Results 51 to 60 of about 62,585 (293)

On decompositions of estimators under a general linear model with partial parameter restrictions

open access: yesOpen Mathematics, 2017
A general linear model can be given in certain multiple partitioned forms, and there exist submodels associated with the given full model. In this situation, we can make statistical inferences from the full model and submodels, respectively.
Jiang Bo, Tian Yongge, Zhang Xuan
doaj   +1 more source

Temporal Trends and Short‐ and Long‐Term Mortality of People With Acute Myocardial Infarction and Rheumatoid Arthritis: A Nationwide Cohort Study

open access: yesArthritis Care &Research, EarlyView.
Objective We investigated whether a diagnosis of rheumatoid arthritis (RA) affects the quality of inpatient acute myocardial infarction (AMI) care and long‐term mortality post‐AMI. Methods We analyzed data from 784,091 adults, 6,047 with a diagnosis of RA, from England and Wales hospitalized with AMI between 2005 and 2019 from the Myocardial Ischaemia ...
Megan Butler   +8 more
wiley   +1 more source

Analysis of Optimal Prediction Under Stochastically Restricted Linear Model and Its Subsample Models

open access: yesAxioms
This paper provides a study on optimal prediction problems in a linear model and its subsample models with linear stochastic restrictions, using matrix theory for precise analytical solutions.
Nesrin Güler
doaj   +1 more source

Estimation of Modulation Index for Partial Response CPM Signal

open access: yesIEEE Access, 2018
Continuous phase modulation (CPM) is a power and bandwidth efficient modulation scheme used in cellular, personal, and satellite communications among other applications.
Tayyaba Munawar   +3 more
doaj   +1 more source

Multimodal Data‐Driven Microstructure Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang   +4 more
wiley   +1 more source

Parameter Estimation for the Log-Logistic Distribution Based on Order Statistics

open access: yesRevstat Statistical Journal, 2018
In this paper, we discuss the moments and product moments of the order statistics in a sample of size n drawn from the log-logistic distribution. We provide more compact forms for the mean, variance and covariance of order statistics.
Mohammad Ahsanullah , Ayman Alzaatreh
doaj   +1 more source

Best linear unbiased estimate using buys-ballot procedure when trend-cycle component is linear [PDF]

open access: yes, 2011
The Best linear unbiased estimate (BLUE) of Buys-Ballot estimates when trend-cycle component is linear are discussed in this paper. The estimates are those proposed by Iwueze and Nwogu (2004). Discussed are the Chain Based Estimation (CBE) method and the
Ajaraogu, Jude C.   +2 more
core  

Bio‐Orthogonally Crosslinked Supramolecular Polymer Bottlebrush Hydrogels for Long‐Term 3D Cell Culture

open access: yesAdvanced Functional Materials, EarlyView.
Fibrous benzenetrispeptide (BTP) hydrogels, fabricated via strain‐promoted azide‐alkyne cycloaddition (SPAAC) crosslinking, form robust, bioinert networks. These hydrogels can support 3D cell culture, where cell viability and colony growth depend on the fiber content.
Ceren C. Pihlamagi   +5 more
wiley   +1 more source

Equivalence Analysis of Statistical Inference Results under True and Misspecified Multivariate Linear Models

open access: yesMathematics, 2022
This paper provides a complete matrix analysis on equivalence problems of estimation and inference results under a true multivariate linear model Y=XΘ+Ψ and its misspecified form Y=XΘ+ZΓ+Ψ with an augmentation part ZΓ through the cogent use of various ...
Bo Jiang, Yongge Tian
doaj   +1 more source

Orthogonal Block Structure and Uniformly Best Linear Unbiased Estimators [PDF]

open access: yes, 2019
Models with orthogonal block structure, OBS, have variance covariance matrices that are linear combinations [...]
Ferreira, Sandra S.   +4 more
openaire   +3 more sources

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