Results 1 to 10 of about 8,085 (191)

An adaptive hybrid quadrature scheme: Combining Simpson's rule and Gaussian quadrature for enhanced numerical integration. [PDF]

open access: yesPLoS ONE
This study develops a novel adaptive hybrid quadrature that combines Simpson's 1/3 rule with Gauss-Legendre quadrature to overcome the classical difficulties in performing numerical integration.
Abadi Abraha Asgedom   +1 more
doaj   +2 more sources

Importance Gaussian Quadrature [PDF]

open access: yesIEEE Transactions on Signal Processing, 2021
Importance sampling (IS) and numerical integration methods are usually employed for approximating moments of complicated target distributions. In its basic procedure, the IS methodology randomly draws samples from a proposal distribution and weights them accordingly, accounting for the mismatch between the target and proposal.
Víctor Elvira, Luca Martino, Pau Closas
openaire   +3 more sources

Trigonometric and Gaussian Quadrature [PDF]

open access: yesMathematics of Computation, 1970
Some relationships are established between trigonometric quadrature and various classical quadrature formulas. In particular Gauss-Legendre quadrature is shown to be a limiting case of trigonometric quadrature.
Knight, C. J., Newbery, A. C. R.
openaire   +2 more sources

Gaussian Quadrature for Kernel Features. [PDF]

open access: yesAdv Neural Inf Process Syst, 2017
Neural Information Processing Systems (NIPS ...
Dao T, De Sa C, Ré C.
europepmc   +5 more sources

A numerical integration-based Kalman filter for moderately nonlinear systems

open access: yesTellus: Series A, Dynamic Meteorology and Oceanography, 2020
This paper introduces a computationally efficient data assimilation scheme based on Gaussian quadrature filtering that potentially outperforms current methods in data assimilation for moderately nonlinear systems.
Sarah A. King   +2 more
doaj   +1 more source

Efficient and accurate numerical-projection of electromagnetic multipoles for scattering objects

open access: yesFrontiers of Optoelectronics, 2023
In this paper, we develop an efficient and accurate procedure of electromagnetic multipole decomposition by using the Lebedev and Gaussian quadrature methods to perform the numerical integration.
Wenfei Guo   +4 more
doaj   +1 more source

Estimating Non-Gaussianity of a Quantum State by Measuring Orthogonal Quadratures

open access: yesEntropy, 2022
We derive the lower bounds for a non-Gaussianity measure based on quantum relative entropy (QRE). Our approach draws on the observation that the QRE-based non-Gaussianity measure of a single-mode quantum state is lower bounded by a function of the ...
Jiyong Park
doaj   +1 more source

Szegő Quadrature Kalman Filter for Oscillatory Systems

open access: yesIEEE Access, 2020
Filtering problems with oscillatory system dynamics commonly appear in real-life. However, the existing Gaussian filters, like the unscented Kalman filter (UKF), cubature Kalman filter CKF, Gauss-Hermite filter (GHF) and cubature quadrature Kalman filter
Abhinoy Kumar Singh
doaj   +1 more source

Legendre wavelet method combined with the Gauss quadrature rule for numerical solution of fractional integro-differential equations [PDF]

open access: yesIranian Journal of Numerical Analysis and Optimization, 2022
In this paper, we use a novel technique to solve the nonlinear fractional Volterra-Fredholm integro-differential equations (FVFIDEs). To this end, the Legendre wavelets are used in conjunction with the quadrature rule for converting the problem into a ...
M. Riahi Beni
doaj   +1 more source

A bivariate longitudinal cluster model with application to the {C}ognitive {R}eflection {T}est [PDF]

open access: yesTutorials in Quantitative Methods for Psychology, 2022
The Cognitive Reflection Test (CRT) is a test designed to assess subjects' ability to override intuitively appealing but incorrect responses. Psychologists are concerned with whether subjects improve their scores on the test with repeated exposure, in ...
Berkowitz, Matthew   +1 more
doaj   +1 more source

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