نتایج جستجو برای: multiquadric

تعداد نتایج: 202  

Journal: :Computers, materials & continua 2023

This work focuses on radial basis functions containing no parameters with the main objective being to comparatively explore more of their effectiveness. For this, a total sixteen forms shapeless are gathered and investigated under context pattern recognition problem through structure function neural networks, use Representational Capability (RC) algorithm. Different sizes datasets disturbed noi...

Journal: :محیط شناسی 0
علیرضا نورپور دانشیار گروه مهندسی محیط زیست، دانشکدۀ محیط زیست، دانشگاه تهران سید محمد علی فیض دانشجوی کارشناسی ارشد مهندسی محیط زیست، دانشکدۀ محیط زیست، دانشگاه تهران

introduction studies about the health effects of long-term average exposure to outdoor air pollution have played an important role in the recent health impact assessments. exposure assessment for epidemiological studies of long-term exposure to ambient air pollution remains a difficult challenge because of substantial small-scale spatial variation. current approaches for assessing intra-urban ai...

Journal: :International Journal of Solids and Structures 2007

Journal: :Computers & Mathematics with Applications 1994

Journal: :SIAM J. Scientific Computing 2007
Nail A. Gumerov Ramani Duraiswami

We consider a preconditioned Krylov subspace iterative algorithm presented by Faul et al. (IMA Journal of Numerical Analysis (2005) 25, 1—24) for computing the coefficients of a radial basis function interpolant over N data points. This preconditioned Krylov iteration has been demonstrated to be extremely robust to the distribution of the points and the iteration rapidly convergent. However, th...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بناب - دانشکده علوم پایه 1393

در این پایان نامه روش عددی جدید مطرح شده برای معادله ی برگر و برگر- هوکسلی با استفاده از تابع پایه ای شعاعی مالتی کووادریک برای تقریب فضایی و مرتبه ی دوم طرح تفاضل متناهی فشرده بکار گرفته شده است.

Journal: :Journal of Approximation Theory 2017
Martin D. Buhmann Oleg Davydov

While it was noted by R. Hardy and proved in a famous paper by C. A. Micchelli that radial basis function interpolants s(x) = ∑ λjφ(‖x − xj‖) exist uniquely for the multiquadric radial function φ(r) = √ r2 + c2 as soon as the (at least two) centres are pairwise distinct, the error bounds for this interpolation problem always demanded an added constant to s. By using Pontryagin native spaces, we...

م ضارب نیا, م. تختی

In this article, we apply the Multiquadric radial basis function (RBF) interpo-lation method for nding the numerical approximation of traveling wave solu-tions of the Kawahara equation. The scheme is based on the Crank-Nicolsonformulation for space derivative. The performance of the method is shown innumerical examples.

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