Results 41 to 50 of about 369,033 (293)
Three phase stratified sampling with ratio method of estimation
Statistica, 2014 In this paper a three phase sampling is proposed to estimate the population mean of character by a three phase stratified ratio estimator and some numerical results are presented to illustrate efficiency of the proposed procedure against possible ...
Bijoy Kumar Pradhan
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Discriminative Density-ratio Estimation [PDF]
Proceedings of the 2014 SIAM International Conference on Data Mining, 2014 The covariate shift is a challenging problem in supervised learning that results from the discrepancy between the training and test distributions. An effective approach which recently drew a considerable attention in the research community is to reweight the training samples to minimize that discrepancy.
Miao, Yun-Qian +2 more
openaire +2 more sources
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Osteonecrosis (ON) is a debilitating complication of acute lymphoblastic leukemia (ALL) therapy. While numerous studies have explored its incidence and associated risk factors, investigations using large‐scale cohorts remain important to characterize ON across heterogeneous populations.
Noémie de Villiers +5 more
wiley +1 more source
IEEE AccessIn this investigation, we examined the impact of employing simple random sampling on the stratification points pertaining to the two independent variables. The study focused on a variable (X) exhibiting a robust correlation, and we employed a combination
S. E. H. Rizvi +5 more
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Efficient transformed ratio-type estimator using single auxiliary information
Kuwait Journal of Science, 2021 This paper purposes an efficient transformed ratio-type estimator for the estimation of population variance of study variable (y) by utilizing single auxiliary information (x) under simple random sampling without-replacement.
Sana Amjad, Ismail Muhammad
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Transfusion‐related iron overload (TRIO) is a late effect of therapy impacting survivors of childhood cancer and hematopoietic stem cell transplantation (HSCT) who receive frequent packed red blood cell (pRBC) transfusions. Surprisingly, there are no accepted guidelines to assist providers in identifying and treating at‐risk ...
Luke Gingell +3 more
wiley +1 more source
Composite Estimators for the Population Mean Under Ranked Set Sampling
MathematicsRanked Set Sampling (RSS) is an effective sampling technique, particularly when precise measurement of the study variable is costly or time-consuming, but ranking the units is relatively easy.
Sayed A. Mostafa +2 more
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Journal of Mathematical and Fundamental Sciences, 2019 This paper proposes two new classes of ratio estimators for population mean when information on a known auxiliary variable is available in simple random sampling.
Uraiwan Jaroengeratikun, Nuanpan Lawson
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Background L‐asparaginase is a critical component in treatment protocols for pediatric acute lymphoblastic leukemia. Acute pancreatitis reactions can necessitate delays and, in some cases, discontinuation of L‐asparaginase, which compromises outcomes.
Edward J. Raack +39 more
wiley +1 more source
Analytic Confidence Level Calculations using the Likelihood Ratio and Fourier Transform [PDF]
, 1999 The interpretation of new particle search results involves a confidence level calculation on either the discovery hypothesis or the background-only ("null") hypothesis.
Hu, Hongbo, Nielsen, Jason
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