Results 21 to 30 of about 341 (76)

Metric duality between positive definite kernels and boundary processes

, 2017
We study representations of positive definite kernels $K$ in a general setting, but with view to applications to harmonic analysis, to metric geometry, and to realizations of certain stochastic processes.
Jorgensen, Palle, Tian, Feng
core   +1 more source

Enlace de encuestas: una propuesta metodológica y aplicación a la encuesta de presupuestos de tiempo [PDF]

, 1999
Tratamos el problema de completar dos ficheros con registros conteniendo un subconjunto común de variables. La técnica investigada utiliza árboles de regresión y/o clasificación. Se propone y estudia una extensión para variables respuesta multivariantes,
Bárcena, María Jesús, Tusell, Fernando   +1 more
core   +3 more sources

Bayesian Estimation of Inequalities with Non-Rectangular Censored Survey Data

, 2008
Synthetic indices are used in Economics to measure various aspects of monetary inequalities. These scalar indices take as input the distribution over a finite population, for example the population of a specific country.
Gautier, Eric
core   +5 more sources

Optimizing population mean estimation using regression and factor type estimators in the presence of non-response

Franklin Open
This paper addresses the problem of estimating the population mean of the study variable, Y, in the presence of non-response. To address this, we incorporated two additional variables, X and Z, as auxiliary variables.
Ashok K. Jaiswal, M.K. Pandey, G.N. Singh   +2 more
doaj   +1 more source

Statistical Inference of Weighted Extropy Under Outlier Influence: An MCMC Approach with Data Applications

Scientific African
Extropy has recently become a focal point of study as a measure of uncertainty in probability distributions and serves as the dual complement to entropy.
Amal S. Hassan, Eslam Abdelhakim Seyam, Said G. Nassr, Rokaya Elmorsy Mohamed   +3 more
doaj   +1 more source

Simulation analysis of non-respondent information in context of small domain

Heliyon
In the real-world, there are various situations when all units are not accessible of the respondent called unit non-response. The effect of unit non-response is a tricky matter for estimating the total number of unit.
Ashutosh Ashutosh, Marius Stefan, Piyush Kant Rai, Walid Emam, Soofia Iftikhar, Malik Muhammad Anas   +5 more
doaj   +1 more source

Large deviations for risk measures in finite mixture models

, 2018
Due to their heterogeneity, insurance risks can be properly described as a mixture of different fixed models, where the weights assigned to each model may be estimated empirically from a sample of available data.
Bignozzi, Valeria, Macci, Claudio, Petrella, Lea   +2 more
core   +1 more source

A new unified measure for evaluation of randomized response techniques

Heliyon
Randomized response scrambling techniques have been in existence for over fifty years. These scrambling methods are very useful in sample surveys where researchers deal with sensitive variables.
Muhammad Azeem, Abdul Salam, Olayan Albalawi, Sundus Hussain   +3 more
doaj   +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

Enhanced Imputation Methods Using Bivariate Auxiliary Information in Stratified Sampling: An application on Road Accident Data

Alexandria Engineering Journal
Non-response is a substantial obstacle to data quality and estimation precision in survey sampling, requiring appropriate ways to mitigate this problem.
Faizan Danish, G.R.V. Triveni, Umer Mushtaq Lone   +2 more
doaj   +1 more source