Results 21 to 30 of about 382,992 (165)

Conducting simulation studies for computerized adaptive testing using SimulCAT: an instructional piece [PDF]

open access: yesJournal of Educational Evaluation for Health Professions, 2018
Computerized adaptive testing (CAT) technology is widely used in a variety of licensing and certification examinations administered to health professionals in the United States.
Kyung (Chris) Tyek Han
doaj   +1 more source

Energy conservation and numerical stability for the reduced MHD models of the non-linear JOREK code [PDF]

open access: yes, 2015
In this paper we present a rigorous derivation of the reduced MHD models with and without parallel velocity that are implemented in the non-linear MHD code JOREK.
Franck, Emmanuel   +3 more
core   +4 more sources

Stochastic Newton Sampler: The R Package sns

open access: yesJournal of Statistical Software, 2016
The R package sns implements the stochastic Newton sampler (SNS), a MetropolisHastings Markov chain Monte Carlo (MCMC) algorithm where the proposal density function is a multivariate Gaussian based on a local, second-order Taylor-series expansion of log ...
Alireza S. Mahani   +3 more
doaj   +1 more source

A general second order complete active space self-consistent-field solver for large-scale systems [PDF]

open access: yes, 2017
We present a new second order complete active space self-consistent field implementation to converge wavefunctions for both large active spaces and large atomic orbital (AO) bases.
Chan, Garnet Kin-Lic   +2 more
core   +3 more sources

A full-modified-Newton step infeasible interior-point method for monotone linear complementarity problem

open access: yesپژوهش‌های ریاضی, 2021
By using a new search direction, we propose an infeasible interior-point method for monotone linear complementarity problem. The algorithm uses only one feasibility step in each iteration, and we prove that it suffices in order to obtain a polynomial ...
Nezameddin Mahdavi-Amiri   +1 more
doaj  

A full-Newton step feasible interior-point algorithm for P∗(κ)-LCP based on a new search direction

open access: yesCroatian Operational Research Review, 2016
In this paper, we present a full-Newton step feasible interior-point algorithm for a P∗(κ) linear complementarity problem based on a new search direction.
Behrouz Kheirfam, Masoumeh Haghighi
doaj   +1 more source

Evaluation of iterative Kalman smoother schemes for multi-decadal past climate analysis with comprehensive Earth system models [PDF]

open access: yesGeoscientific Model Development, 2018
Paleoclimate reconstruction based on assimilation of proxy observations requires specification of the control variables and their background statistics.
J. García-Pintado, A. Paul
doaj   +1 more source

An improved search direction based on algebraic equivalent transformation technique for convex quadratic optimization [PDF]

open access: yesIranian Journal of Numerical Analysis and Optimization
This work presents an improved interior point algorithm with full Newton step for convex quadratic optimization. Based on the technique of algebraic equivalent transformation, we first propose a new search direction for convex quadratic optimization with
Aicha Kraria   +2 more
doaj   +1 more source

Assessing the benefits of approximately exact step sizes for Picard and Newton solver in simulating ice flow (FEniCS-full-Stokes v.1.3.2) [PDF]

open access: yesGeoscientific Model Development
Solving the momentum balance is the computationally expensive part of simulating the evolution of ice sheets. The momentum balance is described by the nonlinear full-Stokes equations, which are solved iteratively. We use the Picard iteration and Newton's
N. Schmidt   +4 more
doaj   +1 more source

A New and Efficient Interior Point Method Based on a Weight Vector for Solving LCCO Problems

open access: yesJournal of Optimization, Differential Equations and Their Applications
In this paper, we propose a new full-Newton step weighted interior point method for solving linearly constrained convex optimization problems (LCCO).
Nawel Boudjellal, Djamel Benterki
doaj   +1 more source

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