Results 11 to 20 of about 11,744,309 (247)

A note on the polynomial approximation of vertex singularities in the boundary element method in three dimensions [PDF]

open access: yes, 2008
We study polynomial approximations of vertex singularities of the type $r^\lambda |\log r|^\beta$ on three-dimensional surfaces. The analysis focuses on the case when $\lambda > -\frac 12$.
Bespalov, A
core   +7 more sources

Algorithms and error bounds for multivariate piecewise constant approximation [PDF]

open access: yes, 2011
We review the surprisingly rich theory of approximation of functions of many vari- ables by piecewise constants. This covers for example the Sobolev-Poincar´e inequalities, parts of the theory of nonlinear approximation, Haar wavelets and tree ...
Davydov, Oleg
core   +4 more sources

A heuristic approximation method for the Banzhaf index for voting games [PDF]

open access: yes, 2012
The Banzhaf index is a well known and widely used index for measuring the power a player has in a voting game. However, the problem of computing this index is computationally hard.
Jennings, Nicholas R.   +2 more
core   +2 more sources

Iterative methods for the force-based quasicontinuum approximation : analysis of a 1D model problem [PDF]

open access: yes, 2011
Force-based atomistic-continuum hybrid methods are the only known pointwise consistent methods for coupling a general atomistic model to a finite-element continuum model.
Luskin, Mitchell Barry   +7 more
core   +1 more source

Stability, instability, and error of the force-based quasicontinuum approximation [PDF]

open access: yes, 2009
Due to their algorithmic simplicity and high accuracy, force-based model coupling techniques are popular tools in computational physics. For example, the force-based quasicontinuum (QCF) approximation is the only known pointwise consistent quasicontinuum
Luskin, Mitchell Barry   +5 more
core   +1 more source

Deneutrosophication of Neutrosophic Bézier Surface Approximation Model [PDF]

open access: yesNeutrosophic Sets and Systems
The deneutrosophication process is a process transforming from neutrosophic values to crisp output values. It is the final step for the operations within a neutrosophic set and system.
Siti Nur Idara Rosli   +1 more
doaj   +1 more source

An Optimized Method for Nonlinear Function Approximation Based on Multiplierless Piecewise Linear Approximation

open access: yesApplied Sciences, 2022
In this paper, we propose an optimized method for nonlinear function approximation based on multiplierless piecewise linear approximation computation (ML-PLAC), which we call OML-PLAC.
Hongjiang Yu   +4 more
doaj   +1 more source

Efficiency of the stochastic approximation method [PDF]

open access: yesYugoslav Journal of Operations Research, 2012
The practical aspect of the stochastic approximation method (SA) is studied. Specifically, we investigated the efficiency depending on the coefficients that generate the step length in optimization algorithm, as well as the efficiency depending on the
Japundžić Miloš
doaj   +1 more source

Electrostatic Discharge Current Linear Approach and Circuit Design Method

open access: yesEnergies, 2010
The Electrostatic Discharge phenomenon is a great threat to all electronic devices and ICs. An electric charge passing rapidly from a charged body to another can seriously harm the last one.
Pavlos K. Katsivelis   +4 more
doaj   +1 more source

Approximation method of multiple consistency constraint under differential privacy

open access: yesTongxin xuebao, 2021
Under differential privacy, to solve the optimal publishing problem with multiple consistency constraints, an approximation method of multiple consistency constraints was proposed by the theoretical analysis of the principle of optimal consistency ...
Jianping CAI   +4 more
doaj  

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