Results 71 to 80 of about 3,152,770 (169)

Sparse Variable Selection on High Dimensional Heterogeneous Data With Tree Structured Responses

open access: yesIEEE Access
We consider the problem of sparse variable selection on high dimension heterogeneous data sets, which has been taking on renewed interest recently due to the growth of biological and medical data sets with complex, non-i.i.d.
Hui Liu   +5 more
doaj   +1 more source

The application of propensity score methods in observational studies

open access: yesFrontiers in Applied Mathematics and Statistics
IntroductionIn research, it is crucial to accurately estimate treatment effects and analyze experimental results. Common methods include comparing outcome differences between different groups and using linear regression models for analysis.
Yuejuan Zhao
doaj   +1 more source

Mechanical optimization of plate-screw interfaces in variable-angle locking systems: a parametric study

open access: yesFrontiers in Bioengineering and Biotechnology
IntroductionVariable-angle locking systems offer increased surgical flexibility by permitting off-axis screw insertion, with some designs allowing angulation up to 15°.
Chen-Chiang Lin   +5 more
doaj   +1 more source

Simulation Study for Variable Selection in Quantile Regression

open access: yesWasit Journal for Pure Sciences
Six essential techniques for variable selection in quantile regression models are thoroughly examined in this work. Quantile Lasso, gamma-divergence, quantile elastic net, quantile adaptive Lasso, quantile SCAD, and quantile MCP are some of these ...
HUSSEIN HASHEM
doaj   +1 more source

Study on Nonlinear Behavior of Variable Thickness Plates

open access: yesInternational Journal of Engineering and Management Sciences
The analysis of variable-thickness plates is much more complicated than that of uniform-thickness plates because variable coefficients occur in the equations.
Lan Hoang That Ton
doaj   +1 more source

[The research protocol IV: study variables].

open access: yesRevista alergia Mexico (Tecamachalco, Puebla, Mexico : 1993), 2016
The variables in a research study are all that is measured, the information collected, or the data that is collected in order to answer the research questions, which are specified in the objectives. Their selection is essential to the research protocol. This article aims to point out the elements to be considered in the section of the variables.
Miguel Ángel Villasís-Keever   +1 more
openaire   +2 more sources

Study of fractional variable-order lymphatic filariasis infection model

open access: yesOpen Physics
Variable-order derivatives are the natural extension of ordinary as well as of fractional-order differentiations and integration, respectively. Numerous suggestions for fractional variable-order operators have been made in the literature over time ...
Jeelani Mdi Begum   +3 more
doaj   +1 more source

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