Results 101 to 110 of about 5,741 (199)

GLUMIP 2.0: SAS/IML Software for Planning Internal Pilots [PDF]

open access: yes
Internal pilot designs involve conducting interim power analysis (without interim data analysis) to modify the final sample size. Recently developed techniques have been described to avoid the type~I error rate inflation inherent to unadjusted hypothesis
Christopher S. Coffey   +2 more
core   +1 more source

Variable selection in linear-circular regression models. [PDF]

open access: yesJ Appl Stat, 2023
Camli O, Kalaylioglu Z, SenGupta A.
europepmc   +1 more source

Honey, I shrunk the sample covariance matrix [PDF]

open access: yes
The central message of this paper is that nobody should be using the sample covariance matrix for the purpose of portfolio optimization. It contains estimation error of the kind most likely to perturb a mean-variance optimizer.
Michael Wolf, Olivier Ledoit
core  

Complexity and Entropy Analysis to Improve Gender Identification from Emotional-Based EEGs. [PDF]

open access: yesJ Healthc Eng, 2021
Al-Qazzaz NK   +4 more
europepmc   +1 more source

Wavelet Analysis and Denoising: New Tools for Economists [PDF]

open access: yes
This paper surveys the techniques of wavelets analysis and the associated methods of denoising. The Discrete Wavelet Transform and its undecimated version, the Maximum Overlapping Discrete Wavelet Transform, are described.
Iolanda Lo Cascio
core  

Multiple Parameters Determination for Image and Video Reconstruction Using Genetic Algorithm and Generalized Stein’s Unbiased Risk Estimation

open access: yesIEEE Access, 2019
This paper proposes a heuristic multi-parameter optimization method for image and video reconstruction. The method is embedded in an evolutionary computation framework in which a set of parameters are encoded into chromosomes of an individual, and a generalized Stein's unbiased risk estimation (GSURE) is employed as a fitness function.
Zhi Dou, Lin Sun, Weiping Ding
openaire   +1 more source

A High Precision Machine Learning-Enabled System for Predicting Idiopathic Ventricular Arrhythmia Origins. [PDF]

open access: yesFront Cardiovasc Med, 2022
Zheng J   +7 more
europepmc   +1 more source

Robust multi-coil MRI reconstruction via self-supervised denoising. [PDF]

open access: yesMagn Reson Med
Aali A   +4 more
europepmc   +1 more source

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