Results 61 to 70 of about 144,075 (292)

Comparison of some Bayesian estimation methods for type-I generalized extreme value distribution with simulation

open access: yesAlexandria Engineering Journal
The Weibull distribution is considered one of the Type-I Generalized Extreme Value (GEV) distribution, and it plays a crucial role in modeling extreme events in various fields, such as hydrology, finance, and environmental sciences. Bayesian methods play
Sundos Bader Habeeb   +7 more
doaj   +1 more source

Al-Si and Al-Si-Mg Cast Alloys Shrinkage Porosity Estimation

open access: yesArchives of Foundry Engineering, 2016
US A356 and US 413 cast aluminium alloys shrinkage characteristic have been discussed in the present study. Specific volume reduction leads to shrinkage in castings and it can be envisaged as a casting defect.
Samavedam S., Sundarrajan S.
doaj   +1 more source

Minimax and Adaptive Inference in Nonparametric Function Estimation [PDF]

open access: yes, 2012
Since Stein's 1956 seminal paper, shrinkage has played a fundamental role in both parametric and nonparametric inference. This article discusses minimaxity and adaptive minimaxity in nonparametric function estimation.
Cai, T. Tony
core   +4 more sources

Combining Minimax Shrinkage Estimators [PDF]

open access: yesJournal of the American Statistical Association, 1986
Abstract When one estimates a multivariate normal mean, the use of Stein estimation entails both the grouping of coordinates and the selection of a set of targets toward which to shrink each group. In this article we propose new minimax multiple shrinkage estimators that allow for multiple specifications of these aspects.
openaire   +1 more source

Bayesian Estimation Improves Prediction of Outcomes After Epilepsy Surgery

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT We estimated the statistical power of studies predicting seizure freedom after epilepsy surgery. We extracted data from a Cochrane meta‐analysis. The median power across all studies was 14%. Studies with a median sample size or less (n ≤ 56) and a statistically significant result exaggerated the true effect size by a factor of 5.4, while the ...
Adam S. Dickey   +4 more
wiley   +1 more source

Oedometer based estimation of vertical shrinkage of expansive soil in a large instrumeted soil column

open access: yesHeliyon, 2019
The moisture variations in expansive soils cause shrink-swell behaviour, resulting in distress to the structures founded in/on problematic soils. The oedometer based tests can be used to determine swell behaviour of soil; however, limited research has ...
Rajitha Shehan Udukumburage   +2 more
doaj   +1 more source

Stein Estimation for Spherically Symmetric Distributions: Recent Developments

open access: yes, 2012
This paper reviews advances in Stein-type shrinkage estimation for spherically symmetric distributions. Some emphasis is placed on developing intuition as to why shrinkage should work in location problems whether the underlying population is normal or ...
Brandwein, Ann Cohen   +1 more
core   +1 more source

Impact of Asymptomatic Intracranial Hemorrhage on Outcome After Endovascular Stroke Treatment

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Endovascular treatment (EVT) achieves high rates of recanalization in acute large‐vessel occlusion (LVO) stroke, but functional recovery remains heterogeneous. While symptomatic intracranial hemorrhage (sICH) has been well studied, the prognostic impact of asymptomatic intracranial hemorrhage (aICH) after EVT is less certain ...
Shihai Yang   +22 more
wiley   +1 more source

Lasso Estimation of an Interval-Valued Multiple Regression Model

open access: yes, 2015
A multiple interval-valued linear regression model considering all the cross-relationships between the mids and spreads of the intervals has been introduced recently.
A. Blanco-Fernández   +6 more
core   +1 more source

Financial Distress and Its Determinants in Rheumatoid Arthritis

open access: yesArthritis Care &Research, EarlyView.
Objective To quantify the degree of financial distress and identify its determinants in adults with rheumatoid arthritis (RA) given the frequent prolonged use of expensive disease‐modifying therapies. Methods We identified adults enrolled in the FORWARD databank with either RA or noninflammatory musculoskeletal disease (NIMSKD) completing the ...
Amber Brown Keebler   +5 more
wiley   +1 more source

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