (SSRS) along with their characteristics.
Anoop Kumar +5 more
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When direct survey are about sensitive characteristics such as addiction to drugs, alcoholism, proneness to tax invasion and sexual violence, nonresponse bias and response bias become serious problems because people oftentimes do not wish to give true ...
Gi-Sung Lee +3 more
doaj +1 more source
Comparison Four Different Probability Sampling Methods based on Differential Evolution Algorithm
Differential Evolution (DE) is one kind of evolution algorithm, which based on difference of individuals. DE has exhibited good performance on optimization problem.
Qingbo Lu +3 more
doaj +1 more source
A soil sampling program for the Netherlands [PDF]
Soil data users in The Netherlands were inventoried for current and future data needs. Prioritized data needs were used to design the Netherlands Soil Sampling Program (NSSP) as a framework containing 3 groups of related projects: map upgrading, map ...
DE GRUIJTER, JJ +2 more
core +3 more sources
Sampling design may obscure species–area relationships in landscape-scale field studies [PDF]
We investigated 1) the role of area per se in explaining anuran species richness on reservoir forest islands, after controlling for several confounding factors.
Bueno, Anderson Saldanha +3 more
core +1 more source
Anti-aliasing with stratified B-spline filters of arbitrary degree [PDF]
A simple and elegant method is presented to perform anti-aliasing in raytraced images. The method uses stratified sampling to reduce the occurrence of artefacts in an image and features a B-spline filter to compute the final luminous intensity at each ...
Anderson J. +5 more
core +1 more source

