Results 41 to 50 of about 3,160,245 (302)

Improvement over Ratio and Ratio-Type Estimator

, 1998
We propose an estimator that is more efficient than the ratio estimator and, under certain conditions, than Ray and Sing's (1981) estimator up to the first degree approximation, The mean square error (MSE) is also studied by using the two-phase sampling ...
Javid Shabbir & Munir Akhtar
core   +1 more source

The adaptive coherence estimator is the generalized likelihood ratio test for a class of heterogeneous environments [PDF]

, 2008
The adaptive coherence estimator (ACE) is known to be the generalized likelihood ratio test (GLRT) in partially homogeneous environments, i.e., when the covariance matrix Ms of the secondary data is proportional to the covariance matrix Mp of the vector ...
Bidon, Stéphanie, Besson, Olivier, Tourneret, Jean-Yves   +2 more
core   +1 more source

Central Nervous System Tumors Among Infants in Canada: A Report From CYP‐C

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Central nervous system (CNS) tumors in infants are rare, pose unique clinical challenges, and lack large‐scale evidence‐based data to guide management. This study seeks to describe CNS tumors in Canadian infants and to compare their outcomes with those of older children.
Samuel Sassine, Hallie Coltin, Sylvia Cheng, Lucie Lafay‐Cousin, Vanan Issai Magimairajan, Craig Erker, Stéphanie Vairy, Lynette Bowes, Adam Fleming, Donna Johnston, Sarah McKillop, Roona Sinha, Julie Bennett, Christina Coleman, Laura Wheaton, Shayna Zelcer, Samuele Renzi, Thai Hoa Tran   +17 more
wiley   +1 more source

A Combined Family of Ratio Estimators for Population Mean using an Auxiliary Variable in Simple Random Sampling

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
doaj   +1 more source

Telescoping Density-Ratio Estimation

CoRR, 2020
Density-ratio estimation via classification is a cornerstone of unsupervised learning. It has provided the foundation for state-of-the-art methods in representation learning and generative modelling, with the number of use-cases continuing to proliferate.
Benjamin Rhodes, Kai Xu 0016, Michael U. Gutmann   +2 more
openaire   +3 more sources

Comparative Drug Response Profiling in Neuroblastoma Cell Lines and Patient‐Derived Tumor Organoids

Pediatric Blood &Cancer, EarlyView.
ABSTRACT High‐risk neuroblastoma remains a leading cause of pediatric cancer mortality, and improved preclinical models are needed to guide therapeutic developments. We screened seven high‐risk neuroblastoma cell lines and three patient‐derived tumor organoids with 528 compounds alongside bone marrow controls, and compared them with external datasets ...
Krzysztof Wierbiłowicz, Se Whee Sammy Park, Aironas Los, Ernest Liu, Nona Struyf, Tom Erkers, Sören Lehmann, Jan J. Molenaar, Jakob Stenman, Olli Kallioniemi, Päivi Östling, Brinton Seashore‐Ludlow, Kasper Karlsson   +12 more
wiley   +1 more source

Impact of Auxiliary Information and Measurement Errors on Mean Estimation with Mixture Optional Enhanced Trust (MOET) Randomized Response Model

Axioms
Randomized response technique (RRT) surveys are designed to secure honest answers to sensitive questions. In this study, we consider the important issue of measurement error (ME).
Michael Parker, Sat Gupta, Sadia Khalil
doaj   +1 more source

Efficient neutrosophic exponential estimators for accurate population mean estimation in simple random sampling [PDF]

Journal of Fuzzy Extension and Applications
Neutrosophic statistics extend the classical statistical methods by incorporating elements of indeterminacy and provide a powerful tool for handling imprecision and uncertainty in data. The objective of this paper is to introduce the efficient neutrosophic
Anoop Kumar, Priya Priya
doaj   +1 more source

The Efficiency of a Ratio Product Estimator in the Estimation of the Finite Population Coefficient of Variation

Engineering Proceedings, 2023
Ratio product estimators have been proposed by several authors for the estimation of the population mean and population variance, but very few authors have proposed ratio product estimators for the estimation of the population coefficient of variation ...
Yahaya Zakari, Mojeed Abiodun Yunusa, Rashida Abdulrahman, Isah Muhammad, Aminu Suleiman Mohammed, Ahmed Audu   +5 more
doaj   +1 more source

Impact of Radiation Therapy on Physical and Psychosocial Health of Adolescents and Young Adults: A Joint Report From the Children's Oncology Group AYA and Radiation Oncology Committees

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Rates of cancer among adolescents and young adults (AYA), age 15–39 years, are increasing. Consequently, radiation oncologists are treating more AYAs who have diagnoses spanning both pediatric and adult practices. Compared to pediatric and older adult patients, AYAs face a unique set of challenges.
Hesham Elhalawani, Rachel K. Peterson, Avani D. Rao, Laurie J. McKenzie, Ahmed Magdy Elmotayam, Leslie Chang, Michael Roth, Susan L. McGovern   +7 more
wiley   +1 more source