Results 41 to 50 of about 468,328 (281)

Some Efficient Methods to Remove Bias in Ratio and Product Types Estimators in Ranked Set Sampling

International Journal of Bio-Resource and Stress Management, 2022
Ranked set sampling is one method to potentially increase precision and reduce costs by using quantitative or qualitative information to obtain a more representative sample.
Nitu Mehta, V. L. Mandowara
doaj  

A Class of Exponential Regression Type Estimators for Population Variance in Two-Phase Sampling [PDF]

Journal of Statistical Theory and Applications (JSTA), 2017
This article deals with the problems of efficient estimation of population variance in two-phase (double) sampling. Using information on two auxiliary variables, a class of chain exponential to regression type estimators has been proposed and its ...
A. Chatterjee, G.N. Singh, A. Bandyopadhyay   +2 more
doaj   +1 more source

Auxiliary variables for deformable models [PDF]

Proceedings of IEEE International Conference on Computer Vision, 2002
We present a mathematical formulation for curve and surface reconstruction algorithms by introduction of auxiliary variables. For deformable models and templates, two step iterative algorithms have been often used where, at each iteration, the model is first locally deformed according to the potential data attraction and then globally smoothed. We show
openaire   +1 more source

Row–Column Sampling Design Using Auxiliary Ranking Variables

Journal of Agricultural, Biological and Environmental Statistics, 2022
AbstractIn this paper, we present a new class of row–column sampling design when a sampling region is presented by non-overlapping quadrats of an rp-by-p row–column grid. Quadrats are rank-ordered on a relevant auxiliary variable, first in the rp rows of the grid and then in the so formed p ranked columns.
Omer Ozturk, Olena Kravchuk, Raymond Correll   +2 more
openaire   +2 more sources

Survival for Children Diagnosed With Wilms Tumour (2012–2022) Registered in the UK and Ireland Improving Population Outcomes for Renal Tumours of Childhood (IMPORT) Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background The Improving Population Outcomes for Renal Tumours of childhood (IMPORT) is a prospective clinical observational study capturing detailed demographic and outcome data on children and young people diagnosed with renal tumours in the United Kingdom and the Republic of Ireland.
Naomi Ssenyonga, Angela Lopez‐Cortes, Reem Al‐Saadi, Suzanne Tugnait, Kristina Dzhuma, Catriona Duncan, Gordan Vujanic, Tanzina Chowdhury, Claudia Allemani, Michel P. Coleman, Kathy Pritchard‐Jones, the Children's Cancer and Leukaemia Group (CCLG) Renal Tumour Special Interest Group, Hugh Bishop, Anthony McCarthy, Pamela Kearns, Helen Rees, Amos Burke, Meriel Jenney, Jane Pears, Hamish Wallace, Milind Ronghe, Tanzina Chowdhury, Susan Picton, Emma Ross, Lisa Howell, Bernadette Brennan, Gail Halliday, Richard Grundy, Shaun Wilson, Sucheta Vaidya, Daniel Yeomanson, Jessica Bate, Vesna Pavasovic, Jessica Bate, Sabine Irtan, Jesper Brok, Minou Oostveen, Kristina Dzhuma, Mark Weeks, Richard Williams, Mark Powis, Max Pachl, Bruce Okoye, Naima Smeulders, Gordan Vujanic, Oystein Olsen, Tom Watson, Susan Shelmerdine, Dan Saunders, Angela Lopez-Cortes, Taryn Treger, Tom Jackson, Suzanne Tugnait, Lisa Howell, Tanzina Chowdhury, Sam Behjati, Angela Polanco   +56 more
wiley   +1 more source

Imputation of missing data for domain mean estimation using simple random sampling

Kuwait Journal of Science
The estimate of domain mean is a significant issue in sample surveys. However, if the data is missing, it becomes very necessary. In the case of missing data, this paper proposes some direct and synthetic domain mean estimators using simple random ...
Anoop Kumar, Shashi Bhushan, Rohini Pokhrel, Amer I. Al-Omari, Ayed R.A. Alanzi, Shokrya S. Alshqaq   +5 more
doaj   +1 more source

Variable geometry manned orbital vehicle Patent [PDF]

, 1970
Variable geometry manned orbital vehicle having high aerodynamic efficiency over wide speed range and incorporating auxiliary pivotal ...
Henry, B. Z., Jr., Spencer, B., Jr.
core   +1 more source

Lifestyle Behaviors and Cardiotoxic Treatment Risks in Adult Childhood Cancer Survivors

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Higher doses of anthracyclines and heart‐relevant radiotherapy increase cardiovascular disease (CVD) risk. This study assessed CVD and CVD risk factors among adult childhood cancer survivors (CCSs) across cardiotoxic treatment risk groups and examined associations between lifestyle behaviors and treatment risks.
Ruijie Li, Raquel Revuelta Iniesta, Alan R. Barker, Dimitris Vlachopoulos, Tomáš Sláma, Christina Schindera, Fabiën N. Belle   +6 more
wiley   +1 more source

Estimation of population mean using ranked set sampling in the presence of measurement errors

Kuwait Journal of Science
Ranked set sampling is widely acknowledged for its superior efficiency compared with simple random sampling. Only a small amount of work has been conducted using ranked set sampling when measurement errors are present.
Ahmadini A.A.H., Singh R., Raghav Y.S.
doaj   +1 more source

ERROR ANALYSIS ON THE AUXILIARY VERBS MADE BY THE TENTH GRADERS OF MAN 2 SAMARINDA

Lingua: Jurnal Bahasa, Sastra dan Pengajarannya, 2016
This study used qualitative design focusing on the errors made by the second year students of MAN 2 Samarinda. The variable of this study was errors on auxiliary verbs. The variable was measured by using an objective test on auxiliary verbs.
Siti Djulaikah
doaj   +1 more source