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The chain ratio estimator and regression estimator with linear combination of two auxiliary variables. [PDF]
PLoS ONE, 2013 In sample surveys, it is usual to make use of auxiliary information to increase the precision of the estimators. We propose a new chain ratio estimator and regression estimator of a finite population mean using linear combination of two auxiliary ...
Jingli Lu
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A two parameter ratio-product-ratio estimator using auxiliary information [PDF]
, 2012 We propose a two parameter ratio-product-ratio estimator for a finite population mean in a simple random sample without replacement following the methodology in Ray and Sahai (1980), Sahai and Ray (1980), Sahai and Sahai (1985) and Singh and Ruiz Espejo (
Chami, Peter S. +2 more
core +5 more sources
Improved exponential type ratio estimator in double sampling for stratification [PDF]
Scientific Reports, 2023 The objective of this research is to create a chain-ratio-type exponential estimator in order to estimate the finite population mean in double sampling for stratification.
Anurag Gupta, Rajesh Tailor, Nitu Barod
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Trimmed Density Ratio Estimation
, 2017 Density ratio estimation is a vital tool in both machine learning and statistical community. However, due to the unbounded nature of density ratio, the estimation procedure can be vulnerable to corrupted data points, which often pushes the estimated ...
Fukumizu, Kenji +3 more
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DNN-Based Slip Ratio Estimator for Lugged-Wheel Robot Localization in Rough Deformable Terrains
IEEE Access, 2023 This paper presents a deep neural network (DNN)-based slip ratio estimator fused with an invariant extended Kalman filter (IEKF) for lugged-wheel robot localization using an inertial sensor and an encoder.
Chul-hong Kim, Dong-il Dan Cho
semanticscholar +1 more source
RMS: Research in Mathematics & Statistics, 2021 In this article, we have suggested a class of estimators for the estimation of the population variance of the variable of interest. The proposed estimators used some certain known information of the auxiliary variable, such as kurtosis, coefficient of ...
Umer Daraz, Mursala Khan
semanticscholar +1 more source
Logarithmic Ratio-Type Estimator of Population Coefficient of Variation
Asian Journal of Probability and Statistics, 2021 The estimation of population coefficient of variation is one of the challenging aspects in sampling survey techniques for the past decades and much effort has been employed to develop estimators to produce its efficient estimate.
M. A. Yunusa +6 more
semanticscholar +1 more source
Estimating Diversity via Frequency Ratios [PDF]
Biometrics, 2015 SummaryWe wish to estimate the total number of classes in a population based on sample counts, especially in the presence of high latent diversity. Drawing on probability theory that characterizes distributions on the integers by ratios of consecutive probabilities, we construct a nonlinear regression model for the ratios of consecutive frequency ...
Willis, Amy, Bunge, John
openaire +4 more sources
A new Separated Ratio Estimator in the stratified random sampling [PDF]
المجلة العراقية للعلوم الاحصائية, 2009 The aim of this research is to find a new separated ratio estimator in the stratified random sampling ,three other estimators are compared with the new separated ratio estimator , namely : ordinary separated ratio estimator , combined ratio estimator ...
doaj +1 more source
Ratio-cum-product type exponential estimator
Statistica, 2013 This paper addresses the problem of estimating the population mean of the study variate Y using information on two auxiliary variables X1 and X2 . A ratio-cum-product type exponential estimator has been suggested and its bias and mean squared error have ...
Housila P. Singh +2 more
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