Presentation | 2012-03-09 A Note on Multi-Kernel Adaptive Learning Based on RKHS Projection Ryuichiro ISHII, Masahiro YUKAWA, |
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Abstract(in Japanese) | (See Japanese page) |
Abstract(in English) | A multi-kernel adaptive learning based on RKHS projection (MKAL-RKHS) is investigated. It is first shown that the existing kernel adaptive learning algorithms can be classified into two categories from the vector space projection viewpoint: RKHS projection and parameter-pace projection approaches. A batch approach to determining convex combination coefficients to multiple kernels by Wrapper method based on optimization with an Ivanov regularization is then introduced, and a MKAL-RKHS algorithm employing the combination coefficients is presented. In kernel adaptive learning, an unknown nonlinear function is approximated by a linear combination of multiple Gaussian functions centered respectively at selected data points. In MKAL-RKHS, the shapes of functions are all the same at any selected data points. On the other hand, in the multi-kernel adaptive learning based on parameter-space projection (MKAL-PS) [Yukawa 2010], the shapes of functions are automatically adjusted independently from point to point so that the shape of function at each point fits the unknown function. The MKAL-RKHS and MKAL-PS algorithms are applied to online prediction of nonlinear time series data, and their performance is evaluated by simulations. |
Keyword(in Japanese) | (See Japanese page) |
Keyword(in English) | kernel adaptive filter / multiple kernels / reproducing kernel Hilbert space (RKHS) / orthogonal projection |
Paper # | CAS2011-163,SIP2011-183,CS2011-155 |
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Committee | CAS |
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Conference Date | 2012/3/1(1days) |
Place (in Japanese) | (See Japanese page) |
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Registration To | Circuits and Systems (CAS) |
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Language | JPN |
Title (in Japanese) | (See Japanese page) |
Sub Title (in Japanese) | (See Japanese page) |
Title (in English) | A Note on Multi-Kernel Adaptive Learning Based on RKHS Projection |
Sub Title (in English) | |
Keyword(1) | kernel adaptive filter |
Keyword(2) | multiple kernels |
Keyword(3) | reproducing kernel Hilbert space (RKHS) |
Keyword(4) | orthogonal projection |
1st Author's Name | Ryuichiro ISHII |
1st Author's Affiliation | Dept. Electrical and Electronic Engineering, Niigata University() |
2nd Author's Name | Masahiro YUKAWA |
2nd Author's Affiliation | Dept. Electrical and Electronic Engineering, Niigata University |
Date | 2012-03-09 |
Paper # | CAS2011-163,SIP2011-183,CS2011-155 |
Volume (vol) | vol.111 |
Number (no) | 465 |
Page | pp.pp.- |
#Pages | 6 |
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