Results 71 to 80 of about 326 (178)

Multi‐Spacecraft Magnetic Field Reconstructions: A Cross‐Scale Comparison of Methods

Earth and Space Science, Volume 11, Issue 3, March 2024.
Abstract Space plasma studies frequently use in situ magnetic field measurements taken from many spacecraft simultaneously. A useful data product of these measurements is the reconstructed magnetic field in a volume near the spacecraft observatory. We compare a standard Linear method of computing the magnetic field at arbitrary spatial points to two ...
T. Broeren, K. G. Klein, J. M. TenBarge
wiley   +1 more source

Making conditionally negative definite radial basis function interpolation well-conditioned by adding cardinal basis functions

Ain Shams Engineering Journal, 2018
A class of basis functions so called well-conditioned RBF (WRBFs) has been introduced. This basis has been manipulated by adding cardinal functions to the conditionally negative definite RBFs of order 1, such as Multiquadric functions 1+(∊r)2 (MQ) and ...
Saeed Kazem, Edmund A. Chadwick, Ali Hatam   +2 more
doaj   +1 more source

A univariate quasi-multiquadric interpolationwith better smoothness

Computers & Mathematics with Applications, 2004
A univariate quasi-interpolation scheme is proposed which is derivative-free and efficient. Since it is a quasi-interpolation method, no linear systems need to be solved for computing the required coefficients; this makes it also suitable for smoothing.
openaire   +2 more sources

Wetlands Water Level Measurements From the New Generation of Satellite Laser Altimeters: Systematic Spatial‐Temporal Evaluation of ICESat‐2 and GEDI Missions Over the South Florida Everglades

Water Resources Research, Volume 60, Issue 3, March 2024.
Abstract The ICESat‐2 and GEDI missions were launched in 2018, becoming the new generation of space‐borne laser altimeters. These missions provide unprecedented global geodetic elevations, opening great opportunities for water level monitoring. The potential of these altimeters has been demonstrated in open‐water environments such as lakes, rivers, and
Sebastián Palomino‐Ángel, Shimon Wdowinski, Shanshan Li   +2 more
wiley   +1 more source

Ore resource estimation based on radial based functions - Case study on União Luiz and Morro do Carrapato Gold Deposits (Alta Floresta Gold Province)

REM: International Engineering Journal
Radial basis functions can be used as an alternative method for mineral resource estimation when ordinary kriging cannot be done because it is impossible to calculate an experimental variogram.
Taís Celestino dos Santos, Jorge Kazuo Yamamoto   +1 more
doaj   +1 more source

Cost-efficient BLE fingerprint database construction approach via multi-quadric RBF interpolation

EURASIP Journal on Wireless Communications and Networking, 2019
The demand for indoor localization is becoming urgent, but the traditional location fingerprint approach takes a lot of manpower and time to construct a fine-grained location fingerprint database.
Liangbo Xie, Xiaoxiao Jin, Mu Zhou, Yue Wang, Zengshan Tian   +4 more
doaj   +1 more source

Efficient Scheme for the Economic Heston–Hull–White Problem Using Novel RBF-FD Coefficients Derived from Multiquadric Function Integrals

Mathematics
This study presents an efficient method using the local radial basis function finite difference scheme (RBF-FD). The innovative coefficients are derived from the integrals of the multiquadric (MQ) function.
Tao Liu, Zixiao Zhao, Shiyi Ling, Heyang Chao, Hasan Fattahi Nafchi, Stanford Shateyi   +5 more
doaj   +1 more source

Meshfree RBF-FD Discretization with Three-Point Stencils for Nonlinear Pricing Options Having Transaction Costs

Mathematics
This paper presents a computational framework for resolving a nonlinear extension of the Black–Scholes partial differential equation that accounts for transaction costs through a volatility function dependent on the Gamma of the option price.
Haifa Bin Jebreen, Yurilev Chalco-Cano, Hongzhou Wang   +2 more
doaj   +1 more source

An Efficient RBF-Based Collocation Approach for Second-Order Fractional Partial Integro-Differential Problems with Singular Kernel [PDF]

Journal of Applied and Computational Mechanics
This paper presents an efficient numerical method for solving second-order time-fractional partial integro-differential equations (PIDEs) with weakly singular kernels.
Arshed Ali, Imtiaz Ahmad
doaj   +1 more source

Random embedded calibrated statistical blind steganalysis using cross validated support vector machine and support vector machine with particle swarm optimization. [PDF]

Sci Rep, 2023
Shankar DD, Azhakath AS.
europepmc   +1 more source