Results 31 to 40 of about 1,361,248 (269)
Efficient generation of random derangements with the expected distribution of cycle lengths
, 2020 We show how to generate random derangements efficiently by two different techniques: random restricted transpositions and sequential importance sampling.
Mendonça, J. R. G.
core +1 more source
Novel imputation methods under stratified simple random sampling
Alexandria Engineering JournalThis 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
doaj +1 more source
Improved neutrosophic exponential-ratio estimator of population mean with simple random sampling [PDF]
Neutrosophic Sets and SystemsIn this paper we present a neutrosophic exponential-ratio estimator for calculating the population mean using simple random sampling. In sampling methods classical statistics always depends on exact and complete data, but when we are dealing with unclear
Bhatt Ravi Jitendrakumar +2 more
doaj +1 more source
An Unbiased Estimator of Finite Population Mean Using Auxiliary Information
Journal of Statistical Theory and Applications (JSTA), 2021 In this paper, an unbiased estimator is constructed by using a linear combination of an estimator of study variable and mean per unit estimator of an auxiliary variable under simple random sampling without replacement scheme.
B. Mahanty, G. Mishra
doaj +1 more source
Uniform Sampling for Matrix Approximation [PDF]
, 2014 Random sampling has become a critical tool in solving massive matrix problems. For linear regression, a small, manageable set of data rows can be randomly selected to approximate a tall, skinny data matrix, improving processing time significantly.
Cohen, Michael B. +5 more
core +1 more source
Limiting Behavior of High Order Correlations for Simple Random Sampling [PDF]
, 2011 For N=1,2,..., let S_N be a simple random sample of size n=n_N from a population A_N of size N, where 0 f as N -> infinity, then N^{k/2}Corr(k) -> [f(f-1)]^{k/2}EZ^k, k even and N^{(k+1)/2}Corr(k) -> [f(f-1)]^{(k-1)/2}(2f-1)(1/3)(k-1)EZ^{k+1}, k odd ...
Walker, Christopher Wayne
core +1 more source
Mapping the evolution of mitochondrial complex I through structural variation
FEBS Letters, EarlyView.Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin +2 more
wiley +1 more source
IEEE Access, 2020 The quality control of meteorological data has lately received great attention for its important significance to national ecological security and military security.
Sen Tian +4 more
doaj +1 more source
Coupling methods for multistage sampling
, 2015 Multistage sampling is commonly used for household surveys when there exists no sampling frame, or when the population is scattered over a wide area. Multistage sampling usually introduces a complex dependence in the selection of the final units, which ...
Chauvet, Guillaume
core +3 more sources
FEBS Letters, EarlyView.This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley +1 more source