نتایج جستجو برای: radial basis function rbf

تعداد نتایج: 1583750  

Journal: :Journal of Fundamental and Applied Sciences 2018

Journal: :نظریه تقریب و کاربرد های آن 0
م ضارب نیا دانشگاه محقق اردبیلی م. تختی دانشگاه محقق اردبیلی

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.

Journal: :iranian journal of allergy, asthma and immunology 0
mohsen kazemi department of biotechnology and medical engineering, faculty of bioscience and medical engineering, universiti teknologi malaysia, malaysia malarvili bala krishnan department of biotechnology and medical engineering, faculty of bioscience and medical engineering, universiti teknologi malaysia, malaysia teo aik howe emergency department, hospital pulau pinang, pinang, malaysia

in this paper, the method of differentiating asthmatic and non-asthmatic patients using the  frequency analysis of  capnogram  signals is presented.  previously, manual study on capnogram signal has been conducted  by several researchers. all past researches showed significant correlation between capnogram signals and asthmatic patients. however all of them are just manual study conducted throu...

2006
Yuehui Chen Yan Wang Bo Yang

Hierarchical RBF networks consist of multiple RBF networks assembled in different level or cascade architecture. In this paper, an evolved hierarchical RBF network was employed to detect the breast cancel. For evolving a hierarchical RBF network model, Extended Compact Genetic Programming (ECGP), a tree-structure based evolutionary algorithm and the Differential Evolution (DE) are used to find ...

2009
Renato Tinós Luiz Otávio Murta Júnior

Radial Basis Function Networks (RBFNs) have been successfully employed in several function approximation and pattern recognition problems. In RBFNs, radial basis functions are used to compute the activation of artificial neurons. The use of different radial basis functions in RBFN has been reported in the literature. Here, the use of the q-Gaussian function as a radial basis function in RBFNs i...

1992
Dietrich Wettschereck Thomas Dietterich J E Moody S J Hanson R P Lippmann

Three methods for improving the performance of (gaussian) radial basis function (RBF) networks were tested on the NETtalk task. In RBF, a new example is classiied by computing its Euclidean distance to a set of centers chosen by unsupervised methods. The application of supervised learning to learn a non-Euclidean distance metric was found to reduce the error rate of RBF networks, while supervis...

1991
Dietrich Wettschereck Thomas G. Dietterich

Three methods for improving the performance of (gaussian) radial basis function (RBF) networks were tested on the NETtaik task. In RBF, a new example is classified by computing its Euclidean distance to a set of centers chosen by unsupervised methods. The application of supervised learning to learn a non-Euclidean distance metric was found to reduce the error rate of RBF networks, while supervi...

Journal: :Neural networks : the official journal of the International Neural Network Society 2005
Daming Shi Daniel S. Yeung Junbin Gao

Conventionally, a radial basis function (RBF) network is constructed by obtaining cluster centers of basis function by maximum likelihood learning. This paper proposes a novel learning algorithm for the construction of radial basis function using sensitivity analysis. In training, the number of hidden neurons and the centers of their radial basis functions are determined by the maximization of ...

Journal: :Appl. Soft Comput. 2011
Sultan Noman Qasem Siti Mariyam Hj. Shamsuddin

This paper proposes an adaptive evolutionary radial basis function (RBF) network algorithm to evolve accuracy and connections (centers and weights) of RBF networks simultaneously. The problem of hybrid learning of RBF network is discussed with the multi-objective optimization methods to improve classification accuracy for medical disease diagnosis. In this paper, we introduce a time variant mul...

Journal: :CoRR 2002
W. Chen

Despite such very appealing features of the radial basis function (RBF) as inherent meshfree and independent of dimension and geometry, the various RBF-based schemes [1] of solving partial differential equations (PDE’s) still confront some deficiencies. For instances, the lack of easy-to-use spectral convergent RBFs, ill-conditioning and costly evaluation of full interpolation matrix. The purpo...

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