Results 141 to 150 of about 113,075 (317)

Hypothesis Testing in Linear Regression when K/N is Large [PDF]

open access: yes
This paper derives the asymptotic distribution of the F-test for the significance of linear regression coefficients as both the number of regressors, k, and the number of observations, n, increase together so that their ratio remains positive in the ...
Calhoun, Gray
core  

Artificial Intelligence in Systemic Sclerosis: Clinical Applications, Challenges, and Future Directions

open access: yesArthritis Care &Research, EarlyView.
Systemic sclerosis (SSc) is a rare autoimmune disease defined by immune dysregulation, vasculopathy, and progressive fibrosis of the skin and internal organs. Despite advances in care, major complications such as interstitial lung disease (ILD) and myocardial involvement remain the leading causes of morbidity and mortality.
Cristiana Sieiro Santos   +2 more
wiley   +1 more source

Optimal design for prediction using local linear regression and the DSI-criterion [PDF]

open access: yes, 2013
When it is anticipated that data to be collected from an experiment cannot be adequately described by a low-order polynomial, alternative modelling and new design methods are required.
Fisher, Verity A.   +2 more
core  

Statistical inference for function-on-function linear regression

open access: yesBernoulli
Function-on-function linear regression is important for understanding the relationship between the response and the predictor that are both functions. In this article, we propose a reproducing kernel Hilbert space approach to function-on-function linear regressionvia the penalised least square, regularized by the thin-plate spline smoothness penalty ...
Dette, Holger, Tang, Jiajun
openaire   +4 more sources

Discordance Between Patient and Physician Global Assessments in Early Systemic Sclerosis

open access: yesArthritis Care &Research, EarlyView.
Objective This study aims to identify factors associated with patient global assessment (PtGA) and physician global assessment (PhGA) and discordance between them in systemic sclerosis (SSc). Methods Data from adults with early SSc (<5 years) from the Collaborative National Quality and Efficacy Registry were included.
Ellen Romich   +35 more
wiley   +1 more source

Exact optimal and adaptive inference in regression models under heteroskedasticity and non-normality of unknown forms [PDF]

open access: yes, 2008
In this paper, we derive simple point-optimal sign-based tests in the context of linear and nonlinear regression models with fixed regressors. These tests are exact, distribution-free, robust against heteroskedasticity of unknown form, and they may be ...
Taamouti, Abderrahim, Dufour, Jean-Marie
core  

Simulation-Based Inference: Random Sampling vs. Random Assignment? What Instructors Should Know

open access: yesJournal of Statistics and Data Science Education
“Simulation-based inference” is often considered a pedagogical strategy for helping students develop inferential reasoning, for example, giving them a visual and concrete reference for deciding whether the observed statistic is unlikely to happen by ...
Beth Chance   +5 more
doaj   +1 more source

Neighborhood Socioeconomic Status and Short‐Term Functional Outcomes in Systemic Lupus Erythematosus

open access: yesArthritis Care &Research, EarlyView.
Objective Individuals with systemic lupus erythematosus (SLE) can accumulate functional status (FS) impairment. We evaluated the association between neighborhood socioeconomic disadvantage, as measured by the Area Deprivation Index (ADI), and FS in a national SLE sample.
Baljeet Rai   +7 more
wiley   +1 more source

An exact, unified distributional characterization of statistics used to test linear hypotheses in simple regression models [PDF]

open access: yes
The Wald, likelihood ratio and Lagrange multiplier test statistics are commonly used to test linear restrictions in regression models. It is shown that for testing these restrictions in the classical regression model, the exact densities of these test ...
Parker, Thomas
core   +1 more source

Consumed by Abdominal Distention

open access: yes
Arthritis Care &Research, EarlyView.
Abimbola Fadairo‐Azinge   +3 more
wiley   +1 more source

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