Constructive Approximation manuscript No. (will be inserted by the editor) Power Series Kernels
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| Název: | Constructive Approximation manuscript No. (will be inserted by the editor) Power Series Kernels |
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| Autoři: | Barbara Zwicknagl |
| Přispěvatelé: | The Pennsylvania State University CiteSeerX Archives |
| Zdroj: | http://www.mis.mpg.de/preprints/2006/preprint2006_155.pdf. |
| Rok vydání: | 2006 |
| Sbírka: | CiteSeerX |
| Témata: | multivariate polynomial approximation, Bernstein theorem, dot prod- uct kernels, reproducing kernel Hilbert spaces, error bounds, convergence orders |
| Popis: | We introduce a class of analytic positive definite multivariate kernels which includes infinite dot product kernels as sometimes used in machine learning, certain new nonlinearly factorizable kernels and a kernel which is closely related to the Gaussian. Each such kernel reproduces in a certain ‘native ‘ Hilbert space of multivariate analytic functions. If functions from this space are interpolated in scattered locations by translates of the kernel, we prove spectral convergence rates of the interpolants and all derivatives. By truncation of the power series of the kernel-based interpolants, we constructively generalize the classical Bernstein theorem concerning polynomial approximation of analytic functions to the multi-variate case. An application to machine learning algorithms is presented. |
| Druh dokumentu: | text |
| Popis souboru: | application/pdf |
| Jazyk: | English |
| Relation: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.86.5528; http://www.mis.mpg.de/preprints/2006/preprint2006_155.pdf |
| Dostupnost: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.86.5528 http://www.mis.mpg.de/preprints/2006/preprint2006_155.pdf |
| Rights: | Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
| Přístupové číslo: | edsbas.C6C1A6E3 |
| Databáze: | BASE |
Nájsť tento článok vo Web of Science | Abstrakt: | We introduce a class of analytic positive definite multivariate kernels which includes infinite dot product kernels as sometimes used in machine learning, certain new nonlinearly factorizable kernels and a kernel which is closely related to the Gaussian. Each such kernel reproduces in a certain ‘native ‘ Hilbert space of multivariate analytic functions. If functions from this space are interpolated in scattered locations by translates of the kernel, we prove spectral convergence rates of the interpolants and all derivatives. By truncation of the power series of the kernel-based interpolants, we constructively generalize the classical Bernstein theorem concerning polynomial approximation of analytic functions to the multi-variate case. An application to machine learning algorithms is presented. |
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