Results 151 to 160 of about 147,801 (260)
Nonlinear Schwarz Preconditioning for Quasi-Newton Methods
We propose the nonlinear restricted additive Schwarz (RAS) preconditioning strategy to improve the convergence speed of limited memory quasi-Newton (QN) methods. We consider both "left-preconditioning" and "right-preconditioning" strategies. As the application of the nonlinear preconditioning changes the standard gradients and Hessians to their ...
openaire +2 more sources
Nonlinear Model Order Reduction on Polynomial Manifolds for Computational Homogenisation Problems
ABSTRACT Model order reduction (MOR) techniques utilising nonlinear approximation spaces can search for solutions to computational homogenisation problems on low‐dimensional approximation spaces. In combination with hyperreduction techniques, this allows for computations on representative volume elements (RVEs) to be accelerated by multiple orders of ...
Erik Faust, Lisa Scheunemann
wiley +1 more source
Black-Winged Kite Algorithm Integrating Opposition-Based Learning and Quasi-Newton Strategy. [PDF]
Zhao N, Wang T, Zhu Y.
europepmc +1 more source
Experimental methods in chemical engineering: Atomic absorption spectrometry—AAS
Abstract Elements absorb electromagnetic radiation (light) of a specific wavelength in proportion to the number of atoms in its path. As the atoms absorb this light energy, electrons rise from the ground state to an excited state. In atomic absorption spectrometry (AAS), high temperatures produce clouds of atoms from the sample (atomization) and ...
Emily Cintia Tossi de A. Costa +4 more
wiley +1 more source
Research on solving the equilibrium point of 5DOF vehicle dynamics system based on homotopy method. [PDF]
Shi S +5 more
europepmc +1 more source
ABSTRACT Aim Self‐assessment is critical in nursing education, enabling students to reflect on their cognitive and clinical skills while helping educators identify gaps in competencies. Combining subjective self‐assessment with the objectivity of Objective Structured Clinical Examinations (OSCEs) supports learning adjustments.
Virginia La Rosa‐Salas +4 more
wiley +1 more source
Efficient EM Estimation for the Pogit Model via Polya-Gamma Augmentation. [PDF]
Gutiérrez I, Ramírez S, Jofré L.
europepmc +1 more source
ABSTRACT Real‐world randomized controlled trials (RCTs) evaluating multifaceted interventions often employ multiple study outcomes to measure treatment effects on a small set of underlying constructs. Motivated by a longitudinal RCT evaluating a behavioural intervention, the Arthritis Health Journal (AHJ), we propose a latent‐factor multivariate ...
Lulu Guo +3 more
wiley +1 more source
Damping factor estimation of damped complex sinusoidal signals using a maximum likelihood approach. [PDF]
Karthikeyan A, Rahul AK, Tiwari R.
europepmc +1 more source
Variable Selection in Mixed‐Effects Location‐Scale and Location‐Shift Models
ABSTRACT When ordinal responses to questionnaires structured on the basis of Likert scales show differing variability or heterogeneity in subgroups of the population, appropriate regression approaches that are able to take this issue into account are the location‐scale and location‐shift model.
Moritz Berger, Maria Iannario
wiley +1 more source

